413 search results - page 2 / 83 » Optimizing Queries Across Diverse Data Sources |
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
This paper focuses on the problem of improving distributed query throughput of the RDBMS-based data integration system that has to inherit the query execution model of the underly...
DEXA
2004
Springer
13 years 10 months ago
2004
Springer
Data integration is a significant challenge: relevant data objects are split across multiple information sources, and often owned by different organizations. The sources represent...
WSDM
2012
ACM
12 years 1 months ago
2012
ACM
Most standard information retrieval models use a single source of information (e.g., the retrieval corpus) for query formulation tasks such as term and phrase weighting and query ...
ICDT
1999
ACM
13 years 9 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
AAAI
1998
13 years 6 months ago
1998
We present an approach for optimizing the performance of information agents by materializing useful information . A critical problem with information agents, particularly those ga...