D-MARL: A Dynamic Communication-Based Action Space Enhancement for Multi Agent Reinforcement Learning Exploration of Large Scale Unknown Environments. - Gabriele Calzolari; Vidya Sumathy; Christoforos Kanellakis; George Nikolakopoulos (IROS, 2024)

Reinforcement Learning Driven Multi-Robot Exploration via Explicit Communication and Density-Based Frontier Search. - Gabriele Calzolari; Vidya Sumathy; Christoforos Kanellakis; George Nikolakopoulos (CoRR, 2024)

Investigating the Impact of Communication-Induced Action Space on Exploration of Unknown Environments with Decentralized Multi-Agent Reinforcement Learning. - Gabriele Calzolari; Vidya Sumathy; Christoforos Kanellakis; George Nikolakopoulos (CoRR, 2024)

A Graph-Based Reinforcement Learning Approach with Frontier Potential Based Reward for Safe Cluttered Environment Exploration. - Gabriele Calzolari; Vidya Sumathy; Christoforos Kanellakis; George Nikolakopoulos (CoRR, 2025)