The 14th DEXA 2003 International Conference on Database and Expert - stems Applications was held during September 1-5, 2003 at the Czech Technical UniversityinPrague,CzechRepublic.TheDEXAlineofconferenceshasalready gained its own reputation and respected position as a platform for the exchange of ideas among theoreticians and practitioners in the wider area of computer science, but mainly in the areas of database and knowledge-based technologies. Since DEXA 1993, which was held in Prague, DEXA has grown into a m- ticonference consisting of four more focused and specialized conferences besides DEXA itself, namely the DaWak conference, EC-Web conference, eGOV c- ference, and this year happening for the ?rst time, the HoloMAS conference. In addition, the DEXA workshop is a special event o?ering enough space for specialized discussion, and acting - in a certain sense - as an incubator for new conferences. The DEXA conference itself is growing in volume and quality each year. This time there were 236 papers submitted and reviewed and the program committee selected 91 of the best papers to be included in this volume. Each of the subm- ted papers was carefully reviewed by at least three independent PC members or external reviewers. The DEXA proceedings quite clearly re?ect the current trends in the da- base area and we are happy with the balanced content of both the conference and the proceedings.
Inhalt
Invited Talk.- Policy Based Enterprise (Active) Information Integration.- XML I.- SOFT - Generating Highly Flexible Object Code from XML Specifications.- Querying Semistructured Data Efficiently.- On the Optimality of Holistic Algorithms for Twig Queries.- AUSMS: An Environment for Frequent Sub-structures Extraction in a Semi-structured Object Collection.- Data Modeling.- Defining Web Schema Transformers by Example.- A Conceptual Framework for Spatiotemporal Data Modeling.- Moa and the Multi-model Architecture: A New Perspective on NF2.- Entity Connectivity vs. Hierarchical Levelling as a Basis for Data Model Clustering: An Experimental Analysis.- XML II.- An XML-Enabled Association Rule Framework.- Validation of XML Document Updates Based on XML Schema in XML Databases.- XML Schemata Inference and Evolution.- Spatial Database Systems I.- Bulk Loading the MKL-Tree.- Bulk Insertion for R-Tree by Seeded Clustering.- Optimizing Both Cache and Disk Performance of R-Trees.- XML III.- XML Views: Part 1.- Partition Based Path Join Algorithms for XML Data.- Representing and Querying Summarized XML Data.- Storing and Querying XML Data in the Nested Relational Sequence Database System.- Spatial Database Systems II.- Capturing Uncertainty in Spatial Queries over Imprecise Data.- Effective Load-Balancing via Migration and Replication in Spatial Grids.- Parallel Query Support for Multidimensional Data: Intra-object Parallelism.- Replicated Parallel I/O without Additional Scheduling Costs.- XML IV.- XML Restructuring and Integration for Tabular Data.- Repairing Inconsistent Merged XML Data.- XML and Knowledge Technologies for Semantic-Based Indexing of Paper Documents.- Efficient Re-construction of Document Versions Based on Adaptive Forward and Backward Change Deltas.- Mobile Computing I.- Neighborhood-Consistent Transaction Management for Pervasive Computing Environments.- On Mining Group Patterns of Mobile Users.- Location Query Based on Moving Behaviors.- Dynamic Splitting Policies of the Adaptive 3DR-Tree for Indexing Continuously Moving Objects.- Transactions.- Comparing the Overhead Requirements of Database Transaction Models.- Concurrent and Real-Time Update of Access Control Policies.- Transactional Agent Model for Distributed Object Systems.- Mobile Computing II.- Incremental Query Answering Using a Multi-layered Database Model in a Mobile Computing Environment.- Environmental Noise Classification for Context-Aware Applications.- An Access Time Cost Model for Spatial Range Queries on Broadcast Geographical Data over Air.- Bioinformatics.