epsilon.py 文件源码

def __call__(self, t, history):
        try:
            return self._look_up[t]
        except KeyError:
            df_weighted = history.get_weighted_distances(None)
            median = weighted_median(
                df_weighted.distance.as_matrix(), df_weighted.w.as_matrix())
            self._look_up[t] = median * self.median_multiplier
            eps_logger.debug("new eps, t={}, eps={}"
                             .format(t, self._look_up[t]))
            return self._look_up[t]