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EDBT
2002
ACM
139views Database» more  EDBT 2002»
14 years 8 months ago
Aggregate Processing of Planar Points
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
Yufei Tao, Dimitris Papadias, Jun Zhang
SIGMOD
2006
ACM
162views Database» more  SIGMOD 2006»
14 years 8 months ago
Adaptive query processing: why, how, when, what next
Adaptive query processing has been the subject of a great deal of recent work, particularly in emerging data management environments such as data integration and data streams. We ...
Amol Deshpande, Joseph M. Hellerstein, Vijayshanka...
VLDB
2002
ACM
106views Database» more  VLDB 2002»
13 years 8 months ago
Efficient Algorithms for Processing XPath Queries
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
Georg Gottlob, Christoph Koch, Reinhard Pichler
IFSA
2007
Springer
142views Fuzzy Logic» more  IFSA 2007»
14 years 2 months ago
A New Approach for Boolean Query Processing in Text Information Retrieval
The main objective of an information retrieval system is to be effective in providing a user with relevant information in response to a query. However, especially given the inform...
Leemon C. Baird III, Donald H. Kraft
XIMEP
2005
ACM
121views Database» more  XIMEP 2005»
14 years 2 months ago
Trading Precision for Throughput in XPath Processing
We present in this paper a system for rewriting user-specific XPath queries for higher sharing of common sub-expressions in a streaming environment. We rewrite these queries acco...
Engie Bashir, Jihad Boulos