An unified approach to link prediction in collaboration networks

• URL: http://arxiv.org/abs/2411.01066v1
• Date: Fri, 01 Nov 2024 22:40:39 GMT
• Title: An unified approach to link prediction in collaboration networks
• Authors: Juan Sosa, Diego Martínez, Nicolás Guerrero,
• Abstract summary: This article investigates and compares three approaches to link prediction in colaboration networks. The ERGM is employed to capture general structural patterns within the network. The GCN and Word2Vec+MLP models leverage deep learning techniques to learn adaptive structural representations of nodes and their relationships.
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• Abstract: This article investigates and compares three approaches to link prediction in colaboration networks, namely, an ERGM (Exponential Random Graph Model; Robins et al. 2007), a GCN (Graph Convolutional Network; Kipf and Welling 2017), and a Word2Vec+MLP model (Word2Vec model combined with a multilayer neural network; Mikolov et al. 2013a and Goodfellow et al. 2016). The ERGM, grounded in statistical methods, is employed to capture general structural patterns within the network, while the GCN and Word2Vec+MLP models leverage deep learning techniques to learn adaptive structural representations of nodes and their relationships. The predictive performance of the models is assessed through extensive simulation exercises using cross-validation, with metrics based on the receiver operating characteristic curve. The results clearly show the superiority of machine learning approaches in link prediction, particularly in large networks, where traditional models such as ERGM exhibit limitations in scalability and the ability to capture inherent complexities. These findings highlight the potential benefits of integrating statistical modeling techniques with deep learning methods to analyze complex networks, providing a more robust and effective framework for future research in this field.

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