Manfred K. Warmuth. When Is There a Free Matrix Lunch?. In Nader H. Bshouty, Claudio Gentile, editors, Learning Theory, 20th Annual Conference on Learning Theory, COLT 2007, San Diego, CA, USA, June 13-15, 2007, Proceedings. Volume 4539 of Lecture Notes in Computer Science, pages 630-632, Springer, 2007. [doi]
Abstract is missing.