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https://github.com/amazon-science/fact-graph

Implementation of the paper "FactGraph: Evaluating Factuality in Summarization with Semantic Graph Representations (NAACL 2022)"
https://github.com/amazon-science/fact-graph

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Implementation of the paper "FactGraph: Evaluating Factuality in Summarization with Semantic Graph Representations (NAACL 2022)"

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# FactGraph: Evaluating Factuality in Summarization with Semantic Graph Representations (NAACL 2022)

This repository contains the code for the paper "[FactGraph](https://arxiv.org/pdf/2204.06508.pdf): Evaluating Factuality in Summarization with Semantic Graph Representations".

**FactGraph** is an adapter-based method for assessing factuality that decomposes the document and the summary into structured meaning representations (MR):



In **FactGraph**, summary and document graphs are encoded by a graph encoder with structure-aware adapters, along with text representations using an adapter-based text encoder. Text and graph encoders use the same pretrained model and only the adapters are trained:





## Environment

The easiest way to proceed is to create a conda environment:
```
conda create -n factgraph python=3.7
conda activate factgraph
```

Further, install PyTorch and PyTorch Geometric:

```
pip install torch==1.9.0+cu111 torchvision==0.10.0+cu111 torchaudio==0.9.0 -f https://download.pytorch.org/whl/torch_stable.html
pip install torch-scatter==2.0.9 -f https://data.pyg.org/whl/torch-1.9.0+cu111.html
pip install torch-sparse==0.6.12 -f https://data.pyg.org/whl/torch-1.9.0+cu111.html
pip install torch-geometric==2.0.3
```

Install the packages required:

```
pip install -r requirements.txt
```

Finally, create the environment for AMR preprocessing:

```
cd data/preprocess
./create_envs_preprocess.sh
cd ../../
```

## FactCollect Dataset

FactCollect is created consolidating the following datasets:

| Dataset | Datapoints | |
| ------------- |:-------------:|:-------------:|
| [Wang et al. (2020)](https://aclanthology.org/2020.acl-main.450.pdf) | 953 | [Link](https://github.com/W4ngatang/qags/tree/master/data)
| [Kryscinski et al. (2020)](https://aclanthology.org/2020.emnlp-main.750.pdf) | 1434 | [Link](https://storage.googleapis.com/sfr-factcc-data-research/unpaired_annotated_data.tar.gz)
| [Maynez et al. (2020)](https://aclanthology.org/2020.acl-main.173.pdf) | 2500 | [Link](https://github.com/google-research-datasets/xsum_hallucination_annotations)
| [Pagnoni et al. (2021)](https://aclanthology.org/2021.naacl-main.383.pdf) | 4942 | [Link](https://github.com/artidoro/frank/tree/main/data)

* FactCollect uses two datasets released under licenses.
* FactCC is under [BSD-3](https://github.com/amazon-research/fact-graph/blob/main/data/LICENSE-FACTCC.txt). Copyright (c) 2019, Salesforce.com, Inc. All rights reserved.
* XSum Hallucinations is under [CC BY 4.0](https://github.com/amazon-research/fact-graph/blob/main/data/LICENSE-XSUM-HAL.txt).

For generating **FactCollect** dataset, execute:

```
conda activate factgraph
cd data
./create_dataset.sh
cd ..
```

# Running trained FactGraph Models

First, download **FactGraph** trained checkpoints:
```
cd src
./download_trained_models.sh
```

To run **FactGraph**:
```
./evaluate.sh factgraph
```

To run **FactGraph** edge-level:
```
./evaluate.sh factgraph-edge
```

`` is a JSON line file with the following format:
```
{'summary': summary1, 'article': article1}
{'summary': summary2, 'article': article2}
...
```
where `'summary'` is a single sentence summary.

# Training FactGraph

## Preprocess

Convert the dataset into the format required for the model:

```
cd data/preprocess
./process_dataset_for_model.sh
cd ../../
```

This step generated AMR graphs using the [SPRING model](https://github.com/SapienzaNLP/spring). Check their [repository](https://github.com/SapienzaNLP/spring) for more details.

Download the pretrained parameters of the adapters:
```
cd src
./download_pretrained_adapters.sh
```

## Training

For training **FactGraph** using the **FactCollect** dataset, execute:
```
conda activate factgraph
./train.sh
```

## Predicting

For predicting, run:
```
./predict.sh
```

# Training FactGraph - Edge-level

## Preprocess

Download the files *train.tsv* and *test.tsv* from this [link](https://drive.google.com/drive/folders/1BxUVnc7ov9PL7nxP7sS9ZUXCYo877Bcx?usp=sharing) provided by [Goyal and Durrett (2021)](https://arxiv.org/pdf/2104.04302.pdf). Copy those files to `data\edge_level_data`

Convert the dataset into the format required for the model:

```
cd data/preprocess
./process_dataset_for_edge_model.sh
cd ../../
```

## Training

For training **FactGraph** using the **FactCollect** dataset, execute:
```
conda activate factgraph
./train_edgelevel.sh
```

## Predicting

For predicting, run:
```
./predict_edgelevel.sh
```

## Trained Models

A **FactGraph** checkpoint trained on **FactCollect** dataset can be found [here](https://public.ukp.informatik.tu-darmstadt.de/ribeiro/factgraph/factgraph.tar.gz). Test set results:
```
{'accuracy': 0.89, 'bacc': 0.8904, 'f1': 0.89, 'size': 600, 'cnndm': {'bacc': 0.7717, 'f1': 0.8649, 'size': 370}, 'xsum': {'bacc': 0.6833, 'f1': 0.9304, 'size': 230}}
```

A **FactGraph-edge** checkpoint trained on the **Maynez** dataset can be found [here](https://public.ukp.informatik.tu-darmstadt.de/ribeiro/factgraph/factgraph-edge.tar.gz). This checkpoint was selected using the test set. Test set results:
```
{'accuracy': 0.8371, 'bacc': 0.8447, 'f1': 0.8371, 'f1_macro': 0.7362, 'accuracy_edge': 0.6948, 'bacc_edge': 0.6592, 'f1_edge': 0.6948}
```

## Security

See [CONTRIBUTING](CONTRIBUTING.md#security-issue-notifications) for more information.

## License Summary

The documentation is made available under under the CC-BY-NC-4.0 License. See the LICENSE file.

## Citation

```
@inproceedings{ribeiro-etal-2022-factgraph,
title = "FactGraph: Evaluating Factuality in Summarization with Semantic Graph Representations",
author = "Ribeiro, Leonardo F. R. and
Liu, Mengwen and
Gurevych, Iryna and
Dreyer Markus and
Bansal, Mohit",
booktitle = "Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies",
year={2022}
}
```