Explanipedia

Data-driven model discovery with Kolmogorov-Arnold networks Open

Shirin Panahi, Mohammadamin Moradi, Erik M. Bollt, Ying‐Cheng Lai · 2025

Data-driven model discovery of complex dynamical systems can be done using sparse optimization, but it has a fundamental limitation: sparsity in that the underlying governing equations of the system contain only a small number of elementar…

Unsupervised learning for anticipating critical transitions Open

Shirin Panahi, Ling-Wei Kong, Bryan Glaz, Mulugeta Haile, Ying‐Cheng Lai · 2025

For anticipating critical transitions in complex dynamical systems, the recent approach of parameter-driven reservoir computing requires explicit knowledge of the bifurcation parameter. We articulate a framework combining a variational aut…

Machine learning prediction of tipping in complex dynamical systems Open

Shirin Panahi, Ling-Wei Kong, Mohammadamin Moradi, Zheng-Meng Zhai, Bryan Glaz , et al. · 2024

Anticipating a tipping point, a transition from one stable steady state to another, is a problem of broad relevance due to the ubiquity of the phenomenon in diverse fields. The steady-state nature of the dynamics about a tipping point make…

Machine-learning nowcasting of the Atlantic Meridional Overturning Circulation Open

Zheng-Meng Zhai, Mohammadamin Moradi, Shirin Panahi, Zhi‐Hua Wang, Ying‐Cheng Lai · 2024

The Atlantic Meridional Overturning Circulation (AMOC) is a significant component of the global ocean system, which has so far ensured a relatively warm climate for the North Atlantic and mild conditions in regions, such as Western Europe.…

Patterns of synchronized clusters in adaptive networks Open

Matteo Lodi, Shirin Panahi, Francesco Sorrentino, Alessandro Torcini, Marco Storace · 2024

Heterogeneous reinforcement learning for defending power grids against attacks Open

Mohammadamin Moradi, Shirin Panahi, Zheng-Meng Zhai, Yang Weng, John Dirkman , et al. · 2024

Reinforcement learning (RL) has been employed to devise the best course of actions in defending the critical infrastructures, such as power networks against cyberattacks. Nonetheless, even in the case of the smallest power grids, the actio…

Rate-induced tipping in complex high-dimensional ecological networks Open

Shirin Panahi, Younghae Do, Alan Hastings, Ying‐Cheng Lai · 2023

In an ecosystem, environmental changes as a result of natural and human processes can cause some key parameters of the system to change with time. Depending on how fast such a parameter changes, a tipping point can occur. Existing works on…

Rate-induced tipping in complex high-dimensional ecological networks Open

Shirin Panahi, Younghae Do, Alan Hastings, Ying-Cheng Lai · 2023

In an ecosystem, environmental changes as a result of natural and human processes can cause some key parameters of the system to change with time. Depending on how fast such a parameter changes, a tipping point can occur. Existing works on…

Author Correction: Synchronization in networked systems with large parameter heterogeneity Open

Amirhossein Nazerian, Shirin Panahi, Francesco Sorrentino · 2023

Page 2, second paragraph of the introduction: in the second item point "(ii) Acharyya and Amriktar 26,27 generalized the approach" the word "generalized" has been substituted with "extended", and the sentence now reads "(ii) Acharyya and A…

Synchronization in networked systems with large parameter heterogeneity Open

Amirhossein Nazerian, Shirin Panahi, Francesco Sorrentino · 2023

Systems that synchronize in nature are intrinsically different from one another, with possibly large differences from system to system. While a vast part of the literature has investigated the emergence of network synchronization for the c…

Synchronization in networks of coupled oscillators with mismatches Open

Amirhossein Nazerian, Shirin Panahi, Francesco Sorrentino · 2023

This perspective reviews the subject of synchronization in networks of coupled non-phase oscillators in the presence of parametric mismatches. We first discuss the case of small parametric mismatches, for which the conditions for stability…

Synchronization in networked systems with large parameter heterogeneity Open

Amirhossein Nazerian, Shirin Panahi, Francesco Sorrentino · 2023

Systems that synchronize in nature are intrinsically different from one another, with possibly large differences from system to system. While a vast part of the literature has investigated the emergence of network synchronization for the c…

Nutrition and immunity: perspectives on key issues and next steps Open

Carolyn Dunbar, Harold M. Aukema, Philip C. Calder, Deanna L. Gibson, Sarah E. Henrickson , et al. · 2023

In January 2022, a group of experts came together to discuss current perspectives and future directions in nutritional immunology as part of a symposium organized by the Canadian Nutrition Society. Objectives included (1) creating an under…

Pinning control of networks: dimensionality reduction through simultaneous block-diagonalization of matrices Open

Shirin Panahi, Matteo Bruno Lodi, Marco Storace, Francesco Sorrentino · 2022

In this paper, we study the network pinning control problem in the presence of two different types of coupling: (i) node-to-node coupling among the network nodes and (ii) input-to-node coupling from the source node to the `pinned nodes'. P…

Matryoshka and disjoint cluster synchronization of networks Open

Amirhossein Nazerian, Shirin Panahi, Ian Leifer, David J. Phillips, Hernán A. Makse , et al. · 2022

