Lightly

Bug Fixes and Improvements

Refactoring of `lightly.api` to remove circular imports.
Rewriting of import statements to ensure compatability with Python 3.6.
Handled the warning from `pytorch_lightning` during training.

Models
- MoCo: [Momentum Contrast for Unsupervised Visual Representation Learning, 2019](https://arxiv.org/abs/1911.05722)
- SimCLR: [A Simple Framework for Contrastive Learning of Visual Representations, 2020](https://arxiv.org/abs/2002.05709)

MoCo and New Documentation


New Model: MoCo
`lightly.models.moco.ResNetMoCo` implements the momentum encoder architecture for self-supervised visual representation learning.
`lightly.loss.memory_bank.MemoryBankWrapper` allows the training of self-supervised models with a queue of negative samples.

New Documentation
The URL for the documentation has changed to https://docs.lightly.ai.
New section on [how lightly works](https://docs.lightly.ai/getting_started/lightly_at_a_glance.html).
New tutorials have been added, check out the [Pizza Tutorial](https://docs.lightly.ai/tutorials/platform/plot_pizza_filter.html) to learn how to train a pizza classifier.

Further Changes:
Refactoring of `lightly.api`.
Default collate functions which implement the SimCLR and MoCo (v1) transfomations.
Collate functions work with tuple as `input_size`.
New tests and tox environments.
Removed `sklearn` dependency for PCA.


Models:
- MoCo: [Momentum Contrast for Unsupervised Visual Representation Learning, 2019](https://arxiv.org/abs/1911.05722)
- SimCLR: [A Simple Framework for Contrastive Learning of Visual Representations, 2020](https://arxiv.org/abs/2002.05709)

First Release: Welcome Lightly
A python package for self-supervised learning on vision data.

New Name
The package was previously named `borisml` and is now being rebranded as `lightly`.

New Documentation
The new documentation is hosted at https://lightly.readthedocs.org.

Model
- SimCLR: [A Simple Framework for Contrastive Learning of Visual Representations, 2020](https://arxiv.org/abs/2002.05709)