algorithms.py 文件源码

python
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项目:scikit-cmeans 作者: bm424 项目源码 文件源码
def fit(self, x):
        """Optimizes cluster centers by restarting convergence several times.

        Parameters
        ----------
        x : :obj:`np.ndarray`
            (n_samples, n_features)
            The original data.

        """
        objective_best = np.infty
        memberships_best = None
        centers_best = None
        j_list = []
        for i in range(self.n_init):
            self.centers = None
            self.memberships = None
            self.converge(x)
            objective = self.objective(x)
            j_list.append(objective)
            if objective < objective_best:
                memberships_best = self.memberships.copy()
                centers_best = self.centers.copy()
                objective_best = objective
        self.memberships = memberships_best
        self.centers = centers_best
        return j_list
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