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node_classification's Introduction

题目:讯飞社交账号网络分类挑战赛:利用无向图的连接数据,确定图中节点的类别。

解决方法:

  1. best solutions:本地十折交叉acc.8662,样本外acc为.8682
  • node2vec确定节点embedding
  • 使用高斯判别器
  1. 已尝试方法但不是最佳:
  • 使用中心度等原始图节点特征作为embedding (结果最差在.74左右)
  • 使用GAT、SAGE、GCN (结果波动较大,最大在.861左右)
  • 得到节点embedding之后使用常用的机器学习方法分类(xgboost、svm、lr、lightgbm等,最好的是catboost能达到.866)

复现: run train.sh in the code file: bash train.sh

环境: cuda 11.4 包信息在requirements.txt中

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