004 Datenverarbeitung; Informatik
Filtern
Erscheinungsjahr
Dokumenttyp
- Ausgabe (Heft) zu einer Zeitschrift (73)
- Dissertation (33)
- Masterarbeit (29)
- Diplomarbeit (27)
- Bachelorarbeit (25)
- Studienarbeit (11)
- Konferenzveröffentlichung (4)
- Habilitation (1)
Sprache
- Englisch (203) (entfernen)
Schlagworte
- Software Engineering (6)
- Bluetooth (4)
- ontology (4)
- API (3)
- E-KRHyper (3)
- Enterprise 2.0 (3)
- Knowledge Compilation (3)
- OWL (3)
- OWL <Informatik> (3)
- Ontologie <Wissensverarbeitung> (3)
- Ontology (3)
- Semantic Web (3)
- UML (3)
- University (3)
- classification (3)
- computer clusters (3)
- model-based (3)
- Abduktion <Logik> (2)
- Akzeptanz (2)
- Annotation (2)
- Beschaffung (2)
- Bildverarbeitung (2)
- Campus Information System (2)
- Cloud Computing (2)
- Computer Graphics (2)
- Computergraphik (2)
- Computersimulation (2)
- Data Mining (2)
- Equality (2)
- Formale Ontologie (2)
- Graphik (2)
- Line Space (2)
- Linked Open Data (2)
- Logistik (2)
- Maschinelles Lernen (2)
- Modellgetriebene Entwicklung (2)
- Netzwerk (2)
- Neuronales Netz (2)
- OpenGL (2)
- Petri Nets (2)
- Petri-Netze (2)
- Propagation (2)
- RDF (2)
- Schlussfolgern (2)
- Serviceorientierte Architektur (2)
- Softwaretest (2)
- Theorem Proving (2)
- Usability (2)
- Volumen-Rendering (2)
- Wikipedia (2)
- XML (2)
- artificial neural networks (2)
- constraint logic programming (2)
- governance (2)
- hybrid automata (2)
- mobile phone (2)
- multi-agent systems (2)
- multimedia metadata (2)
- parallel algorithms (2)
- probability propagation nets (2)
- semantics (2)
- social media (2)
- social simulation (2)
- 101companies (1)
- 2019 European Parliament Election (1)
- 8C model (1)
- ABox (1)
- API Analysis (1)
- API Migratiom (1)
- API analysis (1)
- API-Analyse (1)
- AUTOSAR (1)
- Acceleration Structures (1)
- Action Recognition (1)
- Action Segmentation (1)
- Adaptation (1)
- Adaptive Services Grid (ASG) (1)
- Adobe Flex (1)
- Agenten (1)
- Agentenorientiertes Software Engineering (1)
- Agents (1)
- Algolib (1)
- Algorithm Engineering (1)
- Amazon Mechanical Turks (1)
- Analysis of social platform (1)
- Android <Systemplattform> (1)
- Anpassung (1)
- Architektur <Informatik> (1)
- Archivierung (1)
- Articles for Deletion (1)
- Association Rules (1)
- Auditing (1)
- Augenbewegung (1)
- Augmented Reality (1)
- Auslese (1)
- Auswahl (1)
- Automated Theorem Proving (1)
- Automated Theorem Proving Systems (1)
- Automatische Klassifikation (1)
- Automatisches Beweisverfahren (1)
- Automotive Systems (1)
- Avatar (1)
- B2B Integration (1)
- BPM (1)
- BPMN (1)
- BPMS (1)
- Bayes Procedures (1)
- Bayes-Netz (1)
- Bayesian Networks (1)
- Bebauungsdichte (1)
- Bedarfsanalyse (1)
- Bedarfsforschung (1)
- Befahrbarkeit (1)
- Beschreibungslogik (1)
- Bildanalyse (1)
- Bildsegmentierung (1)
- Biometric Authentication (1)
- Bipartiter Graph (1)
- Blickbewegung (1)
- Blickpunktabhängig (1)
- Blog marketing (1)
- Border Gateway Protocol (1)
- Border Gateway Protocol 4 (1)
- Business Collaboration (1)
- Business Process Modeling (1)
- Bürgerbeiteiligung (1)
- C++ (1)
- CSCW (1)
- Calculus (1)
- Casual Games (1)
- CodeBlue (1)
- Cold Chain (1)
- Coloskopie (1)
- Communication Networks (1)
- Computational biology (1)
- Compute Shader (1)
- Computer Security (1)
- Computer Vision (1)
- Computer assisted communication (1)
- Computeranimation (1)
- Computersicherheit (1)
- Computerspiel (1)
- Computertomografie (1)
