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cs.IR2026
IRAH: Hierarchical Agentic Tree Search for Retrieval Pipeline Optimization
Maria Ana Cardei, Aniket Singh, Amir Moghadam +2
Optimizing Information Retrieval (IR) pipelines for Retrieval-Augmented Generation (RAG) requires jointly selecting structural components and numerical hyperparameters under limite…
cs.MA2026
Coordination Matters: Process-Aware Evaluation of Cooperative Multi-Agent Reinforcement Learning
Maria Ana Cardei, Matthew Landers, Afsaneh Doryab
Cooperative multi-agent reinforcement learning (MARL) benchmarks commonly emphasize aggregate outcomes such as return, success rate, or completion time. While essential, these metr…