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WWW
2009
ACM
16 years 6 months ago
Answering approximate queries over autonomous web databases
To deal with the problem of empty or too little answers returned from a Web database in response to a user query, this paper proposes a novel approach to provide relevant and rank...
Xiangfu Meng, Z. M. Ma, Li Yan
ICDT
2009
ACM
198views Database» more  ICDT 2009»
16 years 6 months ago
Consistent query answering under primary keys: a characterization of tractable queries
This article deals with consistent query answering to conjunctive queries under primary key constraints. The repairs of an inconsistent database db are obtained by selecting a max...
Jef Wijsen
ICDE
2009
IEEE
144views Database» more  ICDE 2009»
16 years 7 months ago
Web Query Recommendation via Sequential Query Prediction
Qi He, Daxin Jiang, Zhen Liao, Steven C. H. Hoi, K...
VLDB
1997
ACM
165views Database» more  VLDB 1997»
15 years 10 months ago
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
In semistructured databases there is no schema fixed in advance. To provide the benefits of a schema in such environments, we introduce DataGuides: concise and accurate structural...
Roy Goldman, Jennifer Widom
SSDBM
1999
IEEE
86views Database» more  SSDBM 1999»
15 years 10 months ago
A Query System in a Biological Database
In this paper, we present a query system that has been implemented in a practical biological database - GPCRDB. Distinguishing features of this system include: smart query relaxat...
Dunren Che, Yangjun Chen, Karl Aberer