Date: Wednesday, 16th January 2019 at 2pm Place: LORIA, room A008 Speaker: Md Sahidullah (Inria – LORIA, Multispeech team)Title: Speaker embeddings: from i-vector to x-vector and beyondAbstract:
Speaker recognition is the task of recognizing a human from his/her voice. The state-of-the-art speaker recognition technology uses a speaker embedding method for representing a speech utterance of arbitrary length in the form of a fixed-dimensional vector. The recent advancements in deep neural network (DNN) research have enabled the development of robust and efficient speaker embedding techniques. In this talk, I will first provide a brief overview of speaker recognition basics. It will be followed by the description of the conventional speaker embedding method popularly known as i-vector. Then I will present various attempts to develop speech signal representations with DNN-based discriminative training. I will explain the recently introduced x-vector embedding which showed promising speaker recognition performance. This talk will end with a discussion on potential future directions in the speaker embedding research including our ongoing work.
Angeliki Monnier on Tuesday, May 28
Date: Tuesday, 28th May 2019 at 2pm Place: LORIA, room A008 Speaker: Angeliki Monnier (Université de Lorraine – CREM)
Title: Understanding ICT uses as “habitus”?
This presentation will address the uses of information and communication technologies (ICT), particularly social media, as “habitus”, inspired by Pierre Bourdieu’s Field Theory. My thesis draws on an empirical study, conducted on the professional network LinkedIn, which focused on discussion groups held by Greek and French expatriates, respectively.
More particularly, analysis has shown that discussions are not conducted in the same way between Greek and French expatriates. For the former, the question is the image of the country, tarnished by the economic crisis. For the latter, it is the direct contact with the Other, on the background of the French colonial past, which colors the discussions.
My argument is that the representations and “patterns of thought” that determine how Greek and French expatriates get involved in a discussion group within a professional social media are socio-historically determined and could be associated to distinct habitus. Following Pierre Bourdieu’s theory, these divergences could be related to the positions that Greece and France hold within the international migration field.