Refine
Year of publication
Document Type
- Part of Periodical (38)
- Doctoral Thesis (35)
- Diploma Thesis (24)
- Study Thesis (19)
- Master's Thesis (16)
- Bachelor Thesis (14)
- Report (1)
Keywords
- Routing (5)
- Bluetooth (4)
- Knowledge Compilation (4)
- Netzwerk (4)
- Semantic Web (4)
- Software Engineering (4)
- VNUML (4)
- E-KRHyper (3)
- Netzwerksimulation (3)
- RIP-MTI (3)
- XTPeer (3)
- Campus Information System (2)
- Drahtloses Sensorsystem (2)
- Equality (2)
- Information Retrieval (2)
- Konvergenz (2)
- Modellgetriebene Entwicklung (2)
- Network (2)
- Ontology (2)
- Petri-Netze (2)
- Prädikatenlogik (2)
- RIP (2)
- Rechnernetz (2)
- Theorem Proving (2)
- UML (2)
- University (2)
- constraint logic programming (2)
- hybrid automata (2)
- probability propagation nets (2)
- API (1)
- API analysis (1)
- API-Analyse (1)
- AUTOSAR (1)
- Abduktion <Logik> (1)
- Ad-hoc-Netz (1)
- Adaptation (1)
- Administration (1)
- Algorithm Engineering (1)
- Algorithmische Geometrie (1)
- Anpassung (1)
- Architektur <Informatik> (1)
- Auditing (1)
- Augmented Reality (1)
- Aussagenlogik (1)
- Authentisierung (1)
- Automated Theorem Proving (1)
- Automated Theorem Proving Systems (1)
- Automatisches Beweisverfahren (1)
- Automotive Systems (1)
- Backtrack (1)
- Bayes Procedures (1)
- Beaconless (1)
- Befahrbarkeit (1)
- Betriebssystem (1)
- Border Gateway Protocol (1)
- Border Gateway Protocol 4 (1)
- C-Socketbibliothek (1)
- CMS (1)
- CSCA (1)
- CTI (1)
- CTI -Problem (1)
- Calculus (1)
- Cheops (1)
- Cicero (1)
- Circumscription (1)
- Cisco Catalyst 3500XL (1)
- Communication Networks (1)
- Computational logic (1)
- Computer Security (1)
- Computer Supported Cooperative Work (1)
- Computersicherheit (1)
- Computersimulation (1)
- Conference (1)
- Connected Vehicles (1)
- Context-aware processes (1)
- Controlling (1)
- Counting-to-Infinity (1)
- DHCPv6 (1)
- DNNF (1)
- DPLL (1)
- DPLL procedure (1)
- Data Mining (1)
- Datenschutz (1)
- Deduktion (1)
- Description Logics (1)
- Destiny (1)
- Developer profiling (1)
- DiaLex (1)
- Dialekt (1)
- Dijkstras Algorithmus (1)
- Dimension 3 (1)
- Diskrete Simulation (1)
- Distanz-Vektor (1)
- Distributed Algorithm (1)
- Distributed Environments (1)
- Distributed process execution (1)
- Dokumentation (1)
- Drahtloses vermachtes Netz (1)
- Driver Assistance Systems (1)
- E-Participation (1)
- Ebener Graph (1)
- Echtzeit-Interaktion (1)
- Echtzeitsysteme (1)
- Empirical Studies (1)
- Emulation (1)
- Enhanced Reality (1)
- Enterprise Architecture Framework (1)
- Entscheidungsprozess (1)
- Entwickler Profil (1)
- Fahrerassistenzsysteme (1)
- Fahrzeug (1)
- Fließgewässer (1)
- Flowing Inland Waters (1)
- Formal Methods (1)
- Formale Methoden (1)
- Formale Ontologie (1)
- Fragebeantwortung (1)
- GPS (1)
- GReTL (1)
- Gelände (1)
- Geographic routing (1)
- Geometric spanner (1)
- Graph (1)
- Grounded Theory (1)
- HNF-Algorithmus (1)
- Hermite-Normalform (1)
- Heuristiken (1)
- Hindernis (1)
- Horn Clauses (1)
- Human-Computer Interaction (1)
- Hyper Tableau Calculus (1)
- IASON (1)
- IPv6 (1)
- IT Guru (1)
- IT-Security (1)
- Information (1)
- Information Centric Networking (1)
- Information Visualization (1)
- Informationsverlinkung (1)
- Informationsvisualisierung (1)
- InstaHub (1)
- Intelligent Information Network (1)
- Interactive Video Retrieval (1)
