Refine
Year of publication
Document Type
- Conference Proceeding (539) (remove)
Language
- English (456)
- German (70)
- Multiple languages (10)
- French (2)
- Russian (1)
Keywords
- Archiv (4)
- Information Structure (4)
- Nachlass (4)
- Cloud Computing (3)
- E-Learning (3)
- E-Mail Tracking (3)
- ERP (3)
- MOOC (3)
- Privacy (3)
- enterprise systems (3)
- knowledge management (3)
- middleware (3)
- social media (3)
- Blockchain (2)
- COVID-19 (2)
- CPS (2)
- Constraint Solving (2)
- Deduction (2)
- Didaktik (2)
- EMOTIKON (2)
- Forschungsprojekte (2)
- Future SOC Lab (2)
- Hochschuldidaktik (2)
- In-Memory Technologie (2)
- Informatik (2)
- Informatikdidaktik (2)
- Internet of Things (2)
- Interoception (2)
- Linear Mixed Models (2)
- Logic Programming (2)
- Logics (2)
- Multicore Architekturen (2)
- Onlinelehre (2)
- Optimization (2)
- Planing (2)
- Platform Innovation (2)
- Universitätsarchiv (2)
- Verbrechen (2)
- Verfassungsgerichtsbarkeit (2)
- additive particle (2)
- big data (2)
- cloud computing (2)
- conversational agents (2)
- creativity (2)
- crime (2)
- crisis communication (2)
- digital education (2)
- e-learning (2)
- education (2)
- enteprise-level (2)
- evaluation (2)
- higher education (2)
- information systems research (2)
- knowledge transfer (2)
- künstliche Intelligenz (2)
- learning (2)
- machine learning (2)
- maschinelles Lernen (2)
- online course (2)
- online course creation (2)
- online course design (2)
- prediction (2)
- priming (2)
- privacy (2)
- self-disclosure (2)
- "Big Data"-Dienste (1)
- ATLAS.t (1)
- Adipositas (1)
- Alpha-amylase (1)
- Analytic Infrastructures (1)
- Analytics (1)
- Angst (1)
- Aortic valve (1)
- Architekturkonzept (1)
- Aspektorientierte Softwareentwicklung (1)
- Assessment (1)
- Audience Response System (1)
- Ausbildung (1)
- Auswirkungen auf Schüler (1)
- Automatentheorie (1)
- Backgrounding (1)
- Bankenregulierung (1)
- Bankrecht (1)
- Bedürfnisse (1)
- Begnadigung (1)
- Betriebssysteme (1)
- Bildung (1)
- Bildungswissenschaft (1)
- Blood (1)
- Browser Platform (1)
- Browser Platforms (1)
- Bürgerliches Recht (1)
- COCOMO (1)
- Cardiac rehabilitation (1)
- Case Study (1)
- Changing World (1)
- Chrome (1)
- Classroom Response System (1)
- Clicker (1)
- Cloud (1)
- Coccinelle (1)
- Competition (1)
- Compton and pair creation telescope (1)
- Computer Science Education (1)
- Computerlinguistik (1)
- Consensus algorithms (1)
- Construal (1)
- Contrast (1)
- Convergent thinking (1)
- Coring (1)
- Correction (1)
- Countermeasures (1)
- Covid pandemic effects (1)
- Creative process (1)
- Creativity (1)
- Cross-System (1)
- Customization (1)
- Cyber-Phsysische Systeme (1)
- Cyber-Physical Manufacturing Systems (1)
- Dealing with mistakes (1)
- Decentral Decision Making (1)
- Depression (1)
- Developmental gains (1)
- Didaktische Konzepte (1)
- Digital Marketplaces (1)
- Digital Platforms (1)
- Digital-Enabled Human-Information Interaction (1)
- Digitale Bildung (1)
- Discontinued Features (1)
- Diversität (1)
- Drama (1)
- Dynamic Pricing (1)
- EMG (1)
- ERP system (1)
- Echtzeitmessung (1)
- Embodiment (1)
- Emotionen (1)
- Emotions (1)
- Empirical Modelling (1)
- Emulsion (1)
- Endliche Automaten (1)
- Enterprise Resource Planning (1)
- Enterprise Resource Planning (ERP) System (1)
- Enterprise System (1)
- Entwicklung Russlands (1)
- Essstörung (1)
- Euro (1)
- Euro-Financial-Crisis (1)
- Euro-Finanzkrise (1)
- Europa (1)
- Exercise tests (1)
- FORTH (1)
- FabLabs (1)
- Fachdidaktik (1)
- Feature Removal (1)
- Felix-App (1)
- Fiktion (1)
- Finanzmärkte (1)
- Finanzrecht (1)
- Firefox (1)
- Focus (1)
- Focus-sensitivity (1)
- Fokus (1)
- Fokussensitivität (1)
- Folteropfer (1)
- Fontane, Theodor (1)
- Fourier Integraloperatoren (1)
- Game-based learning (1)
- Gamma-ray astronomy (1)
- Gesellschaft (1)
- Gesellschaftrecht (1)
- Gewalt (1)
- Givenness (1)
- Gnade (1)
- Grundrechte (1)
- HDI (1)
- Heart Rate (1)
- Hebbel (1)
- Herodotos (1)
- Heterogenität (1)
- History of pattern occurrences (1)
- Hochschullehre (1)
- Holocaust (1)
- Huguenots (1)
- ICT (1)
- ISSEP (1)
- Impulsivität (1)
- In-Memory technology (1)
- Individualization (1)
- Industrial Analytics (1)
- Industry 4.0 (1)
- Informatics (1)
- Informatics Education (1)
- Informatikstudium (1)
- Information Security and Privacy (1)
- Informationsstruktur (1)
- Innovation in Organizations: Learning (1)
- Instragram (1)
- Integration (1)
- Intentional Forgetting (1)
- Internationale Finanzpolitik (1)
- Internationale Kooperation der Juristischen Fakultät Potsdam (1)
- Ishkashimi (1)
- Justitiabilität (1)
- Key Competencies (1)
- Keyage children (1)
- Kinderpsychologie / Jugendpsychologie / Psychische Störung (1)
- Klimaänderung (1)
- Klinische Psychologie (1)
- Konferenz (1)
- Kongress (1)
- Konstitutionalisierung (1)
- Kreditwesen (1)
- Kriegsopfer (1)
- Krimi (1)
- Kriminalroman (1)
- Kulturmanagement (1)
- Kulturwissenschaften (1)
- Kursdesign (1)
- Kwa languages (1)
- LOGO (1)
- Lagrange Distributionen (1)
- Lagrangian submanifolds (1)
- Landesverfassung (1)
- Langzeitverhalten (1)
- Lean Core (1)
- Learning Analytics (1)
- Lebenslanges Lernen (1)
- Lehramtsstudium (1)
- Lernen (1)
- Liberalisierung (1)
- Life-Long Learning (1)
- Literature Review (1)
- MCT oil (1)
- Machine Learning (1)
- Markedness (1)
- Markov processes (1)
- Markovprozesse (1)
- Massenverlust (1)
- Measuring Efficient Task Processing (1)
- Medialisierung (1)
- Mellin (1)
- Micro Degree (1)
- Middleware (1)
- Migration (1)
- Milk (1)
- Mobile Software Ecosystems (1)
- Mobiles Lernen (1)
- Modeling (1)
- Modification (1)
- Motivation (1)
- Mozilla Firefox (1)
- Mythos (1)
- NMDL (1)
- Narration (1)
- NatRiskChange (1)
- Natural Hazards (1)
- Naturgefahren (1)
- Nazi Germany (1)
- Neurostimulation (1)
- Newsletter (1)
- Older-than-keyage children (1)
- Online Marketing (1)
- Online-Lehre (1)
- Onlinekurs (1)
- Onlinekurs-Produktion (1)
- Optimal Control (1)
- PF Interface (1)
- Papert (1)
- Personal Response System (1)
- Personalization (1)
- Physical Fitness (1)
- Physical fitness (1)
- Platform Coring (1)
- Pockets of creativity (1)
- Point of Care Assay and Vitamin A (1)
- Polonist (1)
- Polonistik (1)
- Pooled Data (1)
- Presse (1)
- Price Cycles (1)
- Primary school children (1)
- Problems (1)
- Process Mining (1)
- Production (1)
- Professionswissen (1)
- Prolog (1)
- Prosody (1)
- Protestantismus (1)
- Prusse (1)
- Pseudo-differential algebras (1)
- RFID (1)
- Raumwirtschaftstheorie (1)
- Reaction Time (1)
- Rechtsgeschichte (1)
- Rechtsvergleichung (1)
- Rechtsvergleichung Russland (1)
- Regionale Untersuchung (1)
- Requirements (1)
- Research Agenda (1)
- Response Strategies (1)
- Romanistik (1)
- Russian History (1)
- Russian Scrambling (1)
- Russian Sign Language (1)
- Russisches Recht (1)
- Russisches Völkerrecht (1)
- Russland (1)
- Salivary (1)
- Sars-CoV-2 (1)
- Schlaf- und Traumforschung (1)
- Schlüsselkompetenzen (1)
- Schulpolitik (1)
- Second World War (1)
- Security (1)
- Sektorale Untersuchung (1)
- Sign Language of the Netherlands (1)
- Slavistik (1)
- Software Platforms (1)
- Soviet History (1)
- Sprachverarbeitung (1)
- Squashes pulp (1)
- Stability (1)
- Status und Aufgaben des Verfassungsgerichts (1)
- Sternwinde (1)
- Strahlungstransport (1)
- Sustainability (1)
- Symposium (1)
- Systematic literature revieew (1)
- Systemsoftware (1)
- TAVI (1)
- Tagung (1)
- Tailoring (1)
- The Sharing Economy (1)
- Three-tier Architecture (1)
- Topic (1)
- Topik (1)
- Tragödie (1)
- Trait Anxiety (1)
- Transcatheter Aortic Valve Implantation (1)
- Transcutaneous Auricular Vagus Nerve Stimulation (1)
- US Intensity (1)
- US Work-up (1)
- UV light (1)
- Umgang mit Fehlern (1)
- Unlearning (1)
- Unternehmens- und Gesellschaftsrecht (1)
- Urheberrecht (1)
- VIL (1)
- Verfassungs- und Staatsangehörigkeitsrecht (1)
- Verfassungsentstehung und -änderung (1)
- Verfassungsgericht (1)
- Verfassungsidentität (1)
- Verfassungsprinzipien (1)
- Verfassungsrecht (1)
- Vermarktung (1)
- Vernetzung Fachwissenschaft (1)
- Verwaltung von Rechenzentren (1)
- Verzweigungsprozesse (1)
- Virtuelle Maschinen (1)
- Woche des Russischen Rechts (1)
- XM (1)
- airbnb (1)
- analytical framework (1)
- argument structure (1)
- artifical intelligence (1)
- artificial intelligence (1)
