Lucas Raniére Juvino Santos

About

I am a computer scientist working at the intersection of social computing, natural language processing, and machine learning, with research spanning political polarization on social media, intelligent agents for fact-checking, and applied computer vision. I currently work on Judo-AI, applying computer vision to combat sports.

Academic Experience

Ph.D. in Computer Science

Federal University of Campina Grande, Campina Grande – PB, Brazil · 2021 – 2025

• Research topics: political polarization and radicalization on social media networks.
• December 2023 – August 2024: Visiting Ph.D. Researcher at Indiana University (Bloomington, Indiana).

Master's Degree in Computer Science

Federal University of Campina Grande, Campina Grande – PB, Brazil · 2018 – 2020

• Research topics: experimental software engineering and software artifact traceability.
• Dissertation: Improving Traceability Recovery Between Bug Reports and Manual Test Cases.

Bachelor's Degree in Computer Science

Federal University of Alagoas, Arapiraca – AL, Brazil · 2012 – 2017

• Research topics: text translation into sign language and digital inclusion of deaf people.
• Term paper: Use of Probabilistic Reasoning to Resolve Lexical Ambiguities in Portuguese.

Research Projects

Judo-AI — Applied Computer Vision for combat sports

Software Practices Laboratory (SPLab – UFCG) · IBM · Flamengo · 2025 – present

• Computer vision
  • Object detection
  • Video segmentation
  • Human action recognition
  • Video understanding

Agents4Good — Intelligent Agents for Automatic Fact-checking

Federal University of Campina Grande · Kunumi Institute · 2024 – 2025

• Social computing
• AI agents
  • LangChain and LangGraph
• Natural language processing
  • Speech analysis
  • Argument analysis
  • Toxicity detection

Advanced Intelligent Channels — Applied ML for sales/support chat automation

Federal University of Campina Grande · Dell · 2021 – 2022

• Natural language processing
• Machine learning

Publications