284 search results - page 4 / 57 » Discriminative probabilistic models for passage based retrie... |
SIGIR
2004
ACM
13 years 11 months ago
2004
ACM
We present a probabilistic model for a document corpus that combines many of the desirable features of previous models. The model is called “GaP” for Gamma-Poisson, the distri...
CIKM
2007
Springer
13 years 12 months ago
2007
Springer
As one of the most effective query expansion approaches, local feedback is able to automatically discover new query terms and improve retrieval accuracy for different retrieval ...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
Recently, i-vector extraction and Probabilistic Linear Discriminant Analysis (PLDA) have proven to provide state-of-the-art speaker verification performance. In this paper, the s...
BIBE
2007
IEEE
14 years 4 days ago
2007
IEEE
—We present an information retrieval model for combining evidence from concept-based semantics, term statistics, and context for improving search precision of genomics literature...
CIKM
2010
Springer
13 years 4 months ago
2010
Springer
This work presents a general rank-learning framework for passage ranking within Question Answering (QA) systems using linguistic and semantic features. The framework enables query...