collaborators

11 papers

cs.MA2026

Responsibility in Multi-Agent Sequential Decision-Making: Comparing Human Judgments to Formal Models of Causal Attribution

Nripsuta Ani Saxena, Stelios Triantafyllou, Goran Radanović

With the growing adoption of artificial intelligence in high-stakes decision-making, identifying the causes of outcomes--particularly failures--and determining who is responsible h…

cs.CR2026

CONTRA: Red-Teaming Configurations of Personalizable Agents

Jonathan Nöther, Adish Singla, Goran Radanovic

Recent tools such as OpenClaw have extended the capabilities of LLM-based agents from simple dialog-based systems to fully autonomous agents. These systems allow personalization of…

cs.LG2026

Distributionally Robust Reinforcement Learning with Human Feedback

Debmalya Mandal, Paulius Sasnauskas, Goran Radanovic

Reinforcement learning from human feedback (RLHF) has evolved to be one of the main methods for fine-tuning large language models (LLMs). However, existing RLHF methods are non-rob…

cs.LG2026

MaMa: A Game-Theoretic Approach for Designing Safe Agentic Systems

Jonathan Nöther, Adish Singla, Goran Radanovic

LLM-based multi-agent systems have demonstrated impressive capabilities, but they also introduce significant safety risks when individual agents fail or behave adversarially. In th…

stat.ML2026

Sparse Offline Reinforcement Learning with Corruption Robustness

Nam Phuong Tran, Andi Nika, Goran Radanovic +2

We investigate robustness to strong data corruption in offline sparse reinforcement learning (RL). In our setting, an adversary may arbitrarily perturb a fraction of the collected…

cs.AI2025

Counterfactual Effect Decomposition in Multi-Agent Sequential Decision Making

Stelios Triantafyllou, Aleksa Sukovic, Yasaman Zolfimoselo +1

We address the challenge of explaining counterfactual outcomes in multi-agent Markov decision processes. In particular, we aim to explain the total counterfactual effect of an agen…