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In this paper we explore how actor-critic methods in deep reinforcement learning, in particular Asynchronous Advantage Actor-Critic (A3C), can be extended with agent modeling. Inspired by recent works on representation learning and…

Multiagent Systems · Computer Science 2019-07-24 Pablo Hernandez-Leal , Bilal Kartal , Matthew E. Taylor

The trend is to implement intelligent agents capable of analyzing available information and utilize it efficiently. This work presents a number of reinforcement learning (RL) architectures; one of them is designed for intelligent agents.…

Machine Learning · Computer Science 2020-04-07 Ala'eddin Masadeh , Zhengdao Wang , Ahmed E. Kamal

Actor-critic (AC) algorithms are a class of model-free deep reinforcement learning algorithms, which have proven their efficacy in diverse domains, especially in solving continuous control problems. Improvement of exploration (action…

Machine Learning · Computer Science 2022-10-04 Chayan Banerjee , Zhiyong Chen , Nasimul Noman

The exploration mechanism used by a Deep Reinforcement Learning (RL) agent plays a key role in determining its sample efficiency. Thus, improving over random exploration is crucial to solve long-horizon tasks with sparse rewards. We propose…

Machine Learning · Computer Science 2019-12-17 Andrey Kurenkov , Ajay Mandlekar , Roberto Martin-Martin , Silvio Savarese , Animesh Garg

Robust Reinforcement Learning aims to derive optimal behavior that accounts for model uncertainty in dynamical systems. However, previous studies have shown that by considering the worst case scenario, robust policies can be overly…

Machine Learning · Computer Science 2018-10-25 Esther Derman , Daniel J. Mankowitz , Timothy A. Mann , Shie Mannor

Large language models (LLMs) have demonstrated a remarkable ability to serve as general-purpose tools for various language-based tasks. Recent works have demonstrated that the efficacy of such models can be improved through iterative dialog…

Computation and Language · Computer Science 2025-03-07 Andrew Estornell , Jean-Francois Ton , Yuanshun Yao , Yang Liu

When deploying autonomous agents in the real world, we need effective ways of communicating objectives to them. Traditional skill learning has revolved around reinforcement and imitation learning, each with rigid constraints on the format…

Artificial Intelligence · Computer Science 2019-11-21 Mark Woodward , Chelsea Finn , Karol Hausman

Reinforcement learning has attracted great attention recently, especially policy gradient algorithms, which have been demonstrated on challenging decision making and control tasks. In this paper, we propose an active multi-step TD algorithm…

Machine Learning · Computer Science 2019-11-28 Gang Chen , Dingcheng Li , Ran Xu

Most existing dialogue systems are user-driven, primarily designed to fulfill user requests. However, in many critical real-world scenarios, a conversational agent must proactively extract information to achieve its own objectives rather…

Computation and Language · Computer Science 2026-05-18 Xubo Lin , Zezhi Deng , Shihao Wang , Grace Hui Yang , Yang Deng

The design of recommendations strategies in the adaptive learning system focuses on utilizing currently available information to provide individual-specific learning instructions for learners. As a critical motivate for human behaviors,…

Computers and Society · Computer Science 2019-10-29 Ruijian Han , Kani Chen , Chunxi Tan

We propose a new algorithm, Mean Actor-Critic (MAC), for discrete-action continuous-state reinforcement learning. MAC is a policy gradient algorithm that uses the agent's explicit representation of all action values to estimate the gradient…

The ultimate goal of embodied agents is to create collaborators that can interact with humans, not mere executors that passively follow instructions. This requires agents to communicate, coordinate, and adapt their actions based on human…

Robotics · Computer Science 2025-09-22 Xingyao Lin , Xinghao Zhu , Tianyi Lu , Sicheng Xie , Hui Zhang , Xipeng Qiu , Zuxuan Wu , Yu-Gang Jiang

Due to their complex nonlinear dynamics and batch-to-batch variability, batch processes pose a challenge for process control. Due to the absence of accurate models and resulting plant-model mismatch, these problems become harder to address…

Machine Learning · Computer Science 2022-05-03 Tanuja Joshi , Hariprasad Kodamana , Harikumar Kandath , Niket Kaisare

We explore an active learning approach for dynamic fair resource allocation problems. Unlike previous work that assumes full feedback from all agents on their allocations, we consider feedback from a select subset of agents at each epoch of…

Machine Learning · Computer Science 2024-06-24 Riddhiman Bhattacharya , Thanh Nguyen , Will Wei Sun , Mohit Tawarmalani

We present temporally abstract actor-critic (TAAC), a simple but effective off-policy RL algorithm that incorporates closed-loop temporal abstraction into the actor-critic framework. TAAC adds a second-stage binary policy to choose between…

Machine Learning · Computer Science 2021-10-13 Haonan Yu , Wei Xu , Haichao Zhang

Learning from data of past tasks can substantially improve the accuracy of mechatronic systems. Often, for fast and safe learning a model of the system is required. The aim of this paper is to develop a model-free approach for fast and safe…

Systems and Control · Electrical Eng. & Systems 2020-07-06 Maurice Poot , Jim Portegies , Tom Oomen

We present a novel interactive learning protocol that enables training request-fulfilling agents by verbally describing their activities. Unlike imitation learning (IL), our protocol allows the teaching agent to provide feedback in a…

Computation and Language · Computer Science 2021-06-16 Khanh Nguyen , Dipendra Misra , Robert Schapire , Miro Dudík , Patrick Shafto

Formation strategy is one of the most important parts of many multi-agent systems with many applications in real world problems. In this paper, a framework for learning this task in a limited domain (restricted environment) is proposed. In…

Fluid human-agent communication is essential for the future of human-in-the-loop reinforcement learning. An agent must respond appropriately to feedback from its human trainer even before they have significant experience working together.…

Machine Learning · Computer Science 2021-09-16 Ishaan Shah , David Halpern , Kavosh Asadi , Michael L. Littman

Agentic Artificial Intelligence (AI) represents a paradigm shift from reactive systems to proactive, autonomous decision making frameworks. Existing AI-based educational systems remain fragmented and lack multi-level integration across…

Multiagent Systems · Computer Science 2026-04-21 Arya Mary K J , Deepthy K Bhaskar , Sinu T S , Binu V P