332 search results - page 33 / 67 » Query Evaluation and Optimization in the Semantic Web |
WWW
2003
ACM
14 years 8 months ago
2003
ACM
Continuous queries are queries for which responses given to users must be continuously updated, as the sources of interest get updated. Such queries occur, for instance, during on...
WISE
2005
Springer
14 years 29 days ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
We study in this paper the problem of bridging the semantic gap between low-level image features and high-level semantic concepts, which is the key hindrance in content-based imag...
WWW
2009
ACM
14 years 8 months ago
2009
ACM
Measuring the similarity between semantic relations that hold among entities is an important and necessary step in various Web related tasks such as relation extraction, informati...
WSDM
2009
ACM
14 years 2 months ago
2009
ACM
Measuring the similarity between implicit semantic relations is an important task in information retrieval and natural language processing. For example, consider the situation whe...