Graph Embedding Method Based on Biased Walking for Link Prediction

Link prediction is an essential and challenging problem in research on complex networks, which can provide research tools and theoretical supports for the formation and evolutionary mechanisms of networks. Existing graph representation learning methods based on random walks usually ignore the influe...

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Main Authors: Mingshuo Nie, Dongming Chen, Dongqi Wang
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/20/3778
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author Mingshuo Nie
Dongming Chen
Dongqi Wang
author_facet Mingshuo Nie
Dongming Chen
Dongqi Wang
author_sort Mingshuo Nie
collection DOAJ
description Link prediction is an essential and challenging problem in research on complex networks, which can provide research tools and theoretical supports for the formation and evolutionary mechanisms of networks. Existing graph representation learning methods based on random walks usually ignore the influence of local network topology on the transition probability of walking nodes when predicting the existence of links, and the sampling strategy of walking nodes during random walks is uncontrolled, which leads to the inability of these methods to effectively learn high-quality node vectors to solve the link prediction problem. To address the above challenges, we propose a novel graph embedding method for link prediction. Specifically, we analyze the evolution mechanism of links based on triadic closure theory and use the network clustering coefficient to represent the aggregation ability of the network’s local structure, and this adaptive definition of the aggregation ability of the local structure enables control of the walking strategy of nodes in the random walking process. Finally, node embedding generated based on biased walking paths is employed to solve the link prediction problem. Extensive experiments and analyses show that the TCW algorithm provides high accuracy across a diverse set of datasets.
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spelling doaj.art-b7d2da182b124aa9be127036cafee6672023-11-24T01:06:52ZengMDPI AGMathematics2227-73902022-10-011020377810.3390/math10203778Graph Embedding Method Based on Biased Walking for Link PredictionMingshuo Nie0Dongming Chen1Dongqi Wang2Software College, Northeastern University, Shenyang 110169, ChinaSoftware College, Northeastern University, Shenyang 110169, ChinaSoftware College, Northeastern University, Shenyang 110169, ChinaLink prediction is an essential and challenging problem in research on complex networks, which can provide research tools and theoretical supports for the formation and evolutionary mechanisms of networks. Existing graph representation learning methods based on random walks usually ignore the influence of local network topology on the transition probability of walking nodes when predicting the existence of links, and the sampling strategy of walking nodes during random walks is uncontrolled, which leads to the inability of these methods to effectively learn high-quality node vectors to solve the link prediction problem. To address the above challenges, we propose a novel graph embedding method for link prediction. Specifically, we analyze the evolution mechanism of links based on triadic closure theory and use the network clustering coefficient to represent the aggregation ability of the network’s local structure, and this adaptive definition of the aggregation ability of the local structure enables control of the walking strategy of nodes in the random walking process. Finally, node embedding generated based on biased walking paths is employed to solve the link prediction problem. Extensive experiments and analyses show that the TCW algorithm provides high accuracy across a diverse set of datasets.https://www.mdpi.com/2227-7390/10/20/3778link predictionbiased walkingtriadic closure theorynetwork clustering coefficient
spellingShingle Mingshuo Nie
Dongming Chen
Dongqi Wang
Graph Embedding Method Based on Biased Walking for Link Prediction
Mathematics
link prediction
biased walking
triadic closure theory
network clustering coefficient
title Graph Embedding Method Based on Biased Walking for Link Prediction
title_full Graph Embedding Method Based on Biased Walking for Link Prediction
title_fullStr Graph Embedding Method Based on Biased Walking for Link Prediction
title_full_unstemmed Graph Embedding Method Based on Biased Walking for Link Prediction
title_short Graph Embedding Method Based on Biased Walking for Link Prediction
title_sort graph embedding method based on biased walking for link prediction
topic link prediction
biased walking
triadic closure theory
network clustering coefficient
url https://www.mdpi.com/2227-7390/10/20/3778
work_keys_str_mv AT mingshuonie graphembeddingmethodbasedonbiasedwalkingforlinkprediction
AT dongmingchen graphembeddingmethodbasedonbiasedwalkingforlinkprediction
AT dongqiwang graphembeddingmethodbasedonbiasedwalkingforlinkprediction