3 papers
cs.SI2024
Friedkin-Johnsen Model for Opinion Dynamics on Signed Graphs
Xiaotian Zhou, Haoxin Sun, Wanyue Xu +2
A signed graph offers richer information than an unsigned graph, since it describes both collaborative and competitive relationships in social networks. In this paper, we study opi…
cs.MA2023
Optimization on the smallest eigenvalue of grounded Laplacian matrix via edge addition
Xiaotian Zhou, Haoxin Sun, Wei Li +1
The grounded Laplacian matrix $\LL_{-S}$ of a graph $\calG=(V,E)$ with nodes and edges is a submatrix of its Laplacian matrix $\LL$, obtained fr…
cs.SI2023
A Fast Algorithm for Moderating Critical Nodes via Edge Removal
Changan Liu, Xiaotian Zhou, Ahad N. Zehmakan +1
Critical nodes in networks are extremely vulnerable to malicious attacks to trigger negative cascading events such as the spread of misinformation and diseases. Therefore, effectiv…