I am a Senior Researcher in the Department of Computer and Information Science (CIS) of the School of Engineering and Applied Science at the University of Pennsylvania, and member of the UPenn NLP group. I am currently on leave from the French National Research Center (CNRS) where I hold a tenure researcher position.

My research interests focus on computational linguistics and natural language processing, and specifically in the area of semantics with the goal of modeling the meaning of natural language. I am working on designing meaning representations and mechanisms for reasoning over them, and also on analyzing the semantic information encoded by large language models and devising ways to enhance and complement it. I am interested in both theoretical and application-oriented aspects of natural language semantics and commonsense reasoning, and in cognitive aspects of language learning.