GLGE: A New General Language Generation Evaluation Benchmark

Tasks | Dataset | Leaderboard | Baselines | Paper

Updates

• 2020-10-14: Initialization.

Introduction

This repository contains information about the general langugae generation evaluation benchmark GLGE, which is composed of 8 language generation tasks, including Abstractive Text Summarization (CNN/DailyMail, Gigaword, XSUM, MSNews), Answer-aware Question Generation (SQuAD 1.1, MSQG), Conversational Question Answering (CoQA), and Personalizing Dialogue (Personachat). In order to provide more diversified difficulty challenges, we provide 3 different difficulty versions (easy, medium, and hard) for each task.

The 8 NLG tasks in GLGE:

Tasks

The 8 tasks in GLGE can be categorized into 4 groups: Abstractive Text Summarization tasks, Answer-aware Question Generation tasks, Conversational Question Answering task, and Personalizing Dialogue task.

Abstractive Text Summarization Tasks

CNN/DailyMail

CNN/DailyMail \cite{hermann2015cnndm} dataset contains 220K articles from the Daily Mail newspapers, and 93K articles from the CNN. Each article contains a bullet point summary. GLGE use the non-anonymized variant used in \cite{see2017get}. After the pre-processing, there are 311,971 <article, summary> data pairs, where the source input is the article, and the target output is the summary which consists of multiple sentences. ROUGE-1, ROUGE-2, and ROUGE-L are used as the metrics.

Gigaword

Gigaword \cite{rush2015neural} contains 4M examples extracted from the news articles of the Gigaword corpus \cite{graff2003gigaword}. After the pre-processing, there are 3,995,559 <article, summary> data pairs, where the source input is the the first sentence of the article, and the target output is the headline that often only contains a single sentence. ROUGE-1, ROUGE-2, and ROUGE-L are used as the metrics.

XSUM

XSUM \cite{narayan2018don} consists of 227K online articles from the British Broadcasting Corporation (BBC), which contains professionally written single-sentence summaries. After the pre-processing, there are 226,677 <article, summary> data pairs, where the source input is the the news article, and the target output is a single summary sentence. ROUGE-1, ROUGE-2, and ROUGE-L are used as the metrics.

MSNews

Answer-aware Question Generation Tasks

SQuAD 1.1

SQuAD 1.1 cite{rajpurkar2016squad} dataset contains 536 Wikipedia articles with over 100k Amazon Mechanical Turks crowd-worker created questions posed about the articles with the corresponding answer span. Since the original hidden test set of the SQuAD 1.1 is hidden, we re-split the dataset with the examples from the original training set and dev set. After the pre-processing, there are 98,169 <answer, passage, question> data triples the source input is a Wikipedia passage along with an answer span, and the target output is a question. ROUGE-L, BLEU-4, and METEOR are used as the metrics.

MSQG

Answer-aware Question Generation Tasks

CoQA

CoQA \cite{reddy2019coqa} dataset contains 127K questions with answers, obtained from 8k conversations about text passages from seven diverse domains. After the pre-processing, there are 116,630 <conversation history, passage, question, answer> data 4-tuples, where the source input is a sequence of conversation history along with a given question and a give passage, and the target output is a free-form answer text. F1-Score is used as the metrics.

Conversational Question Answering Task

PersonaChat

PersonaChat \cite{zhang2018personalizing} dataset is consist of 162,064 utterances, which require models generate responses according to given multi-turn conversations and persona profile. After the pre-processing, there are 151,157 <persona profile description text, conversation history, response> data triples, where the source input is a sequence of conversation history along with several sentences of persona profile description text, and the target output is a response. BLEU-1, BLEU-2, Distinct-1, and Distinct-2 are used as the metrics.

Get Dataset

In order to use our dataset, please navigate to GLGE Leaderboard and agree to our terms of service. After you do so a download link will be made available.

Run Baselines

Requirments

Recommend you install to python packages by command: pip install -r requirement.txt

Data Preparation

To preprocess all the datasets, please use the following command to tokenize the data and generate the binary data files:

cd script
./preprocessed-all.sh

Note that we tokenize each dataset with BERT-uncased tokenizer.

To preprocess a specific dataset, please use the following command:

./preprocessed.sh `<DATASET>` `<VERSION>`

For example, if you want to preprocess the easy version of CNN/DailyMail, please use the following command:

./preprocessed.sh cnndm easy

Here <DATASET> can be cnndm, gigaword, xsum, msnews, squadqg, msqg, coqa, personachat. <VERSION> can be easy, medium, hard.

