Graph convolutional network method based on hybrid feature modeling

doi:10.11772/j.issn.1001-9081.2021111981

Journal of Computer Applications ›› 2022, Vol. 42 ›› Issue (11): 3354-3363.DOI: 10.11772/j.issn.1001-9081.2021111981

Special Issue: 第九届CCF大数据学术会议(CCF Bigdata 2021)

• CCF Bigdata 2021 • Previous Articles Next Articles

Graph convolutional network method based on hybrid feature modeling

Zhuoran LI¹^,²^,³^,⁴, Zhonglin YE¹^,²^,³^,⁴, Haixing ZHAO¹^,²^,³^,⁴(), Jingjing LIN¹^,²^,³^,⁴

^1.Computer College，Qinghai Normal University，Xining Qinghai 810016，China
^2.State Key Laboratory of Tibetan Intelligent Information Processing and Application Co?established by Ministry of Science and Technology and Qinghai Province （Qinghai Normal University），Xining Qinghai 810008，China
^3.Key Laboratory of Tibetan Information Processing，Ministry of Education （Qinghai Normal University），Xining Qinghai 810008，China
^4.Tibetan Information Processing and Machine Translation Key Laboratory of Qinghai Province （Qinghai Normal University），Xining Qinghai 810008，China

Received:2021-11-22 Revised:2022-01-12 Accepted:2022-01-14 Online:2022-01-25 Published:2022-11-10
Contact: Haixing ZHAO
About author:LI Zhuoran， born in 1996， M. S. candidate. His research interests include data mining， graph neural network.
YE Zhongli， born in 1989， Ph. D.， associate professor. His research interests include question answering system， network representation learning.
ZHAO Haixing， born in 1969， Ph. D.， professor. His research interests include complex network， network reliability.
LIN Jingjing， born in 1986， Ph. D. candidate， lecturer. Her research interests include data mining， hypergraph neural network.
Supported by:
National Key Research and Development Program of China(2020YFC1523300);Natural Science Foundation of Qinghai Province(2021?ZJ?946Q);Middle?Youth Natural Science Foundation of Qinghai Normal University(2020QZR007)

基于混合特征建模的图卷积网络方法

李卓然¹^,²^,³^,⁴, 冶忠林¹^,²^,³^,⁴, 赵海兴¹^,²^,³^,⁴(), 林晶晶¹^,²^,³^,⁴

^1.青海师范大学计算机学院, 西宁 810016
^2.省部共建藏语智能信息处理及应用国家重点实验室(青海师范大学), 西宁 810008
^3.藏文信息处理教育部重点实验室(青海师范大学), 西宁 810008
^4.青海省藏文信息处理与机器翻译重点实验室(青海师范大学), 西宁 810008

通讯作者: 赵海兴
作者简介:李卓然（1996—），男，内蒙古乌兰察布人，硕士研究生，CCF会员，主要研究方向：数据挖掘、图神经网络
冶忠林（1989—），男，青海民和人，副教授，博士，CCF会员，主要研究方向：问答系统、网络表示学习
赵海兴（1969—），男，青海湟中人，教授，博士，CCF会员，主要研究方向：复杂网络、网络可靠性 h.x.zhao@163.com
林晶晶（1986—），女，甘肃临洮人，讲师，博士研究生，CCF会员，主要研究方向：数据挖掘、超图神经网络。
基金资助:
国家重点研发计划项目(2020YFC1523300);青海省自然科学基金资助项目(2021?ZJ?946Q);青海师范大学自然科学中青年科研基金资助项目(2020QZR007)

Abstract

Abstract:

