Institut für Informatik und Computational Science
Refine
Year of publication
Document Type
- Article (576) (remove)
Is part of the Bibliography
- yes (576) (remove)
Keywords
- Answer set programming (10)
- answer set programming (8)
- Answer Set Programming (6)
- Machine learning (3)
- formal languages (3)
- monitoring (3)
- Analytical models (2)
- Automata systems (2)
- Digitale Medien (2)
- E-Learning (2)
- E-learning (2)
- Equilibrium logic (2)
- Event mapping (2)
- Fault tolerance (2)
- IT-Infrastruktur (2)
- Lindenmayer systems (2)
- Non-monotonic reasoning (2)
- Parameterized complexity (2)
- Process mining (2)
- ResNet (2)
- Theory (2)
- bioinformatics (2)
- cooperating systems (2)
- e-learning (2)
- knowledge representation and nonmonotonic reasoning (2)
- online learning (2)
- radhard design (2)
- security (2)
- (FPGA) (1)
- (SET) count rate (1)
- 2-tag system (1)
- 3D modeling (1)
- 3D visualization (1)
- AODV (1)
- ASIC (1)
- Absorbed dose (1)
- Abstraction (1)
- Access control (1)
- Active evaluation (1)
- Ad hoc routing (1)
- Adaptivity (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)
- Argumentation structure (1)
- Assessment (1)
- Augmentation (1)
- Augmented and virtual reality (1)
- Autismus (1)
- Automated parallelization (1)
- Automatically controlled windows (1)
- Backdoors (1)
- Batch processing (1)
- Bean (1)
- Benchmark testing; (1)
- Berliner Modell (1)
- Blind users (1)
- Boolean logic models (1)
- Business process intelligence (1)
- CP-Logic (1)
- Campus (1)
- Circuit faults (1)
- Clock tree (1)
- Cloud (1)
- Cluster Computing (1)
- Cluster computing (1)
- Code generation (1)
- Coherent phonons (1)
- Combinatorial multi-objective optimization (1)
- Complex optimization (1)
- Complexity (1)
- Computational complexity (1)
- Computational grid (1)
- Computer security (1)
- Computergestützes Training (1)
- Computing with DNA (1)
- Conformant Planning (1)
- Conrad Hal Waddington (1)
- Constraint satisfaction (1)
- Context awareness (1)
- Contextualized learning (1)
- Continuous Testing (1)
- Continuous Versioning (1)
- Convolution (1)
- Course timetabling (1)
- Customer ownership (1)
- D-galactosamine (1)
- DMR (1)
- DNA hairpin formation (1)
- DRMAA (1)
- DRMS (1)
- Data federation (1)
- Database (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 Game Based Learning (1)
- Digital image analysis (1)
- Digitalisierung (1)
- Digitalization (1)
- Dose rate (1)
- Double cell upsets (DCUs) (1)
- Dynamical X-ray theory (1)
- E-Assessment (1)
- E-Klausuren (1)
- E-Portfolio (1)
- E-teaching (1)
- EDC (1)
- EEG (1)
- Educational game (1)
- Educational timetabling (1)
- Elektronisches Prüfen (1)
- Encoding (1)
- Engines (1)
- Entity Linking (1)
- Epigenetic landscape (1)
- Epistemic Logic Programs (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)
- Fault Localization (1)
- Fault tolerant systems (1)
- Feature extraction (1)
- Field programmable gate arrays (1)
- Finite automata (1)
- Flip-flops (1)
- Forgetting (1)
- Forschungsdatenmanagement (1)
- Freshmen (1)
- GERBIL (1)
- Gesture input (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)
- 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)
- Informatikstudium (1)
- Information federation (1)
- Information integration (1)
- Information retrieval (1)
- Information security (1)
- Innovation (1)
- Insurance industry (1)
- Integrated circuit modeling (1)
- Interface design (1)
- Internet of Things (1)
- Job monitoring (1)
- Job submission (1)
- Kernel (1)
- Kernelization (1)
- Key input (1)
- Knowledge representation (1)
- L systems (1)
- LBA problem (1)
- Landmark visibility (1)
- Literature mining (1)
- Liver neoplasms (1)
- Load Balancing (1)
- Localization (1)
- Location awareness (1)
- Logic programming (1)
- Loss (1)
- Low Latency (1)
- Loyalty (1)
- MQTT (1)
- Machine Learning (1)
- Markov processes (1)
- Masking of X-values (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)
- N-temperature model (1)
- NUI (1)
- Nash equilibrium (1)
- Natural language processing (1)
- Natural ventilation (1)
- Network (1)
- Network security (1)
- Neural networks (1)
- Non-Monotonic (1)
- Nonmonotonic reasoning (1)
- OCCI (1)
- OSSE (1)
- Operation problem (1)
- Optimization (1)
- Parallel SAT solving (1)
- Parallel job execution time estimation (1)
- Particle detector (1)
- Partizipation (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)
- Planar tactile display (1)
- Plant identification (1)
- Polarization (1)
- Preference Handling (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)
- Region of Interest (1)
- Reproducibility of results (1)
- Reversibility (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)
- 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)
- Splicing (1)
- Splicing processor (1)
- Statistical relational learning (1)
- Stochastic relational process (1)
- Strategie (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)
- 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)
- 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)
- Wireless Sensor Networks (1)
- Word embeddings (1)
- X-masking (1)
- X-ray computed (1)
- X-values (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)
- 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)
