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为探索用Ｆｕｚｙ图论法评价从事特殊劳动作业人员的心脏功能，研究了两种不同类型的特殊劳动作业人员。第一类３１人，直接用Ｆｕｚｙ图论进行研究，用最大支撑树法进行分类。Ｆｕｚｙ图可分成三部分，分别对应好、较好、最好三种类型的心脏功能。第二类２４人，采用１６个指标，由于指标多，且样本量小，所以先用主成分分析法进行信息提取，综合成６个指标，然后在６个综合指标的基础上，用Ｆｕｚｙ图论进行分析。２４名被试者可分成两部分，分别对应好和较好两种心脏功能状态。两批被试者的分类结果都可在医学上得到可信且令人满意的解释。
To explore the use of Fuzy diagram theory to evaluate the cardiac function of special labor practitioners, two different types of special labor practitioners were studied. The first type of 31 people, direct research with Fuzy graph theory, using the maximum support tree method for classification. Fuzy chart can be divided into three parts, corresponding to the better, better, best three types of heart function. The second group of 24 people, using 16 indicators, due to many indicators, and the sample size is small, so the first principal component analysis of information extraction, integrated into six indicators, and then on the basis of six comprehensive indicators, Fuzy chart On the analysis. Twenty-four subjects were divided into two groups, corresponding to better and better cardiac function. The classification results for both groups of subjects were plausibly and satisfactorily explained medically.