Information Filtering Networks: Theoretical Foundations, Generative Methodologies, and Real-World Applications

• URL: http://arxiv.org/abs/2505.03812v1
• Date: Fri, 02 May 2025 12:30:17 GMT
• Title: Information Filtering Networks: Theoretical Foundations, Generative Methodologies, and Real-World Applications
• Authors: Tomaso Aste,
• Abstract summary: Information Filtering Networks (IFNs) provide a powerful framework for modeling complex systems.<n>This review offers a comprehensive account of IFNs, covering their theoretical foundations, construction methodologies, and diverse applications.<n> Applications span fields including finance, biology, psychology, and artificial intelligence, where IFNs improve interpretability, computational efficiency, and predictive performance.
• Score: 2.44755919161855
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Information Filtering Networks (IFNs) provide a powerful framework for modeling complex systems through globally sparse yet locally dense and interpretable structures that capture multivariate dependencies. This review offers a comprehensive account of IFNs, covering their theoretical foundations, construction methodologies, and diverse applications. Tracing their origins from early network-based models to advanced formulations such as the Triangulated Maximally Filtered Graph (TMFG) and the Maximally Filtered Clique Forest (MFCF), the paper highlights how IFNs address key challenges in high-dimensional data-driven modeling. IFNs and their construction methodologies are intrinsically higher-order networks that generate simplicial complexes-structures that are only now becoming popular in the broader literature. Applications span fields including finance, biology, psychology, and artificial intelligence, where IFNs improve interpretability, computational efficiency, and predictive performance. Special attention is given to their role in graphical modeling, where IFNs enable the estimation of sparse inverse covariance matrices with greater accuracy and scalability than traditional approaches like Graphical LASSO. Finally, the review discusses recent developments that integrate IFNs with machine learning and deep learning, underscoring their potential not only to bridge classical network theory with contemporary data-driven paradigms, but also to shape the architectures of deep learning models themselves.

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