- Computervisualistik (1)
- Conference (1)
- Container Entity Modell (1)
- Content Analysis (1)
- Content Management (1)
- Context-aware processes (1)
- Core Ontology on Multimedia (1)
- Core Ontology on Multimedia (COMM) (1)
- Creativity (1)
- Criteria Matrix (1)
- Crowdsourcing (1)
- DPLL procedure (1)
- DTI (1)
- Darmpolyp (1)
- Data compression (1)
- Data manipulation (1)
- Data protection (1)
- Datenaustausch (1)
- Datenkompression (1)
- Datenschutz (1)
- Deduktion (1)
- Deep Metric Learning (1)
- Defi-Now! (1)
- Defibrillator (1)
- Delta (1)
- Description Logic (1)
- Description Logics (1)
- Design Pattern (1)
- Destiny (1)
- Developer profiling (1)
- Diabetes (1)
- Diabetische Retinopathie (1)
- Diagnose (1)
- Diagnoseunterstützung (1)
- Diagnosis (1)
- Diagnosis assistance (1)
- Diffusion (1)
- Diffusionsbildgebung (1)
- Digitale Bilder (1)
- Dijkstras Algorithmus (1)
- Dimension 3 (1)
- Dimensionality Reduction (1)
- Dimensionsreduzierung (1)
- Discussion Forums (1)
- Diskrete Simulation (1)
- Distance Vector Routing (1)
- Distanz Vektor Routing (1)
- Distributed Environments (1)
- Distributed process execution (1)
- Dokumentation (1)
- Drahtloses lokales Netz (1)
- Dreidimensionale Bildverarbeitung (1)
- Driver Assistance Systems (1)
- Dynamische Analyse (1)
- E-Business (1)
- E-Hyper Tableau (1)
- E-KRHyper theorem prover (1)
- E-Partizipation (1)
- E-government (1)
- E-participation (1)
- E-services (1)
- ECMS 2012 (1)
- EU (1)
- Eclipse <Programmierumgebung> (1)
- Einkauf (1)
- Empfehlungssystem (1)
- Empirical Studies (1)
- Emulation (1)
- Enhanced Reality (1)
- Enhanced Representation (1)
- Enterprise Information Management (1)
- Enterprise Systems (1)
- Entwickler Profil (1)
- Entwurfsmuster (1)
- Ergonomic Principles (1)
- Erste Hilfe (1)
- European Conference on Modelling and Simulation (1)
- Europäischer Schadensbericht (1)
- Evaluierung (1)
- Eye Tracking (1)
- Eyetracking (1)
- Fabric Simulation (1)
- Facebook Application (1)
- Fahrverhalten (1)
- Fahrzeug (1)
- Farbkalibrierung (1)
- Fault Trees (1)
- Feature Extraction (1)
- Feature Modeling (1)
- Fehlerbaum (1)
- Fiber Tracking (1)
- Fingerprint Recognition (1)
- First aid (1)
- FlexViz (1)
- Food Transportation System (1)
- Foodstuff (1)
- Formal Methods (1)
- Formale Methoden (1)
- Fotoauswahl (1)
- Fragebeantwortung (1)
- Function Words (1)
- GDPR (1)
- GDS (1)
- GPGPU (1)
- GPS (1)
- GReQL2 (1)
- GSM-Standard (1)
- GazeTheWeb (1)
- Gefäßanalyse (1)
- Gefühl (1)
- Gehirn (1)
- Gelände (1)
- Generative Model (1)
- Geocaching (1)
- Gerichteter Graph (1)
- Germany (1)
- Grafikkarte (1)
- Grafikprogrammierung (1)
- Grails (1)
- Grails 1.2 (1)
- Graph Technology (1)
- Graphicsprogramming (1)
- Graphik-Hardware (1)
- Grounded Theory (1)
- Gruppenarbeit (1)
- Hand-based Gestures (1)
- Haskell (1)
- Healthcare institution (1)
- Hindernis (1)
- Horn Clauses (1)
- Human motion (1)
- Human-Computer Interaction (1)
- Hyper Tableau Calculus (1)
- Hypertableaux (1)
- I-messages (1)
- IASON (1)
- IT Guru (1)
- IT Outsourcing (1)
- IT Security (1)
- IT Services (1)
- Image (1)
- Image Processing (1)
- Image Understanding (1)
- Imitation Learning (1)
- Incremental Algorithms (1)
- Industrial-CT (1)
- Informatik (1)
- Information Asset Register (1)
- Information Audit (1)
- Information Capturing Methods (1)
- Information Retrieval (1)
- Information system (1)
- Inpainting-Verfahren (1)
- Intelligent Information Network (1)
- Interactive Video Retrieval (1)
