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ICDE
2007
IEEE
158views Database» more  ICDE 2007»
14 years 9 months ago
Efficient Evaluation of Imprecise Location-Dependent Queries
In location-based services, it is common for a user to issue a query based on his/her current position. One such example is "find the available cabs within two miles of my cu...
Jinchuan Chen, Reynold Cheng
PEPM
2009
ACM
14 years 4 months ago
Program transformation for numerical precision
This article introduces a new program transformation in order to enhance the numerical accuracy of floating-point computations. We consider that a program would return an exact r...
Matthieu Martel
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
DEXA
2009
Springer
167views Database» more  DEXA 2009»
14 years 2 months ago
Analyses and Validation of Conditional Dependencies with Built-in Predicates
Abstract. This paper proposes a natural extension of conditional functional dependencies (cfds [14]) and conditional inclusion dependencies (cinds [8]), denoted by cfdp s and cindp...
Wenguang Chen, Wenfei Fan, Shuai Ma
SIGIR
2009
ACM
14 years 2 months ago
Score adjustment for correction of pooling bias
Information retrieval systems are evaluated against test collections of topics, documents, and assessments of which documents are relevant to which topics. Documents are chosen fo...
William Webber, Laurence A. F. Park