ultraopt.multi_fidelity.iter.rank_iter 源代码
import numpy as np
from ultraopt.multi_fidelity.iter.base_iter import BaseIteration
[文档]class RankReductionIteration(BaseIteration):
def _advance_to_next_stage(self, config_ids, losses):
"""
RankReductionIteration simply continues the best based on the current loss.
"""
ranks = np.argsort(np.argsort(losses))
return ranks < self.num_configs[self.stage]
# todo 实现 重要性采样 ImportanceSamplingIteration