https://github.com/ianycxu/GCN-with-BERT

Graph Convolutional Networks (GCN) with BERT for Coreference Resolution Task [Pytorch][DGL]
https://github.com/ianycxu/GCN-with-BERT

bert bert-model coreference-resolution gcn gnn graph-convolutional-networks graph-neural-networks nlp pytorch

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Graph Convolutional Networks (GCN) with BERT for Coreference Resolution Task [Pytorch][DGL]

• Host: GitHub
• URL: https://github.com/ianycxu/GCN-with-BERT
• Owner: ianycxu
• Created: 2019-04-28T00:18:25.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-05-18T01:01:57.000Z (about 3 years ago)
• Last Synced: 2024-05-21T14:13:07.351Z (about 2 months ago)
• Topics: bert, bert-model, coreference-resolution, gcn, gnn, graph-convolutional-networks, graph-neural-networks, nlp, pytorch
• Language: Jupyter Notebook
• Homepage:
• Size: 959 KB
• Stars: 140
• Watchers: 1
• Forks: 27
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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• awesome-bert - ianycxu/RGCN-with-BERT - Relational Graph Convolutional Networks (RGCN) with BERT for Coreference Resolution Task (BERT Coreference Resolution)

README

        
# Look Again at the Syntax: Relational Graph Convolutional Network for Gendered Ambiguous Pronoun Resolution

## Original Paper

https://www.aclweb.org/anthology/W19-3814/

## Introduction

We propose an end-to-end resolver by combining pre-trained BERT with Relational Graph Convolutional Network (R-GCN). R-GCN is used for digesting structural syntactic information and learning better task-specific embeddings. Empirical results demonstrate that, under explicit syntactic supervision and without the need to fine tune BERT, R-GCN's embeddings outperform the original BERT embeddings on the coreference task. Our work obtains the state-of-the-art results on GAP dataset, and significantly improves the snippet-context baseline F1 score from 66.9% to 80.3%. We participated in the 2019 GAP Coreference Shared Task, and our codes are available online. The overall architecture is shown below.

![](https://i.imgur.com/aAK43SM.png)

## Dataset we have

The data set is Gendered Ambiguous Pronouns (GAP), which is a gender-balanced dataset containing 8908 coreference-labeled pairs sampled from Wikipedia. The dataset contains samples Each sample contains a small paragraph that mentions the potential subject's names later refered by a target pronoun. It also came up with two candidate names for the resolver to choose from. Columns contains: 

|  Header        | Description     | 

| :------------- | :----------: |

|  ID | ID for this sample   | 

|  Text | Text containing pronoun and two names   | 

|  Pronoun | Target pronoun in text   |

|  Pronoun-offset | Character offset in text   |

|  A | Name A in text   |

|  A-offset | Position of A in the text |

|  A-coref | Whether A confers this pronoun |

|  B | Name B in text |

|  B-offset | Position of B in the text |

|  A-coref | Whether B confers this pronoun |

## Data Preprocessing

We use SpaCy as our syntactic denpendency parser. DGL is used to transfer each dependency tree into a graph object. This DGL graph object then can be used as the input for GCN model which is also implemented by DGL. Several graphs are grouped together as a larger DGL batch-graph object for batch training setting.