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首页> 外文期刊>Neural Networks, IEEE Transactions on >BAM Learning of Nonlinearly Separable Tasks by Using an Asymmetrical Output Function and Reinforcement Learning
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BAM Learning of Nonlinearly Separable Tasks by Using an Asymmetrical Output Function and Reinforcement Learning

机译:通过使用非对称输出函数和强化学习对非线性可分任务进行BAM学习

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摘要

Most bidirectional associative memory (BAM) networks use a symmetrical output function for dual fixed-point behavior. In this paper, we show that by introducing an asymmetry parameter into a recently introduced chaotic BAM output function, prior knowledge can be used to momentarily disable desired attractors from memory, hence biasing the search space to improve recall performance. This property allows control of chaotic wandering, favoring given subspaces over others. In addition, reinforcement learning can then enable a dual BAM architecture to store and recall nonlinearly separable patterns. Our results allow the same BAM framework to model three different types of learning: supervised, reinforcement, and unsupervised. This ability is very promising from the cognitive modeling viewpoint. The new BAM model is also useful from an engineering perspective; our simulations results reveal a notable overall increase in BAM learning and recall performances when using a hybrid model with the general regression neural network (GRNN).
机译:大多数双向关联内存(BAM)网络使用对称输出功能实现双重定点行为。在本文中,我们表明,通过将不对称参数引入到最近引入的混沌BAM输出函数中,可以使用先验知识立即从内存中禁用所需的吸引子,从而对搜索空间施加偏见以提高召回性能。此属性允许控制混沌漫游,从而优先使用给定的子空间。此外,强化学习可以使双重BAM体系结构存储和调用非线性可分离的模式。我们的结果允许相同的BAM框架对三种不同类型的学习进行建模:有监督,强化和无监督。从认知建模的角度来看,这种能力非常有前途。从工程角度来看,新的BAM模型也很有用。我们的模拟结果表明,当将混合模型与通用回归神经网络(GRNN)结合使用时,BAM学习和回想性能总体上显着提高。

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