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» An Ontology-Based Information Retrieval Model
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ACL
2009
15 years 4 months ago
A Generative Blog Post Retrieval Model that Uses Query Expansion based on External Collections
User generated content is characterized by short, noisy documents, with many spelling errors and unexpected language usage. To bridge the vocabulary gap between the user's in...
Wouter Weerkamp, Krisztian Balog, Maarten de Rijke
ICANN
2009
Springer
16 years 29 days ago
Modelling Image Complexity by Independent Component Analysis, with Application to Content-Based Image Retrieval
Abstract. Estimating the degree of similarity between images is a challenging task as the similarity always depends on the context. Because of this context dependency, it seems qui...
Jukka Perkiö, Aapo Hyvärinen
SIGIR
2005
ACM
15 years 12 months ago
A Markov random field model for term dependencies
This paper develops a general, formal framework for modeling term dependencies via Markov random fields. The model allows for arbitrary text features to be incorporated as eviden...
Donald Metzler, W. Bruce Croft
RECSYS
2010
ACM
15 years 6 months ago
Content-based recommendation in social tagging systems
We present and evaluate various content-based recommendation models that make use of user and item profiles defined in terms of weighted lists of social tags. The studied approach...
Iván Cantador, Alejandro Bellogín, D...
SIGIR
2006
ACM
16 years 11 days 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