- block representation (1)
- bootstrapping (1)
- brain-computer interface (1)
- bundled data (1)
- camera sensor (1)
- car assembly operations (1)
- cellular automata (1)
- circuit Faults (1)
- citation analysis (1)
- click controller (1)
- clocks (1)
- co-citation analysis (1)
- co-occurrence analysis (1)
- code generation (1)
- coherence relation (1)
- collaborative learning (1)
- combinatorial optimization problems (1)
- combined task and motion planning (1)
- common spatial patterns (1)
- competition (1)
- compliance (1)
- computational thinking (1)
- computer science education (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)
- 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)
- digitally-enabled pedagogies (1)
- domain-specific APIs (1)
- drug discovery (1)
- drug-sensitivity prediction (1)
- dynamic service binding (1)
- eLectures (1)
- economic ripples (1)
- edge computing (1)
- educational systems (1)
- educational timetabling (1)
- embedded systems (1)
- emission factor (1)
- endothelin (1)
- endothelin-converting enzyme (1)
- ensemble kalman filter (1)
- ensemble methods (1)
- error propagation (1)
- evaluation (1)
- event-related desynchronization (1)
- evolution (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)
- functions (1)
- gap-filling (1)
- geovisualization (1)
- gradient boosting (1)
- grammar (1)
- greenhouse gas (1)
- hardware accelerator (1)
- hardware architecture (1)
- higher education (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)
- information flow control (1)
- internal ambiguity (1)
- intrusion detection (1)
- irradiation (1)
- key competences in physical computing (1)
- kidney cancer (1)
- knowledge representation and reasoning (1)
- latches (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)
- metabolic network (1)
- metabolism (1)
- metabolomics (1)
- metadata (1)
- metastasis (1)
- mobile learning (1)
- mobile technologies and apps (1)
- natural disasters (1)
- natural language generation (1)
- neighborhood (1)
- neural networks (1)
- neutral endopeptidase (1)
- nonphotorealistic rendering (NPR) (1)
- o-ambiguity (1)
- on-farm evaluation (1)
- organisational evolution (1)
- pMOS radiation dosimeter (1)
- paper prototyping (1)
- parallel processing (1)
- parallel rewriting (1)
- parity aggregate operator (1)
- parsing (1)
- pdf forms (1)
- perception (1)
- perception differences (1)
- physical computing (1)
- physical computing tools (1)
- planning (1)
- plug-ins (1)
- policy evaluation (1)
- portfolio-based solving (1)
- predictive models (1)
- premise acceptability (1)
- process model alignment (1)
- process modeling (1)
- program encodings (1)
- programmed grammars (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)
- relevance (1)
- reliability (1)
- reliability analysis (1)
- resources (1)
- restricted parallelism (1)
- satisfiability (1)
- selective fault tolerance (1)
- self-adaptive multiprocessing system (1)
- self-checking (1)
- semantic web (1)
- sensitivity (1)
- simplicity (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)
- soft errors (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)
- sufficiency (1)
- suicidal ideations (1)
- supply chains (1)
- support system (1)
- support vector machines (1)
- tableau calculi (1)
- teacher training (1)
- teaching (1)
- technical notes and rapid communications (1)
- tele-teaching (1)
- test response compaction (1)
- theory (1)
- theory of computation (1)
- timing (1)
- tools (1)
- transient Faults (1)
- transient analysis (1)
- triangulated irregular networks (1)
- triple modular redundancy (1)
- unfounded sets (1)
- user experience (1)
- verification (1)
- video annotation (1)
- virtual mobility (1)
- wheat crops (1)
- work productivity (1)
- xAPI (1)
- yellow rust (1)
Institute
- Institut für Informatik und Computational Science (576)
- Institut für Physik und Astronomie (2)
- eLiS - E-Learning in Studienbereichen (2)
- Department Erziehungswissenschaft (1)
- Department Linguistik (1)
- Extern (1)
- Historisches Institut (1)
- Universitätsbibliothek (1)
- Zentrum für Qualitätsentwicklung in Lehre und Studium (ZfQ) (1)
Eclingo
(2020)
We describe eclingo, a solver for epistemic logic programs under Gelfond 1991 semantics built upon the Answer Set Programming system clingo. The input language of eclingo uses the syntax extension capabilities of clingo to define subjective literals that, as usual in epistemic logic programs, allow for checking the truth of a regular literal in all or in some of the answer sets of a program. The eclingo solving process follows a guess and check strategy. It first generates potential truth values for subjective literals and, in a second step, it checks the obtained result with respect to the cautious and brave consequences of the program. This process is implemented using the multi-shot functionalities of clingo. We have also implemented some optimisations, aiming at reducing the search space and, therefore, increasing eclingo 's efficiency in some scenarios. Finally, we compare the efficiency of eclingo with two state-of-the-art solvers for epistemic logic programs on a pair of benchmark scenarios and show that eclingo generally outperforms their obtained results.
