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LINGUIST List 18.2348

Tue Aug 07 2007

FYI: New Colloquium Series Tilburg University

Editor for this issue: Fatemeh Abdollahi <fatemehlinguistlist.org>


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        1.    Marie Nilsenova, New Colloquium Series Tilburg University


Message 1: New Colloquium Series Tilburg University
Date: 06-Aug-2007
From: Marie Nilsenova <m.nilsenovauvt.nl>
Subject: New Colloquium Series Tilburg University
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The Department of Communication and Information Sciences
at the Tilburg University will start a new colloquium
series with a talk by

Julia Hirschberg
(Columbia University)

entitled

Deception of speech

Everybody is welcome to attend.

Date: August 24, 2007
Time: 3 p.m.
Place: Dante Building, room DZ8, Tilburg University

Abstract:
Deception of Speech
Julia Hirschberg (in collaboration with Frank Enos,
Columbia University; Elizabeth Shriberg, Andreas Stolcke,
and Martin Graciarena, SRI/ICSI; Stefan Benus, Brown
University; and more)

This talk will discuss production and perception studies of
deceptive speech and the acoustic/prosodic and lexical cues
associated with deception. Experiments in which we
collected a large corpus of deceptive and non-deceptive
speech from naive subjects in the laboratory are described,
together with perception experiments of this corpus.
Features extracted from this corpus have been used in
Machine Learning experiments to predict deception with
classification accuracy from 64.0- 66.4%, depending upon
feature-set and learning algorithm. This performance
compares favorably with the performance of human
judges on the same data and task, which averaged 58.2%. We
also discuss current findings on the role of personality
factors in deception detection, speaker-dependent models of
deception, and future research.

Linguistic Field(s): Computational Linguistics; Discipline of Linguistics



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