4468 search results - page 590 / 894 » Processing Forecasting Queries |
125
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PODS
2002
ACM
16 years 4 months ago
2002
ACM
We study two classes of view update problems in relational databases. We are given a source database S, a monotone query Q, and the view Q(S) generated by the query. The first pro...
145
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PODS
2008
ACM
16 years 4 months ago
2008
ACM
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
139
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
Abstract-- Mapping mashups are emerging Web 2.0 applications in which data objects such as blogs, photos and videos from different sources are combined and marked in a map using AP...
138
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ICEIS
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract. In the Web environment, rich, diverse sources of heterogeneous and distributed data are ubiquitous. In fact, even the information characterizing a single entity - like, f...
110
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CIKM
2007
Springer
15 years 10 months ago
2007
Springer
Heterogeneous entities or objects are very common and are usually interrelated with each other in many scenarios. For example, typical Web search activities involve multiple types...