Papers › K-COMP: Retrieval-Augmented Medical Domain Question Answering With Knowledge-Injected...
K-COMP: Retrieval-Augmented Medical Domain Question Answering With Knowledge-Injected Compressor
Jeonghun Cho, Gary Geunbae Lee
Retrieval-augmented question answering (QA) integrates external information, and thereby increases the QA accuracy of reader models that lack domain knowledge. However, documents retrieved for closed domains require high expertise, so the reader model may have difficulty fully comprehending the text. Moreover, the retrieved documents contain thousands of tokens, some unrelated to the question. As a result, the documents include some inaccurate information, which could lead the reader model to mistrust the passages and could result in hallucinations. To solve these problems, we propose K-COMP (Knowledge-injected compressor) which provides the knowledge required to answer correctly. The compressor automatically generates the requisite prior knowledge to facilitate the answering process prior to the compression of retrieved passages. Subsequently, the passages are compressed autoregressively, with the generated knowledge being integrated into the compression process. This process ensures alignment between the question intent and the compressed context. By augmenting this prior knowledge and concise context, the reader models are guided toward relevant answers and trust the context.
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