Results 11 to 20 of about 146,402 (261)

Balance and frustration in signed networks [PDF]

open access: yesJournal of Complex Networks, 2018
The frustration index is a key measure for analysing signed networks, which has been underused due to its computational complexity. We use an exact optimisation-based method to analyse frustration as a global structural property of signed networks coming from diverse application areas.
Samin Aref, Mark C. Wilson
openaire   +4 more sources

Signed networks in social media [PDF]

open access: yesProceedings of the SIGCHI Conference on Human Factors in Computing Systems, 2010
Relations between users on social media sites often reflect a mixture of positive (friendly) and negative (antagonistic) interactions. In contrast to the bulk of research on social networks that has focused almost exclusively on positive interpretations of links between people, we study how the interplay between positive and negative relationships ...
Jure Leskovec   +2 more
openaire   +3 more sources

Signed random walk diffusion for effective representation learning in signed graphs.

open access: yesPLoS ONE, 2022
How can we model node representations to accurately infer the signs of missing edges in a signed social graph? Signed social graphs have attracted considerable attention to model trust relationships between people. Various representation learning methods
Jinhong Jung, Jaemin Yoo, U Kang
doaj   +2 more sources

Dynamics over Signed Networks [PDF]

open access: yesSIAM Review, 2019
In press, SIAM ...
Shi, Guodong   +2 more
openaire   +4 more sources

Enhanced Signed Graph Neural Network with Node Polarity

open access: yesEntropy, 2022
Signed graph neural networks learn low-dimensional representations for nodes in signed networks with positive and negative links, which helps with many downstream tasks like link prediction.
Jiawang Chen   +3 more
doaj   +1 more source

Signed Network Node Embedding via Dual Attention Mechanism

open access: yesIEEE Access, 2022
In signed networks, GNNs are used to get node embedding by aggregating node neighbor information. Most of the existing methods aggregate neighbor information from the node level, and the different paths between nodes and neighbors will also affect node ...
Zekun Lu   +4 more
doaj   +1 more source

Learning Embedding for Signed Network in Social Media with Hierarchical Graph Pooling

open access: yesApplied Sciences, 2022
Signed network embedding concentrates on learning fixed-length representations for nodes in signed networks with positive and negative links, which contributes to many downstream tasks in social media, such as link prediction.
Jiawang Chen, Zhenqiang Wu
doaj   +1 more source

Characterization of 2-Path Signed Network

open access: yesComplexity, 2020
A signed network is a network where each edge receives a sign: positive or negative. In this paper, we report our investigation on 2-path signed network of a given signed network Σ, which is defined as the signed network whose vertex set is that of Σ and
Deepa Sinha, Deepakshi Sharma
doaj   +1 more source

Learning Weight Signed Network Embedding with Graph Neural Networks

open access: yesData Science and Engineering, 2023
Network embedding aims to map nodes in a network to low-dimensional vector representations. Graph neural networks (GNNs) have received much attention and have achieved state-of-the-art performance in learning node representation.
Zekun Lu   +4 more
doaj   +1 more source

A negative link prediction method for signed social networks

open access: yesXi'an Gongcheng Daxue xuebao, 2021
Aiming at the disadvantages of negative link feature fusion and effective information mining in signed social networks, resulting in low prediction performance, a new feature fusion negative link prediction method is proposed.
Wei WANG, Miaomiao XUE, Momeng LIU
doaj   +1 more source

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