Institut für Informatik und Computational Science
Refine
Year of publication
- 2023 (2)
- 2022 (18)
- 2021 (16)
- 2020 (22)
- 2019 (10)
- 2018 (21)
- 2017 (4)
- 2016 (9)
- 2015 (63)
- 2014 (29)
- 2013 (37)
- 2012 (23)
- 2011 (27)
- 2010 (32)
- 2009 (26)
- 2008 (1)
- 2007 (24)
- 2006 (38)
- 2005 (29)
- 2004 (27)
- 2003 (18)
- 2002 (15)
- 2001 (20)
- 2000 (31)
- 1999 (29)
- 1998 (30)
- 1997 (22)
- 1996 (25)
- 1995 (15)
- 1994 (17)
- 1993 (1)
Document Type
- Article (682) (remove)
Keywords
- Didaktik (13)
- Ausbildung (12)
- Hochschuldidaktik (12)
- Informatik (12)
- Answer set programming (10)
- answer set programming (8)
- Answer Set Programming (6)
- Computer Science Education (4)
- E-Learning (4)
- Competence Measurement (3)
- Machine learning (3)
- Secondary Education (3)
- Theory (3)
- education (3)
- formal languages (3)
- monitoring (3)
- Analytical models (2)
- Automata systems (2)
- Big Data (2)
- Competence Modelling (2)
- Computational thinking (2)
- Digitale Medien (2)
- E-learning (2)
- Equilibrium logic (2)
- Event mapping (2)
- Fault tolerance (2)
- IT-Infrastruktur (2)
- Informatics Education (2)
- Informatics Modelling (2)
- Informatics System Application (2)
- Informatics System Comprehension (2)
- Lindenmayer systems (2)
- Non-monotonic reasoning (2)
- Parameterized complexity (2)
- Process mining (2)
- ResNet (2)
- Strategie (2)
- bioinformatics (2)
- computational thinking (2)
- computer science education (2)
- cooperating systems (2)
- e-learning (2)
- higher education (2)
- knowledge representation and nonmonotonic reasoning (2)
- online learning (2)
- radhard design (2)
- relevance (2)
- security (2)
- soft errors (2)
- tools (2)
- (FPGA) (1)
- (SET) count rate (1)
- 2-tag system (1)
- 21st century skills, (1)
- 3D modeling (1)
- 3D visualization (1)
- ABRACADABRA (1)
- AODV (1)
- ARCS Modell (1)
- ASIC (1)
- Absorbed dose (1)
- Abstraction (1)
- Access control (1)
- Achievement (1)
- Active evaluation (1)
- Activity Theory (1)
- Activity-orientated Learning (1)
- Ad hoc routing (1)
- Adaptivity (1)
- Adaptivität (1)
- Advanced Video Codec (AVC) (1)
- Aggregates (1)
- Algorithm configuration (1)
- Algorithm portfolios (1)
- Algorithms (1)
- Android hybrid apps (1)
- Animal building (1)
- Anti-cancer drugs (1)
- Arduino (1)
- Argumentation structure (1)
- Assessment (1)
- Audience Response Systeme (1)
- Augmentation (1)
- Augmented and virtual reality (1)
- Austria (1)
- Autismus (1)
- Automated Theorem Proving (1)
- Automated parallelization (1)
- Automatic Item Generation (1)
- Automatically controlled windows (1)
- Automatisches Beweisen (1)
- Backdoors (1)
- Batch processing (1)
- Bean (1)
- Benchmark testing; (1)
- Berliner Modell (1)
- Blended Learning (1)
- Blind users (1)
- Bloom’s Taxonomy (1)
- Boolean logic models (1)
- Business process intelligence (1)
- CP-Logic (1)
- CS concepts (1)
- Campus (1)
- Capability approach (1)
- Challenges (1)
- Circuit faults (1)
- Clause Learning (1)
- Clock tree (1)
- Cloud (1)
- Cluster Computing (1)
- Cluster computing (1)
- Code generation (1)
- Cognitive Skills (1)
- Coherent phonons (1)
- Combinatorial multi-objective optimization (1)
- Competences (1)
- Competencies (1)
- Complex optimization (1)
- Complexity (1)
- Computational Thinking (1)
- Computational complexity (1)
- Computational grid (1)
- Computer Science (1)
- Computer Science in Context (1)
- Computer security (1)
- Computergestützes Training (1)
- Computing (1)
- Computing with DNA (1)
- Conformant Planning (1)
- Conrad Hal Waddington (1)
- Constraint satisfaction (1)
- Contest (1)
- Context awareness (1)
- Contextualisation (1)
- Contextualized learning (1)
- Continuous Testing (1)
- Continuous Versioning (1)
- Contradictions (1)
- Convolution (1)
- Course timetabling (1)
- Curriculum (1)
- Curriculum Development (1)
- Customer ownership (1)
- D-galactosamine (1)
- DMR (1)
- DNA hairpin formation (1)
- DPLL (1)
- DRMAA (1)
- DRMS (1)
- Data Analysis (1)
- Data Management (1)
- Data Privacy (1)
- Data federation (1)
- Database (1)
- Databases (1)
- Deal of the Day (1)
- Debugging (1)
- Decidability (1)
- Declare (1)
- Deep learning (1)
- Defining characteristics of physical computing (1)
- Denotational semantics (1)
- Design (1)
- Design for testability (DFT) (1)
- Digital Competence (1)
- Digital Education (1)
- Digital Game Based Learning (1)
- Digital Revolution (1)
- Digital image analysis (1)
- Digitalisierung (1)
- Digitalization (1)
- Dose rate (1)
- Double cell upsets (DCUs) (1)
- Dynamic assessment (1)
- Dynamical X-ray theory (1)
