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Understanding and Improving Transformer From a Multi-Particle Dynamic System Point of View

7 Pith papers cite this work. Polarity classification is still indexing.

7 Pith papers citing it
abstract

The Transformer architecture is widely used in natural language processing. Despite its success, the design principle of the Transformer remains elusive. In this paper, we provide a novel perspective towards understanding the architecture: we show that the Transformer can be mathematically interpreted as a numerical Ordinary Differential Equation (ODE) solver for a convection-diffusion equation in a multi-particle dynamic system. In particular, how words in a sentence are abstracted into contexts by passing through the layers of the Transformer can be interpreted as approximating multiple particles' movement in the space using the Lie-Trotter splitting scheme and the Euler's method. Given this ODE's perspective, the rich literature of numerical analysis can be brought to guide us in designing effective structures beyond the Transformer. As an example, we propose to replace the Lie-Trotter splitting scheme by the Strang-Marchuk splitting scheme, a scheme that is more commonly used and with much lower local truncation errors. The Strang-Marchuk splitting scheme suggests that the self-attention and position-wise feed-forward network (FFN) sub-layers should not be treated equally. Instead, in each layer, two position-wise FFN sub-layers should be used, and the self-attention sub-layer is placed in between. This leads to a brand new architecture. Such an FFN-attention-FFN layer is "Macaron-like", and thus we call the network with this new architecture the Macaron Net. Through extensive experiments, we show that the Macaron Net is superior to the Transformer on both supervised and unsupervised learning tasks. The reproducible codes and pretrained models can be found at https://github.com/zhuohan123/macaron-net

fields

cs.LG 4 cs.CL 3

years

2026 7

verdicts

UNVERDICTED 7

representative citing papers

Analogies between Transformer Layers and Power Method

cs.LG · 2026-05-25 · unverdicted · novelty 6.0

Transformer layers are analogous to power method steps, tilting tokens toward the principal eigenvector of the output-value weight product, with stronger analytical and empirical alignment in shared-weight models and a proposed steering method.

Momentum Streams for Optimizer-Inspired Transformers

cs.LG · 2026-05-23 · unverdicted · novelty 6.0

Optimizer-inspired Transformer architectures with momentum achieve lower validation loss than standard Transformers, with momentum identified as the key factor over preconditioning.

Mixture-of-Control: State-Aware Fine-Tuning for Transformer-based Models

cs.LG · 2026-06-30 · unverdicted · novelty 5.0

Mixture-of-Control adaptively combines local and global control states in transformer fine-tuning by treating per-block states as experts in a sparse MoE setup to improve cross-block communication while keeping memory and compute costs comparable to prior state-based methods.

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Showing 7 of 7 citing papers.