2853 search results - page 149 / 571 » On the Efficiency of Provenance Queries |
159
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PODS
2002
ACM
16 years 6 months ago
2002
ACM
We study two classes of view update problems in relational databases. We are given a source database S, a monotone query Q, and the view Q(S) generated by the query. The first pro...
182
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DILS
2005
Springer
16 years 6 hour ago
2005
Springer
For execution of complex biological queries, data integration systems often use several intermediate data sources because the domain coverage of individual sources is limited. Qual...
151
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IEEEMSP
2002
IEEE
15 years 11 months ago
2002
IEEE
Music query-by-humming is a challenging problem since the humming query inevitably contains much variation and inaccuracy. Many of the previous methods, which adopt note segmentat...
288
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...
183
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
Many applications in analytical domains often have the need to "connect the dots" i.e., query about the structure of data. In bioinformatics for example, it is typical t...