Database and Expert Systems Applications: 10th International Conference, DEXA'99, Florence, Italy, August 30 - September 3, 1999, Proceedings (Lecture Notes in Computer Science, 1677)

The Database and Expert Systems Applications (DEXA) conferences bring together researchers and practitioners from all over the world to exchange ideas, experiences and opinions in a friendly and stimulating environment. The papers are at once a record of what has been achieved and the first steps towards shaping the future of information systems. DEXA covers a broad field, and all aspects of database, knowledge base and related technologies and their applications are represented. Once again there were a good number of submissions: 241 papers were submitted and of these the programme committee selected 103 to be presented. DEXA’99 took place in Florence and was the tenth conference in the series, following events in Vienna, Berlin, Valencia, Prague, Athens, London, Zurich, Toulouse and Vienna. The decade has seen many developments in the areas covered by DEXA, developments in which DEXA has played its part. I would like to express thanks to all the institutions which have actively supported and made possible this conference, namely: • University of Florence, Italy • IDG CNR, Italy • FAW – University of Linz, Austria • Austrian Computer Society • DEXA Association In addition, we must thank all the people who have contributed their time and effort to make the conference possible. Special thanks go to Maria Schweikert (Technical University of Vienna), M. Neubauer and G. Wagner (FAW, University of Linz). We must also thank all the members of the programme committee, whose careful reviews are important to the quality of the conference. On Tractable Queries and Constraints....Pages 1-15 Instances Evolution Vs Classes Evolution....Pages 16-25 Dynamic Relationships in Object Oriented Databases: A Uniform Approach....Pages 26-35 IFOOD: An Intelligent Object-Oriented Database Architecture....Pages 36-45 An OODBMS-IRS Integration Based on a Statistical Corpus Extraction Method for Document Management....Pages 46-55 Controlled Hypertextual Navigation in the SgmlQL Language....Pages 56-65 SECONDO/QP: Implementation of a Generic Query Processor....Pages 66-87 Hybrid Simultaneous Scheduling and Mapping in SQL Multi-query Parallelization....Pages 88-98 Cluster-Based Database Selection Techniques for Routing Bibliographic Queries....Pages 100-109 Developing Patterns as a Mechanism for Assisting the Management of Knowledge in the Context of Conducting Organisational Change....Pages 110-122 Knowledge Acquisition for Mobile Robot Environment Mapping....Pages 123-134 Text Understanding for Knowledge Base Generation in the SYNDICATE System....Pages 135-145 Knowledge Discovery with the Associative Memory Modell Neunet....Pages 146-155 Tracking Mobile Users Utilizing Their Frequently Visited Locations....Pages 156-165 VPSF: A Parallel Signature File Technique Using Vertical Partitioning and Extendable Hashing....Pages 166-175 A Case for Deltas in Business—to—Business Electronic Commerce....Pages 176-185 Flexible Workflow Management Systems: An Approach Based on Generic Process Models....Pages 186-195 Object-Based Ordered Delivery of Messages in Object-Based Systems....Pages 196-205 Storage and Retrieval of XML Documents Using Object-Relational Databases....Pages 206-217 SQL/LPP: A Time Series Extension of SQL Based on Limited Patience Patterns....Pages 218-227 A Knowledge Based Approach for Modeling and Querying Multidimensional Databases....Pages 228-237 An Incremental Hypercube Approach for Finding Best Matches for Vague Queries....Pages 238-249 Formalising Ontologies and Their Relations....Pages 250-259 Is this Argument Justified, Overruled or Defensible?....Pages 260-269 Addressing Efficiency Issues During the Process of Integrity Maintenance....Pages 270-281 Quality and Recommendation of Multi-Source Data for Assisting Technological Intelligence Applications....Pages 282-291 Benchmarking Attribute Cardinality Maps for Database Systems Using the TPC-D Specifications....Pages 292-301 Using Self-organizing Maps to Organize Document Archives and to Characterize Subject Matters: How to Make a Map Tell the News of the World....Pages 302-311 Combining C-signature with Path Dictionary for Query Processing of Nested Objects in OODBS....Pages 312-321 A CORBA Object-based Caching with Consistency....Pages 322-331 From Object-Oriented Conceptual Modeling to Component-Based Development....Pages 332-341 Query Processing in Relationlog....Pages 342-351 Rewriting Queries using Views....Pages 352-361 A Query Subsumption Technique....Pages 362-371 A Conference Key Multicasting Scheme Using Knapsack and Secret Sharing....Pages 372-381 Verify Updating Trigger Correctness....Pages 382-391 A Flexible Weighting Scheme for Multimedia Documents....Pages 392-404 A Fast Method for Ensuring the Consistency of Integrity Constraints....Pages 406-415 A Mechanism for Deriving Specifications of Security Functions in the Common Criteria Framework....Pages 416-425 Efficient Retrieval of Structured Documents from Object-Relational Databases....Pages 426-435 Analysis of Active Database Rules Behaviour Using Rewriting Logic....Pages 436-449 Parallel Object Server - Architecture and Performance....Pages 450-459 Using Contextual Fuzzy Views to Query Imprecise Data....Pages 460-472 Combining Pat-Trees and Signature Files for Query Evaluation in Document Databases....Pages 