DEXA 2005 Copenhagen Pictures

DaWaK Program

Monday, 22 August 2005

9.00 - 9.30 Opening of DEXA 2005
Chair: A Min Tjoa

Welcome address: Finn Junge Jensen, President, Copenhagen Business School

"Visions of Science, Technology and Innovation in Denmark"
Helge Sander, Minister for Science, Technology and Innovation

Welcome of DEXA:
A Min Tjoa, Vice President of the DEXA Association, TU Vienna, Austria

9.30 - 10.00

Danish E-Government Developments
Mikkel Hemmingsen, Ministry of Science, Technology and Innovation, Denmark

10.00 - 10.30 Coffee Break

Session 1: Data Warehouse I
10.30 - 12.30 Chair: A Min Tjoa, Austria

A Tree Comparison Approach to Detect Changes in Data Warehouse Structures
Johann Eder, Christian Koncilia, Karl Wiggisser

Extending the UML for designing Association Rule Mining Models for Data Warehouses
Jose Jacobo Zubcoff Vallejo, Juan Carlos Trujillo Mondejar

Event-feeded Dimension Solution
Tho Manh Nguyen, Jaromir Nemec, Martin Windisch

XML-OLAP: A Multidimensional Analysis Framework for XML Warehouses
Byung-Kwon Park, Hyoil Han, Il-Yeol Song

12.30 - 14.00 Lunch

Session 2: Data Warehouse II
14.00 - 15.30 Chair: Juan Carlos Trujillo Mondejar, Spain

Graph-Based Modeling of ETL activities with Multi-level Transformations and Updates
Alkis Simitsis, Panos Vassiliadis, Manolis Terrovitis, Spiros Skiadopoulos

Extending UML 2 Activity Diagrams with Business Intelligence Objects
Veronika Stefanov, Beate List, Birgit Korherr

Automatic Selection of Bitmap Join Indexes in Data Warehouses
Kamel Aouiche, Jérôme Darmont, Omar Boussaid, Fadila Bentayeb

15.30 - 16.00 Coffee Break

Session 3: Evaluating Data Warehouses and Tools
16.00 - 18.00 Chair: Il-Yeol Song, USA

A Survey of Open Source Tools for Business Intelligence
Christian Thomsen, Torben Bach Pedersen

DWEB: A Data Warehouse Engineering Benchmark
Jerome Darmont, Fadila Bentayeb, Omar Boussaid

A set of quality indicators and their corresponding quality metrics for conceptual models for Data Warehouses
Gema Berenguer, Juan Trujillo, Manuel Serrano, Mario Piattini

Ad-hoc star join processing in Clusters of SMP
Josep Aguilar-Saborit, Victor Muntes-Mulero, Josep-L. Larriba-Pey, Calisto Zuzarte

Tuesday, 23 August 2005

Keynote EC-Web Conference
9.00 - 10.00

IT does matter - innovation, strategy and organization
Stefan Klein; University of Muenster, Germany

10.00 - 10.30 Coffee Break

Session 4: Schema Transformations
10.30 - 12.30 Chair: Tho Manh Nguyen, Austria

An Evolutionary Approach to Schema Partitioning Selection in a Data Warehouse Environment
Ladjel Bellatreche, Kamel Boukhalfa, Mukesh Mohania

Using Schema Transformation Pathways for Incremental View Maintenance
Hao Fan

Data Mapper: An operator for expressing one-to-many instance transformations
Paulo Carreira, Helena Galhardas, Antónia Lopes, João Pereira

12.30 - 14.00 Lunch

Session 5: Materialized Views
14.00 - 15.30 Chair: Ladjel Bellatreche, France

Parallel Consistency Maintenance of Materialized Views Using Referential Integrity Constraints in Data Warehouses
Jinho Kim, Byung-Suk Lee, Yang-Sae Moon, Soo-Ho Ok, Woo-Key Lee

Selective View Materialization in a Spatial Data Warehouse
Songmei Yu, Vijay Atluri, Nabil Adam

Select Materialized Cells In Data Cubes
Hongsong Li, Houkuan Huang

15.30 - 16.00 Coffee Break

Session 6: Aggregates
16.00 - 17.00 Chair: Tatsuo Tsuji, Japan

Progressive Ranking of Range Aggregates
Hua-Gang Li, Hailing Yu, Divyakant Agrawal, Amr El Abbadi

On Efficient Storing and Processing of Long Aggregate Lists
Marcin Gorawski, Rafal Malczok

Wednesday, 24 August 2005

9.00 - 10.00

Design for All in Information Technology: whose problem is it?

