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Appl. Sci. 2018, 8(1), 32;

A Fusion Link Prediction Method Based on Limit Theorem

National Digital Switching System Engineering and Technological R&D Center, Zhengzhou 450002, China
Authors to whom correspondence should be addressed.
Received: 3 December 2017 / Revised: 17 December 2017 / Accepted: 22 December 2017 / Published: 28 December 2017
(This article belongs to the Special Issue Selected Papers from IEEE ICICE 2017)
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The theoretical limit of link prediction is a fundamental problem in this field. Taking the network structure as object to research this problem is the mainstream method. This paper proposes a new viewpoint that link prediction methods can be divided into single or combination methods, based on the way they derive the similarity matrix, and investigates whether there a theoretical limit exists for combination methods. We propose and prove necessary and sufficient conditions for the combination method to reach the theoretical limit. The limit theorem reveals the essence of combination method that is to estimate probability density functions of existing links and nonexistent links. Based on limit theorem, a new combination method, theoretical limit fusion (TLF) method, is proposed. Simulations and experiments on real networks demonstrated that TLF method can achieve higher prediction accuracy. View Full-Text
Keywords: link prediction; combination method; theoretical limit; TLF method link prediction; combination method; theoretical limit; TLF method

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Wu, Y.; Yu, H.; Huang, R.; Li, Y.; Lin, S. A Fusion Link Prediction Method Based on Limit Theorem. Appl. Sci. 2018, 8, 32.

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