- artificial neural networks (1)
- aspect adapter (1)
- aspect oriented programming (1)
- aspect-oriented (1)
- aspects (1)
- aspectualization (1)
- attitude-behaviour gap (1)
- augmentation (1)
- automata theory (1)
- backpropagation (1)
- bank regulation (1)
- big data services (1)
- body mass index procedure (1)
- body surface area (1)
- bottom–up (1)
- bracketing paradox (1)
- branching processes (1)
- bug tracking (1)
- built–in predicates (1)
- business models (1)
- business process (1)
- business process optimization (1)
- business process platform (1)
- carotenoids bioavailability (1)
- case study (1)
- case-based reasoning (1)
- certolizumab pegol (1)
- child / adolescent / mental-health problem (1)
- children (1)
- clinical psychology (1)
- clinicians (1)
- co-creation (1)
- cognitive activation (1)
- cognitive levels (1)
- cognitive load theory (1)
- cold pressor pain (1)
- commercialization (1)
- commitment (1)
- company law (1)
- comparative law (1)
- complexity (1)
- computational linguistics (1)
- concurrency (1)
- consistency (1)
- constitutional law (1)
- content knowledge (1)
- contrast (1)
- copyright law (1)
- crime fiction (1)
- crohn's disease (1)
- crosscutting wrappers (1)
- cyber-physical production systems (1)
- cyber-physical systems (1)
- data center management (1)
- data mining (1)
- data security (1)
- data-driven artifacts (1)
- deductive databases (1)
- deep reinforcement learning (1)
- degree of givenness (1)
- deleted tweets (1)
- design-science research (1)
- development in russia (1)
- didactics (1)
- digital identity (1)
- digital platform openness (1)
- digitale Hochschullehre (1)
- digitalization (1)
- dimensional (1)
- discourse referent (1)
- distributed ledger technology (1)
- distributed systems (1)
- documentation (1)
- doubling (1)
- dynamic reconfiguration (1)
- eating disorder (1)
- economic geography (1)
- eference Architecture Model (1)
- effects on pupils (1)
- electromagnetic (1)
- emotion (1)
- empirical evaluation (1)
- engagement (1)
- enhancement (1)
- enterprise architecture (1)
- enterprise ecosystems: the integrated enterprise (1)
- enterprise system (1)
- ethics (1)
- europäische Integration (1)
- experience (1)
- experiment (1)
- explicit knowledge (1)
- extensions of logic programs (1)
- fMRI (1)
- false information (1)
- fat-free mass (1)
- federated industrial platform ecosystems (1)
- feedback (1)
- fiction (1)
- financial markets (1)
- finite-state automata (1)
- floods (1)
- focus (1)
- focus particle (1)
- foregrounding (1)
- forgetting (1)
- forward / backward chaining (1)
- fried (1)
- function symbols (1)
- future curriculum (1)
- game-based learning (1)
- gaming (1)
- gamma-ray polarization (1)
- generalized logic programs (1)
- geomorphology (1)
- global change (1)
- group-subgroup relations (1)
- halide perovskites (1)
- hallow offshore (1)
- health crisis (1)
- high-energy astrophysical phenomena (1)
- historie intellecturelle (1)
- historie sociale (1)
- hospitals (1)
- human-AI interaction (1)
- hybrid simulation (1)
- hydrodynamic modeling (1)
- hydrodynamische Modellierung (1)
- identity management (1)
- immersion (1)
- improvement (1)
- impulsivity (1)
- industry 4.0 (1)
- infliximab (1)
- informatics (1)
- information flow control (1)
- information gateway (1)
- information status (1)
- integral Fourier operators (1)
- intention-behaviour gap (1)
- interventions (1)
- invasive aspects (1)
- is governance (1)
- it/business alignment (1)
- knowledge crystallization (1)
- knowledge management system (1)
- knowledge representation (1)
- knowledge transfers (1)
- language erp (1)
- learner characteristics (1)
- lebenslanges Lernen (1)
- legal history (1)
- levels of information systems research (process, enterprise-, ecosystem- & industry-level) (1)
- linical databases (1)
- literature review (1)
- long-time behaviour (1)
- lutein ester (1)
- macromolecular decay (1)
- makromolekularer Zerfall (1)
- manufacturing systems (1)
- mass loss (1)
- massereiche Sterne (1)
- massive stars (1)
- media literacy (1)
- mediated conversation (1)
- mental health (1)
- micro degree (1)
- micro- and nanotechnologies (1)
- micro-credential (1)
- microcredential (1)
- microlocal analysis (1)
- microlokale Analysis (1)
- middle aged / mental health (1)
- mindset (1)
- minorites (1)
- mobile technology (1)
- mobiles lernen (1)
- modelling (1)
- monoclonal antibodies (1)
- morphological analysis (1)
- mountainous rivers (1)
- multi-frequency (1)
- multi-valued logic (1)
- multicore architectures (1)
- narration (1)
- natural hazards (1)
- natural language processing (1)
- needs (1)
- neural networks (1)
- new product development (1)
- nonlinear dynamics (1)
- online courses (1)
- online photographs (1)
- online regrets (1)
- online teaching (1)
- open hardware (1)
- operating systems (1)
- operator calculus (1)
- organizational level (1)
- paraconsistency (1)
- parental mediation (1)
- participatory learning (1)
- pedagogical content knowledge (1)
- perception (1)
- personal development (1)
- persönliche Entwicklung (1)
- pitch accent (1)
- platform acceptance (1)
- primary school children (1)
- prior knowledge (1)
- privacy paradox (1)
- process modelling (1)
- product development (1)
- product generation engineering (1)
- production control (1)
- production engineering computing (1)
- production planning (1)
- production process (1)
- professional knowledge (1)
- program analysis (1)
- programming language (1)
- prominence (1)
- prosody (1)
- prototype (1)
- prototyping process (1)
- pseudodifferential operators (1)
- pseudodifferentiale Operatoren (1)
- radiative transfer (1)
- real-time measurement (1)
- reflection (1)
- regimen (1)
- regional studies (1)
- research challenges (1)
- research projects (1)
- retentivity (1)
- reusable aspects (1)
- reward system (1)
- rubicon model (1)
- rules (1)
- second-order conditioning (1)
- sectoral studies (1)
- security policies (1)
- self-organization (1)
- self-sovereign identity (1)
- semantics (1)
- semiconductors (1)
- sentiment analysis (1)
- service-oriented (1)
- sharing economy (1)
- singular manifolds (1)
- slavic literature (1)
- slavic studies (1)
- slavische Literatur (1)
- smartphone (1)
- social attraction (1)
- social networking sites (1)
- space mission (1)
- spatial economics (1)
- steam-dried (1)
- steamed (1)
- stellar winds (1)
- stratification (1)
- subject-oriented learning (1)
- sustainable product development (1)
- sustained negativity (1)
- symbols (1)
- symposium (1)
- systematic literature review (1)
- systems software (1)
- tacit knowledge (1)
- taxonomy (1)
- teacher education (1)
- teaching (1)
- teamwork (1)
- technologies (1)
- time-domain astronomy (1)
- top– down (1)
- trace data (1)
- transdiagnostic (1)
- trust (1)
- tuple spaces (1)
- twinning (1)
- universitäre Lehrerbildung (1)
- ventral striatum (1)
- verfassungsgerichtliche Kontrolle (1)
- views (1)
- violence (1)
- virtual learning environments (1)
- virtual machines (1)
- visual analytics (1)
- visual normalization theory (1)
- vocational training (1)
- web-tracking (1)
- weight perception (1)
- well-being (1)
- Älterer Mensch / Psychische Gesundheit (1)
- ökonomische Geographie (1)
Institute
- Extern (139)
- Fachgruppe Betriebswirtschaftslehre (59)
- Institut für Biochemie und Biologie (56)
- Department Sport- und Gesundheitswissenschaften (40)
- Institut für Ernährungswissenschaft (36)
- Department Psychologie (29)
- Institut für Künste und Medien (23)
- Interdisziplinäres Zentrum für Musterdynamik und Angewandte Fernerkundung (23)
- Institut für Informatik und Computational Science (20)
- Institut für Slavistik (17)
Different properties of programs, implemented in Constraint Handling Rules (CHR), have already been investigated. Proving these properties in CHR is fairly simpler than proving them in any type of imperative programming language, which triggered the proposal of a methodology to map imperative programs into equivalent CHR. The equivalence of both programs implies that if a property is satisfied for one, then it is satisfied for the other. The mapping methodology could be put to other beneficial uses. One such use is the automatic generation of global constraints, at an attempt to demonstrate the benefits of having a rule-based implementation for constraint solvers.
