Epoxy: Interactive Model Iteration with Weak Supervision

栏目: IT技术 · 发布时间: 4年前

内容简介:Epoxy uses weak supervision and pre-trained embeddings to create models that can train at programmatically-interactive speeds (less than 1/2 second), but that can retain the performance of training deep networks. This repository presents a simple proof-of-

Epoxy: Interactive Model Iteration with Weak Supervision and Pre-Trained Embeddings

Epoxy uses weak supervision and pre-trained embeddings to create models that can train at programmatically-interactive speeds (less than 1/2 second), but that can retain the performance of training deep networks. This repository presents a simple proof-of-concept implementation for Epoxy (our implementation is around 100 LOC, including docstrings).

Epoxy: Interactive Model Iteration with Weak Supervision

In weak supervision, users write noisy labeling functions that generate labels for the data. Historically, we have observed that these labeling functions are often high accuracy but low coverage (each labeling function only votes on a subset of points). The only ways to make up the gap in the past have been to write more labeling functions (which can get difficult as you start dealing with the long tail), or use the labeling functions to train an end model (see, e.g., FlyingSquid for more details).

In Epoxy, we use pre-trained embeddings to get some of the benefits of training an end model--without having to train one. We use the embeddings to create extended labeling functions through nearest-neighbors search (improving coverage), and then use FlyingSquid to aggregate the extended labeling functions. This helps get some of the benefits of training a deep network, but at a fraction of the cost. And if you do have time to train a deep network, Epoxy can be used to generate labels to train a downstream end model as well.

Check out our paper on arXiv for more details!

Getting Started

  • Check out the example tutorial for a simple Jupyter notebook showing the proof of concept in this repo.

Installation

This repository depends on FlyingSquid. We recommend using conda to install FlyingSquid, and then you can install Epoxy:

git clone https://github.com/HazyResearch/flyingsquid.git

cd flyingsquid

conda env create -f environment.yml
conda activate flyingsquid

pip install -e .

cd ..

git clone https://github.com/HazyResearch/epoxy.git

cd epoxy

pip install -e .

Alternatively, you can install FlyingSquid (and its dependencies) yourself, see the FlyingSquid repo for more details.

Citation

If you use our work or found it useful, please cite our arXiv paper for now:

@article{chen2020train,
  author = {Mayee F. Chen and Daniel Y. Fu and Frederic Sala and Sen Wu and Ravi Teja Mullapudi and Fait Poms and Kayvon Fatahalian and Christopher R\'e},
  title = {Train and You'll Miss It: Interactive Model Iteration with Weak Supervision and Pre-Trained Embeddings},
  journal = {arXiv preprint arXiv:2006.15168},
  year = {2020},
}

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