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ER
1998
Springer
88views Database» more  ER 1998»
14 years 2 months ago
Numerical Aspects in the Data Model of Conceptual Information Systems
Abstract. While most data analysis and decision support tools use numerical aspects of the data, Conceptual Information Systems focus on their conceptual structure. This paper disc...
Gerd Stumme, Karl Erich Wolff
VLDB
2005
ACM
120views Database» more  VLDB 2005»
14 years 3 months ago
Efficiently Processing Queries on Interval-and-Value Tuples in Relational Databases
With the increasing occurrence of temporal and spatial data in present-day database applications, the interval data type is adopted by more and more database systems. For an effic...
Jost Enderle, Nicole Schneider, Thomas Seidl
IAT
2006
IEEE
14 years 4 months ago
On the Design of a Web-Based Decision Support System for Brain Tumour Diagnosis Using Distributed Agents
This paper introduces HealthAgents, an EC-funded research project to improve the classification of brain tumours through multi-agent decision support over a distributed network o...
Carles Arús, Bernardo Celda, Srinandan Dasm...
ADC
2003
Springer
182views Database» more  ADC 2003»
14 years 3 months ago
CT-ITL : Efficient Frequent Item Set Mining Using a Compressed Prefix Tree with Pattern Growth
Discovering association rules that identify relationships among sets of items is an important problem in data mining. Finding frequent item sets is computationally the most expens...
Yudho Giri Sucahyo, Raj P. Gopalan
DEXA
1995
Springer
125views Database» more  DEXA 1995»
14 years 1 months ago
An SQL Extension Supporting User Viewpoints
- In order to accomplish independence on the logical data organization, a relational DBMS must be capable of interpreting query language sentences which reference attributes belong...
Giuseppe Bellavia, Dario Maio, Stefano Rizzi