- Internet (1)
- Internet Voting (1)
- Internet of Things (1)
- Interoperability (1)
- Interoperabilität (1)
- JGraLab (1)
- JML (1)
- Java (1)
- Java <Programmiersprache> (1)
- Java Modeling Language (1)
- Java. Programmiersprache (1)
- KRHyper (1)
- Kantenbewerteter Graph (1)
- Kantenverfolgung (1)
- Klassifikation (1)
- Knowledge (1)
- Knowledge Graphs (1)
- Knowledge Sharing (1)
- Kollaboration (1)
- Konturfindung (1)
- Konzept (1)
- Künstliche Intelligenz (1)
- Laser (1)
- Latent Negative (1)
- Leichte Sprache (1)
- Linespace (1)
- Link Prediction (1)
- Linked Data Modeling (1)
- Logik (1)
- Logischer Schluss (1)
- Lokalisation (1)
- MIA (1)
- MPEG-7 (1)
- Machine-Learning (1)
- Machinelles lernen (1)
- MapReduce (1)
- Maschinelles Sehen (1)
- Matching (1)
- MeVisLab (1)
- Mediator framework (1)
- Medical Image Analysis (1)
- Medizinische Bildanalyse (1)
- Medizinische Bildverarbeitung (1)
- Mensch-Maschine-Interaktion (1)
- Merkmalsdetektion (1)
- Merkmalsextrahierung (1)
- Metamodel (1)
- Migration (1)
- Mining (1)
- Mister X (1)
- Mitral Valve (1)
- Mitralklappe (1)
- Mobile Information Systems (1)
- Model-Driven Engineering (1)
- Modellfahrzeug (1)
- Morphologische Operatoren (1)
- Motion Capturing (1)
- Motivation (1)
- Mouse Gestures (1)
- Multi-Agenten-Systeme (1)
- Multi-robot System (1)
- Multiagent System (1)
- Multiagentensysteme (1)
- Multidimensional (1)
- Multimedia Metadata Ontology (1)
- Multimodal Action Recognition (1)
- Multiple Object Tracking (1)
- N-Body Simulation (1)
- N-Körper Simulation (1)
- Native language identification (1)
- Natural Feature Tracking (1)
- Natural Language Processing (1)
- Netzwerk Routing (1)
- Netzwerkanalyse (1)
- OCL <Programmiersprache> (1)
- ODRL (1)
- ONDEX (1)
- OPNET (1)
- OVTK (1)
- Object Recognition (1)
- Objektentfernung (1)
- One-Shot Action Recognition (1)
- Online Community (1)
- Ontologie. Wissensverarbeitung (1)
- Ontology API model (1)
- Ontology alignment (1)
- OpenGL Shading Language (1)
- OpenVDB (1)
- Oracle Generation (1)
- Oraklegenerierung (1)
- PEPPOL (1)
- POIs (1)
- Pan European Public Procurement OnLine (1)
- Path Tracing (1)
- Pattern Recognition (1)
- Personalised Information Systems (1)
- Petri net (1)
- Petri-Netz (1)
- Petrinetz (1)
- Pfadnachverfolgung (1)
- Pfadplanung (1)
- Pfadverfolgung (1)
- Photographie (1)
- Plug in (1)
- Pointing Devices (1)
- Policy Language (1)
- Political Communication (1)
- Politik (1)
- Probabilistic finite automata (1)
- Probability (1)
- Probability propagation nets (1)
- Proceedings (1)
- Process tracing (1)
- Programmierung (1)
- Provenance (1)
- Prozedurale Synthese (1)
- Prädikatenlogik (1)
- Quality assessment system (1)
- Query Expansion (1)
- RDF Graphs (1)
- RDF modeling (1)
- Random Finite Sets (1)
- Raytracing (1)
- ReDSeeDS-Project (1)
- Real-Life Game (1)
- Real-Life Spiel (1)
- Real-Time (1)
- Recommender System (1)
- Reddit (1)
- Reengineering (1)
- Reflections (1)
- Reflektionen (1)
- Regionenlabeling (1)
- Registratur (1)
- Relevance Feedback (1)
- Rendering (1)
- Resource Description Framework (RDF) (1)
- Retina Befundbilder (1)
- Retina Fundus Bilder (1)
- Retina Fundus Images (1)
- Reverse Engineering (1)
- RoboCup (1)
- Robocup 2008 (1)
- Roboter (1)
- Robotik (1)
- Routing Information Protocol (1)
- Routing Information Protocol (RIP) (1)
- Routing Information Protokoll (1)
- Routing Loops (1)
- Routing with Metric based Topology Investigation (RMTI) (1)