This paper continues the line of research aimed at investigating the relationship between logic programs and first-order theories. We extend the definition of program completion to programs with input and output in a subset of the input language of the ASP grounder gringo, study the relationship between stable models and completion in this context, and describe preliminary experiments with the use of two software tools, anthem and vampire, for verifying the correctness of programs with input and output. Proofs of theorems are based on a lemma that relates the semantics of programs studied in this paper to stable models of first-order formulas.
We study the concept of reversibility in connection with parallel communicating systems of finite automata (PCFA in short). We define the notion of reversibility in the case of PCFA (also covering the non-deterministic case) and discuss the relationship of the reversibility of the systems and the reversibility of its components. We show that a system can be reversible with non-reversible components, and the other way around, the reversibility of the components does not necessarily imply the reversibility of the system as a whole. We also investigate the computational power of deterministic centralized reversible PCFA. We show that these very simple types of PCFA (returning or non-returning) can recognize regular languages which cannot be accepted by reversible (deterministic) finite automata, and that they can even accept languages that are not context-free. We also separate the deterministic and non-deterministic variants in the case of systems with non-returning communication. We show that there are languages accepted by non-deterministic centralized PCFA, which cannot be recognized by any deterministic variant of the same type.
We introduce a new measure of descriptional complexity on finite automata, called the number of active states. Roughly speaking, the number of active states of an automaton A on input w counts the number of different states visited during the most economic computation of the automaton A for the word w. This concept generalizes to finite automata and regular languages in a straightforward way. We show that the number of active states of both finite automata and regular languages is computable, even with respect to nondeterministic finite automata. We further compare the number of active states to related measures for regular languages. In particular, we show incomparability to the radius of regular languages and that the difference between the number of active states and the total number of states needed in finite automata for a regular language can be of exponential order.
Image feature detection is a key task in computer vision. Scale Invariant Feature Transform (SIFT) is a prevalent and well known algorithm for robust feature detection. However, it is computationally demanding and software implementations are not applicable for real-time performance. In this paper, a versatile and pipelined hardware implementation is proposed, that is capable of computing keypoints and rotation invariant descriptors on-chip. All computations are performed in single precision floating-point format which makes it possible to implement the original algorithm with little alteration. Various rotation resolutions and filter kernel sizes are supported for images of any resolution up to ultra-high definition. For full high definition images, 84 fps can be processed. Ultra high definition images can be processed at 21 fps.
Large-scale literature mining to assess the relation between anti-cancer drugs and cancer types
(2021)
Background:
There is a huge body of scientific literature describing the relation between tumor types and anti-cancer drugs. The vast amount of scientific literature makes it impossible for researchers and physicians to extract all relevant information manually.
Methods:
In order to cope with the large amount of literature we applied an automated text mining approach to assess the relations between 30 most frequent cancer types and 270 anti-cancer drugs. We applied two different approaches, a classical text mining based on named entity recognition and an AI-based approach employing word embeddings. The consistency of literature mining results was validated with 3 independent methods: first, using data from FDA approvals, second, using experimentally measured IC-50 cell line data and third, using clinical patient survival data.
Results:
We demonstrated that the automated text mining was able to successfully assess the relation between cancer types and anti-cancer drugs. All validation methods showed a good correspondence between the results from literature mining and independent confirmatory approaches. The relation between most frequent cancer types and drugs employed for their treatment were visualized in a large heatmap. All results are accessible in an interactive web-based knowledge base using the following link: .
