4 papers
Adaptive Switching Between Leader-Based and Leaderless BFT Protocols
Sudip Bhujel, Yue Li, Ning Zhang +3
Byzantine fault-tolerant (BFT) protocols are known for providing operational consistency and resilience in distributed systems. However, evolving network conditions, often driven b…
Temporal Gradient Inversion for Private Trajectory Reconstruction in Embodied Reinforcement Learning
Sudip Bhujel, Shanghao Shi, Ruiquan Huang +2
Distributed learning in embodied reinforcement-learning agents offers a degree of privacy by retaining raw sensor data on-device and transmitting only policy gradients to the serve…
Model-Consistent Byzantine-Resilient Decentralized Federated Learning for Collaborative Missions
Yue Li, Sudip Bhujel, Cameron Lira +2
Decentralized federated learning (DFL) is a promising paradigm for autonomous nodes to collaboratively train AI models without relying on a central server. However, existing DFL so…
PrivMedChat: End-to-End Differentially Private RLHF for Medical Dialogue Systems
Sudip Bhujel
Large language models are increasingly used for patient-facing medical assistance and clinical decision support, but adapting them to clinical dialogue often requires supervision d…