This book constitutes the thoroughly refereed joint post-proceedings of three international workshops organized by the Japanese Society for Artificial Intelligence, held in Tokyo, Japan in June 2006 during the 20th Annual Conference JSAI 2006.
The volume starts with 8 award winning papers of the JSAI 2006 main conference that are presented along with the 21 revised full workshop papers, carefully reviewed and selected from the three co-located international workshops for inclusion in the volume. The workshop papers cover topics from areas such as logic and engineering of natural language semantics (LENLS 2006), learning with logics and logics for learning (LLLL 2006) and risk mining (RM 2006).