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» Efficient Top-k Query Evaluation on Probabilistic Data
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SIGMOD
2003
ACM
239views Database» more  SIGMOD 2003»
16 years 6 months ago
D(k)-Index: An Adaptive Structural Summary for Graph-Structured Data
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...
Chen Qun, Andrew Lim, Kian Win Ong
DEXA
2008
Springer
132views Database» more  DEXA 2008»
15 years 8 months ago
Efficient Updates for Continuous Skyline Computations
We address the problem of maintaining continuous skyline queries efficiently over dynamic objects with d dimensions. Skyline queries are an important new search capability for mult...
Yu-Ling Hsueh, Roger Zimmermann, Wei-Shinn Ku
SIGMOD
2007
ACM
225views Database» more  SIGMOD 2007»
16 years 6 months ago
From complete to incomplete information and back
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
Lyublena Antova, Christoph Koch, Dan Olteanu
CIKM
2008
Springer
15 years 8 months ago
Active relevance feedback for difficult queries
Relevance feedback has been demonstrated to be an effective strategy for improving retrieval accuracy. The existing relevance feedback algorithms based on language models and vect...
Zuobing Xu, Ram Akella
SSDBM
1998
IEEE
101views Database» more  SSDBM 1998»
15 years 10 months ago
Specifications for Efficient Indexing in Spatiotemporal Databases
: A new issue that arises in modern applications involves the efficient manipulation of (static or moving) spatial objects, and the relationships among them. As a result, modern da...
Yannis Theodoridis, Timos K. Sellis, Apostolos Pap...