- E-Assessment (1)
- E-Klausuren (1)
- E-Portfolio (1)
- E-teaching (1)
- EDC (1)
- EEG (1)
- Early Literacy (1)
- Educational Standards (1)
- Educational game (1)
- Educational software (1)
- Educational timetabling (1)
- Elektronisches Prüfen (1)
- Embedded Systems (1)
- Encoding (1)
- Engines (1)
- Entity Linking (1)
- Epigenetic landscape (1)
- Epistemic Logic Programs (1)
- Euclid’s algorithm (1)
- Evaluation (1)
- Evolution (1)
- Experimentation (1)
- Explicit negation (1)
- Explore-first Programming (1)
- Extensibility (1)
- Extreme Model-Driven Development (1)
- FEDC (1)
- FPGA (1)
- Facebook (1)
- Fault Localization (1)
- Fault tolerant systems (1)
- Feature extraction (1)
- Fibonacci numbers (1)
- Field programmable gate arrays (1)
- Finite automata (1)
- Flip-flops (1)
- Forgetting (1)
- Forschungsdatenmanagement (1)
- Freshmen (1)
- Function (1)
- Fundamental Ideas (1)
- GERBIL (1)
- Gesture input (1)
- Graphensuche (1)
- Green computing (1)
- Grounded theory (1)
- H.264 (1)
- Hairpin completions (1)
- Hairpin reductions (1)
- Hardware accelerator (1)
- Heat diffusion (1)
- Hierarchically configurable mask register (1)
- Histograms (1)
- Hochschul-Cloud (1)
- Hochschullehre (1)
- Https traffic (1)
- Human Factors (1)
- Hurricane Sandy (1)
- ICT Competence (1)
- ICT competencies (1)
- ICT skills (1)
- IaaS (1)
- Identifiers (1)
- Image and video stylization (1)
- Image resolution (1)
- Imperative calculi (1)
- Improving classroom (1)
- Incoherent phonons (1)
- Incremental answer set programming (1)
- Inference (1)
- Informatics (1)
- Informatikstudium (1)
- Information federation (1)
- Information integration (1)
- Information retrieval (1)
- Information security (1)
- Innovation (1)
- Inquiry-based Learning (1)
- Insurance industry (1)
- Integrated circuit modeling (1)
- Interaktivität (1)
- Interface design (1)
- Internet of Things (1)
- Job monitoring (1)
- Job submission (1)
- Kernel (1)
- Kernelization (1)
- Key Competencies (1)
- Key input (1)
- Klausellernen (1)
- Knowledge representation (1)
- Kompetenzerwerb (1)
- L systems (1)
- LBA problem (1)
- LMS (1)
- Landmark visibility (1)
- Learners (1)
- Learning Fields (1)
- Learning ecology (1)
- Learning interfaces development (1)
- Learning with ICT (1)
- Lehrer*innenbildung (1)
- Lern-App (1)
- Lernaufgaben (1)
- Lernmotivation (1)
- Literature mining (1)
- Liver neoplasms (1)
- Load Balancing (1)
- Localization (1)
- Location awareness (1)
- Logarithm (1)
- Logic programming (1)
- Loss (1)
- Low Latency (1)
- Lower Secondary Level (1)
- Loyalty (1)
- MOOCs (1)
- MQTT (1)
- Machine Learning (1)
- Markov processes (1)
- Masking of X-values (1)
- Massive Open Online Courses (1)
- Measurement (1)
- Media in education (1)
- Meta-Programming (1)
- Metric learning (1)
- Minimal perturbation problems (1)
- Mobile App (1)
- Mobile application (1)
- Mobile devices (1)
- Mobile learning (1)
- Model checking (1)
- Modeling (1)
- Modelling (1)
- Multi-objective optimization (1)
- Multi-sided platforms (1)
- Multiple interpretation scheme (1)
- Music Technology (1)
- N-temperature model (1)
- NUI (1)
- Nash equilibrium (1)
- Natural Science Education (1)
- Natural language processing (1)
- Natural ventilation (1)
- Network (1)
- Network security (1)
- Neural networks (1)
- NoSQL (1)
- Non-Monotonic (1)
- Nonmonotonic reasoning (1)
- Norway (1)
- Novice programmers (1)
- OCCI (1)
- OSSE (1)
- OpenOLAT (1)
- Operation problem (1)
- Optimization (1)
- Parallel SAT solving (1)
- Parallel job execution time estimation (1)
- Particle detector (1)
- Partizipation (1)
- Pedagogical content knowledge (1)
- Pedagogical issues (1)
- Pedestrian navigation (1)
- Performance Evaluation (1)
- Personalization (1)
- Persönliche Lernumgebung (1)
- Pervasive computing (1)
- Pervasive game (1)
- Pervasive learning (1)
- Phantoms (1)
- Physical Science (1)
- Planar tactile display (1)
- Plant identification (1)
- Polarization (1)
- Preference Handling (1)
- Preprocessing (1)
- Problem Solving (1)
- Process model analysis (1)
- Product lifecycle management (1)
- Programming (1)
- Programming by optimization (1)
- Prototyping (1)
- RADFET (1)
- RADFETs (1)
- REST (1)
- RSA triangle (1)
- Radiation hardness (1)
- Random access memory (1)
- Ranking (1)
- Reasoning (1)
- Recommendations for CS-Curricula in Higher Education (1)
- Region of Interest (1)
- Relevanz (1)
- Reproducibility of results (1)
- Reversibility (1)
- SAT (1)
- SET pulsewidth distribution (1)
- SOA (1)
- SWOT (1)
- SaaSAbstract (1)
- Scalability (1)
- Scale-invariant feature transform (SIFT) (1)
