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首页> 外文期刊>Journal of Biomechanics >An application of the Dempster-Shafer theory of evidence to the classification of knee function and detection of improvement due to total knee replacement surgery.
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An application of the Dempster-Shafer theory of evidence to the classification of knee function and detection of improvement due to total knee replacement surgery.

机译：Dempster-Shafer证据理论在膝关节功能分类和全膝关节置换术导致的病情改善检测中的应用。

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摘要

This paper utilises a novel method for the classification of subjects with osteoarthritic and normal knee function. The classification method comprises a number of different components. Firstly, the method exploits the Dempster-Shafer theory of evidence allowing for a degree of ignorance in the subject's classification, i.e., a level of uncertainty as to whether a gait variable indicates osteoarthritis or not. Secondly, the inclusion of simplex plots allows both the classification of a subject, and the contribution of each associated gait variable to that classification, to be represented visually. As a result, the method is further able to highlight periodic changes in a subject's knee function due to total knee replacement surgery and subsequent recovery. The visual representation enables a simple clinical interpretation of the results from the quantitative analysis.
机译：本文利用一种新颖的方法对骨关节炎和正常膝关节功能的受试者进行分类。分类方法包括许多不同的组件。首先，该方法利用了Dempster-Shafer的证据理论，使得受试者的分类有一定程度的无知，即关于步态变量是否表示骨关节炎的不确定性水平。其次，包含单纯形图可以直观地表示对象的分类以及每个相关步态变量对该分类的贡献。结果，该方法还能够突出由于全膝关节置换手术和随后的恢复而导致的受试者的膝盖功能的周期性变化。视觉表示使对定量分析结果的简单临床解释成为可能。

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