自动词语简化方法综述

Automatic Lexical Simplification

自动词语简化是用简单、同等意义的词语替代句子中复杂词的过程,是文本简化中的一个重要研究方向。随着自然语言处理技术的快速发展,词语简化方法也在不断更新与变化。该文对词语简化方法的相关研究进行了梳理,先对词语简化的整体框架进行解释,然后将词语简化方法总结为语言数据库、自动规则、词嵌入模型、混合模型和预处理语言模型。接着对汉语词语简化研究所面临的难点进行论述。最后,对词语简化方法的发展方向进行了展望和总结。

Automatic Lexical Simplification(LS)is the process of replacing complex words in a given sentence with simpler alternatives of equivalent meaning,which is an important research direction in text simplification.With the rapid development of natural language processing technology,LS methods are rapidly updated and changed.This paper surveys the existing works on lexical simplification.After introducing the framework of lexical simplification,we summary the query linguistic databases,automatic rules,word embeddings,merging model,and BERT for LS methods.Finally we discuss the difficulties of the study of lexical simplification,and provide the future developments of LS and draw our conclusions.