- Scientific images (1)
- Screen reader (1)
- Seamless learning (1)
- Search problems (1)
- Security (1)
- Self-adaptive MPSoC (1)
- Semantic data (1)
- Semantic web (1)
- Semilinearity property (1)
- Sensors (1)
- Sequence embeddings (1)
- Service orientation (1)
- Sharing (1)
- Signal processing (1)
- Signaling transduction networks (1)
- Simulations (1)
- Single event effect (1)
- Single event upsets (1)
- Single-event transient (SET) (1)
- Small Private Online Courses (1)
- Social (1)
- Splicing (1)
- Splicing processor (1)
- Statistical relational learning (1)
- Stochastic relational process (1)
- Strong equivalence (1)
- Structural equation modeling (1)
- Studentenjobs (1)
- Studienabbrecher (1)
- Studiendauer (1)
- Systems biology (1)
- Systems of parallel communicating (1)
- TMR (1)
- TPACK (1)
- Tasks (1)
- Teacher perceptions (1)
- Teachers (1)
- Teaching information security (1)
- Technology proficiency (1)
- Terminology (1)
- Tests (1)
- Theorembeweisen (1)
- Theory formation (1)
- Thermoelasticity (1)
- Time series (1)
- Tomography (1)
- Tools (1)
- Tracking (1)
- Traffic data (1)
- Tree decomposition (1)
- Treewidth (1)
- Treewidth-aware reductions (1)
- Triple modular redundancy (TMR) (1)
- Tumor types (1)
- Turing machine (1)
- Type and effect systems (1)
- UAV imagery (1)
- UX (1)
- Ubiquitous learning (1)
- Ultrafast dynamics (1)
- Unary languages (1)
- Unifikation (1)
- Uniform Access Principle (1)
- Usability testing (1)
- User Experience (1)
- User submission pattern (1)
- User-centred design (1)
- VGG16 (1)
- Value network (1)
- Verification (1)
- Visual metaphor (1)
- Vocational Education (1)
- Weiterbildung (1)
- Wireless Sensor Networks (1)
- Word embeddings (1)
- X-masking (1)
- X-ray computed (1)
- X-values (1)
- Young People (1)
- abstraction (1)
- accepting grammars (1)
- action and change (1)
- activity (1)
- acute liver failure (1)
- acyclicity properties (1)
- adversarial classification (1)
- algorithm schedules (1)
- algorithms (1)
- analogical thinking (1)
- analysis (1)
- annealing (1)
- anti-cancer drugs (1)
- anxiety (1)
- approximate model counting (1)
- architecture (1)
- argument mining (1)
- arousal (1)
- artistic rendering (1)
- asynchrounous design (1)
- autism (1)
- automata (1)
- automated guided vehicle routing (1)
- automated planning (1)
- automatic feedback (1)
- behavioral abstraction (1)
- belief merging (1)
- belief revision (1)
- benchmark (1)
- bibliometric analysis (1)
- binary representation (1)
- binary search (1)
- block representation (1)
- bootstrapping (1)
- brain-computer interface (1)
- bulk built-in current sensor (1)
- bundled data (1)
- camera sensor (1)
- car assembly operations (1)
- cellular automata (1)
- circuit Faults (1)
- citation analysis (1)
- classroom language (1)
- click controller (1)
- clocks (1)
- co-citation analysis (1)
- co-occurrence analysis (1)
- code generation (1)
- cognitive modifiability (1)
- coherence relation (1)
- collaborative learning (1)
- combinatorial optimization problems (1)
- combined task and motion planning (1)
- common spatial patterns (1)
- competence (1)
- competencies (1)
- competency (1)
- competition (1)
- complexity (1)
- compliance (1)
- comprehension (1)
- computer science teachers (1)
- computer vision (1)
- concession (1)
- concurrent checking (1)
- conductive argument (1)
- connective (1)
- consistency (1)
- consistency checking (1)
- consistency measures (1)
- context-free grammar (1)
- context-sensitive (1)
- contrast (1)
- controlled vocabularies (1)
- corpus analysis (1)
- correlated errors (1)
- course timetabling (1)
- craters (1)
- crop (1)
- cs4fn (1)
- curriculum theory (1)
- decidability questions (1)
- declarative problem solving (1)
- deep learning (1)
- deep neural networks (1)
- deep residual networks (1)
- degree of non-context-freeness (1)
- degree of non-regularity (1)
- degree of non-regulation (1)
- depression (1)
- design flow (1)
- determinism (1)
- detrending (1)
- developmental systems (1)
- diagnosis (1)
- didactics (1)
- didaktisches Konzept (1)
- digitale Bildung (1)
- digitale Medien (1)
- digitally-enabled pedagogies (1)
- divide and conquer (1)
- domain-specific APIs (1)
- drug discovery (1)
- drug-sensitivity prediction (1)
- dynamic service binding (1)
- e-mentoring (1)
- eLectures (1)
- economic ripples (1)
- edge computing (1)
- education and public policy (1)
- educational programming (1)
- educational systems (1)
- educational timetabling (1)
- edutainment (1)
- embedded systems (1)
- emission factor (1)
- endothelin (1)
