Abdellah Yousfi, Associate Professor (of informatics) to Faculty of Juridical, economic and social Sciences, Vth Mohammed University Souissi, Rabat, Morocco. Ph.D. in automatic speech recognition (2001) in Faculty of sciences, First Mohammad Univesity, Oujda, Morocco. - 2003-2006 : professor at the Institute of Studies and Research for Arabization during this period, it has worked on of Natural Language processing of Arabic texts. - 2004 : publication of a book (in French) on the natural language processing (text and speech). My research interests include: automatic labeling of Arabic texts, morphological analysis, and information retrieval. For more detail see www.chez.com/yousfi24/