Sciweavers

3777 search results - page 282 / 756
» Estimating the Quality of Databases
Sort
View
VLDB
2005
ACM
113views Database» more  VLDB 2005»
16 years 6 months ago
Mediators over taxonomy-based information sources
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...
Yannis Tzitzikas, Nicolas Spyratos, Panos Constant...
VLDB
2007
ACM
136views Database» more  VLDB 2007»
16 years 6 months ago
A STEP Towards Realizing Codd's Vision of Rendezvous with the Casual User
This demonstration showcases the STEP system for natural language access to relational databases. In STEP an administrator authors a highly structured semantic grammar through cou...
Michael Minock
SIGMOD
2007
ACM
183views Database» more  SIGMOD 2007»
16 years 6 months ago
Leveraging aggregate constraints for deduplication
We show that aggregate constraints (as opposed to pairwise constraints) that often arise when integrating multiple sources of data, can be leveraged to enhance the quality of dedu...
Surajit Chaudhuri, Anish Das Sarma, Venkatesh Gant...
224
Voted
SIGMOD
2001
ACM
229views Database» more  SIGMOD 2001»
16 years 6 months ago
A Robust, Optimization-Based Approach for Approximate Answering of Aggregate Queries
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
Surajit Chaudhuri, Gautam Das, Vivek R. Narasayya
IAT
2006
IEEE
16 years 21 days 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...