Enterprise Resource Planning (ERP) system customization is often necessary because companies have unique processes that provide their competitive advantage. Despite new technological advances such as cloud computing or model-driven development, technical ERP customization options are either outdated or ambiguously formulated in the scientific literature. Using a systematic literature review (SLR) that analyzes 137 definitions from 26 papers, the result is an analysis and aggregation of technical customization types by providing clearance and aligning with future organizational needs. The results show a shift from ERP code modification in on-premises systems to interface and integration customization in cloud ERP systems, as well as emerging technological opportunities as a way for customers and key users to perform system customization. The study contributes by providing a clear understanding of given customization types and assisting ERP users and vendors in making customization decisions.
Does a smile open all doors?
(2020)
Online photographs govern an individual’s choices across a variety of contexts. In sharing arrangements, facial appearance has been shown to affect the desire to collaborate, interest to explore a listing, and even willingness to pay for a stay. Because of the ubiquity of online images and their influence on social attitudes, it seems crucial to be able to control these aspects. The present study examines the effect of different photographic self-disclosures on the provider’s perceptions and willingness to accept a potential co-sharer. The findings from our experiment in the accommodation-sharing context suggest social attraction mediates the effect of photographic self-disclosures on willingness to host. Implications of the results for IS research and practitioners are discussed.
During a crisis event, social media enables two-way communication and many-to-many information broadcasting, browsing others’ posts, publishing own content, and public commenting. These records can deliver valuable insights to approach problematic situations effectively. Our study explores how social media communication can be analyzed to understand the responses to health crises better. Results based on nearly 800 K tweets indicate that the coping and regulation foci framework holds good explanatory power, with four clusters salient in public reactions: 1) “Understanding” (problem-promotion); 2) “Action planning” (problem-prevention); 3) “Hope” (emotion-promotion) and 4) “Reassurance” (emotion-prevention). Second, the inter-temporal analysis shows high volatility of topic proportions and a shift from self-centered to community-centered topics during the course of the event. The insights are beneficial for research on crisis management and practicians who are interested in large-scale monitoring of their audience for well-informed decision-making.
Helping overcome distance, the use of videoconferencing tools has surged during the pandemic. To shed light on the consequences of videoconferencing at work, this study takes a granular look at the implications of the self-view feature for meeting outcomes. Building on self-awareness research and self-regulation theory, we argue that by heightening the state of self-awareness, self-view engagement depletes participants’ mental resources and thereby can undermine online meeting outcomes. Evaluation of our theoretical model on a sample of 179 employees reveals a nuanced picture. Self-view engagement while speaking and while listening is positively associated with self-awareness, which, in turn, is negatively associated with satisfaction with meeting process, perceived productivity, and meeting enjoyment. The criticality of the communication role is put forward: looking at self while listening to other attendees has a negative direct and indirect effect on meeting outcomes; however, looking at self while speaking produces equivocal effects.
Despite the phenomenal growth of Big Data Analytics in the last few years, little research is done to explicate the relationship between Big Data Analytics Capability (BDAC) and indirect strategic value derived from such digital capabilities. We attempt to address this gap by proposing a conceptual model of the BDAC - Innovation relationship using dynamic capability theory. The work expands on BDAC business value research and extends the nominal research done on BDAC – innovation. We focus on BDAC's relationship with different innovation objects, namely product, business process, and business model innovation, impacting all value chain activities. The insights gained will stimulate academic and practitioner interest in explicating strategic value generated from BDAC and serve as a framework for future research on the subject
This article provides some insights into the complex relationships between thinking and behavioral patterns, bio graphical aspects and teaching style. The data was analyzed in the Grounded Theory tradition and with the help of ATLAS.ti. The results presented here offer preliminary findings only since the research is still ongoing. The focus is on the ways teachers deal with mistakes. Based on two case examples, it will be shown how the fear of making mistakes can lead to teacher-centered lessons, and thereby limiting pupils' possibilities to learn autonomously.
The “output-orientation” is omnipresent in teacher education. In order to evaluate teachers' and students' performances, a wide range of different quantitative questionnaires exist worldwide. One important goal of teaching evaluation is to increase the quality of teaching and learning. The author argues, that standard evaluations which are typically made at the end of the semester are problematic due to two reasons. The first one is that some of the questions are too general and don`t offer concrete ideas as to what kind of actions can be taken to make the courses better. The second problem is that the evaluation is mostly made when the course is already over. Because of this criticism, Apelojg invented the Felix-App which offers the possibility to give feedback in real-time by asking for the emotions and needs that occur during different learning situations. The idea is very simple: positive emotions and satisfied needs are helpful for the learning process. Negative emotions and unsatisfied needs have negative effects on the learning process. First descriptive results show, that “managing emotions” during classes can have positive effects on both motivation and emotions.
Die Konferenz „International Conference for the 10th Anniversary of the Institute of Comparative Law” hat am 24. Mai 2013 in Szeged stattgefunden. Im Rahmen der viersprachigen Konferenz haben mehr als dreißig Teilnehmer ihre Forschungsergebnisse präsentiert. Der Essay von Zoltán Péteri blickt auf die Disziplin aus der Perspektive der Wissenschaftsgeschichte. Katalin Kelemen und Balázs Fekete gehen in ihrem Aufsatz der Frage nach, welchen Weg die Versuche der Klassifikation der Rechtssysteme von Osteuropa in der späten Phase der Umbrüche der 1980/90er Jahren genommen haben. Die historische Betrachtungsweise mit Bezug auf Rechtsgeschichte und Rechtsvergleichung spiegelt sich auch in anderen Essays wider, vor allem in den Aufsätzen von Szilvia Bató, Magdolna Gedeon und Béla Szabó P. sowie auch in den Aufsätzen von Péter Mezei und Tünde Szűcs. Attila Badó analysiert die Rechtsvergleichung aus der Sicht des Rechts, der Soziologie und der Politikwissenschaft anhand von Untersuchungen über das Sanktionsystem der Richter in den USA. Diese politikwissenschaftliche Seite wird auch in den Aufsätzen über die aktuellen Fragen der europäischen Integration von Carine Guemar und Laureline Congnard betont. Eine Reihe von Aufsätzen behandeln die konventionelle normative Komparatistik auf dem Gebiet des Verfassungsrechts (Jordane Arlettaz und Péter Kruzslicz), Gesellschaftsrechts (Kitti Bakos-Kovács), Urheberrechts (Dóra Hajdú) und Steuerrechts (Judit Jacsó). Daneben bilden eine weitere Gruppe die Aufsätze von János Bóka und Erzsébet Csatlós, die die Verwendung der vergleichenden Methode in der Praxis der Rechtsprechung untersuchen. Die Rechtsvergleichung ist eine sich dynamisch entwickelnde Disziplin. Die Konferenz und dieser Band dienen nicht nur der Würdigung der bisherigen Arbeit des Instituts für Rechtsvergleichung, sondern zeigen gleichzeitig neue Ziele auf. Die wichtigsten Grundsätze bleiben aber fest verankert auch in einem sich stets verändernden rechtlichen und geistigen Umfeld. Das Motto des Instituts lautet „instruere et docere omnes qui edoceri desiderant“ – „alle lehren, die lernen wollen.“ Auch in den folgenden Jahrzehnten werden uns der Wille des Lernens und Lehrens, die Freiheit der Forschung sowie die Übertragung und Weiterentwicklung der ungarischen wie globalen Rechtskultur leiten.
In two experiments, many annotators marked antecedents for discourse deixis as unconstrained regions of text. The experiments show that annotators do converge on the identity of these text regions, though much of what they do can be captured by a simple model. Demonstrative pronouns are more likely than definite descriptions to be marked with discourse antecedents. We suggest that our methodology is suitable for the systematic study of discourse deixis.
Integral Fourier operators
(2017)
This volume of contributions based on lectures delivered at a school on Fourier Integral Operators
held in Ouagadougou, Burkina Faso, 14–26 September 2015, provides an introduction to Fourier Integral Operators (FIO) for a readership of Master and PhD students as well as any interested layperson. Considering the wide
spectrum of their applications and the richness of the mathematical tools they involve, FIOs lie the cross-road of many a field. This volume offers
the necessary background, whether analytic or geometric, to get acquainted with FIOs, complemented by more advanced material presenting various aspects of active research in that area.
Der Band enthält die Vorträge, welche anlässlich der Verabschiedung von Detlev W. Belling in den Ruhestand gehalten wurden:
Der Beitrag des Ministers der Justiz von Ungarn, László Trócsányi, befasst sich mit dem Thema Demokratie, Identität und Rechtsstaat – die europäische Integration und die Mitgliedstaaten. Entwickelt wird eine Vision der Europäischen Union, die statt auf fortschreitender Zentralisierung stärker auf einer gleichberechtigten Kooperation der Mitgliedstaaten basiert. Die nationalen Verfassungsidentitäten sollen als unentbehrliche Bestandteile der nationalen Souveränität nicht der europäischen Integration geopfert werden. Vor allem der Grundsatz vom Vorrang des Unionsrechts wird in diesem Zusammenhang kritisch hinterfragt. „Integrationswut“ gelte es zu verhindern. Die Rechtsstaatlichkeit einzelner Mitgliedstaaten dürfe durch die Union nicht infrage gestellt werden.
In seiner Abschlussvorlesung geht Detlev W. Belling der Frage nach, ob und inwieweit die Ausübung der Gnadenbefugnisse durch die Gnadenträger in einem säkularen und republikanischen Rechtsstaat der gerichtlichen Kontrolle unterliegen sollte. Detailliert werden in diesem Zusammenhang nicht nur die bisherige Rechtsprechung des Bundesverfassungsgerichts und das breit gefächerte Meinungsspektrum der Literatur abgebildet. Anhand einer Vielzahl von Beispielen aus der ferneren und unmittelbaren Geschichte wird die Entwicklung des Gnadenrechts nachgezeichnet. Missbrauchsgefahren, wie sie nicht nur kennzeichnend für Diktaturen und Monarchien sind, werden aufgezeigt. Die Erkenntnisse aus der historischen Darstellung aufgreifend, wird anhand einer umfassenden Analyse der geltenden Rechtslage nachgewiesen, aus welchen Gründen die Konstitutionalisierung des Begnadigungsrechts geboten ist.
