Dijana PETROVSKA-DELACRÉTAZ

	EPH -Electronics an Physics Department, INT-  9, Rue Charles Fourier  91011 Evry, France	Phone:  Fax:  E-mail:  www:  + 33 (0)1 60 76 44 57   + 33 (0)1 60 76 42 84   dijana.petrovska@int-evry.fr http://www.int-evry.fr/~petrovsk
	1. Curriculum Summary  2. Education and Degrees   3. Work Experience  4. Teaching Experience  5. Project Coordination  6. Topics of Interest   7. Ongoing Projects  8. Past Projects  9. Publications

1. Curriculum Summary

I was born in 1956 in Skopje, Macedonia (Former Yugoslav Republic Of). In 1972 I moved to Switzerland (which nationality I adopted in 1985). I obtained a degree in Physics in 1981 from the Swiss Federal Institute of Technology (EPFL) in Lausanne. From 1982 to 1986, I worked as a research assistant in the Polymer Laboratory, EPFL. During a break to raise my son, I finished my PhD work, that I defended in 1990. During this break, I also attended two postgraduate courses (Artificial and Biological Neural Networks; Virtual Reality and Multimedia), in the Computer Science Department at EPFL.

In 1995, I received a Marie Heim-Heimvogetlin grant for women re-insertion of the Swiss National Science Foundation. That is how I started a new research activity in speech processing at the EPFL-LANOS (formerly CIRC) laboratory, where I worked until 1999. After one year spent as a consultant at AT&T Speech Research Laboratories, and another year in ENST (Ecole Nationale Supéerieure des Télécommunications) Paris, I was working as a senior scientist in the DIVA (Document, Image and Voice Analysis) group, Informatics Department, Fribourg University (DIUF), in Switzerland. Since September 2005 I hold an Assistant Professor position in the Intermedia group of the Electronics and Physics Departement of INT in Evry (France).

My main research activities are applications of data-driven speech segmentation for speaker verification, language identification, very low-bit speech coding and multimodal biometrics. I have published 31 papers in journals and conferences, and hold 2 patents.

2. Education

Degrees

Languages

• Macedonian / French -> bilingual
• English -> fluent
• Serbian/Croatian -> fluent
• German -> working knowledge

3. Work experience/Employement

4. Teaching Experience

• Supervision of student projects (including master theisis projects) during my working periods in EPFL (Lausanne), ENST (France) and during my ongoing employment.
• Ongoing supervision of PhD thesis of A.el Hannani, on the topic of speaker verification.
• Lectures: "Traitement automatique de la parole", master course in the Informatics Department, Fribourg University; academic years 2001-2002, 2002-2003, 2003-2004
• Lectures: "Informatique pour scentifique", 1st year course in the Informatics Department, Fribourg University; academic years 2002-2003, 2003-2004 (general informatics background for non-informatics students, including Mathematica, Linux and Latex environments).

5. Project Coordination

• Active participation in the preparation of the BioSecure NoE proposal (main coordinator B. Dorizzi, INT) . It was ranked on the 3rd place by the European Projects Evaluations (not accepted, first on the reserve list).
• I was actively involved in the realization of the POLYCOST speaker verifiaction database (in the framework of the COST 250 action).

6. Topics of Interest

• Human-Machine interaction through naturally spoken dialogs based on data-driven machine learning techniques;
• Improving speaker recognition performances, using speech recognition;
• Multimodal biometrics;
• Common evaluation of research algorithms.

7. Ongoing Projects

• FASLAV: Towards Fully Automated Spoken Language Acquisition, Understanding, and Speaker Verification by Machines. How to ``learn to understand'' from databases of un-transcribed speech and ``to verify the speakers' identity'' using segmental techniques, that combine automatic speech recognition and speaker verification methods (supervision of PhD student A. el Hannani).

• (IM)2: Interactive Multimodal Information Management. In the framework of National Center of Competence in Research (NCCR) this project is aimed at the advancement of research, and the development of prototypes, in the field of man-machine interaction.

• Speaker Verification in international NIST (National Institute of Standards and Technology, USA) evaluations. Speaker verification algorithms constantly evaluated in international speaker evaluation campaigns (1998, 1999, 2001, and 2003 evaluations): Participation to the European consortium for speaker verification called ELISA.

• BIOMET project: collaboration with the French GET (Groupement des Ecoles de Télécommunication). Collection of a multimodal person authentication database.

• COST 275 action: Speaker Verification over the Internet.

• COST 277 action: Non-linear Speech processing.

8. Past Projects

• SYMPATEX: during my one year stay at ENST, Paris, I was working on the RNRT SYMPATEX project, (SYstème unifié de Messagerie PArole-TEXte), related to very low bit rate speech coding (below 400 bits per second), using automatic segmentation techniques.

• ``How May I Help You'' (during my stay at AT&T Labs). The major concern of this project is to develop spoken dialog systems for automated services. The current methodology for constructing spoken language systems involves collecting large speech corpora for each task. The collection, transcription, labeling and exploitation of such corpora is a major bottleneck in application development. Thus, it is of great interest to develop methods for automatically learning vocabulary, grammar and semantics from a speech corpus without transcription. I was working on developing and evaluating methods for learning spoken language using un-transcribed databases.

• Speaker Recognition in Telephony - European Cost 250 action .



• POLYCOST database: In the framework of the COST 250 action, I was actively involved in the collection and annotation of a common speaker verification database. This database was also made available for all the research community.

9. Publications

Publications in Journals

Conference Proceedings