Complex Lab

Research group on complex systems at the State University of Maringa

Recent Publications

Universal productivity patterns in research careers

A common expectation is that career productivity peaks rather early and then gradually declines with seniority. But whether this holds …

Results for nonlinear diffusion equations with stochastic resetting

We investigate a nonlinear diffusion process in which particles stochastically reset to their initial positions at a constant rate. The …

Interplay between particle trapping and heterogeneity in anomalous diffusion

Heterogeneous media diffusion is often described using position-dependent diffusion coefficients and estimated indirectly through mean …

Complexity of the COVID-19 pandemic in Maringá

While extensive literature exists on the COVID-19 pandemic at regional and national levels, understanding its dynamics and consequences …

Deep learning criminal networks

Recent advances in deep learning methods have enabled researchers to develop and apply algorithms for the analysis and modeling of …

Age and market capitalization drive large price variations of cryptocurrencies

Cryptocurrencies are considered the latest innovation in finance with considerable impact across social, technological, and economic …

Effects of shady environments on fish collective behavior

Despite significant efforts devoted to understanding the underlying complexity and emergence of collective movement in animal groups, …

Machine Learning Partners in Criminal Networks

Recent research has shown that criminal networks have complex organizational structures, but whether this can be used to predict static …

Schrödinger Equation with Geometric Constraints and Position-Dependent Mass

We investigate the solutions of the Schrödinger equation in the presence of geometric constraints represented by a backbone structure …

Invasive alien species records are exponentially rising across the Earth

Humans are facilitating the introduction and range expansion of invasive alien species (IAS), which have negatively impacted ecological …

News and press coverage

Ex-aluno da UEM recebe prêmio de menção honrosa em concurso nacional

As outras quatro Instituições Estaduais de Ensino Superior (IEES) do estado foram reconhecidas com seis menções honrosas, em uma delas, o ex-aluno de doutorado em Física da UEM, Higor Yudi Duenha Sigaki foi agraciado.

Engrenagens do conhecimento

Ao analisar a produção científica ao longo da carreira de mais de 6 mil pesquisadores brasileiros de 14 disciplinas, a equipe do físico Haroldo Ribeiro, da Universidade Estadual de Maringá, no Paraná, identificou padrões distintos de comportamento em relação à publicação de artigos.

Scientific American: Computer Program Measures the Entropy of Art

Computer Program Measures the Entropy of Art The digitization of paintings could help art historians detect previously unknown patterns and connections By Jess Romeo on March 5, 2019

Lavanguardia: Críticos artificiales del arte humano

Los algoritmos llegan a las mismas interpretaciones y conclusiones sobre la pintura que los expertos más reputados. Una investigación sobre arte basada en la inteligencia artificial demuestra que las métricas digitales fundamentadas en la física coinciden con los conceptos propuestos a lo largo de la historia por los expertos humanos.

Revista Pesquisa Fapesp: A evolução da pintura segundo a física

Embora a arte seja um domínio do subjetivo, um método computacional criado com base em duas medidas inspiradas pela física permitiu quantificar numericamente as mudanças de características visuais na pintura ao longo dos últimos mil anos.

People

Faculty

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Renio dos Santos Mendes

State University of Maringa

Associate Professor

Complex systems, Anomalous Diffusion, Statistical Physics

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Sergio de Picoli Jr.

State University of Maringa

Assistant Professor

Complex Systems, Statistical Physics

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Haroldo Valentin Ribeiro

State University of Maringa

Associate Professor

Complex Systems, Statistical Physics, Anomalous Diffusion, Data Analysis

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Max Javier Jáuregui Rodríguez

State University of Maringa

Assistant Professor

Complex Systems, Statistical Physics, Nonextensive Statistical Mechanics

Postdoctoral researchers

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Arthur Augusto Barizon Pessa

State University of Maringa

Postdoctoral researcher

Complex Systems, Complex Networks, Time Series Analysis

Ph.D. students

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Leonardo Ribeiro da Cunha

State University of Maringa

Ph.D. student

Complex Systems

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Alvaro Franco Martins

State University of Maringa

Ph.D. student

Complex Systems

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Jean Hideaki Yamada Passos

State University of Maringa

Ph.D. student

Complex Systems

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Anna Laura Ferreira Lucchi

State University of Maringa

Ph.D. student

Complex Systems

Master students

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Leonardo Gabriel José Mendes Voltarelli

State University of Maringa

Master Student

Complex Systems

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Mateus Moreira Tarozo

State University of Maringa

Master Student

Complex Systems

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Mônica Valério Prates

State University of Maringa

Master Student

Complex Systems, Complex Networks

Undergrad students

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Angelo Aggio Flores

State University of Maringa

Undergrad student

Complex Systems

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Mateus Kiyugoro Machado Watanabe

State University of Maringa

Undergrad student

Complex Systems

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Renato Hiroaki Ivanaga

State University of Maringa

Undergrad student

Complex Systems