# ProtoTorch

ProtoTorch is a PyTorch-based Python toolbox for bleeding-edge research in
prototype-based machine learning algorithms.

[![Build Status](https://travis-ci.org/si-cim/prototorch.svg?branch=master)](https://travis-ci.org/si-cim/prototorch)
[![GitHub version](https://badge.fury.io/gh/si-cim%2Fprototorch.svg)](https://badge.fury.io/gh/si-cim%2Fprototorch)
[![PyPI version](https://badge.fury.io/py/prototorch.svg)](https://badge.fury.io/py/prototorch)
![Tests](https://github.com/si-cim/prototorch/workflows/Tests/badge.svg)
[![codecov](https://codecov.io/gh/si-cim/prototorch/branch/master/graph/badge.svg)](https://codecov.io/gh/si-cim/prototorch)
[![Downloads](https://pepy.tech/badge/prototorch)](https://pepy.tech/project/prototorch)
[![GitHub license](https://img.shields.io/github/license/si-cim/prototorch)](https://github.com/si-cim/prototorch/blob/master/LICENSE)

## Description

This is a Python toolbox brewed at the Mittweida University of Applied Sciences
in Germany for bleeding-edge research in Learning Vector Quantization (LVQ)
and potentially other prototype-based methods. Although, there are
other (perhaps more extensive) LVQ toolboxes available out there, the focus of
ProtoTorch is ease-of-use, extensibility and speed.

Many popular prototype-based Machine Learning (ML) algorithms like K-Nearest
Neighbors (KNN), Generalized Learning Vector Quantization (GLVQ) and Generalized
Matrix Learning Vector Quantization (GMLVQ) are implemented using the "nn" API
provided by PyTorch.

## Installation

ProtoTorch can be installed using `pip`.
```
pip install prototorch
```

To install the bleeding-edge features and improvements:
```
git clone https://github.com/si-cim/prototorch.git
git checkout dev
cd prototorch
pip install -e .
```

## Usage

ProtoTorch is modular. It is very easy to use the modular pieces provided by
ProtoTorch, like the layers, losses, callbacks and metrics to build your own
prototype-based(instance-based) models. These pieces blend-in seamlessly with
numpy and PyTorch to allow you mix and match the modules from ProtoTorch with
other PyTorch modules.

ProtoTorch comes prepackaged with many popular LVQ algorithms in a convenient
API, with more algorithms and techniques coming soon. If you would simply like
to be able to use those algorithms to train large ML models on a GPU, ProtoTorch
lets you do this without requiring a black-belt in high-performance Tensor
computation.

## Bibtex

If you would like to cite the package, please use this:
```bibtex
@misc{Ravichandran2020,
  author = {Ravichandran, J},
  title = {ProtoTorch},
  year = {2020},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/si-cim/prototorch}}
}