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AdaMod optimization algorithm, build on PyTorch.

Project description

# AdaMod

An optimizer which exerts adaptive momental upper bounds on individual learning rates to prevent them becoming undesirably lager than what the historical statistics suggest and avoid the non-convergence issue, thus to a better performance. Strong empirical results on many deep learning applications demonstrate the effectiveness of our proposed method especially on complex networks such as DenseNet and Transformer.

<p align=’center’><img src=’img/Loss.bmp’ width=”100%”/></p>

## Installation

AdaMod requires Python 3.6.0 or later.

### Installing via pip

The preferred way to install AdaMod is via pip with a virtual environment. Just run `bash pip install adamod ` in your Python environment and you are ready to go!

### Using source code

As AdaMod is a Python class with only 100+ lines, an alternative way is directly downloading [](./adamod/ and copying it to your project.

## Usage

You can use AdaMod just like any other PyTorch optimizers.

`python3 optimizer = adamod.AdaMod(model.parameters(), lr=1e-3, beta3=0.999) ` As described in the paper, AdaMod can smooths out unexpected large learning rates throughout the training process. The beta3 parameter is the smoothing coefficient for actual learning rate, which controls the average range. In common cases, a beta3 in {0.999,0.9999} can achieve relatively good and stable results. See the paper for more details.

## Demos

For the full list of demos, please refer to [this page](./demos).

## Contributors


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