Monday, 3 September 2007

9.00 – 9.30 Opening
Il-Yeol Song & Johann Eder

Session 1: Data Warehouse Architecture
9:30 - 11:00
Chair: Il-Yeol Song

A Hilbert Space compression architecture for data warehouse environments
Todd Eavis, David Cueva

Evolution of data warehouses' optimization: a workload perspective
Cécile Favre, Fadila Bentayeb, Omar Boussaid

What-if Analysis for Data Warehouse Evolution
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou

11:00 - 11:30: Coffee Break

11:30 - 12:30: DEXA Keynote 1

12:30 - 14:00: Lunch

Session 2: Data Warehouse Quality
14:00 - 15:30
Chair: Todd Eavis

An Extensible Metadata Framework for Data Quality Assessment of Composite Structures
José Farinha, Maria José Trigueiros

On the Need of a Reference Algebra for OLAP
Oscar Romero, Alberto Abelló

A Dynamic View Materialization Scheme for Sequences of Query and Update Statements
Wugang Xu, Dimitri Theodoratos, Calisto Zuzarte

15:30 - 16:00: Coffee Break

Session 3 Multidimensional Database
16:00 - 17:30
Chair: Johann Eder

Spatio-Temporal Aggregations in Trajectory Data Warehouses
Salvatore Orlando, Renzo Orsini, Alessandra Raffaeta`, Alessandro Roncato, Claudio Silvestri

Computing Join Aggregates Over Private Tables
Rong She, Ke Wang, Ada Waichee Fu, Yabo Xu

An Annotation Management System for Multidimensional Databases
Guillaume Cabanac, Max Chevalier, Franck Ravat, Olivier Teste

Tuesday, 4 September 2007

Session 4 Data Warehouse & OLAP
9:00 - 11:00
Chair: Salvatore Orlando

OLAP Technology for Business Process Intelligence: Challenges and Solutions
Svetlana Mansmann, Thomas Neumuth, Marc H. Scholl

Automating the Schema Matching Process for Heterogeneous Data Warehouses
Marko Banek, Boris Vrdoljak, A Min Tjoa, Zoran Skocir

Built-in indicators to automatically detect interesting cells in a cube
Véronique Cariou, Jérôme Cubillé, Christian Derquenne, Sabine Goutier, Françoise Guisnel, Henri Klajnmic

Emerging Cubes for Trends Analysis in OLAP Databases
Sebastien Nedjar, Alain Casali, Rosine Cicchetti, Lotfi Lakhal

11:00 - 11:30: Coffee Break

11:30 - 12:30: DEXA Keynote 2

12:30 - 14:00: Lunch

Session 5: Query Optimazation
14:00 - 15:30
Chair: Alfredo Cuzzocrea

Domination Mining and Querying
Apostolos Papadopoulos, Apostolos Lyritsis, Alexandros Nanopoulos, Yannis Manolopoulos

Semantic knowledge integration to support inductive query optimization
Nittaya Kerdprasop, Kittisak Kerdprasop

A Clustered Dwarf Structure to Speed Up Queries on Data Cubes
Fangling Leng, Yubin Bao, Daling Wang, Ge Yu

15:30 - 16:00: Coffee Break

Session 6: Data Warehousing & Data Mining
16:00 - 18:00
Chair: Zoran Skocir

An OLAM-based Framework for Complex Knowledge Pattern Discovery in Distributed-and-Heterogeneous-Data-Sources and Cooperative Information Systems
Alfredo Cuzzocrea

Integrating Clustering Data Mining into the Multidimensional Modeling of Data Warehouses with UML Profiles
Jose Zubcoff, Jesús Pardillo, Juan Trujillo, Juan Trujillo

A UML Profile for Representing Business Object States in a Data Warehouse
Veronika Stefanov, Beate List

Selection and Pruning Algorithms for Bitmap Index Selection Problem using Data Mining
Ladjel Bellatreche, Rokia Missaoui, Hamid Necir, Habiba Drias

Wednesday, 5 September 2007

Session 7: Clustering
9:00 - 11:00
Chair: Rodrigo Monteiro

MOSAIC: A Proximity Graph Approach for Agglomerative Clustering
Jiyeon Choo, Rachsuda Jiamthapthaksin, Chunsheng Chen, Oner U. Celepcikay, Christian Giusti, Christoph F. Eick

