arXiv:2502.20729cs.NEcs.AI2025-02被引 5

用摩尔斯电码构建时序数据集,评测类脑计算系统处理时间模式的能力。

NeuroMorse: A Temporally Structured Dataset For Neuromorphic Computing

  • 将英语前50词转为摩尔斯电码脉冲序列,仅用两个输入通道编码复杂时序信息。
  • 线性分类器难以区分训练样本,传统方法难识别测试集关键词。
  • 适合评估神经形态算法在时空层次分解上的能力,尤其关注时序建模性能。

类脑计算通过模拟大脑的高效处理机制推进计算发展,其中数据以异步时间事件形式编码,无需同步时钟且无数据时功耗极低。然而,现有类脑算法基准大多聚焦空间特征,忽视了序列任务中固有的时间动态特性,可能导致评估无法充分反映类脑系统的独特优势。本文提出NeuroMorse,一个专为类脑学习系统设计的时序结构化数据集。该数据集将英语前50个高频词转换为时间上的摩尔斯电码脉冲序列,仅使用两个输入脉冲通道(点与划),通过时间模式实现复杂信息编码。数据集包含多尺度的时间特征层级,用于检验类脑算法对输入模式的空间与时间层次分解能力。实验表明,该训练集难以被线性分类器正确分类,测试集中的关键词也难以通过传统方法识别。NeuroMorse数据集已发布于Zenodo,配套代码可在GitHub(https://github.com/Ben-E-Walters/NeuroMorse)获取。

原文摘要 · Abstract (English)

Neuromorphic engineering aims to advance computing by mimicking the brain's efficient processing, where data is encoded as asynchronous temporal events. This eliminates the need for a synchronisation clock and minimises power consumption when no data is present. However, many benchmarks for neuromorphic algorithms primarily focus on spatial features, neglecting the temporal dynamics that are inherent to most sequence-based tasks. This gap may lead to evaluations that fail to fully capture the unique strengths and characteristics of neuromorphic systems. In this paper, we present NeuroMorse, a temporally structured dataset designed for benchmarking neuromorphic learning systems. NeuroMorse converts the top 50 words in the English language into temporal Morse code spike sequences. Despite using only two input spike channels for Morse dots and dashes, complex information is encoded through temporal patterns in the data. The proposed benchmark contains feature hierarchy at multiple temporal scales that test the capacity of neuromorphic algorithms to decompose input patterns into spatial and temporal hierarchies. We demonstrate that our training set is challenging to categorise using a linear classifier and that identifying keywords in the test set is difficult using conventional methods. The NeuroMorse dataset is available at Zenodo, with our accompanying code on GitHub at https://github.com/Ben-E-Walters/NeuroMorse.

类脑计算时序建模数据集神经形态

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