On the Derivational Entropy of Left-to-Right Probabilistic Finite-State Automata and Hidden Markov Models Joan Andreu Sánchez author Martha Alicia Rocha author Verónica Romero author Mauricio Villegas author 2018-04 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal sanchez-etal-2018-derivational 10.1162/COLI_a_00306 https://aclanthology.org/J18-1002/ 2018-04 44 1 17 37