1300 search results - page 244 / 260 » XML Query Processing and Optimization |
125
Voted
SSDBM
2010
IEEE
14 years 11 months ago
2010
IEEE
Graphs are prevailingly used in many applications to model complex data structures. In this paper, we study the problem of supergraph containment search. To avoid the NP-complete s...
126
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EDBT
2008
ACM
16 years 1 months ago
2008
ACM
There has been much recent interest in on-line data mining. Existing mining algorithms designed for stored data are either not applicable or not effective on data streams, where r...
111
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VLDB
1997
ACM
15 years 5 months ago
1997
ACM
Query optimizers that explore a search space exhaustively using transformation rules usually apply all possible rules on each alternative, and stop when no new information is prod...
136
Voted
ICS
2009
Tsinghua U.
15 years 8 months ago
2009
Tsinghua U.
Matching regular expressions (regexps) is a very common workload. For example, tokenization, which consists of recognizing words or keywords in a character stream, appears in ever...
144
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SIGIR
2011
ACM
14 years 4 months ago
2011
ACM
A key challenge in recommender system research is how to effectively profile new users, a problem generally known as cold-start recommendation. Recently the idea of progressivel...