计算机科学 ›› 2022, Vol. 49 ›› Issue (9): 76-82.doi: 10.11896/jsjkx.210900078
黄丽1, 朱焱1, 李春平2
HUANG Li1, ZHU Yan1, LI Chun-ping2
摘要： 作者学术行为预测旨在从异构学术网络中挖掘作者的行为关系,以促进科研合作,产出高水平、高质量的研究成果。现有的节点表示方法大多未考虑节点的语义特征、内容特征、全局结构等,难以有效学习网络中节点的低维特性。为有效融合节点的多维特征和全局结构,提出了一种集成BiLSTM、注意力机制和聚类算法的异构网络表示学习方法HNEMA,以提高学术网络中作者的学术行为预测效果。HNEMA首先基于BiLSTM和注意力机制融合节点的多维特征,聚合同一元路径下或不同元路径下相同类型的邻居,随后聚合待表征节点的所有邻居的多维特征。基于此,采用聚类算法捕获节点的全局特征,从而全面有效地学习节点的低维特性。在全面特征学习的基础上,应用逻辑回归分类器预测作者的学术行为。在3个公开数据集上的验证实验结果表明,相比其他方法,HNEMA在AUC和F1指标上都有一定程度的提升。
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