I am currently a postdoctoral researcher at the IT University of Copenhagen since March 2025, with research focused on privacy-preserving machine learning related to intrusion detection systems.

PhD in Computer Science being advised by Dr. Ricardo Jacobi (University of Brasília) and co-advise Dr. Anderson Nascimento(University of Washington at the time of my doctorate) from University of Brasília in 2024.

Master in Computer Engineering, advised by Paulo Barreto from the Polytechnic School of the University of São Paulo in 2010, with a thesis on Analyzing the feasibility of implementing post-quantum algorithms based on multivariate quadratic quasigroups processing platforms is limited.

Bachelor's in Computer Science from the University of Amazonas in 2003.

I am broadly interested in Privacy-Preserving Machine Learning. Currently, my research focuses on privacy-preserving machine learning and cybersecurity.

I like traveling, drawing, reading, and watching movies when not working.

Journals

• MAIA, RICARDO J. M.; RAY, DUSTIN ; PENTYALA, SIKHA ; DOWSLEY, RAFAEL ; DE COCK, MARTINE ; NASCIMENTO, ANDERSON C. A. ; JACOBI, RICARDO . An end-to-end framework for private DGA detection as a service. PLoS One, v. 19, p. e0304476, 2024. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0304476
• VOS, JELLE ; PENTYALA, SIKHA ; GOLOB, STEVEN ; MAIA, RICARDO ; KELLEY, DEAN ; ERKIN, ZEKERIYA ; DE COCK, MARTINE ; NASCIMENTO, ANDERSON . Privacy-Preserving Membership Queries for Federated Anomaly Detection. Proceedings on Privacy Enhancing Technologies, v. 2024, p. 186-201, 2024. https://petsymposium.org/popets/2024/popets-2024-0074.php
• Melanson D, Maia R, Kim HS, Nascimento A, De Cock M. Secure Multi-Party Computation for Personalized Human Activity Recognition. Neural Processing Letters. 2023 Mar 10:1-27. https://link.springer.com/article/10.1007/s11063-023-11182-8
• Enamoto L, Santos AR, Maia R, Weigang L, Filho GP. Multi-label legal text classification with BiLSTM and attention. International Journal of Computer Applications in Technology. 2022;68(4):369-78. https://dl.acm.org/doi/abs/10.1504/ijcat.2022.125186
• Maia, Ricardo José Menezes, Paulo Sérgio Licciardi Messeder Barreto, and Bruno Trevizan de Oliveira. "Implementation of multivariate quadratic quasigroup for wireless sensor network." Transactions on Computational Science XI: Special Issue on Security in Computing, Part II (2010): 64-78. https://doi.org/10.1007/978-3-642-17697-5_4

Papers on Arxiv

• S. Pentyala, D. Railsback, R. Maia, R. Dowsley, D. Melanson, A. Nascimento, M. De Cock Training Differentially Private Models with Secure Multiparty Computation (arXiv)

Awards

• U.S. PETs Prize Challenge: Phase 2 (Financial Crime?Federated), Team PPMLHuskies. Competition Organized by the White House of the USA (HTML)

• Winner of Track III of the iDASH2021 secure genome analysis competition. (HTML)