His research interests revolve around semantic and discourse analysis, discourse modeling, knowledge acquisition from corpora, hybrid approaches (statistics and linguistics), and NLP applications such as summarization, and reader and writer assistance. As part of its research activities he is involved in various research projects among them : ANR PIITHIE, ANR C-Mantic, Region Miles. He is a member of the editorial board of Discours.revues.org journal. In December 2008 he has been selected as an IBM Initiative award recipient for his proposal about building a French speaking community around the Apache UIMA framework.