Vision transformers have demonstrated remarkable success in a wide range of computer vision tasks over the last years. However, their high computational costs remain a significant barrier to their practical deployment. In particular, the complexity of transformer models is quadratic with respect to the number of input tokens. Therefore techniques that reduce the number of input tokens that need to be processed have been proposed. This paper introduces Learned Thresholds token Merging and Pruning (LTMP), a novel approach that leverages the strengths of both token merging and token pruning. LTMP uses learned threshold masking modules that dynamically determine which tokens to merge and which to prune. We demonstrate our approach with extensive experiments on vision transformers on the ImageNet classification task. Our results demonstrate that LTMP achieves state-of-the-art accuracy across reduction rates while requiring only a single fine-tuning epoch, which is an order of magnitude faster than previous methods. Code is available at https://github.com/Mxbonn/ltmp .

这篇论文介绍了一种名为LTMP的学习阈值符号合并和修剪方法，它通过动态确定合并和修剪的符号，以降低计算视觉变换器所需的输入符号数量，实现了在降低速率的同时保持最先进的准确性，在仅一个微调阶段的情况下比先前的方法快一个数量级以上。

基于学习的阈值令牌合并和修剪用于视觉Transformer