Training and Testing Pipeline

Our paper provides 4 baselines, including LSTM, Transformer, ProphetNet-base, and ProphetNet-large basd on fairseq.

To train and test the baselines, please use the following command:

cd script
./run.sh `<DATASET>` `<VERSION>` `<MODEL>` `<SET>`

For example, if you want to train and test the ProphetNet-large on the medium version of SQuAD 1.1 question generation dev set, please use the following command:

./run.sh squadqg medium prophetnet dev

Here <MODEL> can be lstm, transformer, prophetnet_base, prophetnet, and <SET> can be dev, test.

If you want to use ProphetNet, please download the pretrained checkpoints at here.

Leaderboard Submission

Submissions

To submit your predictions for evaluation, please create a single folder which contains the 8 sub-folders named after each task (see reference file for an example). Inside each folder, create the prediction file using the following format: {version}.prediction where {version} is the difficulty versions (easy, medium, and hard). Please validate that you have done this correctly by evaluating against the development file. Once that is done email your submission. We will reply with your model performance.

Paper

If you use our benchmark or dataset, please cite our paper \cite{Liu2020GLGE}.

GLGE: A New General Language Generation Evaluation Benchmark

Additionally, since GLGE is also built out of exiting 6 datasets, please ensure you cite all of them.

An example: We evaluate our model using the GLGE benchmark \cite{Liu2020GLGE}, a general langugae generation evaluation benchmark consiting of CNN/DailyMail \cite{hermann2015cnndm} \cite{see2017get}, Gigaword \cite{rush2015neural} \cite{graff2003gigaword}, XSum \cite{narayan2018don}, MSNews, SQuAD 1.1 cite{rajpurkar2016squad}, MSQG, CoQA \cite{reddy2019coqa}, and PersonaChat \cite{zhang2018personalizing}.

Bibtex for external datasets used in GLGE:

@inproceedings{hermann2015cnndm,
  title={Teaching machines to read and comprehend},
  author={Hermann, Karl Moritz and Kocisky, Tomas and Grefenstette, Edward and Espeholt, Lasse and Kay, Will and Suleyman, Mustafa and Blunsom, Phil},
  booktitle={NIPS},
  pages={1693--1701},
  year={2015}
}

@inproceedings{see2017get,
  title={Get to the point: Summarization with pointer-generator networks},
  author={See, Abigail and Liu, Peter J and Manning, Christopher D},
  booktitle={ACL},
  pages={1073--1083},
  year={2017}
}

@inproceedings{rush2015neural,
  title={A neural attention model for abstractive sentence summarization},
  author={Rush, Alexander M and Chopra, Sumit and Weston, Jason},
  booktitle={EMNLP},
  pages={379-389},
  year={2015}
}

@article{graff2003gigaword,
  title={English gigaword},
  author={Graff, David and Kong, Junbo and Chen, Ke and Maeda, Kazuaki},
  journal={Linguistic Data Consortium, Philadelphia},
  volume={4},
  number={1},
  pages={34},
  year={2003}
}

@inproceedings{narayan2018don,
  title={Don't give me the details, just the summary! topic-aware convolutional neural networks for extreme summarization},
  author={Narayan, Shashi and Cohen, Shay B and Lapata, Mirella},
  booktitle={EMNLP},
  pages={1797--1807},
  year={2018}
}

@inproceedings{rajpurkar2016squad,
  title={Squad: 100,000+ questions for machine comprehension of text},
  author={Rajpurkar, Pranav and Zhang, Jian and Lopyrev, Konstantin and Liang, Percy},
  booktitle={EMNLP},
  pages={2383--2392},
  year={2016}
}

@article{reddy2019coqa,
  title={Coqa: A conversational question answering challenge},
  author={Reddy, Siva and Chen, Danqi and Manning, Christopher D},
  journal={TACL},
  volume={7},
  pages={249--266},
  year={2019}
}

@inproceedings{zhang2018personalizing,
  title={Personalizing dialogue agents: I have a dog, do you have pets too?},
  author={Zhang, Saizheng and Dinan, Emily and Urbanek, Jack and Szlam, Arthur and Kiela, Douwe and Weston, Jason},
  booktitle={ACL},
  pages={2204--2213},
  year={2018}
}

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