Code, datasets, and extended writeup for paper Language Models Enable Simple Systems for Generating Structured Views of Heterogeneous Data Lakes.

We encourage the use of conda environments:

conda create --name evaporate python=3.8
conda activate evaporate

Clone as follows:

# Evaporate code
git clone git@github.com:HazyResearch/evaporate.git
cd evaporate
pip install -e .

# Weak supervision code
cd metal-evap
git submodule init
git submodule update
pip install -e .

# Manifest (to install from source, which helps you modify the set of supported models. Otherwise, ``setup.py`` installs ``manifest-ml``)
git clone git@github.com:HazyResearch/manifest.git
cd manifest
pip install -e .

The data used in the paper is hosted on Hugging Face's datasets platform: https://huggingface.co/datasets/hazyresearch/evaporate.

To download the datasets, run the following commands in your terminal:

git lfs install
git clone https://huggingface.co/datasets/hazyresearch/evaporate

Or download it via Python:

from datasets import load_dataset
dataset = load_dataset("hazyresearch/evaporate")

The code expects the data to be stored at /data/evaporate/ as specified in constants.py CONSTANTS, though can be modified.

Run closed IE and open IE using the commands:

bash run.sh

The keys in run.sh can be obtained by registering with the LLM provider. For instance, if you want to run inference with the OpenAI API models, create an account here.

The script includes commands for both closed and open IE runs. To walk through the code, look at run_profiler.py. For open IE, the code first uses schema_identification.py to generate a list of attributes for the schema. Next, the code iterates through this list to perform extraction using profiler.py. As functions are generated in profiler.py, evaluate_profiler.py is used to score the function outputs against the outputs of directly prompting the LM on the sample documents.

If you use this codebase, or otherwise found our work valuable, please cite:

@article{arora2023evaporate,
  title={Language Models Enable Simple Systems for Generating Structured Views of Heterogeneous Data Lakes},
  author={Arora, Simran and Yang, Brandon and Eyuboglu, Sabri and Narayan, Avanika and Hojel, Andrew and Trummer, Immanuel and R\'e, Christopher},
  journal={arXiv:2304.09433},
  year={2023}
}