基于自旋神经元和电阻记忆的层次时间记忆在节能脑启发计算中的应用
Hierarchical Temporal Memory Based on Spin-Neurons and Resistive Memory for Energy-Efficient Brain-Inspired Computing
摘要:
分层时间记忆(HTM)试图模仿大脑新皮层的计算过程。它识别输入中的空间和时间模式以进行推断。这可能需要大量的计算昂贵的任务,如点积评估。可以为这种基元提供直接映射的纳米器件引起了极大的兴趣。在这项工作中,我们表明,HTM的计算块可以映射使用低电压,快速开关,磁金属自旋神经元结合新兴的电阻交叉杆网络(RCN)。结果显示,与45 nm CMOS ASIC设计相比,能耗可能降低200倍以上
英文摘要:
Hierarchical temporal memory (HTM) tries to mimic the computing in cerebral-neocortex. It identifies spatial and temporal patterns in the input for making inferences. This may require large number of computationally expensive tasks like, dot-product evaluations. Nano-devices that can provide direct mapping for such primitives are of great interest. In this work we show that the computing blocks for HTM can be mapped using low-voltage, fast-switching, magneto-metallic spin-neurons combined with emerging resistive cross-bar network (RCN). Results show possibility of more than 200x lower energy as compared to 45nm CMOS ASIC design
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