Tensor State Space-based Dynamic Multilayer Network Modeling

• URL: http://arxiv.org/abs/2506.02413v1
• Date: Tue, 03 Jun 2025 03:58:32 GMT
• Title: Tensor State Space-based Dynamic Multilayer Network Modeling
• Authors: Tian Lan, Jie Guo, Chen Zhang,
• Abstract summary: Existing models often fail to capture such networks' temporal and cross-layer dynamics.<n>This paper introduces a novel State Space Model for Dynamic Multilayer Networks (TSSDMN), utilizing a latent space model framework.<n> Numerical simulations and case studies demonstrate the efficacy of TSSDMN for understanding dynamic multilayer networks.
• Score: 24.860214033275515
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Understanding the complex interactions within dynamic multilayer networks is critical for advancements in various scientific domains. Existing models often fail to capture such networks' temporal and cross-layer dynamics. This paper introduces a novel Tensor State Space Model for Dynamic Multilayer Networks (TSSDMN), utilizing a latent space model framework. TSSDMN employs a symmetric Tucker decomposition to represent latent node features, their interaction patterns, and layer transitions. Then by fixing the latent features and allowing the interaction patterns to evolve over time, TSSDMN uniquely captures both the temporal dynamics within layers and across different layers. The model identifiability conditions are discussed. By treating latent features as variables whose posterior distributions are approximated using a mean-field variational inference approach, a variational Expectation Maximization algorithm is developed for efficient model inference. Numerical simulations and case studies demonstrate the efficacy of TSSDMN for understanding dynamic multilayer networks.

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