Evaluator.py 文件源码

def diversity(self):
        rec=self.provider.provideAll()
        data=self.provider.provideIndexMatrix()
        count=len(data);distance=0.0
        for i in range(count):
            for j in range(i+1,count):
                distance+=hamming_loss(data[i],data[j])
        return 2*distance/(count*(count-1))