209 search results - page 3 / 42 » Robust Estimators under the Imprecise Dirichlet Model |
CLEF
2007
Springer
14 years 1 months ago
2007
Springer
We present two simple but effective smoothing techniqes for the standard language model (LM) approach to information retrieval [12]. First, we extend the unigram Dirichlet smoothi...
ICMCS
2007
IEEE
14 years 1 months ago
2007
IEEE
In this paper, we propose power efficient motion estimation (ME) using multiple imprecise sum absolute difference (SAD) metric computations. We extend recent work in [18] by prov...
SIGIR
2003
ACM
14 years 25 days ago
2003
ACM
Latent Dirichlet Allocation (LDA) is a fully generative approach to language modelling which overcomes the inconsistent generative semantics of Probabilistic Latent Semantic Index...
KDD
2010
ACM
13 years 5 months ago
2010
ACM
One essential issue of document clustering is to estimate the appropriate number of clusters for a document collection to which documents should be partitioned. In this paper, we ...
ACL
2010
13 years 5 months ago
2010
Existing word similarity measures are not robust to data sparseness since they rely only on the point estimation of words' context profiles obtained from a limited amount of ...