- Rückverfolgbarkeit (1)
- SOA (1)
- SPARQL (1)
- STOF Model (1)
- Sattelkraftfahrzeug (1)
- Sattelzug (1)
- Schema Information (1)
- Search engine (1)
- Security (1)
- Security Routing (1)
- Segmentation (1)
- Segmentierung (1)
- Semantic Data (1)
- Semantics (1)
- Service identification (1)
- Service-Identifizierung (1)
- Service-oriented Architectures (SOA) (1)
- Service-orientierte Architektur (1)
- Shader (1)
- Sicherheit Routing (1)
- Simulationswerkzeug (1)
- Smartphone (1)
- Smartphone Applikation (1)
- Social Games (1)
- Social Networking Platforms (1)
- Software (1)
- Software Development (1)
- Software Language (1)
- Software Technology (1)
- Software migration (1)
- Software techniques for object recognition (STOR) (1)
- Software-Migration (1)
- Softwarearchitektur (1)
- Softwareentwicklung (1)
- Softwareergonomie (1)
- Softwaretesting (1)
- Softwarewartung (1)
- Soziales Netzwerk (1)
- Sozialwissenschaftliche Simulation (1)
- Speaker Recognition (1)
- Specification (1)
- Specular (1)
- Spezifikation (1)
- Steuerung (1)
- Stochastic Logic (1)
- Stoffsimulation (1)
- Strassenkreuzung (1)
- Straßenzustand (1)
- Support System (1)
- Survey Research (1)
- Systembiologie (1)
- TAP (1)
- TBox (1)
- TRECVID (1)
- Tableau Calculus (1)
- Taxonomy (1)
- Technologischer Raum (1)
- Tenneco Automotive (1)
- Test Generation (1)
- Testen (1)
- Testgenerierung (1)
- Text (1)
- Text Analysis (1)
- Text Mining (1)
- Text classification (1)
- Texterkennung (1)
- Theorem prover (1)
- Theorembeweiser (1)
- Tokens (1)
- Tool Evaluation (1)
- Traceability (1)
- Tracing (1)
- Tracking-System (1)
- Transferfunction (1)
- Transferfunktion (1)
- Transport (1)
- Type System (1)
- Type system (1)
- Ultraschall (1)
- Ultrasound (1)
- Umfrage in Koblenz (1)
- Unified Modeling Language (UML ) (1)
- Unlink Prediction (1)
- Unsicheres Schließen (1)
- Unterwasser-Pipeline (1)
- Unterwasserfahrzeug (1)
- Unterwasserkabel (1)
- VCD (1)
- VIACOBI (1)
- Vascular analysis (1)
- Vegetation distribution (1)
- Verifikation (1)
- Virtual Company Dossier (1)
- Virtual characters (1)
- Virtuelle Realität (1)
- Visibility Skeleton (1)
- Visual Stimuli Discovery (1)
- Vocabulary Mapping (1)
- Vocabulary Reuse (1)
- Vocabulary Trainer (1)
- Volume Hatching (1)
- WEB (1)
- WLAN Fingerprinting (1)
- WSDL (1)
- WSN (1)
- Wahrscheinlichkeit (1)
- Wahrscheinlichkeitsrechnung (1)
- Wavelet (1)
- Web (1)
- Web Analytics (1)
- Web Analytics Framework (1)
- Web Mining (1)
- Web Ontology Language (OWL) (1)
- Web Science (1)
- Web Services (1)
- Web log (1)
- Web-application framework (1)
- Web-programming technologies (1)
- Weblog (1)
- Website (1)
- Wechselkursänderung (1)
- Werbung (1)
- WiFi Fingerprinting (1)
- Wissensbasis (1)
- Wissensmanagement (1)
- Word-of-Mouth (1)
- World Wide Web 2.0 (1)
- Wrapping (1)
- You-messages (1)
- acceptance (1)
- adaptive resonance theory (1)
- application programming interfaces (1)
- archiving (1)
- artifcial neural networks (1)
- artiffficial neural networks (1)
- artififfcial neural networks (1)
- assessment model (1)
- automated theorem prover (1)
- backpropagation (1)
- benefits (1)
- bias (1)
- blood analysis (1)
- business process management (1)
- by-stander effect (1)
- categorisation (1)
- collaboration (1)
- collaborative technologies (1)
- colour calibration (1)
- concept (1)
- concurrency (1)
- conflict detection (1)
- contexts of use (1)
- core ontologies (1)
- cultural dimensions (1)
