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ARXIV:2603.03078 · REINFORCEMENT LEARNING · SUBMITTED 02 APR · 02:30 UTC · FRESHNESS STALE
ARXIV:2603.03078REINFORCEMENT LEARNINGSUBMITTED 02 APR · 02:30 UTCFRESHNESS STALEarXiv
Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning.
Opportunity summary
Pain Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning.
Evidence 0 refs | 0 sources | 17% coverage
Blocker Evidence unverified
Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
Agentic Reinforcement Learning (Agentic RL) has shown remarkable potential in large language model-based (LLM) agents. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
ScienceToStartup currently rates this 5.0/10 on the public viability pass. To achieve this, we decompose the Agentic RL training process into two phases: (i) Hybrid-policy Agentic Rollout, and (ii) Retrieval-aware Policy Optimization.
Reinforcement Learning moved forward this cycle; last verified April 2026. Public score 5.0/10.
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Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning.
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10.48550/arXiv.2603.03078Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning.
Abstract
Agentic Reinforcement Learning (Agentic RL) has shown remarkable potential in large language model-based (LLM) agents. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning. However, an inherent limitation of existing Agentic RL methods is their reliance on a pure on-policy paradigm for exploration, restricting exploration to the agent's self-generated outputs and preventing the discovery of new reasoning perspectives for further improvement. While recent efforts incorporate auxiliary off-policy signals to enhance exploration, they typically utilize full off-policy trajectories for trajectory-level policy estimation, overlooking the necessity for the fine-grained, step-level exploratory dynamics within agentic rollout. In this paper, we revisit exploration in Agentic RL and propose Retrieval-Augmented Policy Optimization (RAPO), a novel RL framework that introduces retrieval to explicitly expand exploration during training. To achieve this, we decompose the Agentic RL training process into two phases: (i) Hybrid-policy Agentic Rollout, and (ii) Retrieval-aware Policy Optimization. Specifically, we propose a Hybrid-policy Agentic Rollout strategy, which allows the agents to continuously reason over the retrieved off-policy step-level traces. It dynamically extends the reasoning receptive field of agents, enabling broader exploration conditioned on external behaviors. Subsequently, we introduce the Retrieval-aware Policy Optimization mechanism, which calibrates the policy gradient estimation with retrieval reward and importance shaping, stabilizing training and prioritizing retrieval-illuminating exploration. Extensive experiments show that RAPO achieves an +5.0% average gain on fourteen datasets across three agentic reasoning tasks, while delivering 1.2x faster training efficiency.
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PROBLEM
Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
METHOD
Agentic Reinforcement Learning (Agentic RL) has shown remarkable potential in large language model-based (LLM) agents. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
RESULT
ScienceToStartup currently rates this 5.0/10 on the public viability pass. To achieve this, we decompose the Agentic RL training process into two phases: (i) Hybrid-policy Agentic Rollout, and (ii) Retrieval-aware Policy Optimization.
WHY NOW
Reinforcement Learning moved forward this cycle; last verified April 2026. Public score 5.0/10.
Abstract-backed public claims while anchored extraction refreshes.
Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
Abstract-backed fallback claim; anchored extraction has not materialized a public claim row yet.
partial
Agentic Reinforcement Learning (Agentic RL) has shown remarkable potential in large language model-based (LLM) agents. These works can empower LLM agents to tackle complex tasks via multi-step, tool-integrated reasoning.
Abstract-backed fallback claim; anchored extraction has not materialized a public claim row yet.
partial
ScienceToStartup currently rates this 5.0/10 on the public viability pass. To achieve this, we decompose the Agentic RL training process into two phases: (i) Hybrid-policy Agentic Rollout, and (ii) Retrieval-aware Policy Optimization.
Abstract-backed fallback claim; anchored extraction has not materialized a public claim row yet.
partial
Reinforcement Learning moved forward this cycle; last verified April 2026. Public score 5.0/10.
Abstract-backed fallback claim; anchored extraction has not materialized a public claim row yet.
partial
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Develop Retrieval-Augmented Policy Optimization for enhanced exploration in LLM-based agentic reasoning.
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Reinforcement Learning
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