Conclusions:
Our approach is able to assess the relations between compounds and cancer types in an automated manner. Both, cancer types and compounds could be grouped into different clusters. Researchers can use the interactive knowledge base to inspect the presented results and follow their own research questions, for example the identification of novel indication areas for known drugs.
Student teachers often struggle to keep track of everything that is happening in the classroom, and particularly to notice and respond when students cause disruptions. The complexity of the classroom environment is a potential contributing factor that has not been empirically tested. In this experimental study, we utilized a virtual reality (VR) classroom to examine whether classroom complexity affects the likelihood of student teachers noticing disruptions and how they react after noticing. Classroom complexity was operationalized as the number of disruptions and the existence of overlapping disruptions (multidimensionality) as well as the existence of parallel teaching tasks (simultaneity). Results showed that student teachers (n = 50) were less likely to notice the scripted disruptions, and also less likely to respond to the disruptions in a comprehensive and effortful manner when facing greater complexity. These results may have implications for both teacher training and the design of VR for training or research purpose. This study contributes to the field from two aspects: 1) it revealed how features of the classroom environment can affect student teachers' noticing of and reaction to disruptions; and 2) it extends the functionality of the VR environment-from a teacher training tool to a testbed of fundamental classroom processes that are difficult to manipulate in real-life.
Background:
Pruritus often accompanies chronic skin diseases, exerting considerable burden on many areas of patient functioning; this burden and the features of pruritus remain insufficiently characterized.
Objective:
To investigate characteristics, including localization patterns, and burden of pruritus in patients with chronic dermatoses.
Methods:
We recruited 800 patients with active chronic skin diseases. We assessed pruritus intensity, localization, and further characteristics. We used validated questionnaires to assess quality of life, work productivity and activity impairment, anxiety, depression, and sleep quality.
Results:
Nine out of every 10 patients had experienced pruritus throughout their disease and 73% in the last 7 days. Pruritus often affected the entire body and was not restricted to skin lesions. Patients with moderate to severe pruritus reported significantly more impairment to their sleep quality and work productivity, and they were more depressed and anxious than control individuals and patients with mild or no pruritus. Suicidal ideations were highly prevalent in patients with chronic pruritus (18.5%) and atopic dermatitis (11.8%).
Conclusions:
Pruritus prevalence and intensity are very high across all dermatoses studied; intensity is linked to impairment in many areas of daily functioning. Effective treatment strategies are urgently required to treat pruritus and the underlying skin disease. ( J Am Acad Dermatol 2021;84:691-700.)
Tropical cyclones range among the costliest disasters on Earth. Their economic repercussions along the supply and trade network also affect remote economies that are not directly affected. We here simulate possible global repercussions on consumption for the example case of Hurricane Sandy in the US (2012) using the shock-propagation model Acclimate. The modeled shock yields a global three-phase ripple: an initial production demand reduction and associated consumption price decrease, followed by a supply shortage with increasing prices, and finally a recovery phase. Regions with strong trade relations to the US experience strong magnitudes of the ripple. A dominating demand reduction or supply shortage leads to overall consumption gains or losses of a region, respectively. While finding these repercussions in historic data is challenging due to strong volatility of economic interactions, numerical models like ours can help to identify them by approaching the problem from an exploratory angle, isolating the effect of interest. For this, our model simulates the economic interactions of over 7000 regional economic sectors, interlinked through about 1.8 million trade relations. Under global warming, the wave-like structures of the economic response to major hurricanes like the one simulated here are likely to intensify and potentially overlap with other weather extremes.
Due to climate change the frequency and character of precipitation are changing as the hydrological cycle intensifies. With regards to snowfall, global warming has two opposing influences; increasing humidity enables intense snowfall, whereas higher temperatures decrease the likelihood of snowfall. Here we show an intensification of extreme snowfall across large areas of the Northern Hemisphere under future warming. This is robust across an ensemble of global climate models when they are bias-corrected with observational data. While mean daily snowfall decreases, both the 99th and the 99.9th percentiles of daily snowfall increase in many regions in the next decades, especially for Northern America and Asia. Additionally, the average intensity of snowfall events exceeding these percentiles as experienced historically increases in many regions. This is likely to pose a challenge to municipalities in mid to high latitudes. Overall, extreme snowfall events are likely to become an increasingly important impact of climate change in the next decades, even if they will become rarer, but not necessarily less intense, in the second half of the century.