Ballot: Balanced k-means clustering with optimal transport
Ballot (Balanced Lloyd with Optimal Transport) is a high-performance Python package for balanced clustering. It solves the problem of creating equal-sized clusters (or clusters with specific capacity constraints) by leveraging Optimal Transport theory and Entropic Regularization (Sinkhorn algorithm).
Features
- Speed: Uses Sinkhorn iterations (E-BalLOT) for near-linear time complexity $O(n \log n)$, making it usable for large datasets ($n > 100,000$).
- Simplicity: precise, math-driven implementation without complex C++ dependencies.
- Scikit-learn Compatible: Designed to fit seamlessly into existing ML pipelines.
Installation
Install via pip:
pip install ballot
Usage
import numpy as np
from ballot.core import solve_entropic_kantorovich
# Example usage (API subject to change in v0.1)
# Create random data and centroids...
# Run balanced clustering...
Development
To install in editable mode for development:
git clone https://github.com/username/ballot.git
cd ballot
pip install -e .
Run tests:
pytest
References
This project incorporates research from the following paper:
- BalLOT: Balanced k-means clustering with optimal transport Wenyan Luo, Dustin G. Mixon arXiv:2512.05926
1 maintainer
Metadata
1 maintainer
Release files for ballot 0.1.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| ballot-0.1.0.tar.gz | 8.1 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| ballot-0.1.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 14.8 kB
Release files / ballot-0.1.0.tar.gz
| Download URL | ballot-0.1.0.tar.gz |
|---|---|
| Size | 8.1 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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BLAKE2b-256 checksum How to use checksums |
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Transparency logRelease files / ballot-0.1.0-py3-none-any.whl
| Download URL | ballot-0.1.0-py3-none-any.whl |
|---|---|
| Size | 6.7 kB |
| Tags | Python 3 |
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SHA-256 checksum How to use checksums |
ca780ea76235a84181ebf0320060fc9bfb741868ec05d30884f8ff3ebe3eb88a
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BLAKE2b-256 checksum How to use checksums |
df9c906dc9b6c1674cc95354f248aa872a192106ebf8fa948bb4701afbbf2129
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Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
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Transparency logSecurity for ballot 0.1.0
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