Die zwölfte Konferenz des Forschungskreises Vereinte Nationen wurde am 28. Juni 2014 an der Universität Potsdam veranstaltet und stand unter dem Thema „Konzepte für die Reform der Vereinten Nationen“. Dabei wurde das komplexe Verhältnis zwischen Reformnotwendigkeit und Machbarkeitserwartungen einerseits und ausgebliebenen weitreichenden Strukturreformen und erfolgten „kleineren“, pragmatischen Reformschritten andererseits deutlich. Mit den vier Referaten stellte die Konferenz in der Tradition der Potsdamer UNO-Konferenzen die Verbindung von Wissenschaft und Praxis unter Beteiligung unterschiedlicher Disziplinen her.
Mit der Broschüre soll allen Interessierten die Möglichkeit gegeben werden, Einblick in ausgewählte Schwerpunkte der Reformdiskussion zu erhalten:
An ein Grundsatzreferat zu bisherigen Reformprozessen im UN-System insgesamt schließen sich drei Texte an, die das Verhältnis zwischen den Vereinten Nationen und den nichtstaatlichen Akteuren in den Blick nehmen, die relativ neue Institution des Menschenrechtsrates als Teil der Reformbemühungen betrachten und schließlich Ergebnisse und Trends bei den Reformen der Arbeitsmethoden des Sicherheitsrates erörtern.
Abstract interpretation-based model checking provides an approach to verifying properties of infinite-state systems. In practice, most previous work on abstract model checking is either restricted to verifying universal properties, or develops special techniques for temporal logics such as modal transition systems or other dual transition systems. By contrast we apply completely standard techniques for constructing abstract interpretations to the abstraction of a CTL semantic function, without restricting the kind of properties that can be verified. Furthermore we show that this leads directly to implementation of abstract model checking algorithms for abstract domains based on constraints, making use of an SMT solver.
This article describes a HMM-based word-alignment method that can selectively enforce a contiguity constraint. This method has a direct application in the extraction of a bilingual terminological lexicon from a parallel corpus, but can also be used as a preliminary step for the extraction of phrase pairs in a Phrase-Based Statistical Machine Translation system. Contiguous source words composing terms are aligned to contiguous target language words. The HMM is transformed into a Weighted Finite State Transducer (WFST) and contiguity constraints are enforced by specific multi-tape WFSTs. The proposed method is especially suited when basic linguistic resources (morphological analyzer, part-of-speech taggers and term extractors) are available for the source language only.
This paper describes a two-level formalism where feature structures are used in contextual rules. Whereas usual two-level grammars describe rational sets over symbol pairs, this new formalism uses tree structured regular expressions. They allow an explicit and precise definition of the scope of feature structures. A given surface form may be described using several feature structures. Feature unification is expressed in contextual rules using variables, like in a unification grammar. Grammars are compiled in finite state multi-tape transducers.
One of the informal properties often used to describe a new virtual world is its degree of openness. Yet what is an “open” virtual world? Does the phrase mean generally the same thing to different people? What distinguishes an open world from a less open world? Why does openness matter anyway? The answers to these questions cast light on an important, but shadowy, and uneasy, topic for virtual worlds: the relationship between those who construct the virtual, and those who use these constructions.
To date, sex and gender differences play only a minor role in medical research and practice, thereby putting individuals’ health at risk. Gender-specific medicine, or the practice of taking these differences into account when conducting research and treating patients so far is being discussed primarily by experts. With people increasingly using social media such as Twitter for sharing and searching for health-related information online, Twitter can potentially educate about gender-specific medicine. However, little is known about the information circulation and the structure of interactions on the Twitter network discussing this topic. Results of a network analysis show that the network exhibits a community-structure, with information exchange being limited and concentrated in silos. This indicates that there is untapped potential for acquiring new information by users through interacting with individuals outside their community. Public health officials may benefit from this insight and tailor online campaigns to enhance awareness on gender-specific medicine.
Die Schule steckt mitten in einem Umbruch: Dieser wird durch verschiedene Faktoren wie sinkende Schülerzahlen, Zu- und Abwanderungen von Familien mit ihren Kindern, wachsenden Zahlen von Schulpflichtigen mit Migrationshintergrund und anderes mehr gekennzeichnet. Damit steht die Schule vor neuen Herausforderungen. Außerdem hält der Trend zum Gymnasium an. Auch wechselvolle Dauerreformen schaffen unübersichtliche Schulstrukturen und erschweren sichere Orientierung. Und: Im zunehmend raueren Wettbewerb der Schultypen laufen den öffentlichen Schulen immer mehr Schüler davon und zu den Privatschulen über. Schon jetzt sehen sich zahlreiche Kommunen gezwungen, ihre Bildungsangebote zurückzuschrauben und ihre Schulen zu schließen.
Kann eine Kommune ihren Bürgern aber nicht mehr die schulische „Grundversorgung“ anbieten, so hat dies weitreichende Folgen. Wo Schulen schließen müssen, „stirbt auch der Ort“. Ein umfangreiches, vielfältiges und flächendeckendes Bildungsangebot dagegen ist für die Kommune tragender Pfeiler einer funktionsfähigen Infrastruktur. Hier setzt die 21. Fachtagung des Kommunalwissenschaftlichen Institutes der Universität Potsdam an. Sie behandelt zentrale Themen der nachhaltigen Gewährleistung schulischer Infrastruktur in den Kommunen einschließlich der dazugehörigen Erfahrungsberichte, die über Best-Practice-Modelle sowie über Erfolgsbedingungen und Fallstricke in der Verwaltungspraxis informieren. Damit gibt die Tagung zugleich Impulse den kommunalen Entscheidungsträgern für die Generierung von und den Umgang mit Gestaltungsoptionen zur Standortsicherung im kommunalen Bildungsmanagement.
Living in a world of plenty?
(2020)
Inequality in the distribution of economic wealth within populations has been rising steadily over the past century, having reached unprecedented highs in many Western societies. However, this development is not reflected in people’s perceptions of wealth inequality, as the public tends to underestimate it. Research suggests that inequality estimates are derived from personal reference groups, which, as we propose, are expanded by social network site (SNS) use. As content on SNSs frequently revolves around events of consumption, signaling enhanced overall population wealth, this study tests the hypothesis that SNS use distorts inequality perceptions downward, i.e., increases the perception of societal equality. Responses of 534 survey participants in the United States confirm that SNS use negatively predicts perceived inequality. The relationship is stronger the more SNS users perceive the content they encounter online as real, supporting the assumption that observing other people’s behavior online lowers estimates of nationwide wealth inequality. These findings provide novel insights on inequality misperceptions by suggesting individuals’ SNS use as a new predictor of perceived wealth inequality.
Das vorliegende Werk ist das Ergebnis der 3. Woche des Russischen Rechts an der Juristischen Fakultät der Universität Potsdam. Namhafte Wissenschaftlerinnen und Wissenschaftler der Moskauer Staatlichen Juristischen Universität O. E. Kutafin hielten Vorträge zum Völkerrecht, Verfassungs- und Staatsangehörigkeitsrecht, Bürgerlichen Recht, Unternehmens- und Gesellschaftsrecht, Finanzrecht und Bankrecht. Das russische Recht befindet sich nach dem Ende der Sowjetunion im Wandel. Die Beiträge zeugen vom hohen Stand der Jurisprudenz an der Moskauer Staatlichen Juristischen Universität O. E. Kutafin. Die Wochen des Russischen Rechts tragen dazu bei, das Recht der Russischen Föderation bei uns in Deutschland bekannt zu machen und rechtsvergleichend zur Diskussion zu stellen.
Future ERP Systems
(2021)
This paper presents a research agenda on the current generation of ERP systems which was developed based on a literature review on current problems of ERP systems. The problems are presented following the ERP life cycle. In the next step, the identified problems are mapped on a reference architecture model of ERP systems that is an extension of the three-tier architecture model that is widely used in practice. The research agenda is structured according to the reference architecture model and addresses the problems identified regarding data, infrastructure, adaptation, processes, and user interface layer.
Track and Treat
(2018)
E-Mail tracking mechanisms gather information on individual recipients’ reading behavior. Previous studies show that e-mail newsletters commonly include tracking elements. However, prior work does not examine the degree to which e-mail senders actually employ gathered user information. The paper closes this research gap by means of an experimental study to clarify the use of tracking-based infor- mation. To that end, twelve mail accounts are created, each of which subscribes to a pre-defined set of newsletters from companies based in Germany, the UK, and the USA. Systematically varying e-mail reading patterns across accounts, each account simulates a different type of user with individual read- ing behavior. Assuming senders to track e-mail reading habits, we expect changes in mailer behavior. The analysis confirms the prominence of tracking in that over 92% of the newsletter e-mails contain tracking images. For 13 out of 44 senders an adjustment of communication policy in response to user reading behavior is observed. Observed effects include sending newsletters at different times, adapting advertised products to match the users’ IT environment, increased or decreased mailing frequency, and mobile-specific adjustments. Regarding legal issues, not all companies that adapt the mail-sending behavior state the usage of such mechanisms in their privacy policy.
E-Mail Tracking
(2016)
E-mail advertisement, as one instrument in the marketing mix, allows companies to collect fine-grained behavioural data about individual users’ e-mail reading habits realised through sophisticated tracking mechanisms. Such tracking can be harmful for user privacy and security. This problem is especially severe since e-mail tracking techniques gather data without user consent. Striving to increase privacy and security in e-mail communication, the paper makes three contributions. First, a large database of newsletter e-mails is developed. This data facilitates investigating the prevalence of e- mail tracking among 300 global enterprises from Germany, the United Kingdom and the United States. Second, countermeasures are developed for automatically identifying and blocking e-mail tracking mechanisms without impeding the user experience. The approach consists of identifying important tracking descriptors and creating a neural network-based detection model. Last, the effectiveness of the proposed approach is established by means of empirical experimentation. The results suggest a classification accuracy of 99.99%.
