8491 search results - page 1321 / 1699 » Forecasting in Database Systems |
181
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PPAM
2005
Springer
16 years 7 days ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
196
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SDMW
2005
Springer
16 years 7 days ago
2005
Springer
In this paper we present our authorization framework that supports the dynamic set-up of Web service federations for sharing data within virtual federations. Building on previous w...
185
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WEBDB
2005
Springer
16 years 7 days ago
2005
Springer
Current peer-to-peer (p2p) full-text keyword search techniques fall into the following categories: document-based partitioning, keyword-based partitioning, hybrid indexing, and se...
163
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DEXA
2004
Springer
16 years 5 days 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...
155
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ECAI
2004
Springer
16 years 5 days ago
2004
Springer
The problem of integrating relevant information obtained from multiple heterogeneous sources is a complex task, with which biologists are now faced. In this paper, we address the p...