Variance of Average Surprisal: A Better Predictor for Quality of Grammar from Unsupervised PCFG Induction Lifeng Jin author William Schuler author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication jin-schuler-2019-variance 10.18653/v1/P19-1235 https://aclanthology.org/P19-1235/ 2019-07 2453 2463