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Quality-Diversity (QD) algorithms have emerged as a powerful optimization paradigm with the aim of generating a set of high-quality and diverse solutions. To achieve such a challenging goal, QD algorithms require maintaining a large archive…

机器学习 · 计算机科学 2024-06-07 Ren-Jian Wang , Ke Xue , Cong Guan , Chao Qian

Class Incremental Learning (CIL) constitutes a pivotal subfield within continual learning, aimed at enabling models to progressively learn new classification tasks while retaining knowledge obtained from prior tasks. Although previous…

机器学习 · 计算机科学 2025-01-14 Jaeill Kim , Wonseok Lee , Moonjung Eo , Wonjong Rhee

We study the problem of safe offline reinforcement learning (RL), the goal is to learn a policy that maximizes long-term reward while satisfying safety constraints given only offline data, without further interaction with the environment.…

机器学习 · 计算机科学 2022-04-11 Haoran Xu , Xianyuan Zhan , Xiangyu Zhu

We propose a novel learning paradigm, Self-Imitation via Reduction (SIR), for solving compositional reinforcement learning problems. SIR is based on two core ideas: task reduction and self-imitation. Task reduction tackles a hard-to-solve…

机器学习 · 计算机科学 2021-03-22 Yunfei Li , Yilin Wu , Huazhe Xu , Xiaolong Wang , Yi Wu

We propose a framework that learns to execute natural language instructions in an environment consisting of goal-reaching tasks that share components of their task descriptions. Our approach leverages the compositionality of both value…

机器学习 · 计算机科学 2021-10-12 Vanya Cohen , Geraud Nangue Tasse , Nakul Gopalan , Steven James , Matthew Gombolay , Benjamin Rosman

Unitary Synthesis, the decomposition of a unitary matrix into a sequence of quantum gates, is a fundamental challenge in quantum compilation. Prevailing reinforcement learning (RL) approaches are often hampered by sparse reward signals,…

量子物理 · 物理学 2026-03-05 Inhoe Koo , Hyunho Cha , Jungwoo Lee

As an effective learning paradigm against insufficient training samples, Multi-Task Learning (MTL) encourages knowledge sharing across multiple related tasks so as to improve the overall performance. In MTL, a major challenge springs from…

机器学习 · 计算机科学 2020-04-30 Zhiyong Yang , Qianqian Xu , Xiaochun Cao , Qingming Huang

This paper is a continuation work of Ren et al. (2026) aiming to further devise q-learning algorithms for mean-field control (MFC) with controlled common noise. Based on the relaxed control formulation, we first establish the martingale…

最优化与控制 · 数学 2026-05-01 Zhenjie Ren , Xiaoli Wei , Xiang Yu , Xun Yu Zhou

The $Q$-learning algorithm is a simple and widely-used stochastic approximation scheme for reinforcement learning, but the basic protocol can exhibit instability in conjunction with function approximation. Such instability can be observed…

机器学习 · 计算机科学 2022-06-03 Andrea Zanette , Martin J. Wainwright

Causal inference is paramount for understanding the effects of interventions, yet extracting personalized insights from increasingly complex data remains a significant challenge for modern machine learning. This is the case, in particular,…

统计方法学 · 统计学 2026-02-12 Filippo Salmaso , Lorenzo Testa , Francesca Chiaromonte

Ensemble methods have been widely applied in Reinforcement Learning (RL) in order to enhance stability, increase convergence speed, and improve exploration. These methods typically work by employing an aggregation mechanism over actions of…

人工智能 · 计算机科学 2019-10-09 Rishav Chourasia , Adish Singla

In recent years, large amounts of electronic health records (EHRs) concerning chronic diseases have been collected to facilitate medical diagnosis. Modeling the dynamic properties of EHRs related to chronic diseases can be efficiently done…

机器学习 · 计算机科学 2025-02-18 Di Wang , Yao Wang , Shao-Bo Lin

This paper studies the transfer reinforcement learning (RL) problem where multiple RL problems have different reward functions but share the same underlying transition dynamics. In this setting, the Q-function of each RL problem (task) can…

In this study, we consider the application of max-plus-linear approximators for Q-function in offline reinforcement learning of discounted Markov decision processes. In particular, we incorporate these approximators to propose novel fitted…

最优化与控制 · 数学 2025-03-11 Y. Liu , M. A. S. Kolarijani

Low-complexity models such as linear function representation play a pivotal role in enabling sample-efficient reinforcement learning (RL). The current paper pertains to a scenario with value-based linear representation, which postulates the…

机器学习 · 计算机科学 2021-10-19 Gen Li , Yuxin Chen , Yuejie Chi , Yuantao Gu , Yuting Wei

In reinforcement learning (RL), Q-learning is a fundamental algorithm whose convergence is guaranteed in the tabular setting. However, this convergence guarantee does not hold under linear function approximation. To overcome this…

机器学习 · 计算机科学 2026-02-04 Hyukjun Yang , Han-Dong Lim , Donghwan Lee

In both the fields of computer science and medicine there is very strong interest in developing personalized treatment policies for patients who have variable responses to treatments. In particular, I aim to find an optimal personalized…

机器学习 · 计算机科学 2014-07-01 Yousuf M. Soliman

Q-learning (QL), a common reinforcement learning algorithm, suffers from over-estimation bias due to the maximization term in the optimal Bellman operator. This bias may lead to sub-optimal behavior. Double-Q-learning tackles this issue by…

机器学习 · 计算机科学 2021-04-21 Oren Peer , Chen Tessler , Nadav Merlis , Ron Meir

For question-answering (QA) tasks, in-context learning (ICL) enables language models to generate responses without modifying their parameters by leveraging examples provided in the input. However, the effectiveness of ICL heavily depends on…

机器学习 · 计算机科学 2025-06-10 Ruhan Wang , Zhiyong Wang , Chengkai Huang , Rui Wang , Tong Yu , Lina Yao , John C. S. Lui , Dongruo Zhou

In this paper, two Q-learning (QL) methods are proposed and their convergence theories are established for addressing the model-free optimal control problem of general nonlinear continuous-time systems. By introducing the Q-function for…

系统与控制 · 计算机科学 2014-10-14 Biao Luo , Derong Liu , Tingwen Huang