4961 search results - page 746 / 993 » Homomorphism-Homogeneous Relational Structures |
219
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SIGMOD
2005
ACM
16 years 5 months ago
2005
ACM
A defining characteristic of continuous queries over on-line data streams, possibly bounded by sliding windows, is the potentially infinite and time-evolving nature of their input...
157
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SIGMOD
2003
ACM
16 years 5 months ago
2003
ACM
Schema matching is a critical problem for integrating heterogeneous information sources. Traditionally, the problem of matching multiple schemas has essentially relied on finding ...
174
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SIGMOD
2002
ACM
16 years 5 months ago
2002
ACM
This report is part of the seminar Digital Information Curation held by Prof. Dr. Marc H. Scholl and Dr. Andr?e Seifert during the winter term 2005/06. Its intention is to summari...
162
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PODS
2005
ACM
16 years 5 months ago
2005
ACM
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
134
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PODS
2006
ACM
16 years 5 months ago
2006
ACM
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...