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Link prediction in complex networks via matrix perturbation and decomposition.

Abstract：

:Link prediction in complex networks aims at predicting the missing links from available datasets which are always incomplete and subject to interfering noises. To obtain high prediction accuracy one should try to complete the missing information and at the same time eliminate the interfering noise from the datasets. Given that the global topological information of the networks can be exploited by the adjacent matrix, the missing information can be completed by generalizing the observed structure according to some consistency rule, and the noise can be eliminated by some proper decomposition techniques. Recently, two related works have been done that focused on each of the individual aspect and obtained satisfactory performances. Motivated by their complementary nature, here we proposed a new link prediction method that combines them together. Moreover, by extracting the symmetric part of the adjacent matrix, we also generalized the original perturbation method and extended our new method to weighted directed networks. Experimental studies on real networks from disparate fields indicate that the prediction accuracy of our method was considerably improved compared with either of the individual method as well as some other typical local indices.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Xu X,Liu B,Wu J,Jiao L

doi

10.1038/s41598-017-14847-2

subject

Has Abstract

pub_date

2017-11-07 00:00:00

pages

14724

issue

1

issn

2045-2322

pii

10.1038/s41598-017-14847-2

journal_volume

7

pub_type

杂志文章

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