9683 search results - page 576 / 1937 » Predicting query performance |
156
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SIGIR
2006
ACM
16 years 1 months ago
2006
ACM
We hypothesized that language modeling retrieval would improve if we reduced the need for document smoothing to provide an inverse document frequency (IDF) like effect. We create...
175
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AICCSA
2005
IEEE
16 years 26 days ago
2005
IEEE
Data Stream Management Systems are being developed to process continuous queries over multiple data streams. These continuous queries are typically used for monitoring purposes wh...
182
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CIKM
2005
Springer
16 years 23 days ago
2005
Springer
This paper shows a scheme for incremental evaluation of XPath queries. Here, we focus on a monotone fragment of XPath, i.e., when a data is deleted from (or inserted to) the datab...
192
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DEXA
2005
Springer
16 years 23 days ago
2005
Springer
Computing aggregates over distributed data sets constitutes an interesting class of distributed queries. Recent advances in peer-to-peer discovery of data sources and query process...
191
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VLDB
1998
ACM
15 years 11 months ago
1998
ACM
The query execution engine in Microsoft SQL Server employs hash-based algorithms for inner and outer joins, semi-joins, set operations (such as intersection), grouping, and duplic...