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It is crucial to learn the shared structures among functional predictors, as these structures characterize how predictor components exert common effects and, more generally, how predictors are homogeneously associated with the response.…

Methodology · Statistics 2026-04-27 Shuhao Jiao , Hernando Ombao , Ian W. McKeague

In this paper, we propose a very concise deep learning approach for collaborative filtering that jointly models distributional representation for users and items. The proposed framework obtains better performance when compared against…

Information Retrieval · Computer Science 2015-02-17 Zhang Junlin , Cai Heng , Huang Tongwen , Xue Huiping

We focus on a simulation-based optimization problem of choosing the best design from the feasible space. Although the simulation model can be queried with finite samples, its internal processing rule cannot be utilized in the optimization…

Machine Learning · Computer Science 2021-11-02 Kuo Li , Qing-Shan Jia , Jiaqi Yan

In this work, we consider policy-based methods for solving the reinforcement learning problem, and establish the sample complexity guarantees. A policy-based algorithm typically consists of an actor and a critic. We consider using various…

Machine Learning · Computer Science 2023-01-16 Zaiwei Chen , Siva Theja Maguluri

Constructing a consistent shared spatial memory is a critical challenge in multi-agent systems, where partial observability and limited bandwidth often lead to catastrophic failures in coordination. We introduce a multi-agent predictive…

Artificial Intelligence · Computer Science 2026-03-30 Zhengru Fang , Yu Guo , Yuang Zhang , Haonan An , Wenbo Ding , Yuguang Fang

[Zhang, ICML 2018] provided the first decentralized actor-critic algorithm for multi-agent reinforcement learning (MARL) that offers convergence guarantees. In that work, policies are stochastic and are defined on finite action spaces. We…

Machine Learning · Computer Science 2021-02-22 Antoine Grosnit , Desmond Cai , Laura Wynter

Off-policy actor-critic methods in reinforcement learning train a critic with temporal-difference updates and use it as a learning signal for the policy (actor). This design typically achieves higher sample efficiency than purely on-policy…

Machine Learning · Computer Science 2026-01-05 Uğurcan Özalp

For those seeking healthcare advice online, AI based dialogue agents capable of interacting with patients to perform automatic disease diagnosis are a viable option. This application necessitates efficient inquiry of relevant disease…

Machine Learning · Computer Science 2022-06-09 Weijie He , Ting Chen

In this paper, we study the actor-action semantic segmentation problem, which requires joint labeling of both actor and action categories in video frames. One major challenge for this task is that when an actor performs an action, different…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Kang Dang , Chunluan Zhou , Zhigang Tu , Michael Hoy , Justin Dauwels , Junsong Yuan

Modern supply networks are complex interconnected systems. Multi-agent models are increasingly explored to optimise their performance. Most research assumes agents will have full observability of the system by having a single policy…

Multiagent Systems · Computer Science 2026-03-02 Wan Wang , Haiyan Wang , Adam Sobey

Multi-agent reinforcement learning (MARL) has attracted much research attention recently. However, unlike its single-agent counterpart, many theoretical and algorithmic aspects of MARL have not been well-understood. In this paper, we study…

Machine Learning · Computer Science 2021-12-08 Siliang Zeng , Tianyi Chen , Alfredo Garcia , Mingyi Hong

We propose a fully distributed actor-critic architecture, named Diff-DAC, with application to multitask reinforcement learning (MRL). During the learning process, agents communicate their value and policy parameters to their neighbours,…

Machine Learning · Computer Science 2021-10-26 Sergio Valcarcel Macua , Ian Davies , Aleksi Tukiainen , Enrique Munoz de Cote

In this paper we propose a hybrid architecture of actor-critic algorithms for reinforcement learning in parameterized action space, which consists of multiple parallel sub-actor networks to decompose the structured action space into simpler…

Machine Learning · Computer Science 2019-05-31 Zhou Fan , Rui Su , Weinan Zhang , Yong Yu

Most existing text recognition methods are trained on large-scale synthetic datasets due to the scarcity of labeled real-world datasets. Synthetic images, however, cannot faithfully reproduce real-world scenarios, such as uneven…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Zhengmi Tang , Yuto Mitsui , Tomo Miyazaki , Shinichiro Omachi

Many tasks in data mining and related fields can be formalized as matching between objects in two heterogeneous domains, including collaborative filtering, link prediction, image tagging, and web search. Machine learning techniques,…

Machine Learning · Computer Science 2014-10-24 Jingbo Shang , Tianqi Chen , Hang Li , Zhengdong Lu , Yong Yu

Deep convolutional neural networks (CNNs) have shown state-of-the-art performances in various computer vision tasks. Advances on CNN architectures have focused mainly on designing convolutional blocks of the feature extractors, but less on…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Jaemin Lee , Minseok Seo , Jongchan Park , Dong-Geol Choi

Deterministic policy gradient algorithms for continuous control suffer from value estimation biases that degrade performance. While double critics reduce such biases, the exploration potential of double actors remains underexplored.…

Machine Learning · Computer Science 2025-11-21 Haohui Chen , Zhiyong Chen , Aoxiang Liu , Wentuo Fang

Multi-agent reinforcement learning shines as the pinnacle of multi-agent systems, conquering intricate real-world challenges, fostering collaboration and coordination among agents, and unleashing the potential for intelligent…

Multiagent Systems · Computer Science 2023-12-27 Jiawei Wang , Jian Zhao , Zhengtao Cao , Ruili Feng , Rongjun Qin , Yang Yu

Distributed representation plays an important role in deep learning based natural language processing. However, the representation of a sentence often varies in different tasks, which is usually learned from scratch and suffers from the…

Computation and Language · Computer Science 2018-04-24 Renjie Zheng , Junkun Chen , Xipeng Qiu

We study the benefit of sharing representations among tasks to enable the effective use of deep neural networks in Multi-Task Reinforcement Learning. We leverage the assumption that learning from different tasks, sharing common properties,…

Machine Learning · Computer Science 2024-01-19 Carlo D'Eramo , Davide Tateo , Andrea Bonarini , Marcello Restelli , Jan Peters