805 search results - page 42 / 161 » On the Role of Integrity Constraints in Data Integration |
DAISD
1994
14 years 11 months ago
1994
We are interested in the problem of validating the consistency of integrity constraints when data is modi ed. In particular, we consider how constraints can be checked with only p...
110
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ICDE
2012
IEEE
13 years 4 days ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...
DEXAW
1999
IEEE
15 years 2 months ago
1999
IEEE
Recent efforts in the Conceptual Modelling community have been devoted to properly capturing time-varying information, and several proposals of temporally enhanced Entity-Relation...
117
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GECCO
2009
Springer
14 years 7 months ago
2009
Springer
Public data sharing is utilized in a number of businesses to facilitate the exchange of information. Privacy constraints are usually enforced to prevent unwanted inference of info...
155
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
Several recent papers have focused on OLAP over imprecise data, where each fact can be a region, instead of a point, in a multidimensional space. They have provided a multiple-wor...