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图神经网络 被引量:26
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作者 白铂 刘玉婷 +5 位作者 马驰骋 王光辉 闫桂英 闫凯 张明 周志恒 《中国科学:数学》 CSCD 北大核心 2020年第3期367-384,共18页
近年来,随着海量数据的涌现,可以表示对象之间复杂关系的图结构数据越来越受到重视并给已有的算法带来了极大的挑战.图神经网络作为可以揭示深层拓扑信息的模型,已开始广泛应用于诸多领域,如通信、生命科学和经济金融等.本文对近几年来... 近年来,随着海量数据的涌现,可以表示对象之间复杂关系的图结构数据越来越受到重视并给已有的算法带来了极大的挑战.图神经网络作为可以揭示深层拓扑信息的模型,已开始广泛应用于诸多领域,如通信、生命科学和经济金融等.本文对近几年来提出的图神经网络模型和应用进行综述,主要分为以下几类:基于空间方法的图神经网络模型、基于谱方法的图神经网络模型和基于生成方法的图神经网络模型等,并提出可供未来进一步研究的问题. 展开更多
关键词 图结构数据 图神经网络 空间方法 谱方法 图自编码器 图对抗生成网络 图循环神经网络
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Synergistic drug combinations prediction by integrating pharmacological data
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作者 Chengzhi Zhang guiying yan 《Synthetic and Systems Biotechnology》 SCIE 2019年第1期67-72,共6页
There is compelling evidence that synergistic drug combinations have become promising strategies for combating complex diseases,and they have evident predominance comparing to traditional one drug-one disease approach... There is compelling evidence that synergistic drug combinations have become promising strategies for combating complex diseases,and they have evident predominance comparing to traditional one drug-one disease approaches.In this paper,we develop a computational method,namely SyFFM,that takes pharmacological data into consideration and applies field-aware factorization machines to analyze and predict potential synergistic drug combinations.Firstly,features of drug pairs are constructed based on associations between drugs and target,and enzymes,and indication areas.Then,the synergistic scores of drug combinations are obtained by implementing field-aware factorization machines on latent vector space of these features.Finally,synergistic combinations can be predicted by introducing a threshold.We applied SyFFM to predict pairwise synergistic combinations and three-drug synergistic combinations,and the performance is good in terms of cross-validation.Besides,more than 90%combinations of the top ranked predictions are proved by literature and the analysis of parameters in model shows that our method can help to investigate and explain synergistic mechanisms underlying combinatorial therapy. 展开更多
关键词 Synergistic drug combinations Factorization machines Computational methods
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