Finite State Transducers Approximating Hidden Markov Models Andre Kempe author 1997-07 text 35th Annual Meeting of the Association for Computational Linguistics and 8th Conference of the European Chapter of the Association for Computational Linguistics Association for Computational Linguistics Madrid, Spain conference publication kempe-1997-finite 10.3115/976909.979676 https://aclanthology.org/P97-1059/ 1997-07 460 467