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EDBT
2002
ACM
139views Database» more  EDBT 2002»
14 years 9 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
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 3 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
SIGMOD
2009
ACM
291views Database» more  SIGMOD 2009»
14 years 9 months ago
Partial join order optimization in the paraccel analytic database
The ParAccel Analytic DatabaseTM is a fast shared-nothing parallel relational database system with a columnar orientation, adaptive compression, memory-centric design, and an enha...
Yijou Chen, Richard L. Cole, William J. McKenna, S...
IEEESCC
2010
IEEE
14 years 1 months ago
Using Complex Event Processing for Dynamic Business Process Adaptation
—As the amount of data generated by today’s pervasive environments increases exponentially, there is a stronger need to decipher the important information that is hidden among ...
Gabriel Hermosillo, Lionel Seinturier, Laurence Du...