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» On performance of topical opinion retrieval
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SIGIR
2006
ACM
14 years 1 months ago
Improving the estimation of relevance models using large external corpora
Information retrieval algorithms leverage various collection statistics to improve performance. Because these statistics are often computed on a relatively small evaluation corpus...
Fernando Diaz, Donald Metzler
ICWSM
2009
13 years 5 months ago
Information Cascades in the Blogosphere: A Look Behind the Curtain
With an increasing number of people that read, write and comment on blogs, the blogosphere has established itself as an essential medium of communication. A fundamental characteri...
Manos Papagelis, Nilesh Bansal, Nick Koudas
CLEF
2007
Springer
14 years 1 months ago
Using Centrality to Rank Web Snippets
We describe our participation in the WebCLEF 2007 task, targeted at snippet retrieval from web data. Our system ranks snippets based on a simple similarity-based centrality, inspir...
Valentin Jijkoun, Maarten de Rijke
CLEF
2009
Springer
13 years 8 months ago
Automatically Generating Queries for Prior Art Search
This report outlines our participation in CLEF-IP's 2009 prior art search task. In the task's initial year our focus lay on the automatic generation of effective queries...
Erik Graf, Leif Azzopardi, Keith van Rijsbergen
CLEF
2009
Springer
13 years 8 months ago
Prior Art Search Using International Patent Classification Codes and All-Claims-Queries
In this study, we describe our system at the Intellectual Property track of the 2009 CrossLanguage Evaluation Forum campaign (CLEF-IP). The CLEF-IP track addressed prior art searc...
Benjamin Herbert, György Szarvas, Iryna Gurev...