高级检索

    基于信息检索的知识库问答综述

    Review of Knowledge Base Question Answering Based on Information Retrieval

    • 摘要: 知识库问答旨在从知识库中检索相关信息用于模型推理,最终返回准确简洁的答案. 近年来随着深度学习和大语言模型的发展,基于信息检索的知识库问答研究成为焦点,涌现出许多新颖方法. 从模型方法、数据集等不同方面对基于信息检索的知识库问答研究进行梳理总结. 首先对知识库问答的研究意义和相关定义进行介绍. 然后按照模型执行过程从问句解析、信息检索、模型推理、答案生成这4个阶段阐述每个阶段面临的关键问题以及典型解决方法,对每个阶段所使用到的共性网络模块进行总结. 其次从模型整体出发针对基于信息检索的知识库问答方法的不可解释性进行分析梳理. 此外,对不同特点的相关数据集和不同阶段的基线模型进行了分类介绍与总结. 最后对基于信息检索的知识库问答每个执行阶段以及该领域整体发展方向进行了总结和展望.

       

      Abstract: Knowledge base question answering is a method of retrieving relevant information from the knowledge base for model inference, finally return accurate and concise answers. In recent years, with the development of deep learning and large language models, knowledge base question answering based on information retrieval has become a focus, and many novel research methods have emerged. We summarize and analyze the methods of knowledge base question answering based on information retrieval from different aspects such as model methods and datasets. Firstly, we introduce the research significance and related definitions of knowledge base question answering. Then, according to the model execution process, explain the key problems and typical solutions faced in each stage from four stages: question parsing, information retrieval, model inference, and answer generation, and summarize the common network modules used in each stage. Then, starting from the overall model, analyze and sort out the inexplicability of knowledge base question answering based on information retrieval methods. In addition, relevant datasets with different characteristics and baseline models at different stages are classified and summarized. Finally, the summary and outlook are provided on each execution stage of knowledge base question answering based on information retrieval, as well as the overall development direction of the field.

       

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