306 search results - page 43 / 62 » Data Exchange: Semantics and Query Answering |
HT
2007
ACM
15 years 3 months ago
2007
ACM
The design and maintenance of an aero-engine generates a significant amount of documentation. When designing new engines, engineers must obtain knowledge gained from maintenance o...
ICDT
2007
ACM
15 years 5 months ago
2007
ACM
Abstract. We define and study formal privacy guarantees for information integration systems, where sources are related to a public schema by mappings given by source-to-target dep...
PVLDB
2008
14 years 11 months ago
2008
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
FOIS
2008
15 years 1 months ago
2008
Many geographic terms, such as "river" and "lake", are vague, with no clear boundaries of application. In particular, the spatial extent of such features is oft...
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WWW
2008
ACM
16 years 12 days ago
2008
ACM
Easy reuse and integration of declaratively described information in a distributed setting is one of the main motivations for building the Semantic Web. Despite of this claim, reu...