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Paper Number

1134

Paper Type

Short

Description

Question answer (QA) assistants are vital tools to address users’ information needs in healthcare. Knowledge graphs (KGs) and language models (LMs) have shown promise in building QA systems, but face challenges in their integration, and performance. Motivated thus, we take the case of a specific disease, skin eczema, to design a QA system combining KG and LM approaches. We present design iterations for systematically developing the KG, then fine-tuning a LM, and finally carrying out joint reasoning over both. We observe that while KGs are effective for fact finding, fine-tuned LMs perform better at answering complex queries. Initial results suggest that combining KG and LM approaches can improve the performance of the system. Our study contributes by laying out the design steps and developing a QA system that addresses various gaps in the related literature. Our future plan is to refine these techniques towards building a full-fledged healthcare QA assistant.

Comments

16-HealthCare

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Dec 12th, 12:00 AM

Designing a Healthcare QA Assistant: A Knowledge Based Approach

Question answer (QA) assistants are vital tools to address users’ information needs in healthcare. Knowledge graphs (KGs) and language models (LMs) have shown promise in building QA systems, but face challenges in their integration, and performance. Motivated thus, we take the case of a specific disease, skin eczema, to design a QA system combining KG and LM approaches. We present design iterations for systematically developing the KG, then fine-tuning a LM, and finally carrying out joint reasoning over both. We observe that while KGs are effective for fact finding, fine-tuned LMs perform better at answering complex queries. Initial results suggest that combining KG and LM approaches can improve the performance of the system. Our study contributes by laying out the design steps and developing a QA system that addresses various gaps in the related literature. Our future plan is to refine these techniques towards building a full-fledged healthcare QA assistant.

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