Database and Expert Systems Applications

This book contains the refereed proceedings of the 8th International Conference on Database and Expert Systems Applications, DEXA '97, held in Toulouse, France, September 1997. The 62 revised full papers presented in the book, together with three invited contributions, were selected from a total of 159 submissions. The papers are organized in sections on modeling, object-oriented databases, active and temporal aspects, images, integrity constraints, multimedia databases, deductive databases and knowledge-based systems, allocation concepts, data interchange, digital libraries, transaction concepts, learning issues, optimization and performance, query languages, maintenance, federated databases, uncertainty handling and qualitative reasoning, and software engineering and reusable software.

Connecting databases to the web: A taxonomy of gateways.- Multimedia federated databases on intranets: Web-enabling IRO-DB.- A terminological canonical data model for cooperating heterogeneous geographical information systems.- An extensible approach to reactive processing in an advanced object modelling environment.- Constructing the functional model.- Horizontal class partitioning in object-oriented databases.- Incremental inheritance model for an OODBMS.- A clustering technique for object-oriented databases.- Design and implementation of TEMPO fuzzy triggers.- Supporting and maintaining derivations: A declarative active approach active approach.- Modeling histories in object DBMS.- Activity threads: A unified framework for aiding behavioural modelling.- Linking object-oriented conceptual modeling with object-oriented implementation in Java.- Toward a unified data model for large hypermedia applications.- Managing the global behavior of composite objects.- Heuristic clustering of database objects according to multi-valued attributes.- Object-oriented environment for collaborative software design.- Refined termination decision in active databases.- A time-stamped authoring graph for video databases.- An approach to spatio-temporal queries.- An image retrieval system based on the visualization of system relevance via documents.- ImageRoadMap: A new content-based image retrieval system.- First steps to a formal framework for multilevel database modifications.- Versions of integrity constraints in multiversion databases.- Structuring the process of integrity maintenance.- A retrieval mechanism for semi-structured photographic collections.- Encapsulating multimedia contents and a copyright protection mechanism into distributed objects.- A priority-driven inheritance scheme for temporal-spatial structures in multimedia databases.- Relational database reverse engineering and terminological reasoning.- Efficient answer extraction of deductive databases modeled by HLPN.- Modeling negative and disjunctive information in relational databases.- Query-driven data allocation algorithms for distributed database systems.- A general multidimensional data allocation method for multicomputer database systems.- Distribution object oriented databases: An allocation method.- A meta message approach for Electronic Data Interchange (EDI).- Schemaless representation of semistructured data and schema construction.- M-ary commitment protocol with partially ordered domain.- Metadata for a digital library of historical documents.- Assembling documents from digital libraries.- Two-layer transaction management for workflow management applications.- Crash recovery in an open and safe nested transaction model.- A machine learning workbench in a DOOD framework.- Examining complex objects for type scheme discovery.- A framework for algebraic optimization of object-oriented query languages.- A library application on top of an RDBMS: Performance aspects.- Analysis of nearest neighbor query performance in multidimensional index structures.- A query language and interface for integrated media and alphanumeric database systems.- An algebraic query language for object-oriented data models.- The development of ordered SQL packages for modelling advanced applications.- Incremental update algorithms for materialized spatial views by using view derivation relationships.- Incremental maintenance of materialized views.- Federated information management for cooperative virtual organizations.- Extending a view mechanism to support schema evolution in federated database systems.- On the query treatment in federated systems.- Query processing and transforming for a federated database System.- Valid or complete information in databases —A possibility theory-based analysis—.- Handling imperfection in databases: A modal logic approach.- Text knowledge engineering by qualitative terminological learning.- A tesseral approach to N-dimensional spatial reasoning.- Guidance for requirements engineering processes.- Repository based software cost estimation.- Using a generic approach to support the construction of methods.- The role of structural events in behaviour specification.