Retrieving Contextual Information for Long-Form Question Answering using Weak Supervision (2024.findings-emnlp)
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| Challenge: | Existing retrievers for long-form question answering are optimized for information that directly targets the question, missing out on contextual information. |
| Approach: | They propose to use weak supervision techniques to optimize retrieval for contextual information. |
| Outcome: | The proposed techniques improve the end-to-end QA performance on a conversational QA dataset. |
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