Author Description

This book constitutes the thoroughly refereed joint post-proceedings of the 17th and 18th annual conferences of the Japanese Society for Artificial Intelligence, JSAI 2003 and JSAI 2004, and co-located international workshops, held in Niigata, Japan in June 2003 and in Kanazawa, Japan in May/June 2004 respectively. It features a number of award winning papers as well as revised full workshop papers from these conferences.