Methods for neural network hyperparameter optimization and meta-modeling are
computationally expensive due to the need to train a large number of model
configurations. In this paper, we show that standard frequentist regression
models can predict the final performance of partially trained model
configurations using features based on network architectures, hyperparameters,
and time-series validation performance data. We empirically show that our
performance prediction models are much more effective than prominent Bayesian
counterparts, are simpler to implement, and are faster to train. Our models can
predict final performance in both visual classification and language modeling
domains, are effective for predicting performance of drastically varying model
architectures, and can even generalize between model classes. Using these
prediction models, we also propose an early stopping method for hyperparameter
optimization and meta-modeling, which obtains a speedup of a factor up to 6x in
both hyperparameter optimization and meta-modeling. Finally, we empirically
show that our early stopping method can be seamlessly incorporated into both
reinforcement learning-based architecture selection algorithms and bandit based
search methods. Through extensive experimentation, we empirically show our
performance prediction models and early stopping algorithm are state-of-the-art
in terms of prediction accuracy and speedup achieved while still identifying
the optimal model configurations.

本文提出了一种利用标准频率回归模型通过网络架构、超参数和时间序列验证性能数据来预测部分训练模型配置的最终性能的方法，并证明该方法在视觉分类和语言建模领域中是有效的。同时，我们提出了一种早期停止方法，可用于超参数优化和元模建模，加速了模型配置的优化过程，该方法在强化学习 - based 架构选择算法和基于贝叶斯思想的搜索方法中均可无缝集成。