【摘要】 随着知识工程的研究和应用,近年来已提出许多似然推理模型,但是它们中的大多数都不能很好地处理证据之间的相关性。本文首先给出了相关性的定义及其表示法,并推广了概率计算公式,使它能比较合理地处理相关性、接着将新的理论引入到MYCIN的CF推理模型中去,并比较了新旧CF似然推理公式,当给定的相关性为0或1时,新公式退化为旧公式;最后论述了新公式处理相关性时的精确性和实用性。更多还原

【Abstract】 Following the research and application of AI, many uncertain inference models have been proposed in recent years, but most of them lack the theories or methods for handling the relativity and dependence among pieces of evidence. In this paper, the relativity of evidence (REs) has been defined and the probability theory has also been extended to handle REs more reasonably. The new method is then recommended to MYCIN’s certainty factor model. By comparison, the new model is found to be more practical and accurate.更多还原