757 search results - page 78 / 152 » Topical query decomposition |
140
Voted
CORR
2010
Springer
15 years 1 months ago
2010
Springer
We have compared the performance of five non-commercial triple stores, Virtuoso-open source, Jena SDB, Jena TDB, SWIFT-OWLIM and 4Store. We examined three performance aspects: the ...
230
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
128
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
161
Voted
INFOCOM
2011
IEEE
14 years 7 months ago
2011
IEEE
—Top-k query has long been an important topic in many fields of computer science. Efficient implementation of the top-k queries is the key for information searching. With the n...
112
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VLDB
1990
ACM
15 years 8 months ago
1990
ACM
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...