1052 search results - page 58 / 211 » A Web Query System for Heterogeneous Government Data |
114
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GIS
2002
ACM
15 years 1 months ago
2002
ACM
The focus of this paper is on interoperability issues to achieve data integration in distributed databases for geographic applications. Our concrete application is in the context ...
WSDM
2010
ACM
15 years 11 months ago
2010
ACM
In web search, recency ranking refers to ranking documents by relevance which takes freshness into account. In this paper, we propose a retrieval system which automatically detect...
173
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SIGIR
2011
ACM
14 years 4 months ago
2011
ACM
As the Internet grows explosively, search engines play a more and more important role for users in effectively accessing online information. Recently, it has been recognized that ...
109
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AMAI
2005
Springer
15 years 1 months ago
2005
Springer
Mediator systems integrate distributed, heterogeneous and autonomous data sources, but their e ective use requires the solution of hard query optimization problems. This is usuall...
130
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CIKM
1994
Springer
15 years 6 months ago
1994
Springer
Accessing information sources to retrieve data requested by a user can be expensive, especially when dealing with distributed information sources. One way to reduce this cost is t...