用储层计算做语言模型,速度快能耗低,适合资源受限场景。
Reservoir Computing as a Language Model
- 仅训练输出层的储层计算模型,实现高效文本处理。
- 在参数量相当下,变压器模型预测更准,储层计算速度更快。
- 引入注意力机制的储层模型提升性能,兼顾效率与表现。
大型语言模型(LLM)虽在处理海量数据和生成类人文本方面表现卓越,但其高能耗与慢速仍制约其质量提升及普及。为突破此瓶颈,本文探究储层计算在字符级语言建模中的应用,以实现快速、低功耗的硬件部署。比较了两种储层计算方法(仅输出层可训练)与主流的变压器架构(全参数学习注意力机制)。在统一实验流程下,控制参数量一致,结果显示:变压器在预测精度上显著领先,而储层计算在训练与推理速度上更具优势。进一步研究两类储层:传统静态线性读出与基于注意力动态调整输出权重的增强型储层。结果揭示了不同范式在资源与性能间的权衡规律,为实际应用提供指导。
原文摘要 · Abstract (English)
Large Language Models (LLM) have dominated the science and media landscape duo to their impressive performance on processing large chunks of data and produce human-like levels of text. Nevertheless, their huge energy demand and slow processing are still a bottleneck to further increasing quality while also making the models accessible to everyone. To solve this bottleneck, we will investigate how reservoir computing performs on natural text processing, which could enable fast and energy efficient hardware implementations. Studies investigating the use of reservoir computing as a language model remain sparse. In this paper, we compare three distinct approaches for character-level language modeling, two different \emph{reservoir computing} approaches, where only an output layer is trainable, and the well-known \emph{transformer}-based architectures, which fully learn an attention-based sequence representation. We explore the performance, computational cost and prediction accuracy for both paradigms by equally varying the number of trainable parameters for all models. Using a consistent pipeline for all three approaches, we demonstrate that transformers excel in prediction quality, whereas reservoir computers remain highly efficient reducing the training and inference speed. Furthermore, we investigate two types of reservoir computing: a \emph{traditional reservoir} with a static linear readout, and an \emph{attention-enhanced reservoir} that dynamically adapts its output weights via an attention mechanism. Our findings underline how these paradigms scale and offer guidelines to balance resource constraints with performance.
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