Representation learning on heterogenous information networks

In real world, most of the information networks are heterogeneous in nature, which contains different types of nodes and relationships. Representation learning or feature learning techniques are needed to extract features of these Heterogeneous Information Networks (HIN) and convert them to low dime...

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Bibliographic Details
Main Author: Chen, Xiaoyu
Other Authors: Lihui CHEN
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2021
Subjects:
Online Access:https://hdl.handle.net/10356/150188
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author Chen, Xiaoyu
author2 Lihui CHEN
author_facet Lihui CHEN
Chen, Xiaoyu
author_sort Chen, Xiaoyu
collection NTU
description In real world, most of the information networks are heterogeneous in nature, which contains different types of nodes and relationships. Representation learning or feature learning techniques are needed to extract features of these Heterogeneous Information Networks (HIN) and convert them to low dimensional vectors such that they can be used as input to machine learning models to perform machine learning tasks. Current graph embedding methods have the limitations on either considering singular types of nodes and relationships or losing important node features due to ignoring node contents or relationships between nodes. In this project, an advanced graph embedding technique, Metapath Aggregated Graph Neural Network (MAGNN), is studied. With the idea of metapath, which captures the relationships between node types, and graph neural network, a powerful graph embedding model based on deep learning, MAGNN aims to address these problems and generate node embedding with more structural and semantic information of HIN. Empirical studies with more benchmark datasets are conducted to investigate the effectiveness of MAGNN model. The results are useful for comparison with the state-of-the art baselines.
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spelling ntu-10356/1501882023-07-07T18:17:12Z Representation learning on heterogenous information networks Chen, Xiaoyu Lihui CHEN School of Electrical and Electronic Engineering ELHCHEN@ntu.edu.sg Engineering::Electrical and electronic engineering In real world, most of the information networks are heterogeneous in nature, which contains different types of nodes and relationships. Representation learning or feature learning techniques are needed to extract features of these Heterogeneous Information Networks (HIN) and convert them to low dimensional vectors such that they can be used as input to machine learning models to perform machine learning tasks. Current graph embedding methods have the limitations on either considering singular types of nodes and relationships or losing important node features due to ignoring node contents or relationships between nodes. In this project, an advanced graph embedding technique, Metapath Aggregated Graph Neural Network (MAGNN), is studied. With the idea of metapath, which captures the relationships between node types, and graph neural network, a powerful graph embedding model based on deep learning, MAGNN aims to address these problems and generate node embedding with more structural and semantic information of HIN. Empirical studies with more benchmark datasets are conducted to investigate the effectiveness of MAGNN model. The results are useful for comparison with the state-of-the art baselines. Bachelor of Engineering (Electrical and Electronic Engineering) 2021-06-12T13:26:06Z 2021-06-12T13:26:06Z 2021 Final Year Project (FYP) Chen, X. (2021). Representation learning on heterogenous information networks. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/150188 https://hdl.handle.net/10356/150188 en A3048-201 application/pdf Nanyang Technological University
spellingShingle Engineering::Electrical and electronic engineering
Chen, Xiaoyu
Representation learning on heterogenous information networks
title Representation learning on heterogenous information networks
title_full Representation learning on heterogenous information networks
title_fullStr Representation learning on heterogenous information networks
title_full_unstemmed Representation learning on heterogenous information networks
title_short Representation learning on heterogenous information networks
title_sort representation learning on heterogenous information networks
topic Engineering::Electrical and electronic engineering
url https://hdl.handle.net/10356/150188
work_keys_str_mv AT chenxiaoyu representationlearningonheterogenousinformationnetworks