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EDBT
2009
ACM
127views Database» more  EDBT 2009»
14 years 2 months ago
Answering aggregate keyword queries on relational databases using minimal group-bys
Keyword search has been recently extended to relational databases to retrieve information from text-rich attributes. However, all the existing methods focus on finding individual...
Bin Zhou 0002, Jian Pei
PODS
1995
ACM
139views Database» more  PODS 1995»
13 years 11 months ago
Normalizing Incomplete Databases
Databases are often incomplete because of the presence of disjunctive information, due to con icts, partial knowledge and other reasons. Queries against such databases often ask q...
Leonid Libkin
IDEAS
2003
IEEE
122views Database» more  IDEAS 2003»
14 years 1 months ago
Preferred Repairs for Inconsistent Databases
The objective of this paper is to investigate the problems related to the extensional integration of information sources. In particular, we propose an approach for managing incons...
Sergio Greco, Cristina Sirangelo, Irina Trubitsyna...
TCBB
2011
13 years 2 months ago
A Partial Set Covering Model for Protein Mixture Identification Using Mass Spectrometry Data
—Protein identification is a key and essential step in mass spectrometry (MS) based proteome research. To date, there are many protein identification strategies that employ eithe...
Zengyou He, Can Yang, Weichuan Yu
CIKM
2001
Springer
14 years 11 days ago
The Effectiveness of Query Expansion for Distributed Information Retrieval
Query expansion has been shown effective for both single database retrieval and for distributed information retrieval where complete collection information is available. One might...
Paul Ogilvie, James P. Callan