Coring on Digital Platforms
(2017)
Today’s mobile devices are part of powerful business ecosystems, which usually involve digital platforms. To better understand the complex phenomenon of coring and related dynamics, this paper presents a case study comparing iMessage as part of Apple’s iOS and WhatsApp. Specifically, it investigates activities regarding platform coring, as the integration of several functionalities provided by third-party applications in the platform core. The paper makes three contributions. First, a systematization of coring activities is developed. Coring modes are differentiated by the amount of coring and application maintenance. Second, the case study revealed that the phenomenon of platform coring is present on digital platforms for mobile devices. Third, the fundamentals of coring are discussed as a first step towards theoretical development. Even though coring constitutes a potential threat for third-party developers regarding their functional differentiation, an idea of what a beneficial partnership incorporating coring activities could look like is developed here.
Enterprise systems have long played an important role in businesses of various sizes. With the increasing complexity of today’s business relationships, specialized application systems are being used more and more. Moreover, emerging technologies such as artificial intelligence are becoming accessible for enterprise systems. This raises the question of the future role of enterprise systems. This minitrack covers novel ideas that contribute to and shape the future role of enterprise systems with five contributions.
While Information Systems (IS) Research on the individual and workgroup level of analysis is omnipresent, research on the enterprise-level IS is less frequent. Even though research on Enterprise Systems and their management is established in academic associations and conference programs, enterprise-level phenomena are underrepresented. This minitrack provides a forum to integrate existing research streams that traditionally needed to be attached to other topics (such as IS management or IS governance). The minitrack received broad attention. The three selected papers address different facets of the future role of enterprise-wide IS including aspects such as carbonization, ecosystem integration, and technology-organization fit.
The idea of the continuous improvement process (CIP) helps companies to continuously improve their operation and thereby contributes to their competitiveness. Through digi tization, new potentials emerge to solve known CIP issues. This contribution specifically addresses the individual motivation of employees to contribute to the CIP. Typically, related initiatives lack contributions over time. The use of gamification is a promising way to achieve continuous participation by addressing the individual needs of participants. While the use of extrinsic motivation elements is common in practice, the idea of this approach is to specifically address intrinsic motivations which serve as a long-term motivator. This article contributes to a gam-ification concept for the continuous improvement process. The main results include an adapted CIP, a gamification concept, and a market mechanism. Furthermore, the concept is implemented and demonstrated as a prototype in an online platform.
Die optimale Dimensionierung von IT-Hardware stellt Entscheider aufgrund der stetigen Weiterentwicklung zunehmend vor Herausforderungen. Dies gilt im Speziellen auch für Analytics-Infrastrukturen, die zunehmend auch neue Software zur Analyse von Daten einsetzen, welche in den Ressourcenanforderungen stark variieren. Damit eine flexible und gleichzeitig effiziente Gestaltung von Analytics-Infrastrukturen erreicht werden kann, wird ein dynamisch arbeitendes Architekturkonzept vorgeschlagen, das Aufgaben auf Basis einer systemspezifischen Entscheidungsmaxime mit Hilfe einer Eskalationsmatrix verteilt und hierfür Aufgabencharakteristiken sowie verfügbare Hardwareausstattungen entsprechend ihrer Auslastung berücksichtigt.
Software platforms allow for the extension of features by third-party contributors. Thereby, platform innovation is an important aspects of platforms attractiveness for users and complementors. While previous research focused the introduction of new features, the aspect of feature removal and discontinued features on software platforms has been disregarded. To explore the phenomenon and motivations for feature removal on software platforms, a review of recent literature is provided. To illustrate the existence of and motivations for feature removal, a case study of the browser platform Mozilla Firefox is presented. The results reveal feature removal to regularly occur on browser platforms for user- and developer-related features. Frequent reasons for feature removal involve unused features, security concerns, and bugs. Related motivations for feature removal are discussed from the platform owner's perspective. Implications for complementors and users are highlighted.
Modern web browsers are digital software platforms, as they allow third-parties to extend functionality by providing extensions. Given the intense competition, differentiation through provided functionality is a key factor for browser platforms. As browsers progress, they constantly release new features. Browsers might thereby enter complementary markets if they add functionality formerly provided by third-party extensions, which is referred to as ‘platform coring’. Previous studies missed the perspective of the involved parties. To address this gap, we conduct interviews with third-party and core developers in the security and privacy domain from Firefox and Chrome. In essence, the study provides three contributions. First, insights into stakeholder-specific issues concerning coring. Second, measures to prevent coring. Third, strategical guidance for developers and owners. Third-parties experienced and core developers acknowledged coring to occur on browser platforms. While developers with extrinsic motivations assess coring negatively, developers with intrinsic motivations perceive coring positively.
While Information Systems Research exists at the individual and workgroup levels, research on IS at the enterprise level is less common. The potential synergies between the study of enterprise systems (ES) and related fields have been underexplored and often treated as separate entities. The ongoing challenge is to seamlessly integrate technological advances and align business processes across organizations. While systems integration within an organization is common, changes occur when industry and ecosystem perspectives come into play. The four selected papers address different facets of the future role of enterprise ecosystems, including implementation challenges, ecosystem boundaries, and B2B platform specifics.
Missing out on life
(2020)
Mobile devices have become an integral part of everyday life due to
their portability. As literature shows, technology use is not only beneficial but also has dark sides, such as addiction. Parents face the need to balance perceived benefits and risks of children’s exposure to mobile technologies. However, no study has uncovered what kind of benefits and concerns parents consider when implementing technology-related rules. We built on qualitative responses of 300
parents of children aged two to thirteen to explore concerns about, and perceived benefits of children’s smartphone and tablet usage, as well as the rules parents have developed regarding technology use. Findings point to concerns regarding children’s development, as well as benefits for both children and parents, and ultimately to new insights about mobile technology mediation. These results provide practical guidance for parents, physicians and mobile industry
stakeholders, trying to ensure that children are acting responsibly with mobile technology.
Verbal or visual? : How information is distributed across speech and gesture in spatial dialog
(2006)
In spatial dialog like in direction giving humans make frequent use of speechaccompanying gestures. Some gestures convey largely the same information as speech while others complement speech. This paper reports a study on how speakers distribute meaning across speech and gesture, and depending on what factors. Utterance meaning and the wider dialog context were tested by statistically analyzing a corpus of direction-giving dialogs. Problems of speech production (as indicated by discourse markers and disfluencies), the communicative goals, and the information status were found to be influential, while feedback signals by the addressee do not have any influence.
In the most abstract definition of its operational semantics, the declarative and concurrent programming language CHR is trivially non-terminating for a significant class of programs. Common refinements of this definition, in closing the gap to real-world implementations, compromise on declarativity and/or concurrency. Building on recent work and the notion of persistent constraints, we introduce an operational semantics avoiding trivial non-termination without compromising on its essential features.
We present a new analysis of illocutionary forces in dialogue. We analyze them as complex conversational moves involving two dimensions: what Speaker commits herself to and what she calls on Addressee to perform. We start from the analysis of speech acts such as confirmation requests or whimperatives, and extend the analysis to seemingly simple speech acts, such as statements and queries. Then, we show how to integrate our proposal in the framework of the Grammar for Conversation (Ginzburg, to app.), which is adequate for modelling agents' information states and how they get updated.
Since Harris’ parser in the late 50s, multiword units have been progressively integrated in parsers. Nevertheless, in the most part, they are still restricted to compound words, that are more stable and less numerous. Actually, language is full of semi-fixed expressions that also form basic semantic units: semi-fixed adverbial expressions (e.g. time), collocations. Like compounds, the identification of these structures limits the combinatorial complexity induced by lexical ambiguity. In this paper, we detail an experiment that largely integrates these notions in a finite-state procedure of segmentation into super-chunks, preliminary to a parser.We show that the chunker, developped for French, reaches 92.9% precision and 98.7% recall. Moreover, multiword units realize 36.6% of the attachments within nominal and prepositional phrases.
Jesper Juul has convincingly argued that the conflict over the proper object of study has shifted from “rules or story” to “player or game.” But a key component of digital games is still missing from either of these oppositions: that of the computer itself. This paper offers a way of thinking about the phenomenology of the videogame from the perspective of the computer rather than the game or the player.
Finite state methods for natural language processing often require the construction and the intersection of several automata. In this paper, we investigate the question of determining the best order in which these intersections should be performed. We take as an example lexical disambiguation in polarity grammars. We show that there is no efficient way to minimize the state complexity of these intersections.
Eine verbesserte Zusammenarbeit und Abstimmung von Fachwissenschaft, Fachdidaktik, Bildungswissenschaften und schulpraktischen Lernorten ist einer der Förderbereiche der „Qualitätsoffensive Lehrerbildung“. Zahlreiche der geförderten Projekte haben für dieses Handlungsfeld im Bereich Vernetzung von Fachwissenschaft, Fachdidaktik und Bildungswissenschaften hochschulspezifische Maßnahmen konzipiert und umgesetzt.
Der vorliegende Tagungsband beinhaltet Beiträge von 15 entsprechenden Projekten, von denen sieben anlässlich von zwei standortübergreifenden Projekt-Tagungen in Hannover und Potsdam vorgestellt und in Workshops diskutiert wurden. Insgesamt geben die Beiträge einen theoretisch fundierten und gleichzeitig praxisorientierten Überblick über aktuelle Ansätze und Konzepte zur besseren Vernetzung fachwissenschaftlicher, fachdidaktischer und bildungswissenschaftlicher Studienanteile im Lehramtsstudium. Dargestellt werden Projektarbeiten der Hochschulen, die auf verschiedenen Ebenen wirksam werden (curricular-inhaltliche Ebene, kollegiale Ebene, hochschul-strukturelle Ebene). Die Maßnahmen sind so beschrieben, dass sie als Grundlage für einen Transfer auf andere Fächer bzw. andere Standorte genutzt werden können.
