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EUSFLAT
2001
107views Fuzzy Logic» more  EUSFLAT 2001»
13 years 8 months ago
Enriching vague queries by fuzzy orderings
The Vague Query System (VQS) due to Kiing and Palkoska is an add-on to relational databases which is able to suggest alternative query results in case that an exact query fails. T...
Ulrich Bodenhofer, Josef Küng
WEBDB
2004
Springer
202views Database» more  WEBDB 2004»
14 years 25 days ago
Mining Approximate Functional Dependencies and Concept Similarities to Answer Imprecise Queries
Current approaches for answering queries with imprecise constraints require users to provide distance metrics and importance measures for attributes of interest. In this paper we ...
Ullas Nambiar, Subbarao Kambhampati
ICDE
2008
IEEE
395views Database» more  ICDE 2008»
15 years 7 months ago
PermJoin: An Efficient Algorithm for Producing Early Results in Multi-join Query Plans
This paper introduces an efficient algorithm for Producing Early Results in Multi-join query plans (PermJoin, for short). While most previous research focuses only on the case of ...
Justin J. Levandoski, Mohamed E. Khalefa, Mohamed ...
DEBU
2010
104views more  DEBU 2010»
13 years 7 months ago
Query Results Ready, Now What?
A major hardness of processing searches issued in the form of keywords on structured data is the ambiguity problem. A set of keywords itself is not a complete piece of information...
Ziyang Liu, Yi Chen
DASFAA
2009
IEEE
134views Database» more  DASFAA 2009»
14 years 2 months ago
Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration
In Deep Web data integration, some Web database interfaces express exclusive predicates of the form Qe = Pi(Pi ∈ P1, P2, . . . , Pm), which permits only one predicate to be selec...
Fangjiao Jiang, Weiyi Meng, Xiaofeng Meng