Plan, Activity, and Intent Recognition (PAIR) 2009

@IJCAI 2009

Important Dates

Paper submission deadline: March 6, 2009April 2, 2009
Notification of acceptance: April 17, 2009
Camera-ready due: May 8, 2009
Workshop: July 11, 2009

Workshop Description

Plan recognition, activity recognition, and intent recognition all involve making inferences about other actors from observations of their behavior, i.e., their interaction with the environment and with each other. The observed actors may be software agents, robots, or humans. This synergistic area of research combines and unifies techniques from user modeling, machine vision, intelligent user interfaces, human/computer interaction, autonomous and multi-agent systems, natural language understanding, and machine learning. It plays a crucial role in a wide variety of applications including: This wide-spread diversity of applications and disciplines, while producing a wealth of ideas and results, has unfortunately contributed to fragmentation in the field, as researchers publish relevant results in a wide spectrum of journals and conferences. This workshop seeks to bring together researchers and practitioners from diverse backgrounds, to share in ideas and recent results. It will aim to identify important research directions and to identify opportunities for synthesis and unification. The workshop will especially emphasize a discussion of challenges and trends: Reasoning with incomplete or incorrect knowledge of others, learning activity and behavioral models from interaction and observations, agent modeling on the web and in open multi-agent systems, modeling multiple agents and the interactions between them, inferring the capabilities of agents from observations, and using agent modeling for coordination and teamwork.


Contributions are sought in the following areas of research: Due to the diversity of disciplines engaging in this area, related contributions in other fields, are also welcome.


The workshop will be split 50/50 between a series of research presentations, organized into topical sessions (topics to be decided based on submissions) and two interdisciplinary panels 1) seeking to highlight research contributions and challenges unifying the different sub-areas, and 2) to discuss the relevance of multiple approaches to different sub-areas to better understand the actual differences between the sub-areas and problems needing more focus.


We welcome submissions describing either relevant work or proposals for discussion topics that will be of interest to the workshop. Submissions are accepted in PDF format only, using the IJCAI formatting guidelines. Submissions must be no longer than eight pages in length, including references and figures. Please e-mail submissions to

Past Workshops

Organizing Committee

Christopher Geib [Primary contact] ( University of Edinburgh
David V. Pynadath ( USC ICT
Hung Bui ( SRI
Gita Sukthankar ( University of Central Florida

David V. Pynadath
Last modified: Wed May 23 15:51:11 PDT 2007