Die Beiträge richten sich an alle Lehrenden im Bereich der Lehramtsbildung sowie sonstige Akteure im Bereich der Lehr- und Qualitätsentwicklung an den Universitäten. Sie alle können den beschriebenen Konzepten und Umsetzungsformaten transferierbare Ideen und Impulse entnehmen.
We have analyzed the spectra of seven Galactic O4 supergiants, with the NLTE wind code CMFGEN. For all stars, we have found that clumped wind models match well lines from different species spanning a wavelength range from FUV to optical, and remain consistent with Hα data. We have achieved an excellent match of the P V λλ1118, 1128 resonance doublet and N IV λ1718, as well as He II λ4686 suggesting that our physical description of clumping is adequate. We find very small volume filling factors and that clumping starts deep in the wind, near the sonic point. The most crucial consequence of our analysis is that the mass loss rates of O stars need to be revised downward significantly, by a factor of 3 and more compared to those obtained from smooth-wind models.
The rise of open source models for software and hardware development has catalyzed the debate regarding sustainable business models. Open Source Software has already become a dominant part in the software industry, whereas Open Source Hardware is still a little-researched phenomenon but has the potential to do the same to manufacturing in a wide range of products. This article addresses this potential by introducing a research design to analyze the prototyping phase of six different Open Source Hardware projects tackling ecological, social, and economical challenges. Using a design science research methodology, a process model is developed to concretise the prototype development steps. The prototype phase is important because it is where fundamental decisions are made that affect the openness of the final product. This paper aims to advance the discourse on open production as a concept that enables companies to apply the aspect of openness towards collaboration-oriented and sustainable business models.
Looking for participation
(2022)
A stronger learner orientation through participatory learning increases learning motivation and results. But what does participatory learning mean? Where do learning factories and fabrication laboratories (FabLabs) stand in this context, and how can didactic implementation be improved in this respect? Using a newly developed analytical framework, which contains elements of the stage model of participation and general media didactics, we compare a FabLab and a learning factory example concerning the degree of participation. From this, we derive guidelines for designing participative teaching and learning processes in learning factories. We explain how FabLabs can be an inspiration for the didactic design of learning factories.
Deductive databases need general formulas in rule bodies, not only conjuctions of literals. This is well known since the work of Lloyd and Topor about extended logic programming. Of course, formulas must be restricted in such a way that they can be effectively evaluated in finite time, and produce only a finite number of new tuples (in each iteration of the TP-operator: the fixpoint can still be infinite). It is also necessary to respect binding restrictions of built-in predicates: many of these predicates can be executed only when certain arguments are ground. Whereas for standard logic programming rules, questions of safety, allowedness, and range-restriction are relatively easy and well understood, the situation for general formulas is a bit more complicated. We give a syntactic analysis of formulas that guarantees the necessary properties.
E-Learning Symposium 2014
(2014)
Der Tagungsband zum E-Learning Symposium 2014 an der Universität Potsdam beleuchtet die diversen Zielgruppen und Anwendungsbereiche, die aktuell in der E-Learning-Forschung angesprochen werden. Während im letzten Symposium 2012 der Dozierende mit den unterschiedlichen Möglichkeiten der Studierendenaktivierung und Lehrgestaltung im Fokus der Diskussionen stand, werden in diesem Jahr in einem großen Teil der Beiträge die Studierenden ins Zentrum der Aufmerksamkeit gerückt. Dass nicht nur der Inhalt des Lernmediums für den Lernerfolg eine Rolle spielt, sondern auch dessen Unterhaltungswert und die Freude, die die Lernenden während des Prozesses der Wissensakquise empfinden, zeigt sehr anschaulich die Keynote von Linda Breitlauch zum Thema „Faites vos Jeux“ (Spielen Sie jetzt). Der Beitrag von Zoerner et al. verbindet den Gedanken des spiele-basierten Lernens mit dem nach wie vor aktuellen Thema des mobilen Lernens. Auch in diesem Forschungsbereich spielt die Fokussierung auf den Lernenden eine immer herausragendere Rolle. Einen Schritt weiter in Richtung Individualisierung geht in diesem Zusammenhang der eingeladene Vortrag von Christoph Rensing, der sich mit der Adaptivität von mobilen Lernanwendungen beschäftigt. Mit Hilfe zur Verfügung stehender Kontextinformationen sollen gezielt individuelle Lernprozesse unterstützt werden. Alle Beiträge, die sich auf mobile Applikationen und auf Spiele beziehen, sprechen auch die zwischenmenschliche Komponente am Lernen an. So wird neben der Mobilität insbesondere auch der Austausch von Lernobjekten zwischen Lernenden (vergleiche den Beitrag von Zoerner et al.) sowie die Kooperation zwischen Lernenden (siehe Beitrag von Kallookaran und Robra-Bissantz) diskutiert. Der interpersonelle Kontakt spielt allerdings ebenfalls in den Beiträgen ohne Spiel- oder App-Fokussierung eine Rolle. Tutoren werden beispielsweise zur Moderation von Lernprozessen eingesetzt und Lerngruppen gegründet um das problem-orientierte Lernen stärker in den Mittelpunkt zu rücken (siehe Beitrag von Mach und Dirwelis) bzw. näher am Bedarf der Studierenden zu arbeiten (wie in eingeladenen Vortrag von Tatiana N. Noskova sowie in dem Beitrag von Mach und Dirwelis beschrieben). In der Evaluation wird ebenfalls der Schritt weg von anonymen, akkumulierten statistischen Auswertungen hin zu individualisierten Nutzerprofilen im Bereich des Learning Analytics untersucht (vergleiche dazu den Beitrag von Ifenthaler). Neben der Schwerpunktsetzung auf die Lernenden und deren Mobilität rückt das Thema Transmedialität stärker ins Zentrum der Forschung. Während schon die Keynote mit ihrem Spielefokus darauf anspricht, geht es in weiteren Beiträgen darum Abläufe aus der analogen Welt bestmöglich in der digitalen Welt abzubilden. Lerninhalte, die bisher mittels Bildern und Texten für Lehrende und Lernende zugänglich gemacht wurden, werden nunmehr mit weiteren Medien, insbesondere Videos, angereichert um deren Verständnis zu erhöhen. Dies ist beispielsweise geeignet, um Bewegungsabläufe im Sport (vergleiche dazu den Beitrag von Owassapian und Hensinger) oder musikpraktische Übungen wie Bodyperkussion (beschrieben im Beitrag von Buschmann und Glasemann) zu erlernen Lernendenfokussierung, persönlicher Austausch, Mobilität und Transmedialität sind somit einige der Kernthemen, die Sie in diesem Sammelband erwarten. Auch zeigt die häufige Verknüpfung verschedener dieser Kernthemen, dass keines davon ein Randthema ist, sondern sich die Summe aus allen im E-Learning bündelt und damit eine neue Qualität für Lehre, Studium und Forschung erreicht werden kann.
Halide perovskites
(2021)
Stand des IMAF zu Beginn des Jahres 2006
Zum 1. April 2005 wurde per Beschluss des Rektorats der Universität Potsdam das Interdisziplinäre Zentrum für Musterdynamik und Angewandte Fernerkundung (IMAF) an der Universität Potsdam eingerichtet. Diesem Beschluss gingen knapp zwei Jahre konzeptionelle, organisatorische und administrative Vorarbeiten voraus. Inzwischen ist das IMAF also offiziell gegründet, der Vorstand wurde „bestellt“ (Prof. M. Mutti. Prof. E. Zehe, Prof. A. Bronstert), der Geschäftsführer bzw. wissenschaftliche Koordinator Dr. M. Kühling arbeitet in dieser Funktion seit Sommer 2005 und seit kurzem ist auch die 1. Version der Homepage des IMAF (http://www.uni-potsdam.de/imaf/) frei geschaltet. Auch die Infrastruktur des IMAF ist in der Entstehungsphase: Büroräume sind versprochen (wenn auch noch nicht bezugsfertig) im Haus 13 auf dem Campus Golm der Universität Potsdam und der 1. erfolgreiche Drittmittelantrag erbrachte 8 leistungsfähige Tischrechner und einen Server für das IMAF aus EU-Mitteln. Wichtiger als die administrativen und organisatorischen Arbeiten sind aber die inhaltlichen Forstschritte. Hier ist die große Resonanz, die die Gründung des IMAF sowohl innerhalb als auch außerhalb der Universität gefunden hat, besonders erfreulich. Über 30 Angehörige des Zentrums sind inzwischen zu verzeichnen und es gibt bereits eine Reihe von wissenschaftlichen Projektinitiativen und Ideen für dieses Zentrum. Neben den wissenschaftlichen Arbeiten am IMAF ist ein zweites Hauptziel für dieses Zentrum die Entwicklung und der Ausbau eines strukturierten Ausbildungsangebotes für Musterdynamik und angewandte Fernerkundung. Dies sollen gleichermaßen Masterstudenten als auch Doktoranden der Universität Potsdam und der mit ihr assoziierten außeruniversitären Institute nutzen. Zudem werden Kurse und Weiterbildungsveranstaltungen mit nationalen und internationalen Experten angestrebt. Neben diesen positiven Entwicklungen gibt es auch (noch ??) über einige Mängel zu berichten:
Das Sekretariat ist nach wie vor unbesetzt, die Finanzausstattung des Zentrums ist völlig ungenügend und die im Konzept für das Zentrum beantragte Wissenschaftlerstelle für Softwareanwendung ist nicht in Sicht. Für einen Erfolg des Zentrums ist es unbedingt notwendig, dass sich diese Situation deutlich verbessert!!