A Hybrid Particle Swarm Optimization Algorithm for Clustering Analysis
Yannis Marinakis, Magdalene Marinaki, Nikolaos Matsatsinis

Clustering Transactions with an Unbalanced Hierarchical Product Structure
MinTzu Wang, PingYu Hsu, K.C. Lin, ShiuannShuoh Chen

Constrained graph b-coloring based Clustering Approach
Haytham Elghazel, Khalid Benabdeslem, Alain Dussauchoy

11:00 - 11:30: Coffee Break

11:30 - 12:30: DEXA Keynote 3

12:30 - 14:00: Lunch

Session 8: Association Rules
14:00 - 15:30
Chair: Estevem Hruschka

An Efficient Algorithm for Identifying the Most Contributory Substring
Ben Stephenson

Mining High Utility Quantitative Association Rules
Show-Jane Yen, Yue-SHi Lee

Extraction of association rules based on litteralsets
Ghada Gasmi, Sadok Ben Yahia, Engelbert Mephu Nguifo, Slim Bouker

15:30 - 16:00: Coffee Break

Session 9: Healthcare & Biomedical applications
16:00 - 17:30
Chair: Tho Manh Nguyen

Cost-sensitive decision trees applied to medical data
Alberto Freitas

Utilization of Global Ranking Information in Graph-based Biomedical Literature Clustering
Xiaodan Zhang, Xiaohua Hu, Jiali Xia, Xiaohua Zhou, Palakorn Achananuparp

Ontology-based Information Extraction and Information Retrieval in Health Care Domain
Tran Quoc Dung, Kameyama Wataru

Thursday, 6 September 2007

Session 10: Classification
9:00 - 11:00
Chair: Holger Schwarz

Fuzzy Classifier Based Feature Reduction for Better Gene Selection
Reda Alhajj

Two Way Focused Classification
Manoranjan Dash, Vivekanand Gopalkrishnan

A Markov Blanket based strategy to optimize the induction of Bayesian Classifiers when using Conditional Independence Algoritms
Sebastian Galvão, Estevam Hruschka Jr.

Learning of Semantic Sibling Group Hierarchies-K-Means vs. Bi-Secting-K-Means
Marko Brunzel

11:00 - 11:30: Coffee Break

11:30 - 12:30: DEXA Keynote 4

12:30 - 14:00: Lunch

Session 11: Partitioning
14:00 - 15:30
Chair: Manoranjan Dash

Mining Top-K Multidimensional Gradients
Ronnie Alves, Orlando Belo, Joel Ribeiro

A Novel Similarity-based Modularity Function for Graph Partitioning
Xiaowei Xu, Zhidan Feng, Nurcan Yuruk, Thomas Schweiger

Dual Dimensionality Reduction for Efficient Video Similarity Search
Zi Huang, Hengtao Shen, Xiaofang Zhou, Jie Shao

15:30 - 16:00: Coffee Break

Session 12: Privacy & Crytography
16:00 - 17:30
Chair: Marko Brunzel

Privacy-Preserving Genetic Algorithms for Rule Discovery
Shuguo Han, Wee Keong Ng

Fast Cryptographic Multi-Party Protocols for Computing Boolean Scalar Products with Applications to Privacy-Preserving Association Rule Mining in Vertically Partitioned Data
Dragos Trinca, Sanguthevar Rajasekaran

Privacy-Preserving Self-Organizing Map
Shuguo Han, Wee Keong Ng

Friday, 7 September 2007

Session 13: Miscalleneous Knowledge Discovery Techniques
9:00 - 11:00
Chair: Thomas Schweiger

DWFIST: Leveraging Calendar-based Pattern Mining in Data Streams
Rodrigo Monteiro, Geraldo Zimbrão, Holger Schwarz, Bernhard Mitschang, Jano Souza

Expectation Propagation in GenSpace Graphs for Summarization
Liqiang Geng, Howard Hamilton

Mining First Order Temporal Interval Patterns with Regular Expression Constraints
Sandra de Amo, Arnaud Giacometti, Waldecir Pereira Junior

Mining Trajectory Patterns Using Hidden Markov Models
Hoyoung Jeung, Heng Tao Shen, Xiaofang Zhou

11:00 - 11:30: Coffee Break

11:30 - 12:30: DEXA Keynote 5