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2021-maxp-dgl-graphml-competition-intermediate-solution-'s Introduction

2021 MAXP 基于DGL的图机器学习任务

赛题背景

近几年来,针对图结构化数据的机器学习算法发展得如火如荼,其中图神经网络作为最新的图机器学习研究方向获得了广泛的关注,相关的论文也成为主流人工智能会议的热点方向。在现实场景里,图神经网络在计算机视觉、自然语言处理、生物制药、知识图谱、推荐系统等多个领域得到了应用,并取得了良好的表现。

任务说明

  • 赛题的任务是进行点性质预测,即预测节点(论文)所属的类别。
  • 本次比赛使用的图数据是基于微软学术文献生成的论文关系图,其中的节点是论文,边是论文间的引用关系。整个图包括约150万个节点,2000万条边。节点包含300维的特征,来自论文的标题和摘要等内容。节点属于约50个类别。

参考文献

Scalable and Adaptive Graph Neural Networks with Self-Label-Enhanced training

特征工程

  1. 节点特征统计特征 node info
  2. 随机游走统计特征 walk_label_features
  3. node2vec特征

特征工程1,2的想法来源于队友Arthur Morgan,感谢!

运行指令

python sagn.py

python CorrectAndSmooth.py

注:没有采用SLE的方式进行训练

线上成绩

55.9~

PS:时间原因代码未整理,不过代码无bug可直接运行,有帮助记得给个star~

Remark:除了特征工程带来上分,一个重要的上分点在于label use的方式,通过切换masked节点带来上分

2021-maxp-dgl-graphml-competition-intermediate-solution-'s People

Contributors

minghaochen avatar

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