Forschungsschwerpunkte des IMAF
Räumliche Muster und deren Struktur in der Umwelt
Räumliche Muster sind in vielen naturwissenschaftlichen Disziplinen (Hydrologie, Ökologie, Geologie, Biologie, Chemie, Physik) von zentraler Bedeutung. Z.B. bestimmen die räumlichen (und zeitlichen) Muster von Bodeneigenschaften und Vegetation in ihrem Zusammenspiel mit den Mustern von Niederschlag und Strahlungsinput maßgeblich den Wasser- und Stoffhaushalt auf unterschiedlichsten Skalen und führen über Rückkopplung wiederum zu Veränderungen in Klima, Vegetation und Ökosystemen. Vom kleinräumigen Transport von Schadstoffen und von der Hochwasserentstehung bis zur Frage nach den regionalen und globalen Veränderungen von Klima, Vegetation und Landnutzung seien hier nur einige Problemkreise genannt, in denen Muster und Musterdynamik eine zentrale Stellung einnehmen. Darüber hinaus liefert die Betrachtung der zeitlichen Veränderung von räumlichen Mustern, in Ergänzung zur klassischen Erfassung dynamischer Prozesse in Form von Messungen lokaler zeitlicher Änderungen, eine völlig neue Perspektive auf Dynamik und eröffnet damit völlig neue wissenschaftliche Möglichkeiten. Aktuelle und sehr drängende Fragen innerhalb dieses Forschungsschwerpunktes sind unter anderem:
• Analyse der generelle Raumstruktur von Geodaten (Variabilität, Struktur, Konnektivität);
• Thematische Verbindungen verschiedener Datenebenen und Möglichkeiten für deren Assimilation;
• Möglichkeiten und Grenzen des Skalenübergangs zwischen verschiedenen räumlichen Auflösungen und Informationsquellen;
• Ableitung der zeitlichen Dynamik bzw. Entwicklung von großen flächenhaften Datenfeldern.
Angewandte Fernerkundung
Wie keine andere Technik bietet die Fernerkundung in jeglicher Form (unter anderem Satelliten, flugzeuggetragene Sensoren, Wetterradar und auch geophysikalische Methoden) umfangreiche Möglichkeiten, räumliche Muster und deren zeitliche Veränderungen zu erfassen. Allen Methoden der Fernerkundung gemein ist, dass sie nur indirekte Ergebnisse liefern. Das heißt, es besteht nur ein mittelbarer Zusammenhang zwischen dem beobachteten Signal, meist der Reflektivität oder Emissivität elektromagnetischer Strahlung in verschiedenen Spektralbereichen (optisch oder Radar), und der eigentlich interessierenden Größe, wie dem Feuchtezustand der Vegetation, der Bodenfeuchte oder Bodenrauhigkeit, der Niederschlagsintensität, dem Zustand der Schneedecke oder der Ausdehnung eines Oberflächenfilms auf Gewässern. Ein Satellitenbild enthält beispielsweise immer die spektrale Signatur des räumlichen Musters mehrerer der oben genannten Einflussgrößen, was die Extraktion oder Diskriminierung der eigentlich interessierenden Größe erschwert. Dieser „vermischte“ Charakter der Fernerkundungsdaten bietet aber auch immense Chancen. So lassen sich durch geeignete Interpretationsverfahren aus jedem mit hohem finanziellem und technischem Aufwand erstellten Satellitenbild zahlreiche und im Detail völlig unterschiedliche Fragestellungen bearbeiten. Die Extraktion der gewünschten Information aus dem Fernerkundungssignal führt mathematisch gesehen meist auf die Lösung so genannter inverser, schlecht gestellter Probleme. Somit beinhaltet die interdisziplinäre Nutzung von Fernerkundung auch ein hohes methodisches Synergiepotential. Durch die heutigen technischen Möglichkeiten zur Archivierung auch sehr umfangreicher raumbezogener Informationen ist die Bearbeitung zu jedem beliebigen Zeitpunkt nach der Aufnahme möglich – zum Beispiel bis entsprechend lange Zeitreihen und/oder geeignete Interpretationsverfahren zur Verfügung stehen. Tatsächlich dürfte der weitaus größte Teil der raumbezogenen Informationen, die in den bisher erhobenen Fernerkundungsdaten stecken, nur in Ansätzen ausgewertet sein. Einer bereits sehr hoch entwickelten technischen Dimension der Fernerkundung steht ein gewisses Defizit im Umfang ihrer Anwendung in den verschiedenen naturwissenschaftlichen Disziplinen gegenüber. Aktuelle und sehr drängende Fragen innerhalb dieses Forschungsschwerpunktes sind unter anderem:
• Nutzung der räumlichen und inhaltlichen Breite von Fernerkundungsinformationen;
• Verbindung mit automatisierten, u.a. geophysikalischen Methoden des „ground-truthings“;
• Identifizierung der Grenzen bzgl. Repräsentanz der Daten (spektral, raum-zeitliche Auflösung);
• Verbindung unterschiedlicher Methoden der Fernerkundung und der Geophysik.
Dieser Beitrag illustriert die o.g. Fragestellungen anhand einiger Darstellungen aus verschiedenen wissenschaftlichen Disziplinen und erläutert 2 Beispiele zu beabsichtigten Forschungsprojekten:
• Erfassung und Bedeutung von Boden-Oberflächeneigenschaften auf die Abflussbildung von Landschaften;
• Phänomene des Stofftransportes in homogenen vs. heterogenen Böden.
Because software development is increasingly expensive and timeconsuming, software reuse gains importance. Aspect-oriented software development modularizes crosscutting concerns which enables their systematic reuse. Literature provides a number of AOP patterns and best practices for developing reusable aspects based on compelling examples for concerns like tracing, transactions and persistence. However, such best practices are lacking for systematically reusing invasive aspects. In this paper, we present the ‘callback mismatch problem’. This problem arises in the context of abstraction mismatch, in which the aspect is required to issue a callback to the base application. As a consequence, the composition of invasive aspects is cumbersome to implement, difficult to maintain and impossible to reuse. We motivate this problem in a real-world example, show that it persists in the current state-of-the-art, and outline the need for advanced aspectual composition mechanisms to deal with this.
We introduce and discuss a number of issues that arise in the process of building a finite-state morphological analyzer for Urdu, in particular issues with potential ambiguity and non-concatenative morphology. Our approach allows for an underlyingly similar treatment of both Urdu and Hindi via a cascade of finite-state transducers that transliterates the very different scripts into a common ASCII transcription system. As this transliteration system is based on the XFST tools that the Urdu/Hindi common morphological analyzer is also implemented in, no compatibility problems arise.
Enterprise Resource Planning (ERP) systems are critical to the success of enterprises, facilitating business operations through standardized digital processes. However, existing ERP systems are unsuitable for startups and small and medium-sized enterprises that grow quickly and require adaptable solutions with low barriers to entry. Drawing upon 15 explorative interviews with industry experts, we examine the challenges of current ERP systems using the task technology fit theory across companies of varying sizes. We describe high entry barriers, high costs of implementing implicit processes, and insufficient interoperability of already employed tools. We present a vision of a future business process platform based on three enablers: Business processes as first-class entities, semantic data and processes, and cloud-native elasticity and high availability. We discuss how these enablers address current ERP systems' challenges and how they may be used for research on the next generation of business software for tomorrow's enterprises.
In this paper we consider a simple syntactic extension of Answer Set Programming (ASP) for dealing with (nested) existential quantifiers and double negation in the rule bodies, in a close way to the recent proposal RASPL-1. The semantics for this extension just resorts to Equilibrium Logic (or, equivalently, to the General Theory of Stable Models), which provides a logic-programming interpretation for any arbitrary theory in the syntax of Predicate Calculus. We present a translation of this syntactic class into standard logic programs with variables (either disjunctive or normal, depending on the input rule heads), as those allowed by current ASP solvers. The translation relies on the introduction of auxiliary predicates and the main result shows that it preserves strong equivalence modulo the original signature.
The paper aims to bring the experience of playing videogames closer to objective knowledge, where the experience can be assessed and falsified via an operational concept. The theory focuses on explaining the basic elements that form the core of the process of the experience. The name of puppetry is introduced after discussing the similarities in the importance of experience for both videogames and theatrical puppetry. Puppetry, then, operationalizes the gaming experience into a concept that can be assessed.
We summarize Chandra observations of the emission line profiles from 17 OB stars. The lines tend to be broad and unshifted. The forbidden/intercombination line ratios arising from Helium-like ions provide radial distance information for the X-ray emission sources, while the H-like to He-like line ratios provide X-ray temperatures, and thus also source temperature versus radius distributions. OB stars usually show power law differential emission measure distributions versus temperature. In models of bow shocks, we find a power law differential emission measure, a wide range of ion stages, and the bow shock flow around the clumps provides transverse velocities comparable to HWHM values. We find that the bow shock results for the line profile properties, consistent with the observations of X-ray line emission for a broad range of OB star properties.
We study the time variability of emission lines in three WNE stars : WR 2 (WN2), WR 3 (WN3ha) and WR152 (WN3). While WR 2 shows no variability above the noise level, the other stars do show variation, which are like other WR stars in WR 152 but very fast in WR 3. From these motions, we deduce a value of β ∼1 for WR 3 that is like that seen in O stars and β ∼2–3 for WR 152, that is intermediate between other WR stars and WR 3.
Artificial intelligence (AI)-based technologies can increasingly perform knowledge work tasks, such as medical diagnosis. Thereby, it is expected that humans will not be replaced by AI but work closely with AI-based technology (“augmentation”). Augmentation has ethical implications for humans (e.g., impact on autonomy, opportunities to flourish through work), thus, developers and managers of AI-based technology have a responsibility to anticipate and mitigate risks to human workers. However, doing so can be difficult as AI encompasses a wide range of technologies, some of which enable fundamentally new forms of interaction. In this research-in-progress paper, we propose the development of a taxonomy to categorize unique characteristics of AI-based technology that influence the interaction and have ethical implications for human workers. The completed taxonomy will support researchers in forming cumulative knowledge on the ethical implications of augmentation and assist practitioners in the ethical design and management of AI-based technology in knowledge work.
