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» A data abstraction approach for query relaxation
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TAL
2010
Springer
13 years 5 months ago
Passage Retrieval in Log Files: An Approach Based on Query Enrichment
Abstract. The question answering systems are considered the next generation of search engines. This paper focuses on the first step of this process, which is to search for relevant...
Hassan Saneifar, Stéphane Bonniol, Anne Lau...
ICDE
2005
IEEE
172views Database» more  ICDE 2005»
14 years 1 months ago
Monitoring K-Nearest Neighbor Queries Over Moving Objects
Many location-based applications require constant monitoring of k-nearest neighbor (k-NN) queries over moving objects within a geographic area. Existing approaches to this problem...
Xiaohui Yu, Ken Q. Pu, Nick Koudas
SERVICES
2008
103views more  SERVICES 2008»
13 years 9 months ago
Grouping Distributed Stream Query Services by Operator Similarity and Network Locality
Distributed stream query services must simultaneously process a large number of complex, continuous queries with stringent performance requirements while utilizing distributed pro...
Sangeetha Seshadri, Bhuvan Bamba, Brian F. Cooper,...
ICDE
2010
IEEE
276views Database» more  ICDE 2010»
14 years 2 months ago
X-data: Generating test data for killing SQL mutants
Abstract— Checking if an SQL query has been written correctly is not an easy task. Formal verification is not applicable, since it is based on comparing a specification with an...
Bhanu Pratap Gupta, Devang Vira, S. Sudarshan
CAISE
2006
Springer
13 years 11 months ago
An Efficient Approach to Support Querying Secure Outsourced XML Information
Abstract. Data security is well-recognized a vital issue in an information system that is supported in an outsource environment. However, most of conventional XML encryption propos...
Yin Yang, Wilfred Ng, Ho Lam Lau, James Cheng