591 search results - page 37 / 119 » Embracing policy engineering |
JIS
2008
14 years 9 months ago
2008
This paper deals with one aspect of the index quality of search engines: index freshness. The purpose is to analyse the update strategies of the major Web search engines Google, Y...
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WWW
2009
ACM
15 years 10 months ago
2009
ACM
In order to return relevant search results, a search engine must keep its local repository synchronized to the Web, but it is usually impossible to attain perfect freshness. Hence...
WEBDB
2007
Springer
15 years 3 months ago
2007
Springer
Due to resource constraints, search engines usually have difficulties keeping the local database completely synchronized with the Web. To detect as many changes as possible, the ...
SACMAT
2003
ACM
15 years 2 months ago
2003
ACM
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
FASE
2008
Springer
14 years 11 months ago
2008
Springer
Service Oriented Computing is a paradigm for developing software systems as the composition of a number of services. Services are loosely coupled entities, can be dynamically publi...