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SIGIR
2006
ACM
14 years 2 months ago
A study of statistical models for query translation: finding a good unit of translation
This paper presents a study of three statistical query translation models that use different units of translation. We begin with a review of a word-based translation model that us...
Jianfeng Gao, Jian-Yun Nie
CIVR
2008
Springer
166views Image Analysis» more  CIVR 2008»
13 years 10 months ago
Non-negative matrix factorisation for object class discovery and image auto-annotation
In information retrieval, sub-space techniques are usually used to reveal the latent semantic structure of a data-set by projecting it to a low dimensional space. Non-negative mat...
Jiayu Tang, Paul H. Lewis
ACL
2009
13 years 6 months ago
Optimizing Language Model Information Retrieval System with Expectation Maximization Algorithm
Statistical language modeling (SLM) has been used in many different domains for decades and has also been applied to information retrieval (IR) recently. Documents retrieved using...
Justin Liang-Te Chiu, Jyun-Wei Huang
SIGIR
2004
ACM
14 years 2 months ago
User biased document language modelling
Capitalizing on the intuitive underlying assumptions of Language Modelling for Ad-Hoc Retrieval we present a novel approach that is capable of injecting the user’s context of th...
Leif Azzopardi, Mark Girolami, Cornelis Joost van ...
SIGIR
2003
ACM
14 years 2 months ago
On an equivalence between PLSI and LDA
Latent Dirichlet Allocation (LDA) is a fully generative approach to language modelling which overcomes the inconsistent generative semantics of Probabilistic Latent Semantic Index...
Mark Girolami, Ata Kabán