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深度神经网络的基于能源的本地学习的有效方法和框架
Haibo Chen1, Bangcheng Yang1, Fucun He1
1China Nanhu Academy of Electronics and Information Technology, Jiaxing, China.
Frontiers in artificial intelligence
|September 11, 2025
概括
这项研究引入了一种基于能源的新型模型,可以克服预测编码 (PC) 的局限性,用于训练人工神经网络. 新方法实现了与反向传播相比较的高精度,同时提高了培训效率.
科学领域:
- 神经科学是一个神经科学.
- 人工智能的人工智能
- 机器学习 机器学习
背景情况:
- 人工神经网络 (ANN) 经常使用生物学上不合理的反向传播进行训练.
- 基于能源的模型 (EBM) 提供了一个受大脑启发的替代方案,通过最小化能量功能来学习.
- 预测编码 (PC) 是一种EBM,它使用预测错误,但在深度网络中与梯度问题作斗争.
研究的目的:
- 在深度预测编码网络中解决梯度爆炸和消失问题.
- 提高大脑启发的学习模型的训练效率和稳定性.
- 为ANN开发一种具有竞争力的反向传播替代方案.
主要方法:
- 引入双向能量以稳定预测错误并减轻梯度爆炸.
- 实现了跳过连接来解决梯度消失问题.
- 开发了一种层级适应性学习率 (LALR),以提高培训效率.
- 创建了一个基于JAX的框架,以提供高效的EBM培训.
主要成果:
- 取得的高精度: 99.22% (MNIST),93.78% (CIFAR-10),83.96% (CIFAR-100) 和73.35% (Tiny ImageNet). 图像的精度是可以使用的.
- 性能可与以反向传播训练的相同网络相比较.
- 与使用新的Jax框架的PyTorch相比,培训时间减少了50%.
结论:
- 拟议的基于能源的双向模型有效地克服了PC在深度网络中的局限性.
- 这种由大脑启发的方法为反向传播提供了一个可行的和高效的替代方案.
- 开发的框架加速了EBM培训,展示了实际优势.
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