arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.08549cs.AI
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医学语篇中基于贝叶斯网络的知识表示与诊断推理

Knowledge representation and diagnostic inference using Bayesian networks in the medical discourse

TU Dresden(德累斯顿工业大学)

Sebastian Flügge, Sandra Zimmer, Uwe Petersohn

摘要:

针对不确定性条件下的诊断推理问题,研究了贝叶斯网络.该方法是基于一个足够的统一表示的必要的知识。这包括存储在知识库中的一般知识和基于经验的具体知识。在知识处理方面,采用了基于概念推理和基于实例推理相结合的问题求解方法。基于概念的推理用于诊断、治疗和药物推荐以及对一般知识的评价。以具体病人病例为形式的推理是通过基于病例的推理来处理的。此外,贝叶斯网络的使用允许处理不确定性,模糊性和不完整性。因此,有效的一般概念可以根据它们的概率来发布。为此,各种推理机制的介绍,并随后在一个开发的原型的上下文中进行评估。测试被用来评估网络诊断的分类。

英文摘要:

For the diagnostic inference under uncertainty Bayesian networks are investigated. The method is based on an adequate uniform representation of the necessary knowledge. This includes both generic and experience-based specific knowledge, which is stored in a knowledge base. For knowledge processing, a combination of the problem-solving methods of concept-based and case-based reasoning is used. Concept-based reasoning is used for the diagnosis, therapy and medication recommendation and evaluation of generic knowledge. Exceptions in the form of specific patient cases are processed by case-based reasoning. In addition, the use of Bayesian networks allows to deal with uncertainty, fuzziness and incompleteness. Thus, the valid general concepts can be issued according to their probability. To this end, various inference mechanisms are introduced and subsequently evaluated within the context of a developed prototype. Tests are employed to assess the classification of diagnoses by the network.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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