Download or read book KR Proceedings, Twelfth International Conference on Principles of Knowledge Representation and Reasoning written by Fangzhen Lin and published by . This book was released on 2010 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Twelfth International Conference on Principles of Knowledge Representation and Reasoning held in Toronto, Ontario, Canada, May 9-13, 2010.