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» Merging Databases Under Constraints
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SDB
1995
178views Database» more  SDB 1995»
15 years 3 months ago
A Semantics-based Approach to Design of Query Languages for Partial Information
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
Leonid Libkin
ICDE
2008
IEEE
214views Database» more  ICDE 2008»
16 years 1 months ago
Efficient Online Subsequence Searching in Data Streams under Dynamic Time Warping Distance
Abstract- Data streams of real numbers are generated naturally in many applications. The technology of online subsequence searching in data streams becomes more and more important ...
Mi Zhou, Man Hon Wong
ICDT
2009
ACM
198views Database» more  ICDT 2009»
16 years 11 days 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
FQAS
2006
Springer
186views Database» more  FQAS 2006»
15 years 3 months ago
Project-Join-Repair: An Approach to Consistent Query Answering Under Functional Dependencies
Consistent query answering is the term commonly used for the problem of answering queries on databases that violate certain integrity constraints. We address this problem for univ...
Jef Wijsen
ICDE
2007
IEEE
193views Database» more  ICDE 2007»
16 years 1 months ago
Categorization and Optimization of Synchronization Dependencies in Business Processes
requirement. Furthermore, programming using sequence constructs normally produce nested structures and The current approachfor modeling synchronization in scattered code, especiall...
Qinyi Wu, Calton Pu, Akhil Sahai, Roger S. Barga