Improving Question Generation With to the Point Context
Table 2: Comparisons between sentences and answer-relevant relations. Overlapped words are those non-stop tokens co-occurring in the source (sentence/relation) and the target question. Copy ratio means the proportion of source tokens that are used in the question.
['[EMPTY]', 'Sentence', 'Answer-relevant Relation']
We find that the tokens in relations are 61% more likely to be used in the target question than the tokens in sentences, and thus they are more to the point. On the other hand, on average the sentences contain one more question token than the relations (1.86 v.s. 2.87). Therefore, it is still necessary to take the original sentence into account to generate a more accurate question.