390 search results - page 10 / 78 » Approximate Query Answering in Locally Closed Databases |
158
click to vote
ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
In this paper we introduce the idea of snapshot queries for energy efficient data acquisition in sensor networks. Network nodes generate models of their surrounding environment th...
PODS
2008
ACM
15 years 10 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...
159
click to vote
ICDE
2004
IEEE
15 years 11 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
ADC
2003
Springer
15 years 3 months ago
2003
Springer
Semistructured data, in particular XML, has emerged as one of the primary means for information exchange and content management. The power of XML allows authors to structure a doc...
SEMWEB
2010
Springer
14 years 7 months ago
2010
Springer
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...