Jenny Darzentas, University of the Aegean, Syros, Greece

10.00 - 10.30 Coffee Break

Session 7: Data Warehouse Queries and Database Processing Issues
10.30 - 12.30 Chair: Juan Carlos Trujillo Mondejar, Spain

Design and Development of a Tool for Integrating Heterogeneous Data Warehouses
Riccardo Torlone, Ivan Panella

A Precise Blocking Method for Record Linkage
Patrick Lehti, Peter Fankhauser

Flexible Query Answering in Data Cubes
Sami Naouali, Rokia Missaoui

An Extendible Array Based Implementation of Relational Tables for Multidimensional Databases
K. M. Azharul Hasan, Masayuki. Kuroda, Naoki.Azuma, Tatsuo Tsuji, Ken Higuchi

12.30 - 14.00 Lunch

Session 8: Data Mining Algorithms and Techniques
14.00 - 15.30 Chair: Reda Alhajj, Canada

Nearest Neighbor Search on Vertically Partitioned High-Dimensional Data
Evangelos Dellis, Bernhard Seeger, Akrivi Vlachou

A Machine Learning Approach to Identify Database Sessions Using Unlabeled Data
Qingsong Yao, Jimmy Huang, Aijun An

Hybrid System of Case-Based Reasoning and Neural Network for Symbolic Features
Kwang Hyuk Im, Tae Hyun Kim, Sang Chan Park

15.30 - 16.00 Coffee Break

Session 9: Data Mining
16.00 - 18.00 Chair: Jimmy Huang, Canada

Spatio-Temporal Rule Mining: Issues and Techniques
Gyozo Gidofalvi, Torben Bach Pedersen

Hybrid Approach to Web Content Outlier Mining Without Query Vector
Malik Agyemang, Ken Barker, Reda Alhajj

Incremental Data Mining Using Concurrent On-line Refresh of Materialized Data Mining Views
Mikolaj Morzy, Tadeusz Morzy, Marek Wojciechowski, Maciej Zakrzewicz

Decremental Algorithm for Mining Dynamic Databases
Shichao Zhang, Xindong Wu

Thursday, 25 August 2005

9.00 - 10.00

Foundations for Automated Trading --- Its the Information that Matters
John Debenham, University of Technology, Sydney

10.00 - 10.30 Coffee Break

Session 10: Association Rules
10.30 - 12.30 Chair: Jose Jacobo Zubcoff Vallejo, Spain

Discovering Richer Temporal Association Rules from Interval-based Data
Edi Winarko, John F. Roddick

Semantic query expansion combining association rules with ontologies and Information Retrieval techniques
Min Song, Il-Yeol Song, Xiaohua Hu, Robert Allen

Maintenance of Generalized Association Rules under Transaction Update and Taxonomy Evolution
Ming-Cheng Tseng, Wen-Yang Lin, Rong Jeng

Prince : Optimized extraction of generic rule bases without closure computations
Tarek Hamrouni, Sadok Ben Yahia, Yahya Slimani

12.30 - 14.00 Lunch

Session 11: Text Processing and Classification
14.00 - 15.30 Chair: Mikolaj Morzy, Poland

Efficient compression of text attributes of data warehouse dimensions
Henrique Madeira, Jorge Vieira, Jorge Bernardino, Henrique Madeira

Effectiveness of Document Representation for Classification
Ding-Yi Chen, Xue Li, Zhao Yang Dong, Xia Chen

2-PS Based Associative Text Classification
Tieyun Qian, Yuanzhen Wang, Hao Long, Jianlin Feng

15.30 - 16.00 Coffee Break

Session 12: Miscellanenous Applications
16.00 - 17.00 Chair: Tho Manh Nguyen, Austria

Intrusion Detection via Analysis and Modelling of User Commands
Matthew Gebski, Raymond Wong

A Dynamic Schema Navigation using Formal Concept Analysis
Jon Ducrou, Bastian Wormuth, Peter Eklund

Friday, 26 August 2005

Session 13: Security and Privacy Issues
9.00 - 10.00 Chair: Marek Wojciechowski, Poland

FMC: An Approach for Privacy-preserving OLAP
Ming Hua, Wei Wang, Shouzhi Zhang, Baile Shi

Information Driven Evaluation of Data Hiding Algorithms
Elisa Bertino, Igor Nai Fovino

10.00 - 10.30 Coffee break

Session 14: Patterns
10.30 - 12.30 Chair: Sang Chan Park, Korea

Optimizing a sequence of frequent pattern queries
Mikolaj Morzy, Marek Wojciechowski, Maciej Zakrzewicz

Essential Patterns: A Perfect Cover of Frequent Patterns
Casali Alain, Cicchetti Rosine, Lakhal Lotfi

Processing Sequential Patterns in Relational Databases
Xuequn Shang , Kai-Uwe Sattler

A general effective framework for monotony and tough constraint based sequential pattern mining
Enhong Chen, Tongshu Li, Phillip C-y SHEU

12.30 - 14.00 Lunch

Session 15: Cluster and Classification I
14.00 - 15.30 Chair: Alexander Schatten, Austria

Spectral Kernels for Classification
Wenyuan Li, Kok-Leong Ong, Wee-Keong Ng, Aixin Sun

Hiding Classification Rules for Data Sharing with Privacy Preservation
Juggapong Natwichai, Xue Li, Maria Orlowska

Clustering-based histograms for multi-dimensional data
Filippo Furfaro, Giuseppe M. Mazzeo, Cristina Sirangelo

15.30 - 16.00 Coffee Break

Session 16: Cluster and Classification II
16.00 - 17.30 Chair: Ricardo Torlone, Italy

A New Approach for Cluster Detection for Large Datasets with High Dimensionality
Matthew Gebski, Raymond Wong

Gene Expression Biclustering using Random Walk Strategies
Angiulli Fabrizio, Pizzuti Clara

Weighted K-Means for Density-Biased Clustering
Kittisak Kerdprasop, Nittaya Kerdprasop, Pirote Sattayadham