Flexible query answering systems : Recent advances : Proceedings of the Fourth International Conference on flexible query answering systems, FQAS'2000, October 25-28, 2000, Warsaw, Poland

Flexibility in Database Management and Querying: J. Albrecht, W. Hummer, W. Lehner, L. Schlesinger: Using Semantics for Query Derivability in Data Warehouse Applications.- T. Andreasen, J.F. Nilsson, H.E. Thomsen: Ontology-Based Quering.- M. Arenas, L. Bertossi, J. Chomicki: Specifying and Querying Database Repairs Using Logic Programs with Exceptions.- A. Bidault, C. Froideveaux, B. Safar: Finding Successful Queries in a Mediator Context.- I.J. Blanco, N. Marin, O. Pons, M.A. Vila: An Extension of Data Description Language (DDL) for Fuzzy Data Handling.- P. Bosc, L. Lietard, O. Pivert: About Ill-Known Data and Equi-Join Operations.- M. Koyuncu, A. Yazici, R. George: Flexible Querying in an Intelligent Object-Oriented Database.- U. Leser, F. Naumann: Query Planning with Information Quality Bounds.- P. Marcincak, M. Matula: Metadata and Object-Oriented Approach to Flexible Querying.- A. Morris, P. Jankowski: Combining Fuzzy Sets and Databases in Multiple Criteria Spatial Decision Making.- Z.W. Ras: Query Answering in DAKS Based on Reducts.- A. Seriai, C. Oussalah: A Reuse Based Object-Oriented Framework Towards Flexible Formulation of Complex Queries. Knowledge Representation and Reasoning: S. Abdennadher, H. Christiansen: An Experimental CLP Platform for Integrity Constraints and Abduction.- K.T. Atanassov: Temporal Intuitionistic Fuzzy Relations.- P. Chountas, I. Petrounias: Representing Temporal and Factual Uncertainty.- R. Demolombe: Abstract Objects to Represent Large Answers to Queries in a Concise Form.- L. Mota-Herranz, M. Celma-Gimenez, H. Decker: Transaction Trees for Knowledge Revision.- N.G. Nikolov: Situations Endowed with Lattice Structure.- Z.A. Sosnowski: Activation of Fuzzy Rules in RETE Network.- Z. Stojanovic: New Methods for Qualitative spatial Reasoning Based on Matrix Calculus.- P. Vojtas, Z. Fabian: Aggregating Similar Witnesses for Flexible Query Answering.- S. Zbroja, A. Ligeza: Case-Based Reasoning within Tabular Systems. ExtendedStructural Data Representation and Partial Matching. Natural Language and Multimedia Processing: A. Ballim, V. Pallotta: Weighted Semantic Parsing: A Robust Approach to Interpretation of Natural Language Queries.- F. Crestani: Word Recognition Errors and Relevance Feedback in Spoken Query Processing.- M. Detyniecki: Browsing a Video with Simple Constrained Queries over Fuzzy Annotations.- C. Enguehard: Flexible-Equality of Terms: Definition and Evaluation.- M. Lalmas, T. Rolleke, F. Turra, N. Fuhr: Concepts for a Graphical User Interface for Hypermedia Retrieval.- M.T.P. Santos, M.T.P. Vieira, S.R. Borges, J.M. Figueiredo, F. Fornazaria, M. Biajiz: Semantic Information Search Facilities for MHEG-5 and SMIL Applications.- K. Saaeed, A. Dardzinska: Cursive Letters Language Processing: Muqla Model and Toeplitz Matrices Approach. Information Retrieval and Semistructured Data: P. Baranyi, L.T. Koczy: Saving Calculation in Information Retrieval.- G. Bordogna, G. Pasi: Flexible Querying of Structured Documents.- P. Buche, O. Haemmerle: Towards Category-Based Fuzzy Querying of Both Structured and Semi-Structured Imprecise Data.- M.-S. Hacid, F. Toumani: Declarative Constrained Language for Semistructured Data.- D.H. Kraft, J. Chen: Integrating and Extending Fuzzy Clustering and Inferencing to Improve Text Retrieval Performance.- M.J. Martin-Bautista, D. Sanchez, M.-A. Vila, H.L. Larsen: Measuring Effectiveness in Fuzzy Information Retrieval. Acquisition of Data and Knowledge: H. Aladjov: Intuitionistic Fuzzy Generalized Net Model Describing the Process of Training of Intuitionistic Fuzzy Generalized Net Models.- P. Alcamo, F. Domenichini, F. Turini: An XML Based Environment in Support of the Overall KDD Process.- J.-F. Boulicaut, A. Bykowski, B. Jeudy: Towards the Tractable Discovery of Association Rules with Negations.- F. Gianotti, G. Manco: Declarative Knowledge Extraction with Iterative User-Defined Aggregates.- A. Dvorak, V. Novak: On the Extraction of Linguistic