- Interactive Visualizations (1)
- Interaktive Visualisierungen (1)
- Interior Gateway Protokoll (1)
- JGraLab (1)
- JML (1)
- Java (1)
- Java Modeling Language (1)
- Java. Programmiersprache (1)
- KRHyper (1)
- Klassifikation (1)
- Klausellogik (1)
- Knowledge (1)
- Knowledge Engineering (1)
- Komplexität / Algorithmus (1)
- Laser (1)
- Linking of Information (1)
- Linux (1)
- Local algorithm (1)
- Logischer Schluss (1)
- Lookup-Algorithmen (1)
- MIA (1)
- MPEG-7 (1)
- MSR (1)
- Mail-Filter (1)
- Mehrprozessorsystem (1)
- Mensch-Maschine-Interaktion (1)
- Metamodel (1)
- Meteor (1)
- Metriken (1)
- Mikrocontroller (1)
- Mining (1)
- Mining Software Repositories (1)
- Mobile Information Systems (1)
- Mobiltelefon (1)
- Modelltransformation (1)
- Monitoring (1)
- Multi-Agenten-Simulation (1)
- Multi-robot System (1)
- Multiagent System (1)
- Multiagentensysteme (1)
- Nachbarschaftsgraph (1)
- Nagios (1)
- Named Function Networking (1)
- Network Monitoring (1)
- Network Simulation (1)
- Netzwerk Protokollen (1)
- Netzwerkanalyse (1)
- Netzwerkchip (1)
- Netzwerkmanagment (1)
- Netzwerktopologie (1)
- Netzwerküberwachung (1)
- Neuronales Netz (1)
- Nutzerzufriedenheit (1)
- OPNET (1)
- OWL <Informatik> (1)
- Ontologie <Wissensverarbeitung> (1)
- OpenWrt (1)
- Oracle Generation (1)
- Oraklegenerierung (1)
- Orientierungsstufe (1)
- PDA (1)
- Personal Key Infrastruktur (1)
- Personalised Information Systems (1)
- Petri Nets (1)
- Petri net (1)
- Petrinetz (1)
- Placement Strategies (1)
- Planar graphs (1)
- Policy Language (1)
- Proactive Caching (1)
- Probability (1)
- Probability propagation nets (1)
- Process (1)
- Process tracing (1)
- Projekt iCity (1)
- Propagation (1)
- Propositional Logic (1)
- Protocol (1)
- Prototyp (1)
- Prototype (1)
- Provenance (1)
- Quasi unit disk graph (1)
- Query Expansion (1)
- RDF Graphs (1)
- RDF modeling (1)
- RIP-MTI Algorithmus (1)
- RMTI (1)
- Reactive algorithm (1)
- Rechnernetze (1)
- Reference Model (1)
- Relationale Datenbank (1)
- Relevance Feedback (1)
- Requirement-Engineering (1)
- Resource Description Framework (RDF) (1)
- Robocup 2008 (1)
- Roboter (1)
- Router (1)
- Routing Information Protocol (1)
- Routing Information Protocol (RIP) (1)
- Routing Loops (1)
- Routing information protocol (1)
- Routing with Metric based Topology Investigation (RMTI) (1)
- Routing- und Forwarding Tabellen (1)
- Routing-Loop (1)
- SAC (1)
- SNMP (1)
- SOA (1)
- SPARQL (1)
- STP (1)
- Schleifenerkennung (1)
- Schlussfolgern (1)
- Security Requirements (1)
- Semantic Web Data (1)
- Semantics (1)
- Semantisches Wiki (1)
- Sentiment Analysis, ChatGPT, Students sentiments (1)
- Serdar Ayalp (1)
- Serviceorientierte Architektur (1)
- Software Language (1)
- Software Repositories (1)
- Software Technology (1)
- Softwarearchitektur (1)
- Softwaretest (1)
- Softwaretesting (1)
- Soziale Netzwerke (1)
- Spam-Mail (1)
- Spannender Baum (1)
- Spanning Tree (1)
- Specification (1)
- Spezifikation (1)
- Statistische Analyse (1)
- Stochastic Logic (1)
- Straßenzustand (1)
- Suat Algin (1)
- TAP (1)
- TGraph (1)
- TRECVID (1)
- Tableau <Logik> (1)
- Tableau Calculus (1)
- Technologischer Raum (1)
- Technology Acceptance Model (1)
- Temperaturmessung (1)
- Test Generation (1)
- Testgenerierung (1)
- Theorem prover (1)
- Theorembeweiser (1)
- Tokens (1)
- Transaction concept (1)
- Transaktion (1)
