超维大脑启发的学习,用于与大规模的下结核神经活动的音符识别
IEEE transactions on bio-medical engineering
|July 15, 2024
概括
本研究引入了一种使用高维计算 (HDC) 解码下结核 (IC) 神经活动以识别语音的新框架,与传统方法相比,实现了显著的加速度和更高的准确性.
科学领域:
- 神经科学是一个神经科学.
- 计算机科学 计算机科学
- 机器学习 机器学习
背景情况:
- 从下结肠 (IC) 解码神经活动对于理解听觉系统至关重要.
- 现有的方法通常需要大量的数据集和大量的微调,因为噪音神经信号.
- 深度神经网络 (DNN) 广泛使用,但可能是计算密集型的.
研究的目的:
- 开发一种新且高效的语音识别框架,通过解码下 (IC) 神经活动来实现语音识别.
- 利用超维计算 (HDC) 作为DNN的替代方案,以进行高效的神经活动分析.
- 在现场可编程网关数组 (FPGA) 上部署基于HDC的算法,以实现硬件加速.
主要方法:
- 开发了一种空间和时间意识的HDC编码器,以捕捉神经活动中的全球和本地模式.
- 为了优化速度,HDC算法在现场可编程门阵列 (FPGA) 平台上实现.
- 在语音播放过程中,从幼鼠中记录下下 (IC) 神经活动,以进行评估.
主要成果:
- 与基线机器学习算法相比,提出的HDC方法显示出更高的分类质量.
- 与ResNet相比,HDC框架实现了显著的运行速度提升:在CPU上达到74×,在GPU上达到67×,在FPGA上达到210×.
- 与ResNet.Net相比,观察到高达15%的辅音和10%的母音分类的精度提高.
结论:
- 灵感来自大脑的HDC能够高效地编码IC神经活动,用于语音分类.
- 该框架提供了数量级的运行时间加快,同时提高了准确性.
- 基于HDC的方法是可扩展的,可用于现实世界的部署,并提供快速培训,提高质量.
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