The main motivation for this paper is to characterize network synchronizability for the case of cluster synchronization (CS), in an analogous fashion to Barahona and Pecora [Phys. Rev. Lett. 89, 054101 (2002)] for the case of complete sync…

Reply to comment on "Failure of the simultaneous block diagonalization technique applied to complete and cluster synchronization of random networks" Open

Shirin Panahi, Nelson Amaya, Isaac Klickstein, Galen Novello, Francesco Sorrentino · 2022

We respond briefly to a comment [1, arXiv:2110.15493] recently posted online on our paper [2, arXiv:2108.07893]. Complete and cluster synchronization of random networks is undoubtedly a topic of interest in the Physics, Engineering, and No…

Group synchrony, parameter mismatches, and intragroup connections Open

Shirin Panahi, Francesco Sorrentino · 2021

Group synchronization arises when two or more synchronization patterns coexist in a network formed of oscillators of different types, with the systems in each group synchronizing on the same time-evolution, but systems in different groups …

Cluster synchronization of networks via a canonical transformation for simultaneous block diagonalization of matrices Open

Shirin Panahi, Isaac Klickstein, Francesco Sorrentino · 2021

We study cluster synchronization of networks and propose a canonical transformation for simultaneous block diagonalization of matrices that we use to analyze the stability of the cluster synchronous solution. Our approach has several advan…

Functional neuronal networks reveal emotional processing differences in children with ADHD Open

Sheida Ansari Nasab, Shirin Panahi, Farnaz Ghassemi, Sajad Jafari, Karthikeyan Rajagopal , et al. · 2021

New synchronization index of non-identical networks Open

Shirin Panahi, Sajad Jafari · 2020

Recently, quantifying the level of the synchrony in non-identical networks has got considerable attention. In the first part of this paper, a new synchronization index for non-identical networks is proposed. Non-identical networks can be c…

Transitions from chimeras to coherence: An analytical approach by means of the coherent stability function Open

Sarbendu Rakshit, Zahra Faghani, Fatemeh Parastesh, Shirin Panahi, Sajad Jafari , et al. · 2019

Chimera states have been a vibrant subject of research in the recent past, but the analytical treatment of transitions from chimeras to coherent states remains a challenge. Here we analytically derive the necessary conditions for this tran…

Physical Activity, Inactivity, and Sedentary Behaviors: Definitions and Implications in Occupational Health Open

David Thivel, Angelo Tremblay, Pauline Genin, Shirin Panahi, Daniel Rivière , et al. · 2018

Based on the increasing evidence linking excessive sedentary behaviors and adverse health outcomes, public health strategies have been developed and constantly improved to reduce sedentary behaviors and increase physical activity levels at…

Sedentariness and Health: Is Sedentary Behavior More Than Just Physical Inactivity? Open

Shirin Panahi, Angelo Tremblay · 2018

Sedentary behavior refers to certain activities in a reclining, seated, or lying position requiring very low energy expenditure. It has been suggested to be distinct from physical inactivity and an independent predictor of metabolic risk e…

A New Chaotic System with a Self-Excited Attractor: Entropy Measurement, Signal Encryption, and Parameter Estimation Open

Guanghui Xu, Yasser Shekofteh, Akif Akgül, Chunbiao Li, Shirin Panahi · 2018

In this paper, we introduce a new chaotic system that is used for an engineering application of the signal encryption. It has some interesting features, and its successful implementation and manufacturing were performed via a real circuit …

Yogurt and Cardiometabolic Diseases: A Critical Review of Potential Mechanisms Open

Melissa Anne Fernandez, Shirin Panahi, Noëmie Daniel, Angelo Tremblay, André Marette · 2017

Effects of a Diet-Based Weight-Reducing Program with Probiotic Supplementation on Satiety Efficiency, Eating Behaviour Traits, and Psychosocial Behaviours in Obese Individuals Open

Marina Sánchez, Christian Darimont, Shirin Panahi, Vicky Drapeau, André Marette , et al. · 2017

This study evaluated the impact of probiotic supplementation (Lactobacillus rhamnosus CGMCC1.3724 (LPR)) on appetite sensations and eating behaviors in the context of a weight-reducing program. Obese men (n = 45) and women (n = 60) partici…

Using Modified Intelligent Experimental Design in Parameter Estimation of Chaotic Systems Open

Zahra Shourgashti, Hamid Keshvari, Shirin Panahi · 2017

Computational modeling plays an important role in prediction and optimization of real systems and processes. Models usually have some parameters which should be set up to the proper value. Therefore, parameter estimation is known as an imp…

Capsaicinoids and energy balance: the next step Open

Angelo Tremblay, Hélène Arguin, Shirin Panahi · 2016

Adipose tissue and sustainable development: a connection that needs protection Open

Angelo Tremblay, Ã‰liane Picard-Deland, Shirin Panahi, André Marette · 2015

Obesity is generally considered as an excess body fat that increases the risk to develop ergonomic, metabolic, and psychosocial problems. As suggested in this paper, body fat gain is also a protective adaptation that prevents body lipotoxi…

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