# Learning When Not to Answer: a Ternary Reward Structure for Reinforcement Learning Based Question Answering

> Research article (Proceedings of the 2019 Conference of the North, 2019) · cited 23× · AI/ML

**Wikidata**: [openalex:W2929985644](https://www.wikidata.org/wiki/openalex:W2929985644)  
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