- currency exchange rates (1)
- data mining (1)
- data protection (1)
- data warehouse (1)
- deductive (1)
- description logic (1)
- deutsche Hochschulen (1)
- diabetic retinopathy (1)
- diffusion (1)
- directed acyclic graphs (1)
- distinct object identifiers (1)
- distributed information systems (1)
- e-Commerce (1)
- e-learning (1)
- e-service (1)
- e-service quality (1)
- eGovernment (1)
- eSourcing (1)
- eXperience methodology (1)
- edge linking (1)
- estimation of algorithm efficiency (1)
- evaluation (1)
- event model (1)
- event-based systems (1)
- events (1)
- evolution (1)
- eye tracking (1)
- faceted search (1)
- fairness (1)
- finite state automata (1)
- first-order logic (1)
- folksonomies (1)
- functional web testing tools (1)
- gaze information (1)
- gradient method of training weight coefficients (1)
- grassland (1)
- groupwork (1)
- hybrid systems (1)
- hybride Automaten (1)
- hypertableaux (1)
- iCity project (1)
- image processing (1)
- image semantics (1)
- information retrieval (1)
- information system (1)
- jOWL (1)
- knowledge base (1)
- knowledge management system (1)
- knowledge work (1)
- landmarks (1)
- living book (1)
- logistic (1)
- long-living systems (1)
- mPayments (1)
- mathematical model (1)
- medical care (1)
- medical image processing (1)
- metadata formats (1)
- metadata standards (1)
- methodology (1)
- micro-agent (1)
- minimum self-contained graphs (1)
- mobile application (1)
- mobile devices (1)
- mobile facets (1)
- mobile health care (1)
- mobile interaction (1)
- model generation (1)
- model-driven engineering (1)
- modulares System (1)
- morphological operators (1)
- multiagent systems (1)
- multidimensional (1)
- natural language generation (1)
- networks (1)
- neural (1)
- parallel calculations (1)
- path planning (1)
- personal information management (1)
- persönliches Informationsmanagement (1)
- photo selection (1)
- plain language (1)
- points of interest (1)
- policy modelling (1)
- privacy by design (1)
- privacy impact assessment (1)
- privacy protection (1)
- procedural content generation (1)
- public key infrastructure (1)
- question answering (1)
- recurrent (1)
- region labeling (1)
- regression analysis (1)
- regular dag languages (1)
- requirements analysis (1)
- retina fundus images (1)
- rich multimedia presentations (1)
- risk (1)
- robotics (1)
- scaffolded writing (1)
- scene analysis (1)
- security (1)
- semantic annotation (1)
- semantic desktop (1)
- semantischer Desktop (1)
- sequent calculi (1)
- shiq (1)
- simulation (1)
- smartphone app (1)
- social media data (1)
- social object (1)
- software engineering (1)
- summative evaluation (1)
- survey in Koblenz (1)
- tag recommendation (1)
- tagging (1)
- time series (1)
- tool-integration (1)
- traceability (1)
- tracking (1)
- transformation (1)
- unique name assumption (1)
- usability study (1)
- vegetation modeling (1)
- verification (1)
- video games (1)
- virtual goods (1)
- visualization (1)
- web 2.0 (1)
- web-portal medical e-services (1)
- wireless sensor networks (1)
This paper describes results of the simulation of social objects, the dependence of schoolchildren's professional abilities on their personal characteristics. The simulation tool is the artificial neural network (ANN) technology. Results of a comparison of the time expense for training the ANN and for calculating the weight coefficients with serial and parallel algorithms, respectively, are presented.