- endothelin-converting enzyme (1)
- ensemble kalman filter (1)
- ensemble methods (1)
- environments (1)
- error propagation (1)
- evaluation (1)
- event-related desynchronization (1)
- evolution (1)
- exponentiation (1)
- external ambiguity (1)
- extreme weather (1)
- face tracking (1)
- facial expression (1)
- fading (1)
- fault tolerance (1)
- field-programmable gate array (1)
- finite model computation (1)
- finite state sequential transducers (1)
- firmware update (1)
- formal (1)
- formal argumentation systems (1)
- fun (1)
- functions (1)
- gap-filling (1)
- geovisualization (1)
- governance (1)
- gradient boosting (1)
- grammar (1)
- graph-search (1)
- greenhouse gas (1)
- hardware accelerator (1)
- hardware architecture (1)
- high school (1)
- higher (1)
- hybrid solving (1)
- ice harboring (1)
- image classification (1)
- image processing (1)
- image recognition (1)
- imaging (1)
- impacts (1)
- incremental SVM (1)
- informal and formal learning (1)
- informal logic (1)
- informatics (1)
- informatics education (1)
- information and communication technologies (1)
- information flow control (1)
- innovation (1)
- interactive course (1)
- interactive workshop (1)
- internal ambiguity (1)
- intrusion detection (1)
- irradiation (1)
- key competences in physical computing (1)
- key competencies (1)
- kidney cancer (1)
- kinaesthetic teaching (1)
- klinisch-praktischer Unterricht (1)
- knowledge representation and reasoning (1)
- latches (1)
- learning (1)
- leftmost derivations (1)
- lesson planning (1)
- lesson preparation (1)
- linear programming (1)
- logic programming (1)
- logic programming methodology and applications (1)
- logic-based modeling (1)
- loop formulas (1)
- loose programming (1)
- loss propagation (1)
- lunar exploration (1)
- machine learning (1)
- machine learning algorithms (1)
- manipulation planning (1)
- measure development (1)
- media (1)
- mediated learning experience (1)
- metabolic network (1)
- metabolism (1)
- metabolomics (1)
- metadata (1)
- metastasis (1)
- mobile learning (1)
- mobile technologies and apps (1)
- mobiles Lernen (1)
- natural disasters (1)
- natural language generation (1)
- neighborhood (1)
- networks (1)
- neural networks (1)
- neutral endopeptidase (1)
- nonphotorealistic rendering (NPR) (1)
- o-ambiguity (1)
- on-farm evaluation (1)
- open learning (1)
- operating system (1)
- organisational evolution (1)
- pMOS radiation dosimeter (1)
- paper prototyping (1)
- parallel processing (1)
- parallel rewriting (1)
- parameter (1)
- parity aggregate operator (1)
- parsing (1)
- pdf forms (1)
- pedagogy (1)
- perception (1)
- perception differences (1)
- personal (1)
- personal response systems (1)
- philosophical foundation of informatics pedagogy (1)
- physical computing (1)
- physical computing tools (1)
- planning (1)
- platform (1)
- plug-ins (1)
- policy evaluation (1)
- policy making (1)
- portfolio-based solving (1)
- pre-primary level (1)
- predictive models (1)
- premise acceptability (1)
- preprocessing (1)
- primary education (1)
- primary level (1)
- problem-solving (1)
- process model alignment (1)
- process modeling (1)
- professional development (1)
- program encodings (1)
- programmed grammars (1)
- programming (1)
- programming in context (1)
- projection (1)
- proof complexity (1)
- pruritus (1)
- pulse stretching inverters (1)
- quality of life (1)
- quantum (1)
- random forest (1)
- real arguments (1)
- real-time (1)
- real-time mapping (1)
- reference (1)
- referential effectiveness (1)
- regression (1)
- regular language (1)
- regulation (1)
- reliability (1)
- reliability analysis (1)
- resources (1)
- restricted parallelism (1)
- satisfiability (1)
- secondary computer science education (1)
- secondary education (1)
- selective fault tolerance (1)
- self-adaptive multiprocessing system (1)
- self-checking (1)
- self-efficacy (1)
- semantic web (1)
- sensitivity (1)
- simplicity (1)
- single event transients (1)
- single event upset (1)
- single event upsets (1)
- single-event transient (1)
- single-trial-analysis (1)
- site-specific weed management (1)
- sleep quality (1)
- smart farming (1)
- social media (1)
- solar particle event (1)
- space missions (1)
- stable model semantics (1)
- state complexity (1)
- static analysis (1)
- static prediction games (1)
- strong equivalence (1)
- student activation (1)
- student experience (1)
- student perceptions (1)
- students’ conceptions (1)
- students’ knowledge (1)
- sufficiency (1)
- suicidal ideations (1)
- supply chains (1)
- support system (1)
