Some Student Projects Supervised

Final year projects

• Abstract, 'ETUDES DES PERFORMANCES DU SYSTEME DE RECONNAISSANCE DE LOCUTEURS ASPIC SUR LA BASE DE DONNEES DE L'IASCP', final year project, Gisela Ribary, July 2002, Institut de Police Scientifique, School of Forensic Sciences, University of Lausanne.
  Presentation (in french) discussing the effect of disguise and different speaking styles on the performance of an automatic speaker recognition system using a data from the IASCP database (University of Florida)
• Abstract, 'SIMULATION DE CAS REELS DE RECONNAISSANCE DE LOCUTEURS AU MOYEN DU LOGICIEL ASPIC', final year project, Quentin Rossy, June 2003, Institut de Police Scientifique, School of Forensic Sciences, University of Lausanne.
  Presentation (in french) which includes a description of the IPSC-02 forensic speaker recognition database and associated experiments that was recorded during this period
• Abstract, 'RECONNAISSANCE DE LOCUTEURS : COMPARAISON DE PERFORMANCES ENTRE LA RECONNAISSANCE AUDITIVE PAR DES PROFANES ET DE SYSTEMES AUTOMATIQUES.', final year project, Damien Dessimoz, Summer 2004, Institut de Police Scientifique, School of Forensic Sciences, University of Lausanne.
  Report and Annexe (in french) which includes a detailed description of work involving with auditory and aural speaker recognition.
  This work won him the award 'Prix 2005 de la Societe Academique du Valais (SAVs)' for diploma work of distinction and merit. Congratulations, Damien !
• Abstract, 'ANALYSE DE L'INFLUENCE DES CONDITIONS D'ENREGISTREMENT DANS LA RECONNAISSANCE AUTOMATIQUE DE LOCUTEURS EN SCIENCES FORENSIQUES', final year project, Philipp Zimmermann, June 2005, Institut de Police Scientifique, School of Forensic Sciences, University of Lausanne.
  Report and presentation (in french) which includes a detailed description of the creation of the IPSC03 database, containing 73 speakers of Swiss French, in 3 different recording conditions (i.e., PSTN (fixed telephone), GSM (cellular telephone) and Digital (direct digital recording using a microphone)).

Semester projects

• Reconnaissance du locuteur dans le domaine forensique , Azzabi Zouraq Salim , semester project, 2003, Swiss Federal Institute of Technology, Lausanne (EPFL)
• Development of a prototype forensic automatic speaker recognition system in Matlab , Andrea Rizzi , semester project, 2005, Communication Systems, Swiss Federal Institute of Technology, Lausanne (EPFL) In this project, Andrea has developed a forensic automatic speaker recognition system prototype completely in Matlab. This demo uses some freely available libraries and implements the approach presented in this paper Here's his presentation. (Demo link to appear soon)
• Automatic Speaker Recognition using Universal Background Model (UBM) and MAP adaptation , Zhong Zhong Ni , semester project, 2005, Communication Systems, Swiss Federal Institute of Technology, Lausanne (EPFL) Here's his presentation.

Tutorials and demos

• Automatic Speaker Recognition: A Simple Demonstration using Matlab, for the Biometrics course, Communication Systems, EPFL, 2004. You can find the sample audio recordings and the matlab code here.
• Some examples of generating and sampling language from stochastic context free grammars (SCFG)

  This is some code I'd written in 2001 as part of a project in natural language processing that concerns stochastic context free grammars. I'm providing the code in hope that it might be a starting point for someone playing with grammars and NLP. This code is provided as is, i.e, use it as you see fit, the author absolves himself of any responsibility and will not be able to answer specific questions about the code.
  It contains:

  • scfg2txt : A sampling program that generates the language from a given stochastic context free grammar
  • bigramcounter : Perl code and sample grammars for the program that counts the total number as well as the relative frequencies of the different bigrams in a text
  • scfg2cnf : Perl code and sample grammars for the program that converts the SCFG into Chomsky Normal Form
  • grammarcreation : Contains the perl code and sample grammars for the program that gets the transition probabilities from a grammar in CNF
  You can download a zip file for the Perl and C code here and the documentation here

FAQs

• A brief F.A.Q about graduate school and the Ph.D program at the EPFL that I maintain.

  A compilation of the emails and responses of several graduate students to queries about the EPFL and doctoral studies. It contains some basic guidelines for preparation of graduate life at the EPFL, written from an indian perspective