- Transaktionskonzept (1)
- Ultraschall (1)
- Unified Modeling Language (UML ) (1)
- Unit disk graph (1)
- VDE (1)
- VDE-Switch (1)
- VLAN (1)
- VTP (1)
- Vegetation distribution (1)
- Verifikation (1)
- Verortung (1)
- Verteilter Algorithmus (1)
- Virtual Square (1)
- Virtual network user mode Linux (1)
- Virtualisation (1)
- Virtualisierung (1)
- Visualisierung (1)
- Wahrscheinlichkeitsrechnung (1)
- Wasseroberfläche (1)
- Water Surface Temperature (1)
- Web Ontology Language (OWL) (1)
- Werbung (1)
- Wiki (1)
- Wireless Sensor Networks (1)
- Wireless sensor network (1)
- Wireshark (1)
- Wissenskompilation (1)
- Wissensmanagement (1)
- World Wide Web (1)
- World Wide Web 2.0 (1)
- XML (1)
- XML-Dokument (1)
- Zertifikat (1)
- Zirkumskription (1)
- Zusammenhängender Graph (1)
- andLinux (1)
- andLinux. (1)
- automated theorem prover (1)
- backpropagation (1)
- bias (1)
- classification (1)
- concurrency (1)
- convergence analysis (1)
- data mining (1)
- deductive (1)
- description logic (1)
- e-learning (1)
- e-service quality (1)
- ediv (1)
- event model (1)
- event-based systems (1)
- first-order logic (1)
- folksonomies (1)
- gaze information (1)
- grassland (1)
- hybrid systems (1)
- hybride Automaten (1)
- iCity project (1)
- image semantics (1)
- information retrieval (1)
- knowledge management system (1)
- landmarks (1)
- living book (1)
- model generation (1)
- multi-agent systems (1)
- multiagent systems (1)
- multiprocessing (1)
- networks (1)
- neural (1)
- ontology (1)
- parallel computing (1)
- personal information management (1)
- persönliches Informationsmanagement (1)
- privacy protection (1)
- public key infrastructure (1)
- question answering (1)
- real-time computing (1)
- reasoning (1)
- recurrent (1)
- rip (1)
- rmti (1)
- semantic desktop (1)
- semantics (1)
- semantischer Desktop (1)
- sequent calculi (1)
- simulation (1)
- summative evaluation (1)
- tag recommendation (1)
- tagging (1)
- vegetation modeling (1)
- verification (1)
- virtual network user mode linux (1)
- vnuml (1)
- web 2.0 (1)
- xtpeer (1)
Institute
- Institut für Informatik (147) (remove)
The high cost of routing infrastructure makes checking theories about larger nets a very difficult and expensive task. One possible approach to fight this problem is the use of virtual instead of physical infrastructure. OPNet- IT Guru software is a suite designed to simulate large nets and present relevant information. This allows validating extensive changes before actually implementing them on a productive network or testing theories without the overhead of a physical infrastructure.
Interactive video retrieval
(2006)
The goal of this thesis is to develop a video retrieval system that supports relevance feedback. One research approach of the thesis is to find out if a combination of implicit and explicit relevance feedback returns better retrieval results than a system using explicit feedback only. Another approach is to identify a model to weight existing feature categories. For this purpose, a state-of-the-art analysis is presented and two systems implemented, which run under the conditions of the international TRECVID workshop. It will be a basis system for further research approaches in the field of interactive video retrieval. Amongst others, it shall participate in the 2006 search task of the mentioned workshop.
