396 search results - page 41 / 80 » Semantic Optimization of Preference Queries |
BIRTE
2006
13 years 11 months ago
2006
Real-time enterprises rely on user queries being answered in a timely fashion and using fresh data. This is relatively easy when systems are lightly loaded and both queries and upd...
ADBIS
2010
Springer
13 years 8 months ago
2010
Springer
Abstract. The last years there is an increasing interest for query processing techniques that take into consideration the dominance relationship between objects to select the most ...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
Integrated access to multiple distributed and autonomous RDF data sources is a key challenge for many semantic web applications. As a reaction to this challenge, SPARQL, the W3C Re...
ACMICEC
2007
ACM
13 years 11 months ago
2007
ACM
An important problem in search engine advertising is keyword1 generation. In the past, advertisers have preferred to bid for keywords that tend to have high search volumes and hen...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...