390 search results - page 39 / 78 » Approximate Query Answering in Locally Closed Databases |
117
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BTW
2005
Springer
15 years 3 months ago
2005
Springer
Abstract: Peer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema,...
VLDB
2007
ACM
15 years 3 months ago
2007
ACM
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...
PODS
2010
ACM
14 years 11 months ago
2010
ACM
Databases in real life are often neither entirely closed-world nor entirely open-world. Indeed, databases in an enterprise are typically partially closed, in which a part of the d...
104
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EDBT
2006
ACM
15 years 10 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
NGITS
1999
Springer
15 years 2 months ago
1999
Springer
The integration of information from multiple databases has been an enduring subject of research for over 20 years, and many different solutions have been attempted or proposed. Mis...