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ECIR
2009
Springer
13 years 5 months ago
Studying Query Expansion Effectiveness
Query expansion is an effective technique in improving the retrieval performance for ad-hoc retrieval. However, query expansion can also fail, leading to a degradation of the retri...
Ben He, Iadh Ounis
GIR
2006
ACM
14 years 1 months ago
Indexing implicit locations for geographical information retrieval
Local search has become a hot topic recently in information retrieval research area. How to retrieve geographical information correctly and efficiently is a key challenge to locat...
Zhisheng Li, Chong Wang 0002, Xing Xie, Xufa Wang,...
IPM
2006
77views more  IPM 2006»
13 years 7 months ago
A general matrix framework for modelling Information Retrieval
Content-oriented retrieval models are based on a document-term matrix, whereas link-oriented retrieval models are based on an adjacent (parentchild) matrix. Term frequency and inv...
Thomas Rölleke, Theodora Tsikrika, Gabriella ...
RIAO
2004
13 years 9 months ago
Selective Combination of Evidence for Topic Distillation using Document and Aggregate-level Information
The combination of evidence for Information Retrieval has been studied extensively in order to increase effectiveness. In this paper, we study the selective application of differe...
Vassilis Plachouras, Iadh Ounis, Fidel Cacheda
SIGIR
2011
ACM
12 years 10 months ago
Utilizing minimal relevance feedback for ad hoc retrieval
Using relevance feedback can significantly improve (ad hoc) retrieval effectiveness. Yet, if little feedback is available, effectively exploiting it is a challenge. To that end,...
Eyal Krikon, Oren Kurland