For the complex information contained in the network， more ways are needed to extract useful information from it， but the relevant characteristics in the network cannot be completely described by the existing single?feature Graph Neural Network （GNN）. To resolve the above problems， a Hybrid feature?based Dual Graph Convolutional Network （HDGCN） was proposed. Firstly， the structure feature vectors and semantic feature vectors of nodes were obtained by Graph Convolutional Network （GCN）. Secondly， the features of nodes were aggregated selectively so that the feature expression ability of nodes was enhanced by the aggregation function based on attention mechanism or gating mechanism. Finally， the hybrid feature vectors of nodes were gained by the fusion mechanism based on a feasible dual?channel GCN， and the structure features and semantic features of nodes were modeled jointly to make the features be supplement for each other and promote the method's performance on subsequent machine learning tasks. Verification was performed on the datasets CiteSeer， DBLP （DataBase systems and Logic Programming） and SDBLP （Simplified DataBase systems and Logic Programming）. Experimental results show that compared with the graph convolutional network model based on structure feature training， the dual channel graph convolutional network model based on hybrid feature training has the average value of Micro?F1 increased by 2.43， 2.14， 1.86 and 2.13 percentage points respectively， and the average value of Macro?F1 increased by 1.38， 0.33， 1.06 and 0.86 percentage points respectively when the training set proportion is 20%， 40%， 60% and 80%. The difference in accuracy is no more than 0.5 percentage points when using concat or mean as the fusion strategy， which shows that both concat and mean can be used as the fusion strategy. HDGCN has higher accuracy on node classification and clustering tasks than models trained by structure or semantic network alone， and has the best results when the output dimension is 64， the learning rate is 0.001， the graph convolutional layer number is 2 and the attention vector dimension is 128.

Key words: attention mechanism, gating mechanism, dual channel graph convolutional network, structure feature, semantic feature

摘要：

对于网络中拥有的复杂信息，需要更多的方式抽取其中的有用信息，但现有的单特征图神经网络（GNN）无法完整地刻画网络中的相关特性。针对该问题，提出基于混合特征的图卷积网络（HDGCN）方法。首先，通过图卷积网络（GCN）得到节点的结构特征向量和语义特征向量；然后，通过改进基于注意力机制或门控机制的聚合函数选择性地聚合语义网络节点的特征，增强节点的特征表达能力；最后，通过一种基于双通道图卷积网络的融合机制得到节点的混合特征向量，将节点的结构特征和语义特征联合建模，使特征之间互相补充，提升该方法在后续各种机器学习任务上的表现。在CiteSeer、DBLP和SDBLP三个数据集上进行实验的结果表明，与基于结构特征训练的GCN相比，HDGCN在训练集比例为20%、40%、60%、80%时的Micro?F1值平均分别提升了2.43、2.14、1.86和2.13个百分点，Macro?F1值平均分别提升了1.38、0.33、1.06和0.86个百分点。用拼接或平均值作为融合策略时，准确率相差不超过0.5个百分点，可见拼接和平均值均可作为融合策略。HDGCN在节点分类和聚类任务上的准确率高于单纯使用结构或语义网络训练的模型，并且在输出维度为64、学习率为0.001、2层图卷积层和128维注意力向量时的效果最好。

关键词: 注意力机制, 门控机制, 双通道图卷积网络, 结构特征, 语义特征

CLC Number:

TP391

Zhuoran LI, Zhonglin YE, Haixing ZHAO, Jingjing LIN. Graph convolutional network method based on hybrid feature modeling[J]. Journal of Computer Applications, 2022, 42(11): 3354-3363.

李卓然, 冶忠林, 赵海兴, 林晶晶. 基于混合特征建模的图卷积网络方法[J]. 《计算机应用》唯一官方网站, 2022, 42(11): 3354-3363.

Figures/Tables 13

References 42

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数据集	节点数	边数		样本数量
数据集	节点数	边数		训练集	验证集	测试集
CiteSeer	4 610	结构网络	5 923	1 333	667	2 610
CiteSeer	4 610	语义网络	819 346	1 333	667	2 610
DBLP	17 725	结构网络	105 781	3 333	1 667	12 725
DBLP	17 725	语义网络	125 360	3 333	1 667	12 725
SDBLP	3 119	结构网络	39 516	666	334	3 119
SDBLP	3 119	语义网络	439 182	666	334	3 119

数据集	节点数	边数		样本数量
数据集	节点数	边数		训练集	验证集	测试集
CiteSeer	4 610	结构网络	5 923	1 333	667	2 610
CiteSeer	4 610	语义网络	819 346	1 333	667	2 610
DBLP	17 725	结构网络	105 781	3 333	1 667	12 725
DBLP	17 725	语义网络	125 360	3 333	1 667	12 725
SDBLP	3 119	结构网络	39 516	666	334	3 119
SDBLP	3 119	语义网络	439 182	666	334	3 119

