University of Delaware. Rehabilitation engineering, writing tool for American Sign Language, natural language generation, text summarization, graph summarization.

Phd student at Istituto per la Ricerca Scientifica e Tecnologica (IRST) in Italy.

University of Colorado, Boulder. Empirical metaphor research, latent semantic analysis, information retrieval, co-author of "Speech and Language Processing" with Dan Jurafsky.

Spanish Council for Scientific Research (CSIC) and Deputy Director of the Artificial Intelligence Research Institute of the CSIC. AI and music, qualitative approaches to landmark-based robot navigation.

Stanford University. Probabilistic parsing, grammar induction, text categorization and clustering, electronic dictionaries, information extraction and presentation, and linguistic typology.

Kingston University. Senior lecturer and member of the Digital Imaging Research Centre. Research in 3D pose recovery, motion analysis and multi-camera tracking.

Washington University in St. Louis. AI and the law, models of negotiation, modeling legal argument.

Ohio University. School of Electrical Engineering and Computer Science. Medical image analysis, computer vision.

MIT Media Laboratory. Philosophically motivated AI, commonsense reasoning, aesthetics and AI, assistive software agents, lexical semantics, story understanding.

Rutgers. Planning under uncertainty, markov decision processes, reinforcement learning, latent semantic indexing, text retrieval.