serving.py 文件源码

def observed_perplexity(self):
        """Compute perplexity = exp(entropy) of observed variables.

        Perplexity is an information theoretic measure of the number of
        clusters or observed classes. Perplexity is a real number in the range
        [1, dim[v]], where dim[v] is the number of categories in an observed
        categorical variable or 2 for an ordinal variable.

        Returns:
            A [V]-shaped numpy array of perplexity.
        """
        return self._server.observed_perplexity(self._counts)