METGEN: A Module-Based Entailment Tree Generation Framework for Answer Explanation (2022.findings-naacl)
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| Challenge: | Existing work on QA explanation proposes to explain the answers with entailment trees composed of multiple enlargement steps. |
| Approach: | They propose a Module-based Entailment Tree GENeration framework that has multiple modules and a reasoning controller. |
| Outcome: | The proposed framework outperforms state-of-the-art models on the standard benchmark with only 9% of the parameters. |
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