507 search results - page 44 / 102 » Portfolio theory of information retrieval |
WWW
2009
ACM
14 years 8 months ago
2009
ACM
In this paper we describe a problem of discovering query clusters from a click-through graph of web search logs. The graph consists of a set of web search queries, a set of pages ...
AIRWEB
2007
Springer
14 years 1 months ago
2007
Springer
Web spam can significantly deteriorate the quality of search engines. Early web spamming techniques mainly manipulate page content. Since linkage information is widely used in we...
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Documents in the Web are often organized using category trees by information providers (e.g. CNN, BBC) or search engines (e.g. Google, Yahoo!). Such category trees are commonly kn...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Plenty of algorithms for link prediction have been proposed and were applied to various real networks. Among these works, the weights of links are rarely taken into account. In th...