2191 search results - page 179 / 439 » Query Processing in the ROL system |
151
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SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
172
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CIKM
2010
Springer
15 years 2 months ago
2010
Springer
Search nodes are single-purpose components of large Web search engines and their efficient implementation is critical to sustain thousands of queries per second and guarantee indi...
163
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DEXA
2009
Springer
15 years 11 months ago
2009
Springer
Dimension hierarchies represent a substantial part of the data warehouse model. Indeed they allow decision makers to examine data at different levels of detail with On-Line Analyt...
132
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CLEF
2003
Springer
15 years 10 months ago
2003
Springer
: The basic line of our action is first to use natural language processing to prune the texts and the query, and secondly to use an ontology to expand the queries. Last year The sy...
234
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SIGMOD
2008
ACM
16 years 5 months ago
2008
ACM
We study the problem of querying relational data embedded in XML. Relational data can be represented by various tree structures in XML. However, current XML query methods, such as...