We present a non-linear camera pose estimator, which is able to handle a combined input of point and line feature correspondences. For three or more correspondences, the estimator works on any arbitrary number and choice of the feature type, which provides an estimation of the pose on a preferably small and flexible amount of 2D-3D correspondences. We also give an analysis of different minimization techniques, parametrizations of the pose data, and of error measurements between 2D and 3D data. These will be tested for the usage of point features, lines and the combination case. The result shows the most stable and fast working non-linear parameter set for pose estimation in model-based tracking.
The paper is devoted to solving a problem of the development of the website of Russian municipal policlinics and provides a selection of a set of elements which should be posted on a website. Such elements are necessary to provide citizens with correct and ergonomic e-services. The insufficient development of an infrastructure of institutions of public and municipal administration (particularly, healthcare institutions) in Russia made it necessary to analyze webresources used in different countries at different levels of providing medical services. The information resources of medical treatment facilities of the United Kingdom, of the United Statesrnof America and of the Federal Republic of Germany were researched separately for three existing economic models of healthcare. A set of criteria for the assessment of medical webresources was developed.
Expert-driven business process management is an established means for improving efficiency of organizational knowledge work. Implicit procedural knowledge in the organization is made explicit by defining processes. This approach is not applicable to individual knowledge work due to its high complexity and variability. However, without explicitly described processes there is no analysis and efficient communication of best practices of individual knowledge work within the organization. In addition, the activities of the individual knowledge work cannot be synchronized with the activities in the organizational knowledge work.rnrnSolution to this problem is the semantic integration of individual knowledgernwork and organizational knowledge work by means of the patternbased core ontology strukt. The ontology allows for defining and managing the dynamic tasks of individual knowledge work in a formal way and to synchronize them with organizational business processes. Using the strukt ontology, we have implemented a prototype application for knowledge workers and have evaluated it at the use case of an architectural fifirm conducting construction projects.
In dieser Arbeit wird ein skelettbasiertes Matching-Verfahren für 2D-Objekte vorgestellt. Zunächst werden aktuelle Ansätze zum Matchen von Objekten vorgestellt, anschließend werden die Grundlagen von skelettbasiertem Matching erklärt. Ein skelettbasiertes Verfahren wurde im Rahmen dieser Arbeit gemäß dem vorliegenden Original-Paper neu implementiert. Diese Implementierung wird anhand einer Ähnlichkeitssuche in drei Bild-Datenbanken evaluiert. Stärken und Schwächen des Verfahrens werden herausgearbeitet. Des weiteren wird der vorgestellte Algorithmus auf Erweiterungen untersucht, die das Matchen von 3D-Objekten ermöglichen sollen. Im speziellen wird das Verfahren auf medizinische Daten angewendet: CT-Aufnahmen der abdominalen Aorta eines Patienten vor und nach einer Operation werden miteinander verglichen. Problemfälle und Erweiterungsansätze für das Matchen von 3D-Objekten im Allgemeinen und von Blutgefäßen im Speziellen werden vorgestellt.
