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Large Language Models Meet Knowledge Graphs for Question Answering: Synthesis and Opportunities

Chuangtao Ma, Yongrui Chen, Tianxing Wu, Arijit Khan, Haofen Wang

2025-05-30

Large Language Models Meet Knowledge Graphs for Question Answering:
  Synthesis and Opportunities

Summary

This paper talks about how researchers are combining large language models, like the ones that power chatbots, with knowledge graphs, which are like giant webs of facts, to help AI answer complicated questions more accurately.

What's the problem?

The problem is that while language models are good at understanding and generating text, they can sometimes give wrong or made-up answers because they don't always have access to reliable, structured information.

What's the solution?

The researchers reviewed and organized different ways that people have tried to connect language models with knowledge graphs. By bringing these two technologies together, the AI can use both its language skills and a strong base of factual knowledge to answer tough questions better.

Why it matters?

This is important because it could make AI much smarter and more trustworthy, especially for things like research, education, and customer support, where getting the right answer really matters.

Abstract

This survey categorizes and analyzes methods for integrating large language models with knowledge graphs to improve their performance on complex question-answering tasks.