Research

My research explores how distributed systems, data, and thoughtful interfaces can make complex infrastructure easier to understand and operate.

Scientific Papers

First author · 26th Brazilian Congress of Automation (CBA) · 2026

Scalable and Interoperable Web SCADA System for Electric Bicycle Sharing Based on the IEC 61850 Standard

A distributed monitoring architecture for shared electric bicycles, combining IEC 61850/MMS interoperability, real-time Web SCADA supervision, Kubernetes autoscaling, and a virtualized testbed validated with up to 1,000 simulated bicycles.

João presenting the MoveUFF bicycles slide at CBA 2026João speaking to the audience during the CBA 2026 presentationClose-up of João presenting the paper at CBA 2026

Scholarship: PIBITI/CNPq, advised by Prof. Yona Lopes

Project funding: MoveUFF is part of HUBMOB, funded by Finep (economic subsidy) in partnership with Bike Fácil

Authors: João L. Marinho*, Giovanna Siqueira**, Nájila Martins**, and Yona Lopes**

Read the paper

Ongoing Research

2026 · Combinatorial optimization · Python · CVRPLIB

CVRP Route Optimization

A reproduction and extension of a genetic algorithm for the Capacitated Vehicle Routing Problem, enhanced with Clarke-Wright Savings and 2-opt. The implementation reduced the average gap from 15.45% to 8.25% and outperformed the paper's baseline in 9 of 10 benchmark instances.

Advisor: Prof. Luiz Satoru Ochi (Institute of Computing, UFF)

Status: experiments completed; paper in preparation

View source code

2026 · Undergraduate thesis · Human-Computer Interaction

From Monitoring to Decision-Making: User-Centered Redesign of the MoveUFF Supervisory System

Advisors: Prof. Luciana Cardoso de Castro Salgado and Prof. Yona Lopes (co-advisor)

Status: in progress, expected December 2026

Events

  • 2026 · 26th Brazilian Congress of Automation (CBA), São Paulo: oral presentation of the paper above
  • 2025 · 10th Southeast Regional School of High Performance Computing (ERAD-SE), SBC, Niterói: attendee
  • 2024 · 9th Rio de Janeiro Regional School of High Performance Computing (ERAD-RJ), SBC, Rio de Janeiro: attendee
© 2026 João Marinho. All Rights Reserved.