365 search results - page 13 / 73 » Answering Non-Monotonic Queries in Relational Data Exchange |
IS
2008
14 years 9 months ago
2008
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...
SIGMOD
1999
ACM
15 years 1 months ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....
SAC
2006
ACM
15 years 3 months ago
2006
ACM
In this paper, we show that representation and reasoning techniques used in traditional knowledge engineering and the emerging Semantic Web can play an important role for heteroge...
ASWC
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. The increasing amount of interlinked RDF data has finally made available the necessary building blocks for the web of data. This in turns makes it possible (and interest...
SDM
2003
SIAM
14 years 10 months ago
2003
SIAM
In earlier work we have introduced and explored a variety of different probabilistic models for the problem of answering selectivity queries posed to large sparse binary data set...