- support vector machines (1)
- tableau calculi (1)
- teacher competencies (1)
- teacher training (1)
- teaching (1)
- teaching informatics in general education (1)
- technical notes and rapid communications (1)
- technische Rahmenbedingungen (1)
- tele-teaching (1)
- test response compaction (1)
- theorem (1)
- theory (1)
- theory of computation (1)
- timing (1)
- tracing (1)
- transient Faults (1)
- transient analysis (1)
- triangulated irregular networks (1)
- triple modular redundancy (1)
- unfounded sets (1)
- unification (1)
- user experience (1)
- user-centred (1)
- verification (1)
- video annotation (1)
- virtual mobility (1)
- virtual reality (1)
- wheat crops (1)
- work productivity (1)
- xAPI (1)
- yellow rust (1)
- ‘unplugged’ computing (1)
Institute
- Institut für Informatik und Computational Science (682)
- Institut für Physik und Astronomie (2)
- eLiS - E-Learning in Studienbereichen (2)
- Department Erziehungswissenschaft (1)
- Department Linguistik (1)
- Extern (1)
- Fachgruppe Betriebswirtschaftslehre (1)
- Historisches Institut (1)
- Universitätsbibliothek (1)
- Zentrum für Qualitätsentwicklung in Lehre und Studium (ZfQ) (1)
Der Unterricht großer Studierendengruppen im wissenschaftlichen Schreiben birgt vielfältige organisatorische Herausforderungen und eine zeitintensive Betreuung durch die Dozenten. Diese Arbeit stellt ein Lehrkonzept mit Peer-Reviews vor, in dem das Feedback der Peers durch eine automatisierte Analyse ergänzt wird. Die Software Confopy liefert metrik- und strukturbasierte Hinweise für die Verbesserung des wissenschaftlichen Schreibstils. Der Nutzen von Confopy wird an 47 studentischen Arbeiten in Draft- und Final-Version illustriert.
Im Rahmen eines interdisziplinären studentischen Projekts wurde ein Framework für mobile pervasive Lernspiele entwickelt. Am Beispiel des historischen Lernortes Park Sanssouci wurde auf dieser Grundlage ein Lernspiel für Schülerinnen und Schüler implementiert. Die geplante Evaluation soll die Lernwirksamkeit von geobasierten mobilen Lernspielen messen. Dazu wird die Intensität des Flow-Erlebens mit einer ortsgebundenen alternativen Umsetzung verglichen.
Current curricular trends require teachers in Baden-
Wuerttemberg (Germany) to integrate Computer Science (CS) into
traditional subjects, such as Physical Science. However, concrete guidelines
are missing. To fill this gap, we outline an approach where a
microcontroller is used to perform and evaluate measurements in the
Physical Science classroom.
Using the open-source Arduino platform, we expect students to acquire
and develop both CS and Physical Science competencies by using a
self-programmed microcontroller. In addition to this combined development
of competencies in Physical Science and CS, the subject matter
will be embedded in suitable contexts and learning environments,
such as weather and climate.
We propose two methods that reduce the post-nonlinear blind source separation problem (PNL-BSS) to a linear BSS problem. The first method is based on the concept of maximal correlation: we apply the alternating conditional expectation (ACE) algorithm-a powerful technique from nonparametric statistics-to approximately invert the componentwise nonlinear functions. The second method is a Gaussianizing transformation, which is motivated by the fact that linearly mixed signals before nonlinear transformation are approximately Gaussian distributed. This heuristic, but simple and efficient procedure works as good as the ACE method. Using the framework provided by ACE, convergence can be proven. The optimal transformations obtained by ACE coincide with the sought-after inverse functions of the nonlinearitics. After equalizing the nonlinearities, temporal decorrelation separation (TDSEP) allows us to recover the source signals. Numerical simulations testing "ACE-TD" and "Gauss-TD" on realistic examples are performed with excellent results
Students beginning their studies at university face manifold problems such as orientation in a new environment and organizing their courses. This article presents the implementation and successful empirical evaluation of the pervasive browser-based educational game "FreshUP", which aims at helping to overcome the initial difficulties of freshmen. In contrast to a conventional scavenger hunt, mobile pervasive games like FreshUP, bridging in-game and real world activities, have the potential to provide help in a motivating manner using new technology which is currently becoming more and more common. (C) 2013 Elsevier B.V. All rights reserved.
