poly-attention 0.2.2

PolyAttention

Poly Attention

Implementation of Poly-Attention, a general scheme for higher-order self-attention

Install

$ pip install poly-attention

Usage

import torch
from poly_attention import PolyAttention

attn = PolyAttention(
    dim = 512,
    heads = 8,
    dim_head = 64,
    causal = False
)

tokens = torch.randn(1, 1024, 512)

out = attn(tokens) # (1, 1024, 512)

A Vision Transformer based on Poly-Attention

import torch
from poly_attention import PolyViT

vit = PolyViT(
    image_size = 256,
    patch_size = 32,
    num_classes = 1000,
    dim = 1024,
    depth = 6,
    heads = 16,
    mlp_dim = 2048,
    order = 2 # standard poly attention order 2
)

images = torch.randn(1, 3, 256, 256)

preds = vit(images) # (1, 1000)

Quick test

python train_function_composition.py --poly_layers=1 --base_layers=2

Appreciation

• @dillfrescott for submitting a stability fix

Citations

@inproceedings{chakrabarti2026poly,
    title   = {Poly-attention: a general scheme for higher-order self-attention},
    author  = {Chakrabarti, Sayak and Pitassi, Toniann and Alman, Josh},
    booktitle = {International Conference on Learning Representations (ICLR)},
    year    = {2026}
}

@misc{kayyam2026transformersneedprojectionssystematic,
    title   = {Do Transformers Need Three Projections? Systematic Study of QKV Variants},
    author  = {Ali Kayyam and Anusha Madan Gopal and M Anthony Lewis},
    year    = {2026},
    eprint  = {2606.04032},
    archivePrefix = {arXiv},
    primaryClass = {cs.LG},
    url     = {https://arxiv.org/abs/2606.04032},
}