Aug 2026· Zenodo (CERN European Organization for Nuclear Research)
Reinforcement Learning in Robotics
Abstract
This paper proposes a novel approach to reinforcement learning (RL) that leverages relational reasoning through the incorporation of graph-based reward shaping. Traditional RL algorithms often struggle in environments exhibiting complex relationships between entities, leading to inefficient learning and suboptimal policies. Our method addresses this limitation by enabling the agent to explicitly learn and represent these relationships, utilizing a graph structure to encode contextual information. The core idea is to shape the reward function based on the agent's understanding of these relationships, guiding it towards more effective exploration and exploitation. This approach is demonstrated through a theoretical framework outlining the algorithm and key formulas, along with a conceptual explanation of its implementation. The potential for enhanced learning efficiency and policy quality in environments with inherent relational complexity is highlighted. The algorithm's performance is expected to improve by considering the interactions between entities within an environment, rather than solely focusing on individual state-action pairs.
Model-based life-cycle evaluation indicates that AI-optimized PPP contracts reduce bridges reaching emergency condition by 30%–40% over a 30-year horizon while lowering life-cycle costs by 8%–12% compared with rule-based policies, providing infrastructure agencies and private concessionaires with an integrated AI-driven life-cycle management platform.
Ali Shehadeh, Odey Alshboul· Journal of Legal Affairs and...· 0 citations
This paper presents a two-wheeled mobile robot trajectory-tracking controller combining a particle swarm optimization (PSO)-tuned fuzzy logic controller (FLC) with a residual reinforcement learning (RL) correction layer.PSO tuning reduces the global distance error by 35% and the integral absolute error by 44% over the initial FLC.The residual RL layer further reduces the global distance error by approximately 2.3% and improves cornering-region tracking by 3.9% in RMSE, 4.7% in IAE, and 5.2% in peak distance error.The proposed controller also reduces the global distance error by 41% and 66% relative to independently tuned PID and fuzzy-PID baselines.Trained across four trajectory families with a held-out test split, the generalized agent reduces the average test distance error by 18% relative to the tuned FLC baseline.These results show that a lightweight residual correction improves both accuracy and generalization while preserving the fuzzy controller's interpretability.
Le Ngoc Dung, Luu Hong Quan, Doan Cong Anh· International journal of int...· 0 citations
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