By quantitatively fitting simple emission line profile models that include both atomic opacity and porosity to the Chandra X-ray spectrum of ζ Pup, we are able to explore the trade-offs between reduced mass-loss rates and wind porosity. We find that reducing the mass-loss rate of ζ Pup by roughly a factor of four, to 1.5 × 10−6 M⊙ yr−1, enables simple non-porous wind models to provide good fits to the data. If, on the other hand, we take the literature mass-loss rate of 6×10−6 M⊙ yr−1, then to produce X-ray line profiles that fit the data, extreme porosity lengths – of h∞ ≈ 3 R∗ – are required. Moreover, these porous models do not provide better fits to the data than the non-porous, low optical depth models. Additionally, such huge porosity lengths do not seem realistic in light of 2-D numerical simulations of the wind instability.
KEYCIT 2014
(2015)
In our rapidly changing world it is increasingly important not only to be an expert in a chosen field of study but also to be able to respond to developments, master new approaches to solving problems, and fulfil changing requirements in the modern world and in the job market. In response to these needs key competencies in understanding, developing and using new digital technologies are being brought into focus in school and university programmes. The IFIP TC3 conference "KEYCIT – Key Competences in Informatics and ICT (KEYCIT 2014)" was held at the University of Potsdam in Germany from July 1st to 4th, 2014 and addressed the combination of key competencies, Informatics and ICT in detail. The conference was organized into strands focusing on secondary education, university education and teacher education (organized by IFIP WGs 3.1 and 3.3) and provided a forum to present and to discuss research, case studies, positions, and national perspectives in this field.
We present an algorithm that computes a function that assigns consecutive integers to trees recognized by a deterministic, acyclic, finite-state, bottom-up tree automaton. Such function is called minimal perfect hashing. It can be used to identify trees recognized by the automaton. Its value may be seen as an index in some other data structures. We also present an algorithm for inverted hashing.
Many hot stars exhibit stochastic polarimetric variability, thought to arise from clumping low in the wind. Here we investigate the wind properties required to reproduce this variability using analytic models, with particular emphasis on Luminous Blue Variables. We find that the winds must be highly structured, consisting of a large number of optically-thin clumps; while we find that the overall level of polarization should scale with mass-loss rate – consistent with observations of LBVs. The models also predict variability on very short timescales, which is supported by the results of a recent polarimetric monitoring campaign.
We present the latest results on the observational dependence of the mass-loss rate in stellar winds of O and early-B stars on the metal content of their atmospheres, and compare these with predictions. Absolute empirical rates for the mass loss of stars brighter than 10$^{5.2} L_{\odot}$, based on H$\alpha$ and ultraviolet (UV) wind lines, are found to be about a factor of two higher than predictions. If this difference is attributed to inhomogeneities in the wind this would imply that luminous O and early-B stars have clumping factors in their H$\alpha$ and UV line forming regime of about a factor of 3--5. The investigated stars cover a metallicity range $Z$ from 0.2 to 1 $Z_{\odot}$. We find a hint towards smaller clumping factors for lower $Z$. The derived clumping factors, however, presuppose that clumping does not impact the predictions of the mass-loss rate. We discuss this assumption and explain how we intend to investigate its validity in more detail.
A key problem in automatic annotation of historical corpora is inconsistent spelling. Because the spelling of some word forms can differ between texts, a language model trained on already annotated treebanks may fail to recognize known word forms due to differences in spelling. In the present work, we explore the feasibility of an unsupervised method for spelling-adjustment for the purpose of improved part of speech (POS) tagging. To this end, we present a method for spelling normalization based on weighted edit distances, which exploits within-text spelling variation. We then evaluate the improvement in taging accuracy resulting from between-texts spelling normalization in two tagging experiments on several Early New High German (ENHG) texts.
Die 7. Fachtagung für Hochschuldidaktik, die 2016 erneut mit der DeLFI E-Learning Fachtagung Informatik stattfand, setzte das erfolgreiche Modell einer Tagung fort, die sich mit hochschuldidaktischen Fragen und der Gestaltung von Studiengängen der Informatik beschäftigt.
Thema der Tagung waren alle Fragen, die sich der Vermittlung von Informatikgegenständen im Hochschulbereich widmen. Dazu gehörten u.a.:
• fachdidaktische Konzepte der Vermittlung einzelner Informatikgegenstände
• methodische Lösungen, wie spezielle Lehr- und Lernformen, Durchführungskonzepte
• empirische Ergebnisse und Vergleichsstudien
• E-Learning-Ansätze, wenn sie ein erkennbares didaktisches Konzept verfolgen
• Studienkonzepte und Curricula, organisatorische Fragen, wie Gewinnung von Studierenden, Studieneingangsphase, Abbrecher.
Die Fachtagung widmete sich ausgewählten Fragestellungen dieses Themenkomplexes, die durch Vorträge ausgewiesener Experten, durch eingereichte Beiträge und durch Präsentationen und Poster intensiv behandelt wurden.
Unser besonderer Dank gilt dem Programmkomitee und den hier nicht genannten Helfern für ihren Einsatz bei der Vorbereitung und Durchführung der Tagung.
Physiological and genomic variation among cryptic species of a marsh snail (Melampus bidentatus)
(2021)
Die Fachtagungen HDI (Hochschuldidaktik Informatik) beschäftigen sich mit den unterschiedlichen Aspekten informatischer Bildung im Hochschulbereich. Neben den allgemeinen Themen wie verschiedenen Lehr- und Lernformen, dem Einsatz von Informatiksystemen in der Hochschullehre oder Fragen der Gewinnung von geeigneten Studierenden, deren Kompetenzerwerb oder auch der Betreuung der Studierenden widmet sich die HDI immer auch einem Schwerpunktthema.
Im Jahr 2021 war dies die Berücksichtigung von Diversität in der Lehre. Diskutiert wurden beispielsweise die Einbeziehung von besonderen fachlichen und überfachlichen Kompetenzen Studierender, der Unterstützung von Durchlässigkeit aus nichtakademischen Berufen, aber auch die Gestaltung inklusiver Lehr- und Lernszenarios, Aspekte des Lebenslangen Lernens oder sich an die Diversität von Studierenden adaptierte oder adaptierende Lehrsysteme.
Dieser Band enthält ausgewählte Beiträge der 9. Fachtagung 2021, die in besonderer Weise die Konferenz und die dort diskutierten Themen repräsentieren.
Received views of utterance context in pragmatic theory characterize the occurrent subjective states of interlocutors using notions like common knowledge or mutual belief. We argue that these views are not compatible with the uncertainty and robustness of context-dependence in humanhuman dialogue. We present an alternative characterization of utterance context as objective and normative. This view reconciles the need for uncertainty with received intuitions about coordination and meaning in context, and can directly inform computational approaches to dialogue.
During the outbreak of the COVID-19 pandemic, many people shared their symptoms across Online Social Networks (OSNs) like Twitter, hoping for others’ advice or moral support. Prior studies have shown that those who disclose health-related information across OSNs often tend to regret it and delete their publications afterwards. Hence, deleted posts containing sensitive data can be seen as manifestations of online regrets. In this work, we present an analysis of deleted content on Twitter during the outbreak of the COVID-19 pandemic. For this, we collected more than 3.67 million tweets describing COVID-19 symptoms (e.g., fever, cough, and fatigue) posted between January and April 2020. We observed that around 24% of the tweets containing personal pronouns were deleted either by their authors or by the platform after one year.
As a practical application of the resulting dataset, we explored its suitability for the automatic classification of regrettable content on Twitter.
This paper describes the key aspects of the system SynCoP (Syntactic Constraint Parser) developed at the Berlin-Brandenburgische Akademie der Wissenschaften. The parser allows to combine syntactic tagging and chunking by means of constraint grammar using weighted finite state transducers (WFST). Chunks are interpreted as local dependency structures within syntactic tagging. The linguistic theories are formulated by criteria which are formalized by a semiring; these criteria allow structural preferences and gradual grammaticality. The parser is essentially a cascade of WFSTs. To find the most likely syntactic readings a best-path search is used.
A new method is used in an eye-tracking pilot experiment which shows that it is possible to detect differences in common ground associated with the use of minimally different types of indefinite anaphora. Following Richardson and Dale (2005), cross recurrence quantification analysis (CRQA) was used to show that the tandem eye movements of two Swedish-speaking interlocutors are slightly more coupled when they are using fully anaphoric indefinite expressions than when they are using less anaphoric indefinites. This shows the potential of CRQA to detect even subtle processing differences in ongoing discourse.
Interdisziplinäres Zentrum für Musterdynamik und Angewandte Fernerkundung Workshop vom 9. - 10. Februar 2006
In ihrem Bemühen, landwirtschaftliche Flächen standortgerecht zu bewirtschaften, sammelt eine zunehmende Anzahl landwirtschaftlicher Betriebe Informationen über die räumlich-zeitliche Verteilung von Boden- und Pflanzenmerkmalen auf ihren Schlägen. Diese Informationen dienen unmittelbar (Echtzeitansatz) oder mittelbar (Kartenansatz) zur Dosierung von Dünge- und Pflanzenschutzmitteln (Präzise Landbewirtschaftung). Zur Datensammlung werden vorrangig fahrzeuggestützte Sensoren und VIS- und NIR-Luftbilder, aufgenommen aus Sportflugzeugen, verwendet. Erste Betriebe erwerben von Dienstleistungsunternehmen aufbereitete Satelliten-Fernerkundungsdaten. Die landwirtschaftliche und agrartechnische Forschung ist bestrebt, die grundlegenden Muster (z.B. des Ertragspotentials) zu erkennen und damit den Aufwand der Betriebe für eine regelmäßige Informationserfassung gering zu halten. <hr> Interdisziplinäres Zentrum für Musterdynamik und Angewandte Fernerkundung Workshop vom 9. - 10. Februar 2006