Exploring Artificial Intelligence in the New Millennium offers a unique presentation of the entire spectrum of ongoing research in Artificial Intelligence. Each self-contained chapter is based on a presentation given at IJCAI 2001. The speakers, all leading researchers in their fields, were chosen by the IJCAI Distinguished Paper Track Committee because of their outstanding work in robotics, vision, knowledge representation, machine learning, planning and other areas of AI research. The authors have broadened the scope of their original presentations and have updated and revised their talks especially for this publication. Individually, the lectures provide a significant exploration of a key area in AI research. Taken together they offer a rich survey of the field as a whole: its core issues, progress, and future directions. Exploring Artificial Intelligence in the New Millennium provides researchers and graduate students in AI with essential reading that fosters discussion across the sub-areas of AI.