This repository contains the code for the EMNLP 2020 paper "Substance over Style: Document-Level Targeted Content Transfer" by Allison Hegel, Sudha Rao, Asli Celikyilmaz, and Bill Dolan (arXiv).
@inproceedings{
Hegel2020Substance,
title={Substance over Style: Document-Level Targeted Content Transfer},
author={Allison Hegel and Sudha Rao and Asli Celikyilmaz and Bill Dolan},
booktitle={Proceedings of the Conference on Empirical Methods in Natural Language Processing (EMNLP)},
year={2020}
Requirements
- Python 3.6
pip install -r requirements.txt
To prepare scraped data for training:
- Scrape recipes or use existing recipe datasets
- Clean recipes and put them in a standard format (see
data_cleaning
) - Use
make_next_step_data.py
to generate training data formatted for the No-Source Rewriter - Use
make_next_ing_data.py
to generate training data formatted for the ingredient prompt model - Use
make_style_transfer_data.py
to generate training data for the Contextual Rewriter model and its ablations
We fine-tune each model using HuggingFace.
To create generations for each model, use:
export NUM_TO_EVAL=0
python evaluation/generate_from_models.py \
--model <path-to-gpt2-model> \
--gen_type style_transfer_ing_multi_rule \
--set test1k \
--num_to_eval $NUM_TO_EVAL \
--num_return_sequences 5 \
--topk 40 \
--topp 1 \
--rep 1 \
--temp 1
- NUM_TO_EVAL=0 runs generations using the entire prompt file, while specifying a number will stop after that many lines
- The gen_type above uses our best model; other gen_types give ablations of our best model
In the paper, we compare to several baseline models:
- PPLM (see
pplm
folder for implementation details) - CTRL (see
ctrl
folder for implementation details) - Seq2seq with copy (code)
- Transformer (code)
Code for evaluating the models in terms of perplexity, diversity, and dietary constraint adherence is in evaluation
.
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