Who are the celebrities? Identifying vital users on Sina Weibo microblogging network

作者：

Highlights：

• A novel network sampling scheme is proposed.

• An end-to-end GNN model is presented.

• The traditional cross-entropy loss function is improved.

• The proposed model is superior in detecting vital users.

摘要

•A novel network sampling scheme is proposed.•An end-to-end GNN model is presented.•The traditional cross-entropy loss function is improved.•The proposed model is superior in detecting vital users.

论文关键词：Vital node identification,Graph neural network,Simplified graph attention mechanism,Labeled adjacent matrix

论文评审过程：Received 19 April 2021, Revised 20 August 2021, Accepted 22 August 2021, Available online 25 August 2021, Version of Record 3 September 2021.

论文官网地址：https://doi.org/10.1016/j.knosys.2021.107438