数据集	对比算法	训练集比例
数据集	对比算法	20%	40%	60%	80%
CiteSeer	DeepWalk	59.30	61.48	62.30	62.33
	LINE	47.06	49.57	51.02	53.07
	TF	61.30	63.05	63.30	62.19
	DeepWalk+TF	61.15	63.37	63.96	65.49
	GraRep	53.09	59.75	61.05	62.09
	HDGCN	83.52	84.26	83.95	85.15
DBLP	DeepWalk	64.34	65.98	66.18	67.03
	LINE	66.53	67.87	68.30	68.89
	TF	69.46	71.15	71.44	71.57
	DeepWalk+TF	65.15	66.22	66.60	66.91
	GraRep	65.90	67.92	68.88	69.56
	HDGCN	80.47	80.58	80.74	80.93
SDBLP	DeepWalk	80.65	81.49	82.35	82.71
	LINE	77.01	78.28	78.97	78.82
	TF	71.23	73.86	75.07	76.00
	DeepWalk+TF	80.95	81.44	82.22	82.58
	GraRep	82.52	84.78	84.17	85.27
	HDGCN	82.45	82.61	83.23	83.47

数据集	对比算法	训练集比例
数据集	对比算法	20%	40%	60%	80%
CiteSeer	DeepWalk	59.30	61.48	62.30	62.33
	LINE	47.06	49.57	51.02	53.07
	TF	61.30	63.05	63.30	62.19
	DeepWalk+TF	61.15	63.37	63.96	65.49
	GraRep	53.09	59.75	61.05	62.09
	HDGCN	83.52	84.26	83.95	85.15
DBLP	DeepWalk	64.34	65.98	66.18	67.03
	LINE	66.53	67.87	68.30	68.89
	TF	69.46	71.15	71.44	71.57
	DeepWalk+TF	65.15	66.22	66.60	66.91
	GraRep	65.90	67.92	68.88	69.56
	HDGCN	80.47	80.58	80.74	80.93
SDBLP	DeepWalk	80.65	81.49	82.35	82.71
	LINE	77.01	78.28	78.97	78.82
	TF	71.23	73.86	75.07	76.00
	DeepWalk+TF	80.95	81.44	82.22	82.58
	GraRep	82.52	84.78	84.17	85.27
	HDGCN	82.45	82.61	83.23	83.47

数据集	特征类型	训练集比例
		20%		40%		60%		80%
		Micro‑F1	Macro‑F1	Micro‑F1	Macro‑F1	Micro‑F1	Macro‑F1	Micro‑F1	Macro‑F1
CiteSeer	Hybrid	83.52	54.13	84.26	57.23	83.95	62.46	85.15	64.11
	Structure	77.58	52.38	78.75	58.08	80.26	62.32	80.69	64.36
	Semantic	65.19	44.07	65.76	44.40	66.93	45.08	67.18	47.05
SDBLP	Hybrid	82.45	82.45	82.61	82.63	83.23	83.23	83.47	83.42
	Structure	81.46	81.15	82.11	81.82	81.56	81.15	82.17	81.90
	Semantic	65.80	64.45	66.00	65.77	66.89	66.62	68.44	68.03
DBLP	Hybrid	80.47	74.45	80.58	74.70	80.74	74.85	80.93	74.99
	Structure	80.10	73.36	80.18	73.66	80.51	73.90	80.29	73.67
	Semantic	64.73	50.10	65.52	52.06	66.11	53.27	66.71	54.28

Graph convolutional network method based on hybrid feature modeling

基于混合特征建模的图卷积网络方法

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Figures/Tables 13

References 42

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Metrics

数据集	特征类型	NMI	ARI
CiteSeer	结构特征	58.90	37.17
	语义特征	33.84	22.06
	混合特征	59.18	37.12
SDBLP	结构特征	55.93	56.03
	语义特征	29.51	23.94
	混合特征	56.47	56.48
DBLP	结构特征	43.41	47.30
	语义特征	22.68	20.90
	混合特征	43.33	45.05

数据集	融合方式	训练集比例
数据集	融合方式	20%	40%	60%	80%
CiteSeer	sum	83.72	84.56	84.67	85.38
	mean	84.18	85.32	85.56	85.57
	concat	83.52	84.26	83.95	85.15
SDBLP	sum	81.93	82.25	81.92	81.93
	mean	83.41	83.55	83.56	83.49
	concat	82.45	82.61	83.23	83.47
DBLP	Sum	80.07	79.97	79.88	80.11
	mean	79.85	79.81	79.66	80.04
	concat	80.47	80.58	80.74	80.93

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