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Homogeneity measure for forensic voice comparison: A step forward reliability

  • Moez Ajili
  • , Jean François Bonastre
  • , Solange Rossato
  • , Juliette Kahn
  • , Itshak Lapidot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

In forensic voice comparison, it is strongly recommended to follow the Bayesian paradigm to present a forensic evidence to the court. In this paradigm, the strength of the forensic evidence is summarized by a likelihood ratio (LR). But in the real world, to base only on the LR without looking to its degree of reliability does not allow experts to have a good judgement. This work is mainly motivated by the need to quantify this reliability. In this concept, we think that the presence of speaker specific information and its homogeneity between the two signals to compare should be evaluated. This paper is dedicated to the latter, the homogeneity. We propose an information theory based homogeneity measure which determines whether a voice comparison is feasible or not.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsAlvaro Pardo, Josef Kittler
PublisherSpringer Verlag
Pages135-142
Number of pages8
ISBN (Print)9783319257501
DOIs
StatePublished - 1 Jan 2015
Externally publishedYes
Event20th Iberoamerican Congress on on Pattern Recognition, CIARP 2015 - Montevideo, Uruguay
Duration: 9 Nov 201512 Nov 2015

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9423
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference20th Iberoamerican Congress on on Pattern Recognition, CIARP 2015
Country/TerritoryUruguay
CityMontevideo
Period9/11/1512/11/15

Keywords

  • Forensic voice comparison
  • Homogeneity
  • Reliability
  • Speaker recognition

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

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