54 search results - page 6 / 11 » Class-Based Probability Estimation Using a Semantic Hierarch... |
SIGIR
2010
ACM
13 years 11 months ago
2010
ACM
As a principled approach to capturing semantic relations of words in information retrieval, statistical translation models have been shown to outperform simple document language m...
AUTONOMICS
2007
ACM
13 years 11 months ago
2007
ACM
Abstract. Adaptation of devices and applications based on contextual information has a great potential to enhance usability and mitigate the increasing complexity of mobile devices...
TREC
2007
13 years 8 months ago
2007
We describe recent extensions to the Ephyra question answering (QA) system and their evaluation in the TREC 2007 QA track. Existing syntactic answer extraction approaches for fact...
ICML
2005
IEEE
14 years 8 months ago
2005
IEEE
We present a directed Markov random field (MRF) model that combines n-gram models, probabilistic context free grammars (PCFGs) and probabilistic latent semantic analysis (PLSA) fo...
CVPR
2004
IEEE
14 years 9 months ago
2004
IEEE
Retrieving images in response to textual queries requires some knowledge of the semantics of the picture. Here, we show how we can do both automatic image annotation and retrieval...