Complex Lab

Research group on complex systems at the State University of Maringa

Recent Publications

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 …

The Physics of Cities

The word “physics” can be understood in at least two ways. First, based on the Greek origin of the word, physics means …

Characterizing postural sway signals by the analysis of zero-crossing patterns

Center of pressure (COP) signals have been widely used to investigate various aspects of human balance during quiet standing. Here, we …

On the dynamics of reporting data: A case study of UFO sightings

There are a growing number of large databases online. In this study, we used data from 80,332 cases of UFO sightings reported from 1906 …

Popularity of Video Games and Collective Memory

Describing the permanence of cultural objects is an important step in understanding societal trends. A relatively novel cultural object …

Clustering free-falling paper motion with complexity and entropy

Many simple natural phenomena are characterized by complex motion that appears random at first glance, but that often displays …

Universality of political corruption networks

Corruption crimes demand highly coordinated actions among criminal agents to succeed. But research dedicated to corruption networks is …

Permutation Jensen-Shannon distance: A versatile and fast symbolic tool for complex time-series analysis

The main motivation of this paper is to introduce the permutation Jensen-Shannon distance, a symbolic tool able to quantify the degree …

News and press coverage

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.

Tech Xplore: Machine learning enables physics-inspired metrics for analyzing art

An international research collaborative reports that a systematized AI analysis of artwork produced over the last millenium yields revealing information about historical evolutionary artistic trends. Additionally, the results map well to canonical concepts about styles and periods of art history.

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

Assistant 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

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Denner Serafim Vieira

State University of Maringa

Assistant Professor

Complex Systems

Ph.D. students

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Arthur Augusto Barizon Pessa

State University of Maringa

Ph.D. student

Complex Systems, Complex Networks, Time Series Analysis

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Leonardo Ribeiro da Cunha

State University of Maringa

Ph.D. student

Complex Systems

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Andre Seiji Sunahara

State University of Maringa

Ph.D. student

Complex systems, Science of Science, Data visualization

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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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Paulo Henrique Gonsalves

State University of Maringa

Master Student

Complex Systems

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Mateus Moreira Tarozo

State University of Maringa

Master Student

Complex Systems

Undergrad students

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Carlos Henrique Batistela

State University of Maringa

Undergrad student

Complex Systems

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Guilherme Guimaraes Astrath

State University of Maringa

Undergrad student

Complex Systems