204
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ICDT
16 years 1 months ago
2009 ACM 
We formalize and study business process systems that are centered around "business artifacts", or simply "artifacts". This approach focuses on data records, kn...
182
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ICDT
16 years 1 months ago
2009 ACM 
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...
193
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ICDT
16 years 1 months ago
2009 ACM
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
191
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ICDT
16 years 1 months ago
2009 ACM 
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
195
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ICDT
16 years 1 months ago
2009 ACM
The ability to flexibly compose confidence computation with the operations of relational algebra is an important feature of probabilistic database query languages. Computing confi...
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