8311 search results - page 1446 / 1663 » Phase-Based Information Retrieval |
232
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
This paper addresses the efficient processing of similarity queries in metric spaces, where data is horizontally distributed across a P2P network. The proposed approach does not r...
228
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VLDB
2008
ACM
16 years 4 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
222
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VLDB
2009
ACM
16 years 4 months ago
2009
ACM
Top-k queries on large multi-attribute data sets are fundamental operations in information retrieval and ranking applications. In this article, we initiate research on the anytime ...
196
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
Large collections of documents are commonly created around a database, where a typical database schema may contain hundreds of tables and thousands of columns. We developed a syst...
237
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
A large number of online databases are hidden behind the web. Users to these systems can form queries through web forms to retrieve a small sample of the database. Sampling such h...