Analogy is NP-hard

Shinji Furuya, Satoru Miyano. Analogy is NP-hard. In Setsuo Arikawa, Akira Maruoka, Taisuke Sato, editors, Algorithmic Learning Theory, 2nd International Workshop, ALT '91, Tokyo, Japan, October 23-25, 1991, Proceedings. pages 207-212, Ohmsha, 1991.

Abstract

Abstract is missing.