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SSWMC
2004
13 years 9 months ago
2004
We study a detection-theoretic approach to steganalysis. The relative entropy between covertext and stegotext determines the steganalyzer's difficulty in discriminating them,...
TREC
2004
13 years 9 months ago
2004
In the experiment described in this paper, we investigate the effectiveness of a document-independent technique for eliciting additional information from searchers about their inf...
INTERACT
2003
13 years 9 months ago
2003
: Handing over objects is a common event during collaboration in face-to-face interaction. We investigate how such an event can be supported when the interaction takes place in vir...
NIPS
2003
13 years 9 months ago
2003
We describe a Markov chain method for sampling from the distribution of the hidden state sequence in a non-linear dynamical system, given a sequence of observations. This method u...
CLEF
2009
Springer
13 years 8 months ago
2009
Springer
This paper describes the participation of the Technical University of Catalonia in the CLEF 2009 Question Answering on Speech Transcripts track. We have participated in the Englis...