Viele Probleme in der Aussagenlogik sind nur sehr aufwändig lösbar. Ist beispielsweise eine Wissensbasis gegeben, an die wir Anfragen stellen, wollen, so kann dies mitunter sehr mühsam sein. Um trotzdem effizient Anfragen beantworten zu können, hat sich die Vorgehensweise der Wissenskompilation entwickelt. Dabei wird die Lösung der Aufgabe in eine Offline- und eine Online-Phase aufgeteilt. In der Offline-Phase wird die Wissensbasis präkompiliert. Dabei wird sie in eine bestimmte Form umgewandelt, auf der sich die erwarteten Anfragen effizient beantworten lassen. Diese Transformation der Wissensbasis ist meist sehr aufwändig, muss jedoch nur einmalig durchgeführt werden. In der darauffolgenden Online-Phase können nun effizient Anfragen beantwortet werden. In dieser Diplomarbeit wird eine spezielle Normalform, die sich als Zielsprache der Präkompilation anbietet, untersucht. Außerdem wird die Präkompilation so in einzelne Schritte unterteilt, dass möglicherweise bereits nach einigen Teilschritten Anfragen beantwortet werden können.
We aim to demonstrate that automated deduction techniques, in particular those following the model computation paradigm, are very well suited for database schema/query reasoning. Specifically, we present an approach to compute completed paths for database or XPath queries. The database schema and a query are transformed to disjunctive logic programs with default negation, using a description logic as an intermediate language. Our underlying deduction system, KRHyper, then detects if a query is satisfiable or not. In case of a satisfiable query, all completed paths -- those that fulfill all given constraints -- are returned as part of the computed models. The purpose of our approach is to dramatically reduce the workload on the query processor. Without the path completion, a usual XML query processor would search the database for solutions to the query. In the paper we describe the transformation in detail and explain how to extract the solution to the original task from the computed models. We understand this paper as a first step, that covers a basic schema/query reaÂsoning task by model-based deduction. Due to the underlying expressive logic formalism we expect our approach to easily adapt to more sophisticated problem settings, like type hierarchies as they evolve within the XML world.
The model evolution calculus
(2004)
The DPLL procedure is the basis of some of the most successful propositional satisfiability solvers to date. Although originally devised as a proof procedure for first-order logic, it has been used almost exclusively for propositional logic so far because of its highly inefficient treatment of quantifiers, based on instantiation into ground formulas. The recent FDPLL calculus by Baumgartner was the first successful attempt to lift the procedure to the first-order level without resorting to ground instantiations. FDPLL lifts to the first-order case the core of the DPLL procedure, the splitting rule, but ignores other aspects of the procedure that, although not necessary for completeness, are crucial for its effectiveness in practice. In this paper, we present a new calculus loosely based on FDPLL that lifts these aspects as well. In addition to being a more faithful litfing of the DPLL procedure, the new calculus contains a more systematic treatment of universal literals, one of FDPLL's optimizations, and so has the potential of leading to much faster implementations.
The Living Book is a system for the management of personalized and scenario specific teaching material. The main goal of the system is to support the active, explorative and selfdetermined learning in lectures, tutorials and self study. The Living Book includes a course on 'logic for computer scientists' with a uniform access to various tools like theorem provers and an interactive tableau editor. It is routinely used within teaching undergraduate courses at our university. This paper describes the Living Book and the use of theorem proving technology as a core component in the knowledge management system (KMS) of the Living Book. The KMS provides a scenario management component where teachers may describe those parts of given documents that are relevant in order to achieve a certain learning goal. The task of the KMS is to assemble new documents from a database of elementary units called 'slices' (definitions, theorems, and so on) in a scenario-based way (like 'I want to prepare for an exam and need to learn about resolution'). The computation of such assemblies is carried out by a model-generating theorem prover for first-order logic with a default negation principle. Its input consists of meta data that describe the dependencies between different slices, and logic-programming style rules that describe the scenario-specific composition of slices. Additionally, a user model is taken into account that contains information about topics and slices that are known or unknown to a student. A model computed by the system for such input then directly specifies the document to be assembled. This paper introduces the elearning context we are faced with, motivates our choice of logic and presents the newly developed calculus used in the KMS.