| 2016 | ISCAS | A block-based Markov random field model estimation for contextual classification using Optimum-Path Forest. | Daniel Osaku, Alexandre L. M. Levada, Joo Paulo Papa |
| 2014 | CIARP | Static Video Summarization through Optimum-Path Forest Clustering. | Guilherme Brando Martins, Luis Claudio Sugi Afonso, Daniel Osaku, Jurandy Almeida, Joo P. Papa |
| 2014 | CIARP | On the Influence of Markovian Models for Contextual-Based Optimum-Path Forest Classification. | Daniel Osaku, Alexandre L. M. Levada, Joo P. Papa |
| 2013 | ACIVS | Optimizing Contextual-Based Optimum-Forest Classification through Swarm Intelligence. | Daniel Osaku, Rodrigo Nakamura, Joo Paulo Papa, Alexandre L. M. Levada, Fabio A. M. Cappabianco, Alexandre X. Falco |
| 2013 | CAIP | OPF-MRF: Optimum-Path Forest and Markov Random Fields for Contextual-Based Image Classification. | Rodrigo Nakamura, Daniel Osaku, Alexandre L. M. Levada, Fabio Augusto Cappabianco, Alexandre X. Falco, Joo Paulo Papa |
| 2011 | ICIAP | A Graph-Based Framework for Thermal Faceprint Characterization. | Daniel Osaku, Aparecido Nilceu Marana, Joo Paulo Papa |