Folksonomien sind Web 2.0 Plattformen, in denen Benutzer verschiedene Inhalte miteinander teilen können. Die Inhalte können mit Hilfe von Stichwörtern, den sogenannten Tags, kategorisiert und organisiert werden. Die verschiedenen Folksonomien unterstützen unterschiedliche Inhaltstypen wie zum Beispiel Webseiten (Delicious), Bilder (Flickr) oder Videos (YouTube). Aufgrund ihrer einfachen Benutzungsweise haben Folksonomien viele Millionen Benutzer. Die einfache Benutzungsweise führt aber auch zu einigen Problemen. Diese Doktorarbeit beschäftigt sich mit drei der wichtigsten Probleme und beschreibt Methoden, wie sie gelöst werden können. Das erste dieser Probleme tritt auf, wenn Benutzer die Folksonomien nach bestimmten Inhalten durchsuchen wollen. Häufig können dabei nicht alle relevanten Inhalte gefunden werden, da diesen relevante Stichwörter fehlen. Dementsprechend tritt das zweite Problem während der Vergabe von Stichwörtern auf. Manche Folksonomien, wie zum Beispiel Delicious, unterstützen ihre Benutzer dabei, indem sie ihnen mögliche Stichwörter empfehlen. Andere Folksonomien, wie zum Beispiel Flickr, bieten keine solche Unterstützung. Die Empfehlung von Stichwörtern hilft dem Benutzer dabei, Inhalte auf einfache Art und Weise mit den jeweils relevanten Stichwörtern zu versehen. Das dritte Problem besteht darin, dass weder Stichwörter noch Inhalte mit einer festen Semantik versehen sind und mehrdeutig sein können. Das Problem entsteht dadurch, dass die Benutzer die Stichwörter vollkommen frei rnverwenden können. Die automatische Identifizierung der Semantik von Stichwörtern und Inhalten hilft dabei, die dadurch entstehenden Probleme zu reduzieren. Diese Doktorarbeit stellt mehrere Methoden vor, wie verschiedene Quellen für semantische Informationen benutzt werden können, um die vorher genannten drei Probleme zu lösen. In dieser Doktorarbeit benutzen wir als Quellen Internetsuchmaschinen, soziale Netzwerke im Internet und die gemeinsamen Vorkommen von Stichwörtern in Folksonomien. Die Verwendung der verschiedenen Quellen reduziert den Aufwand bei der Erstellung von Systemen, die die vorher genannten Probleme lösen. Die vorgestellten Methoden wurden auf einem großen Datensatz evaluiert. Die erzielten Ergebnisse legen nahe, dass semantische Informationen bei der Lösung der Probleme helfen, die während der Suche von Inhalten, der Empfehlung von Stichwörtern als auch der automatischen Identifizierung der Semantik von Stichwörtern und Inhalten auftreten.
MapReduce with Deltas
(2011)
The MapReduce programming model is extended slightly in order to use deltas. Because many MapReduce jobs are being re-executed over slightly changing input, processing only those changes promises significant improvements. Reduced execution time allows for more frequent execution of tasks, yielding more up-to-date results in practical applications. In the context of compound MapReduce jobs, benefits even add up over the individual jobs, as each job gains from processing less input data. The individual steps necessary in working with deltas are being analyzed and examined for efficiency. Several use cases have been implemented and tested on top of Hadoop. The correctness of the extended programming model relies on a simple correctness criterion.
This paper introduces Vocville, a causal online game for learning vocabularies. I am creating this application for my master thesis of my career as a "Computervisualist" (computer visions) for the University of Koblenz - Landau. The application is an online browser game based on the idea of the really successful Facebook game FarmVille. The application is seperated in two parts; a Grails application manages a database which holds the game objects like vocabulary, a Flex/Flash application generates the actual game by using these data. The user can create his own home with everything in it. For creating things, the user has to give the correct translation of the object he wants to create several times. After every query he has to wait a certain amount of time to be queried again. When the correct answer is given sufficient times, the object is builded. After building one object the user is allowed to build others. After building enough objects in one area (i.e. a room, a street etc.) the user can activate other areas by translating all the vocabularies of the previous area. Users can also interact with other users by adding them as neighbors and then visiting their homes or sending them gifts, for which they have to fill in the correct word in a given sentence.