- Context-Aware Data Mining Framework for Wireless Medical Application.- Data Management in Metaboloinformatics: Issues and Challenges.- Mining the Risk Types of Human Papillomavirus (HPV) by AdaCost.- Protein Structural Information Management Based on Spatial Concepts and Active Trigger Rules.- Mobile Computing III.- Asomnia: AService-Oriented Middleware for Ambient Information Access.- An Efficient Tree-Structure Index Allocation Method over Multiple Broadcast Channels in Mobile Environments.- DSTTMOD: A Future Trajectory Based Moving Objects Database.- Adaptive Peer-to-Peer Routing with Proximity.- Information Retrieval I.- g-binary: A New Non-parameterized Code for Improved Inverted File Compression.- Activation on the Move: Querying Tourism Information via Spreading Activation.- Similarity Join in Metric Spaces Using eD-Index.- KeyQuery - A Front End for the Automatic Translation of Keywords into Structured Queries.- Information Retrieval II.- Supporting KDD Applications by the k-Nearest Neighbor Join.- Approximate Query Processing for a Content-Based Image Retrieval Method.- Query Algebra Operations for Interval Probabilities.- Information Retrieval III.- Tree Structure Based Parallel Frequent Pattern Mining on PC Cluster.- WebObjects: A New Approach for Querying the Web.- Finding Neighbor Communities in the Web Using Inter-site Graph.- A Lesson for Software Engineering from Knowledge Engineering.- Multimedia Database Systems.- Image Retrieval by Web Context: Filling the Gap between Image Keywords and Usage Keywords.- Query-by-Humming on Internet.- Efficient Indexing of High Dimensional Normalized Histograms.- Implementation of a Stream-Oriented Retrieval Engine for Complex Similarity Queries on Top of an ORDBMS.- Web Applications.- GFIS Pro - A Tool for Managing Forest Information Resources.- FDRAS: Fashion Design Recommender Agent System Using the Extraction of Representative Sensibility and the Two-Way Combined Filtering on Textile.- Ontologies I.- An Explanation-Based Ranking Approach for Ontology-Based Querying.- Visual Querying with Ontologies for Distributed Statistical Databases.- Object-Oriented Database Systems I.- DOEF: A Dynamic Object Evaluation Framework.- Object Oriented Mechanisms to Rewriting Queries Using Views.- TVL_SE - Temporal and Versioning Language for Schema Evolution in Object-Oriented Databases.- Ontologies II.- Building Conceptual Schemas by Refining General Ontologies.- Semantics for Interoperability.- Object-Oriented Database Systems II.- Multiple Views with Multiple Behaviours for Interoperable Object-Oriented Database Systems.- Integrating Association Rule Mining Algorithms with the F2 OODBMS.- Query Optimization I.- Using User Access Patterns for Semantic Query Caching.- Exploiting Similarity of Subqueries for Complex Query Optimization.- Workflow I.- Process Data Store: A Real-Time Data Store for Monitoring Business Processes.- Integrated Workflow Planning and Coordination.- Query Optimization II.- Block Optimization in the Teradata RDBMS.- Selecting Topics for Web Resource Discovery: Efficiency Issues in a Database Approach.- Integrating Quality of Service into Database Systems.- Workflow II.- Handling Dynamic Changes in Decentralized Workflow Execution Environments.- A QoS Oriented Framework for Adaptive Management of Web Service Based Workflows.- Discovering Role-Relevant Process-Views for Recommending Workflow Information.- Knowledge Engineering I.- Termination Analysis of Active Rules with Priorities.- A Toolkit and Methodology to Support the Collaborative Development and Reuse of Engineering Models.- Security I.- Secure Interoperability between Cooperating XML Systems by Dynamic Role Translation.- A Flexible Database Security System Using Multiple Access Control Policies.- Designing Secure Databases for OLS.- Knowledge Engineering II.- CAML - A Universal Configuration Language for Dialogue Systems.- NLC: A Measure Based on Projections.- Security II.- Decentralized Tem…