论文标题
使用机器学习预测MPEMBA效应
Predicting the Mpemba Effect Using Machine Learning
论文作者
论文摘要
在非平衡热力学框架中,可以使用马尔可夫动力学研究MPEMBA效应。在包括Ising模型在内的多种系统中,可以观察到马尔可夫MPEMBA效应。我们证明,可以通过几种机器学习方法在Ising模型中预测Markovian Mpemba效应:决策树算法,神经网络,线性回归和通过Lasso方法进行非线性回归。比较这些方法的阳性和负准确性。此外,我们发现机器学习方法可用于准确地推断出训练范围之外的数据。仅在仅根据未发生mpemba效应的数据训练MPEMBA效应时,甚至可以预测它们的存在。这表明有关哪些系数导致MPEMBA效应的信息包含在未发生结果的系数中。此外,神经网络可以预测,即使仅在负面$ j $上训练了对应于抗铁磁性模型的模型,即使它们仅接受过培训,也不会对正面$ j $进行mpemba效应。所有这些结果表明,可以在复杂的计算昂贵系统中预测MPEMBA效应,而无需对特征向量的明确计算。
The Mpemba Effect can be studied with Markovian dynamics in a non-equilibrium thermodynamics framework. The Markovian Mpemba Effect can be observed in a variety of systems including the Ising model. We demonstrate that the Markovian Mpemba Effect can be predicted in the Ising model with several machine learning methods: the decision tree algorithm, neural networks, linear regression, and non-linear regression with the LASSO method. The positive and negative accuracy of these methods are compared. Additionally, we find that machine learning methods can be used to accurately extrapolate to data outside the range which they were trained. Neural Networks can even predict the existence of the Mpemba Effect when they are trained only on data in which the Mpemba Effect does not occur. This indicates that information about which coefficients result in the Mpemba Effect is contained in coefficients where the results does not occur. Furthermore, neural networks can predict that the Mpemba effect does not occur for positive $J$, corresponding to the ferromagnetic ising model even when they are only trained on negative $J$, corresponding to the anti-ferromagnetic ising model. All of these results demonstrate that the Mpemba Effect can be predicted in complex, computationally expensive systems, without explicit calculations of the eigenvectors.