Qiqing Zhai

dblp:174/0664 · DBLP profile ↗
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2ranked-venue papers
1as first author
1since 2021 · last 2025
0000-0002-3649-3893ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Security and privacy · 1 · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Interdisciplinary, comprehensive, and emerging computing
1 paper
Computational social science and digital humanities · 100%
Theoretical computer science
1 paper
Mathematical optimization · 100%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computational social science and digital humanities › social network analysis
information diffusion
0.912025
Diffusion Prediction and Control of Negative Information on Simplicial Complexes Using Physics-Informed Neural Networks · IEEE Trans. Inf. Forensics Secur. 2025
Mathematical optimization › control theory
optimal control
0.912025
Diffusion Prediction and Control of Negative Information on Simplicial Complexes Using Physics-Informed Neural Networks · IEEE Trans. Inf. Forensics Secur. 2025

Methods — techniques the papers use, named apart from their topics

physics-informed neural networks · 1.7inverse parameter estimation · 1.7identifiability analysis · 1.7
YearPublicationVenuePosition
2025 Diffusion Prediction and Control of Negative Information on Simplicial Complexes Using Physics-Informed Neural Networks
abstract
The inadequacy of traditional binary interaction networks in characterizing information flow processes within higher-order structures has driven growing research focus toward higher-order networks. Considering reporting mechanism and the dynamics of network scale, this paper proposes a susceptible-infected-quarantine-removed-empty (SIQRE) negative information diffusion model on simplicial complexes. An optimal control strategy, taking into account the system gain, is then implemented. The existence and stability of equilibria, and bi-stability between invasion threshold and persistence threshold are derived. Experiments on synthetic and empirical simplicial complexes reveal the dynamic behavior of the system with discontinuous phase transitions, backward bifurcation and periodic oscillations. An increase in the birth rate makes the system more susceptible to outbreaks of negative information, while the opposite is true for the death rate. Reporting mechanism suppresses discontinuous phase transition. And the synergistic application of preventive and corrective strategies demonstrates superior cost-effectiveness in system control compared to their isolated implementation. Additionally, an identifiability analysis of the model is conducted. Finally, the model parameters are inversely estimated and the diffusion dynamics are predicted using physics-informed neural networks (PINNs) across three instances, and the optimal control is subsequently performed, validating the effectiveness of both the proposed model and the control strategy.
Youguo Wang, Qiqing Zhai, Zhangfei Zhou, Haojie Hou
IEEE Trans. Inf. Forensics Secur.3
2018 Noise effect on signal quantization in an array of binary quantizers
Qiqing Zhai, Youguo Wang
Signal Process.1