Alexandra Butoi, Brian DuSell, Tim Vieira, Ryan Cotterell, David Chiang
TL;DR本研究通过改进 Lang 算法,开发了直接处理加权下推自动机的新算法,可以更有效地运用于自然语言处理中,并能够在空间和时间效率上取得优化。
Abstract
weighted pushdown automata (WPDAs) are at the core of many natural language
processing tasks, like syntax-based statistical machine translation and
transition-based dependency parsing. As most existing dynamic programmi