Database and Expert Systems Applications

1. Query Aspects II

   1. SQL/LPP: A Time Series Extension of SQL Based on Limited Patience Patterns

      • Chang-Shing Perng, D. Stott Parker

      Pages 218-227

   2. A Knowledge Based Approach for Modeling and Querying Multidimensional Databases

      • Zohra Bellahsene, Mohand-Saïd Hacid

      Pages 228-237

   3. An Incremental Hypercube Approach for Finding Best Matches for Vague Queries

      • Josef Küng, Jürgen Palkoska

      Pages 238-249

2. Fundamentals for Applications II

   1. Formalising Ontologies and Their Relations

      • Trevor Bench-Capon, Grant Malcolm

      Pages 250-259

   2. Is this Argument Justified, Overruled or Defensible?

      • Lambèr Royakkers

      Pages 260-269

   3. Addressing Efficiency Issues During the Process of Integrity Maintenance

      • Enric Mayol, Ernest Teniente

      Pages 270-281

3. Advanced Databases II

   1. Quality and Recommendation of Multi-Source Data for Assisting Technological Intelligence Applications

      • Laure Berti

      Pages 282-291

   2. Benchmarking Attribute Cardinality Maps for Database Systems Using the TPC-D Specifications

      • B. John Oommen, Murali Thiyagarajah

      Pages 292-301

   3. Using Self-organizing Maps to Organize Document Archives and to Characterize Subject Matters: How to Make a Map Tell the News of the World

      • Andreas Rauber, Dieter Merkl

      Pages 302-311

4. Object-Orientation III

   1. Combining C-signature with Path Dictionary for Query Processing of Nested Objects in OODBS

      • Hakgene Shin, Jaewoo Chang

      Pages 312-321

   2. A CORBA Object-based Caching with Consistency

      • Zahir Tari, Slimane Hammoudi, Stephen Wagner

      Pages 322-331

   3. From Object-Oriented Conceptual Modeling to Component-Based Development

      • Jaime Gómez, Oscar Pastor, Emilio Insfrán, Vicente Pelechano

      Pages 332-341

5. Query Aspects III

   1. Query Processing in Relationlog

      • Mengchi Liu

      Pages 342-351

   2. Rewriting Queries using Views

      • Sergio Flesca, Sergio Greco

      Pages 352-361

   3. A Query Subsumption Technique

      • S. M. Deen, Mohammad Al-Qasem

      Pages 362-371

6. Fundamentals for Applications III

   1. A Conference Key Multicasting Scheme Using Knapsack and Secret Sharing

      • Shiuh-Jeng Wang, Jin-Fu Chang

      Pages 372-381

   2. Verify Updating Trigger Correctness

      • Sin-Yeung Lee, Tok-Wang Ling

      Pages 382-391

   3. A Flexible Weighting Scheme for Multimedia Documents

      • Iadh Ounis

      Pages 392-404

7. Advanced Databases III

   1. A Fast Method for Ensuring the Consistency of Integrity Constraints

      • Barry G. T. Lowden, Jerome Robinson

      Pages 406-415

   2. A Mechanism for Deriving Specifications of Security Functions in the Common Criteria Framework

      • Jussipekka Leiwo

      Pages 416-425

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.

• data mining
• data warehouse
• databases
• distributed informations systems
• expert system
• expert systems
• information system
• intelligent information agents
• internet information systems
• object-oriented databases

• Department of Computer Science, University of Liverpool, Liverpool, UK

  Trevor J.M. Bench-Capon

• Department of Systems and Computers, University of Florence, Florence, Italy

  Giovanni Soda

• IFS, Technical University of Vienna, Vienna, Austria

  A Min Tjoa

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