基于规则的双重否定识别——以“不V1不V2”为例

Rule-based Double Negation Recognition:Taking“不V1不V2”as an Example

“不V1不V2”是汉语中典型的双重否定结构形式之一,其包括“不+助动词+不+V2”(不得不去)、“不+是+不+V2”(不是不好)、述宾结构“不+V1+……+不+V2”(不认为他不去)等多种双重否定结构,情况复杂。该文以“不V1不V2”为例,结合“元语否定”“动词叙实性”“否定焦点”等概念,对“不V1不V2”进行了考察,制定了“不V1不V2”双重否定结构的识别策略。根据识别策略,该文设计了双重否定自动识别程序,并在此过程中补充了助动词表、非叙实动词表等词库。最终,对28033句语料进行了识别,识别正确率为98.21%,召回率约为93.10%。

“不v1不v2”is one of the typical double negation structures with substantial complexity in Chinese.It includes three sub patterns:“不+助动词+不+v2”(不得不去),“不+是+不v2”(不是不好),and“不v1…不v2”.Taking“不v1不v2”as an example,with the conceptions of“non-truth-functional negation”,"factuality of verbs"and"negation focus",this paper formulates a strategy for automatically recognizing the double negation structure of“不v1不v2”.We also list out the auxiliary verb list and the non-factual verb,and further develop an automatic double negation recognition system.Tested with 28033 sentences,the proposed method achieves 97.89%recognition accuracy and 93.10%recall rate.