Independent component analysis of noninvasively recorded cortical magnetic DC-fields in humans
(2000)
With the success of wireless technologies in consumer electronics, standard wireless technologies are envisioned for the deployment in industrial environments as well. Industrial applications involving mobile subsystems or just the desire to save cabling make wireless technologies attractive. Nevertheless, these applications often have stringent requirements on reliability and timing. In wired environments, timing and reliability are well catered for by fieldbus systems (which are a mature technology designed to enable communication between digital controllers and the sensors and actuators interfacing to a physical process). When wireless links are included, reliability and timing requirements are significantly more difficult to meet, due to the adverse properties of the radio channels. In this paper we thus discuss some key issues coming up in wireless fieldbus and wireless industrial communication systems:1)fundamental problems like achieving timely and reliable transmission despite channel errors; 2) the usage of existing wireless technologies for this specific field of applications; and 3) the creation of hybrid systems in which wireless stations are included into existing wired systems
Die Arbeitswelt im Fokus
(2015)
Für Bachelor-Studierende der Wirtschaftsinformatik im zweiten Semester an der Fachhochschule Kiel werden im Modul Informationsmanagement neben klassischen didaktischen Ansätzen in einer seminaristischen Unterrichtsform so genannte „Aktivbausteine“ eingesetzt: Studierende erhalten zum einen die Gelegenheit, sich im Kontakt mit Fach- und Führungskräften aus der Industrie ein konkretes Bild vom Beruf der Wirtschaftsinformatikerin bzw. des Wirtschaftsinformatikers zu machen; zum anderen erarbeiten sie innovative Ansätze der Prozessverbesserung aus Sicht der IT oder mit Nutzenpotenzial für die IT und präsentieren ihre Ergebnisse öffentlich im Rahmen des Kieler Prozessmanagementforums. Diese Aktivbausteine dienen insbesondere der Berufsfeldorientierung: Durch die Informationen, die die Studierenden über die Anforderungen und Tätigkeiten von im Beruf stehenden Menschen erhalten, werden sie in die Lage versetzt, fundierte Entscheidungen bzgl. ihrer Studiengestaltung und Berufswahl zu treffen. Im Beitrag wird die Konzeption der Bausteine vorgestellt und deren Grad der Zielerreichung durch aktuelle Evaluationsergebnisse erläutert. Zudem wird die motivationale Wirkung der Aktivbausteine anhand der Theorie der Selbstbestimmung von Deci und Ryan [DR1985, DR1993, DR2004] erläutert.
In object-oriented programming, polymorphic dispatch of operations decouples clients from specific providers of services and allows implementations to be modified or substituted without affecting clients.
The Uniform Access Principle (UAP) tries to extend these qualities to resource access by demanding that access to state be indistinguishable from access to operations. Despite language features supporting the UAP, the overall goal of substitutability has not been achieved for either alternative resources such as keyed storage, files or web pages, or for alternate access mechanisms: specific kinds of resources are bound to specific access mechanisms and vice versa. Changing storage or access patterns either requires changes to both clients and service providers and trying to maintain the UAP imposes significant penalties in terms of code-duplication and/or performance overhead.
We propose introducing first class identifiers as polymorphic names for storage locations to solve these problems. With these Polymorphic Identifiers, we show that we can provide uniform access to a wide variety of resource types as well as storage and access mechanisms, whether parametrized or direct, without affecting client code, without causing code duplication or significant performance penalties.
How Things Work
(2015)
Recognizing and defining functionality is a key competence
adopted in all kinds of programming projects. This study investigates
how far students without specific informatics training are able to identify
and verbalize functions and parameters. It presents observations
from classroom activities on functional modeling in high school chemistry
lessons with altogether 154 students. Finally it discusses the potential
of functional modelling to improve the comprehension of scientific
content.
Engineering of process-driven business applications can be supported by process modeling efforts in order to bridge the gap between business requirements and system specifications. However, diverging purposes of business process modeling initiatives have led to significant problems in aligning related models at different abstract levels and different perspectives. Checking the consistency of such corresponding models is a major challenge for process modeling theory and practice. In this paper, we take the inappropriateness of existing strict notions of behavioral equivalence as a starting point. Our contribution is a concept called behavioral profile that captures the essential behavioral constraints of a process model. We show that these profiles can be computed efficiently, i.e., in cubic time for sound free-choice Petri nets w.r.t. their number of places and transitions. We use behavioral profiles for the definition of a formal notion of consistency which is less sensitive to model projections than common criteria of behavioral equivalence and allows for quantifying deviation in a metric way. The derivation of behavioral profiles and the calculation of a degree of consistency have been implemented to demonstrate the applicability of our approach. We also report the findings from checking consistency between partially overlapping models of the SAP reference model.
Diese Arbeit enthält eine umfassende Analyse, wie der Kompetenzerwerb in einem einsemestrigen Softwarepraktikum vonstatten geht. Dabei steht neben der Frage, welche Kompetenzen besonders gut erworben wurden, der Einfluss von Vorwissen/-kompetenz im Mittelpunkt der Abhandlung. Auf dieser Basis werden einige grundlegende und konkrete Verbesserungsvorschläge erarbeitet, wie der breite Kompetenzerwerb begünstigt wird, d.h. möglichst viele Studierende sich in einem breiten Kompetenzspektrum weiterentwickeln.
