610 search results - page 78 / 122 » Efficient Query Evaluation on Probabilistic Databases |
SIGMOD
2002
ACM
15 years 10 months ago
2002
ACM
Recent work has demonstrated the effectiveness of the wavelet decomposition in reducing large amounts of data to compact sets of wavelet coefficients (termed "wavelet synopse...
169
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
We study new hierarchical indexing approach to process XPATH queries. Here, a hierarchical index consists of index entries that are pairs of queries and their (full/partial) answer...
177
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
Text is ubiquitous and, not surprisingly, many important applications rely on textual data for a variety of tasks. As a notable example, information extraction applications derive...
ICDT
2010
ACM
15 years 7 months ago
2010
ACM
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
PVLDB
2008
14 years 9 months ago
2008
The backend database system is often the performance bottleneck when running web applications. A common approach to scale the database component is query result caching, but it fa...