24105 search results - page 128 / 4821 » Models in Information Retrieval |
SIGIR
2006
ACM
14 years 3 months ago
2006
ACM
We introduce a novel approach to combining rankings from multiple retrieval systems. We use a logistic regression model or an SVM to learn a ranking from pairwise document prefere...
CLEF
2009
Springer
13 years 10 months ago
2009
Springer
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...
SIGIR
2011
ACM
13 years 1 days ago
2011
ACM
We reveal that the Okapi BM25 retrieval function tends to overly penalize very long documents. To address this problem, we present a simple yet effective extension of BM25, namel...
MIR
2005
ACM
14 years 2 months ago
2005
ACM
In this paper, we propose a multimodal Web image retrieval technique based on multi-graph enabled active learning. The main goal is to leverage the heterogeneous data on the Web t...
ITCC
2002
IEEE
14 years 2 months ago
2002
IEEE
In this paper we demonstrate that in an ideal Distributed Information Retrieval environment, taking the ability of each collection server to return relevant documents into account...