Восстановление пустых узлов

This paper describes a simple pattern- matching algorithm for recovering empty nodes and identifying their co-indexed an- tecedents in phrase structure trees that do not contain this information. The pat- …...

This paper describes the development of QuestionBank, a corpus of 4000 parse- annotated questions for (i) use in training parsers employed in QA, and (ii) evalua- tion of question parsing. …...