模倣学習のサーベイ：アルゴリズム・最近の発展・課題
A Survey of Imitation Learning: Algorithms, Recent Developments, and Challenges
ロボティクスやAIにおける模倣学習（IL）について、基礎的な仮定と手法、最近の進展、課題と今後の研究方向を包括的にまとめたサーベイ論文。
著者: Maryam Zare, Parham M. Kebria, Abbas Khosravi, Saeid Nahavandi
分類: cs.LG, cs.AI, cs.RO, stat.ML
原文アブストラクト
In recent years, the development of robotics and artificial intelligence (AI) systems has been nothing short of remarkable. As these systems continue to evolve, they are being utilized in increasingly complex and unstructured environments, such as autonomous driving, aerial robotics, and natural language processing. As a consequence, programming their behaviors manually or defining their behavior through reward functions (as done in reinforcement learning (RL)) has become exceedingly difficult. This is because such environments require a high degree of flexibility and adaptability, making it challenging to specify an optimal set of rules or reward signals that can account for all possible situations. In such environments, learning from an expert's behavior through imitation is often more appealing. This is where imitation learning (IL) comes into play - a process where desired behavior is learned by imitating an expert's behavior, which is provided through demonstrations. This paper aims to provide an introduction to IL and an overview of its underlying assumptions and approaches. It also offers a detailed description of recent advances and emerging areas of research in the field. Additionally, the paper discusses how researchers have addressed common challenges associated with IL and provides potential directions for future research. Overall, the goal of the paper is to provide a comprehensive guide to the growing field of IL in robotics and AI.
