2217 search results - page 63 / 444 » Rank-aware Query Optimization |
238
Voted
ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
139
click to vote
DASFAA
2006
IEEE
15 years 8 months ago
2006
IEEE
Abstract. In emerging data stream applications, data sources are typically distributed. Evaluating multi-join queries over streams from different sources may incur large communica...
134
Voted
STOC
2009
ACM
16 years 3 months ago
2009
ACM
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
132
click to vote
IPPS
2007
IEEE
15 years 8 months ago
2007
IEEE
We study efficient query processing in distributed web search engines with global index organization. The main performance bottleneck in this case is due to the large amount of i...
104
click to vote
PVLDB
2010
15 years 25 days ago
2010
In XML search systems twig queries specify predicates on node values and on the structural relationships between nodes, and a key operation is to join individual query node matche...