epsilon.py 文件源码

def initialize(self, sample_from_prior, distance_to_ground_truth_function):
        super().initialize(sample_from_prior,
                           distance_to_ground_truth_function)
        eps_logger.debug("calc initial epsilon")
        # calculate initial epsilon if not given
        if self._initial_epsilon == 'from_sample':
            distances = sp.asarray([distance_to_ground_truth_function(x)
                                    for x in sample_from_prior])
            eps_t0 = sp.median(distances) * self.median_multiplier
            self._look_up = {0: eps_t0}
        else:
            self._look_up = {0: self._initial_epsilon}

        eps_logger.info("initial epsilon is {}".format(self._look_up[0]))