ProtoSense
(2015)
This paper originated from discussions about the need for
important changes in the curriculum for Computing including two focus
group meetings at IFIP conferences over the last two years. The
paper examines how recent developments in curriculum, together with
insights from curriculum thinking in other subject areas, especially mathematics
and science, can inform curriculum design for Computing.
The analysis presented in the paper provides insights into the complexity
of curriculum design as well as identifying important constraints and
considerations for the ongoing development of a vision and framework
for a Computing curriculum.
Formalizing informal logic
(2015)
In this paper we investigate the extent to which formal argumentation models can handle ten basic characteristics of informal logic identified in the informal logic literature. By showing how almost all of these characteristics can be successfully modelled formally, we claim that good progress can be made toward the project of formalizing informal logic. Of the formal argumentation models available, we chose the Carneades Argumentation System (CAS), a formal, computational model of argument that uses argument graphs as its basis, structures of a kind very familiar to practitioners of informal logic through their use of argument diagrams.
In recent years, named entity linking (NEL) tools were primarily developed in terms of a general approach, whereas today numerous tools are focusing on specific domains such as e.g. the mapping of persons and organizations only, or the annotation of locations or events in microposts. However, the available benchmark datasets necessary for the evaluation of NEL tools do not reflect this focalizing trend. We have analyzed the evaluation process applied in the NEL benchmarking framework GERBIL [in: Proceedings of the 24th International Conference on World Wide Web (WWW’15), International World Wide Web Conferences Steering Committee, Republic and Canton of Geneva, Switzerland, 2015, pp. 1133–1143, Semantic Web 9(5) (2018), 605–625] and all its benchmark datasets. Based on these insights we have extended the GERBIL framework to enable a more fine grained evaluation and in depth analysis of the available benchmark datasets with respect to different emphases. This paper presents the implementation of an adaptive filter for arbitrary entities and customized benchmark creation as well as the automated determination of typical NEL benchmark dataset properties, such as the extent of content-related ambiguity and diversity. These properties are integrated on different levels, which also enables to tailor customized new datasets out of the existing ones by remixing documents based on desired emphases. Besides a new system library to enrich provided NIF [in: International Semantic Web Conference (ISWC’13), Lecture Notes in Computer Science, Vol. 8219, Springer, Berlin, Heidelberg, 2013, pp. 98–113] datasets with statistical information, best practices for dataset remixing are presented, and an in depth analysis of the performance of entity linking systems on special focus datasets is presented.
Berufsbegleitende Studiengänge stehen vor besonderen Schwierigkeiten, für die der Einsatz von Blended Learning-Szenarien sinnvoll sein kann. Welche speziellen Herausforderungen sich dabei ergeben und welche Lösungsansätze dagegen steuern, betrachtet der folgende Artikel anhand eines Praxisberichts aus dem Studiengang M. P. A. Wissenschaftsmanagement an der Universität Speyer.
Ziel einer neuen Studieneingangsphase ist, den Studierenden bis zum Ende des ersten Semesters ein vielfältiges Berufsbild der Informatik und Wirtschaftsinformatik mit dem breiten Aufgabenspektrum aufzublättern und damit die Zusammenhänge zwischen den einzelnen Modulen des Curriculums zu verdeutlichen. Die Studierenden sollen in die Lage versetzt werden, sehr eigenständig die Planung und Gestaltung ihres Studiums in die Hand zu nehmen.
Exploratory Data Analysis
(2014)
In bioinformatics the term exploratory data analysis refers to different methods to get an overview of large biological data sets. Hence, it helps to create a framework for further analysis and hypothesis testing. The workflow facilitates this first important step of the data analysis created by high-throughput technologies. The results are different plots showing the structure of the measurements. The goal of the workflow is the automatization of the exploratory data analysis, but also the flexibility should be guaranteed. The basic tool is the free software R.
Boolean networks provide a simple yet powerful qualitative modeling approach in systems biology. However, manual identification of logic rules underlying the system being studied is in most cases out of reach. Therefore, automated inference of Boolean logical networks from experimental data is a fundamental question in this field. This paper addresses the problem consisting of learning from a prior knowledge network describing causal interactions and phosphorylation activities at a pseudo-steady state, Boolean logic models of immediate-early response in signaling transduction networks. The underlying optimization problem has been so far addressed through mathematical programming approaches and the use of dedicated genetic algorithms. In a recent work we have shown severe limitations of stochastic approaches in this domain and proposed to use Answer Set Programming (ASP), considering a simpler problem setting. Herein, we extend our previous work in order to consider more realistic biological conditions including numerical datasets, the presence of feedback-loops in the prior knowledge network and the necessity of multi-objective optimization. In order to cope with such extensions, we propose several discretization schemes and elaborate upon our previous ASP encoding. Towards real-world biological data, we evaluate the performance of our approach over in silico numerical datasets based on a real and large-scale prior knowledge network. The correctness of our encoding and discretization schemes are dealt with in Appendices A-B. (C) 2014 Elsevier B.V. All rights reserved.
