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arXiv 2302.08347cond-mat.dis-nncond-mat.stat-mechcs.LGstat.ML
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成对相互作用自旋系统玻尔兹曼分布的自回归神经网络架构

The autoregressive neural network architecture of the Boltzmann distribution of pairwise interacting spins systems

Ecole Polytechnique Fédérale de Lausanne (EPFL)(洛桑联邦理工学院)

Indaco Biazzo

AI总结:

本研究将二元成对相互作用系统的玻尔兹曼分布精确映射为自回归形式,构建了具有明确物理意义的ARNN架构,并利用统计物理技术从平均场模型推导出性能更优的新架构,为神经网络架构设计提供了物理视角。

摘要:

生成式自回归神经网络(ARNNs)最近在图像和语言生成任务中展示了卓越的结果,促进了生成模型在科学和商业应用中日益增长的普及。这项工作将二元成对相互作用系统的玻尔兹曼分布精确映射为自回归形式。所得的ARNN架构的第一层权重和偏置对应于哈密顿量的耦合和外场,具有广泛使用的结构,如残差连接和具有明确物理意义的循环架构。此外,该架构的显式公式化使得能够使用统计物理技术为特定系统推导新的ARNN。作为示例,从两个著名的平均场系统——Curie-Weiss模型和Sherrington-Kirkpatrick模型——推导出了新的有效ARNN架构,与其它常用架构相比,在近似相应物理模型的玻尔兹曼分布方面表现出优越的性能。系统物理与神经网络架构之间建立的这种联系,为推导不同相互作用系统的新架构以及从物理角度解释现有架构提供了一种手段。

英文摘要:

Generative Autoregressive Neural Networks (ARNNs) have recently demonstrated exceptional results in image and language generation tasks, contributing to the growing popularity of generative models in both scientific and commercial applications. This work presents an exact mapping of the Boltzmann distribution of binary pairwise interacting systems into autoregressive form. The resulting ARNN architecture has weights and biases of its first layer corresponding to the Hamiltonian's couplings and external fields, featuring widely used structures such as the residual connections and a recurrent architecture with clear physical meanings. Moreover, its architecture's explicit formulation enables the use of statistical physics techniques to derive new ARNNs for specific systems. As examples, new effective ARNN architectures are derived from two well-known mean-field systems, the Curie-Weiss and Sherrington-Kirkpatrick models, showing superior performance in approximating the Boltzmann distributions of the corresponding physics model compared to other commonly used architectures. The connection established between the physics of the system and the neural network architecture provides a means to derive new architectures for different interacting systems and interpret existing ones from a physical perspective.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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