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WWW
2011
ACM
13 years 2 months ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
WWW
2011
ACM
13 years 2 months ago
2011
ACM
The clustering coefficient of a node in a social network is a fundamental measure that quantifies how tightly-knit the community is around the node. Its computation can be reduce...
WWW
2011
ACM
13 years 2 months ago
2011
ACM
Our objective is to improve the performance of keyword based image search engines by re-ranking their baseline results. To this end, we address three limitations of existing searc...
WWW
2011
ACM
13 years 2 months ago
2011
ACM
Bucket testing, also known as A/B testing, is a practice that is widely used by on-line sites with large audiences: in a simple version of the methodology, one evaluates a new fea...
WWW
2011
ACM
13 years 2 months ago
2011
ACM
Online social networks have become very popular in recent years and their number of users is already measured in many hundreds of millions. For various commercial and sociological...