473-484 Answering Queries by Semantic Caches....Pages 485-498 Simulating the Interaction of Database Agents....Pages 499-510 Automatic and Semantic Techniques for Scheme Integration and Scheme Abstraction....Pages 511-520 Dialogue Management in a Virtual College....Pages 521-530 Meta Data Based EDI for Small Enterprises....Pages 531-539 Database Challenges for Genome Information in the Post Sequencing Phase Moussouni....Pages 540-549 Supporting Teams in Virtual Organizations....Pages 550-559 If We Refuse the Inheritance....Pages 560-572 Viewpoints Handling in an Object Model with Criterium-Based Classes....Pages 573-582 The Constructive Method for Query Containment Checking....Pages 583-593 On the Specification of Representation-Based Conditions in a Context of Incomplete Databases....Pages 594-603 Methods and Interpretation of Database Summarisation....Pages 604-615 An Efficient Scalable Parallel View Maintenance Algorithm for Shared Nothing Multi-processor Machines....Pages 616-625 Using Back Propagation Algorithm and Genetic Algorithm to Train and Refine Neural Networks for Object Detection....Pages 626-635 An Adaptive, Maintainable, Extensible Process Agent....Pages 636-645 Metadata, a “Semantic” Approach....Pages 646-655 HEROS fw : A Framework for Heterogeneous Database Systems Integration....Pages 656-667 Resolving Ontological Heterogeneity in the KRAFT Project....Pages 668-677 Generation of Conceptual Wrappers for Legacy Databases....Pages 678-687 Design and Implementation of Linear Hash Algorithm in a Nested Transaction Environment....Pages 688-697 Supporting Partial Isolation in Flat Transactions....Pages 698-711 Using a Similarity Measurement to Partition a Vocabulary of Medical Concepts....Pages 712-723 A Study on Musical Features for Melody Databases....Pages 724-733 Using Multimedia in Aeronautical Technical Documentation....Pages 734-746 Invited Talk: Data Warehouse Design and Maintenance through View Normalizaiton....Pages 747-750 Cleansing Data for Mining and Warehousing....Pages 751-760 DROLAP - A Dense-Region Based Approach to On-Line Analytical Processing....Pages 761-770 Availability and Reliability Issues in Distributed Databases Using Optimal Horizontal Fragmentation....Pages 771-780 Object Clustering Methods and a Query Decomposition Strategy for Distributed Object-Based Information Systems....Pages 781-790 Dynamic Adjustment of Localized Constraints....Pages 791-801 Solent - A Platform for Distributed Open Hypermedia Applications....Pages 802-811 Concurrency Control for Global Transaction Management in MDBSs....Pages 812-821 Transactional Computation....Pages 822-831 Database Versions to Represent Bitemporal Databases....Pages 832-841 A Case Study in Information Delivery to Mass Retail Markets....Pages 842-851 Towards a Scalable System Architecture in Digital Libraries....Pages 852-861 MOSAIC: A Multi-feature Access Method for Large Image Databases....Pages 862-871 Enhancing Data Warehousing with Fuzzy Technology....Pages 872-881 Mining Several Databases with an Ensemble of Classifiers....Pages 882-891 WebTool: An Integrated Framework for Data Mining....Pages 892-901 Local and Federated Database Schemas Evolution. An Impact Propagation Model....Pages 902-911 Adaptive Caching Management for Multimedia Suppor....Pages 912-921 An Approach Towards Virtual Global Information Systems....Pages 922-931 Transaction Shipping Approach for Mobile Distributed Real-Time Databases....Pages 932-941 Distributed Global Transaction Support for Workflow Management Applications....Pages 942-951 Update Propagation of Replicated Data in Distributed Spatial Databases....Pages 952-963 Split Algorithms for Sets of High-Dimensional Objects....Pages 964-973 Spatio-Temporal Multimedia Presentations as Database Objects....Pages 974-985 WWW Bookmark Modeling and Visualization: A Fuzzy Based Approach....Pages 986-995 PTA - A Personal Translation Assistant for Accessing the World Wide Web....Pages 996-1005 Reasoning about Events with Imprecise Location and Multiple Granularities....Pages 1006-1017 Effective Temporal Aggregation Using Point-Based Trees....Pages 1018-1030 Temporal Indexing with Multidimensional File Structures....Pages 1031-1040 Communicating Time-Oriented, Skeletal Plans to Domain Experts Lucidly....Pages 1041-1051 More BANG for Your Buck: A Performance Comparison of BANG and R* Spatial Indexing....Pages 1052-1065 A High-Performance Spatial Storage System Based on Main-Memory Database Architecture....Pages 1066-1075 On the Feasibility of Website Refresh Queries....Pages 1076-1085 Building CyberBroker in Digital Marketplaces Using Java and CORBA....Pages 1086-1095 Experiments in Adaptable and Secure Multimedia Database Systems ( Invited Paper )....Pages 1096-1101

This book constitutes the refereed proceedings of the 10th International Conference on Database and Expert Systems Applications, DEXA'99, held in Florence, Italy in August/September 1999. The 105 revised papers presented together with three invited papers were carefully reviewed and selected from a total of 241 submissions. The volume addresses all current aspects of advanced information systems applications. The papers are organized in topical sections on object-oriented databases; fundamentals; queries; advanced information systems; workflow management systems; heterogeneous, distributed, and federated databases; transactions; data warehousing and data mining; spatial databases; internet applications; and temporal databases.