58 search results - page 6 / 12 » Query Decomposition for a Distributed Object-Oriented Mediat... |
BDA
2007
13 years 9 months ago
2007
We consider a distributed information system that allows autonomous consumers to query autonomous providers. We focus on the problem of query allocation from a new point of view, ...
AIPS
1998
13 years 9 months ago
1998
We present the application of the Planning by Rewriting PbR framework to query planning in distributed and heterogeneous environments. PbR is a new paradigm for e cient high-quali...
IADIS
2003
13 years 9 months ago
2003
Avionics data at the National Aeronautics and Space Administration’s (NASA) Jet Propulsion Laboratory (JPL) consists of distributed, unmanaged, and heterogeneous information tha...
DEXA
2004
Springer
14 years 1 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...
KRDB
1998
13 years 9 months ago
1998
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...