The concept of Linked Data has made its entrance in the cultural heritage sector due to its potential use for the integration of heterogeneous collections and deriving additional value out of existing metadata. However, practitioners and researchers alike need a better understanding of what outcome they can reasonably expect of the reconciliation process between their local metadata and established controlled vocabularies which are already a part of the Linked Data cloud. This paper offers an in-depth analysis of how a locally developed vocabulary can be successfully reconciled with the Library of Congress Subject Headings (LCSH) and the Arts and Architecture Thesaurus (AAT) through the help of a general-purpose tool for interactive data transformation (OpenRefine). Issues negatively affecting the reconciliation process are identified and solutions are proposed in order to derive maximum value from existing metadata and controlled vocabularies in an automated manner.
Computational analysis of virtual team collaboration in teh early stages of engineering design
(2010)
Das Training sozioemotionaler Kompetenzen ist gerade für Menschen mit Autismus nützlich. Ein solches Training kann mithilfe einer spielbasierten Anwendung effektiv gestaltet werden. Zwei Minispiele, Mimikry und Emo-Mahjong, wurden realisiert und hinsichtlich User Experience evaluiert. Die jeweiligen Konzepte und die Evaluationsergebnisse sollen hier vorgestellt werden.
The submission and management of computational jobs is a traditional part of utility computing environments. End users and developers of domain-specific software abstractions often have to deal with the heterogeneity of such batch processing systems. This lead to a number of application programming interface and job description standards in the past, which are implemented and established for cluster and Grid systems. With the recent rise of cloud computing as new utility computing paradigm, the standardized access to batch processing facilities operated on cloud resources becomes an important issue. Furthermore, the design of such a standard has to consider a tradeoff between feature completeness and the achievable level of interoperability. The article discusses this general challenge, and presents some existing standards with traditional cluster and Grid computing background that may be applicable to cloud environments. We present OCCI-DRMAA as one approach for standardized access to batch processing facilities hosted in a cloud.
Answer set planning
(2022)
Answer Set Planning refers to the use of Answer Set Programming (ASP) to compute plans, that is, solutions to planning problems, that transform a given state of the world to another state. The development of efficient and scalable answer set solvers has provided a significant boost to the development of ASP-based planning systems. This paper surveys the progress made during the last two and a half decades in the area of answer set planning, from its foundations to its use in challenging planning domains. The survey explores the advantages and disadvantages of answer set planning. It also discusses typical applications of answer set planning and presents a set of challenges for future research.
Many Android applications embed webpages via WebView components and execute JavaScript code within Android. Hybrid applications leverage dedicated APIs to load a resource and render it in a WebView. Furthermore, Android objects can be shared with the JavaScript world. However, bridging the interfaces of the Android and JavaScript world might also incur severe security threats: Potentially untrusted webpages and their JavaScript might interfere with the Android environment and its access to native features.
No general analysis is currently available to assess the implications of such hybrid apps bridging the two worlds. To understand the semantics and effects of hybrid apps, we perform a large-scale study on the usage of the hybridization APIs in the wild. We analyze and categorize the parameters to hybridization APIs for 7,500 randomly selected and the 196 most popular applications from the Google Playstore as well as 1000 malware samples. Our results advance the general understanding of hybrid applications, as well as implications for potential program analyses, and the current security situation: We discovered thousands of flows of sensitive data from Android to JavaScript, the vast majority of which could flow to potentially untrustworthy code. Our analysis identified numerous web pages embedding vulnerabilities, which we exemplarily exploited. Additionally, we discovered a multitude of applications in which potentially untrusted JavaScript code may interfere with (trusted) Android objects, both in benign and malign applications.
One of the goals of artificial intelligence is to develop agents that learn and act in complex environments. Realistic environments typically feature a variable number of objects, relations amongst them, and non-deterministic transition behavior. While standard probabilistic sequence models provide efficient inference and learning techniques for sequential data, they typically cannot fully capture the relational complexity. On the other hand, statistical relational learning techniques are often too inefficient to cope with complex sequential data. In this paper, we introduce a simple model that occupies an intermediate position in this expressiveness/efficiency trade-off. It is based on CP-logic (Causal Probabilistic Logic), an expressive probabilistic logic for modeling causality. However, by specializing CP-logic to represent a probability distribution over sequences of relational state descriptions and employing a Markov assumption, inference and learning become more tractable and effective. Specifically, we show how to solve part of the inference and learning problems directly at the first-order level, while transforming the remaining part into the problem of computing all satisfying assignments for a Boolean formula in a binary decision diagram. We experimentally validate that the resulting technique is able to handle probabilistic relational domains with a substantial number of objects and relations.
Geocoder accuracy ranking
(2014)
Finding an address on a map is sometimes tricky: the chosen map application may be unfamiliar with the enclosed region. There are several geocoders on the market, they have different databases and algorithms to compute the query. Consequently, the geocoding results differ in their quality. Fortunately the geocoders provide a rich set of metadata. The workflow described in this paper compares this metadata with the aim to find out which geocoder is offering the best-fitting coordinate for a given address.