Laboratoire d'Informatique de Grenoble (UMR 5217)
Université Grenoble Alpes
Bâtiment IMAG – 700 avenue Centrale
Domaine Universitaire – 38401 St Martin d'Hères
sylvie.pesty@imag.fr
Office: 365
Phone: (+33) 4 76 51 46 26

I am full-time Professor at University of Grenoble-Alps. I received my Engineering degree and Ph.D. degree from UTC (University of Technology of Compiegne) and my accreditation to Direct Research (HDR) in Computer Science from Grenoble INP. I am currently a researcher at the LIG laboratory (Grenoble Informatics Laboratory) and Assistant Director of the IUT2 (University Institute of Technology 2). I conduct my research in the fields of Multi-Agent Systems, Artificial Intelligence and Affective Computing. My expertise is particularly linked to cognitive architectures and to social and affective Human-Robot Interaction and Human-Virtual Character Interaction.

A major objective in the area of information technologies is to develop interactive devices that are more attractive and closer to the users and that can be considered as believable interlocutors. This leads to an increasing interest in research works on Artificial Intelligence and Affective Computing, with particular attention to Social Robots, Virtual Characters and more generally to Artificial Companions. Artificial companions can be defined as socially, affective and interactive believable artificial interlocutors with which the user builds a kind of life-long relationship.

Considering such issues, we intended to contribute both at the theoretical level and the application level. Thus, we have investigated the relations between emotions and communication and proposed a Multimodal Conversational Language (MCL) that allows an artificial companion to express in a expressive manner, verbal and non-verbal, and to interact in a more human-like manner. We have also defined a Cognitive and Affective Architecture (BDI-like reasoning approach integrating Emotion) to deduce the communicative intention of an artificial companion from its mental states.

Our main current concern is the way to personalise robot’s behaviour in a particular context. We aim to contribute on both questions of personalisation and context adaptation of companion robots. We invest the notion of style which is a psychological concept that corresponds to the mannerism used to play a particular role in a particular social context.

We implement our technologies in differents social robots and virtual characters :

• Reeti, from Robopec : an expressive head,
• Nao, from Aldebaran, a small humanoid robot, 58 cm high,
• Greta, a SAIBA-compliant ECA from Telecom ParisTech,
• Mary, a virtual character from the M.A.R.C. platform, LIMSI (Paris-Orsay).

We used them in experiments aimed at assessing the benefits of our approaches in terms of perceived sincerity, believability and acceptability of a companion interacting with a human user. Our main issue is social interaction between humans and artificial companions in daily life situations (guarding, playing, assistance, coaching, comforting, teaching,…)