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Abstract visual reasoning remains challenging as existing methods often prioritize either global context or local row-wise relations, failing to integrate both, and lack intermediate feature constraints, leading to incomplete rule capture…

Artificial Intelligence · Computer Science 2026-04-21 Jiachen Zhang , Chengtai Li , Jianfeng Ren , Linlin Shen , Zheng Lu , Ruibin Bai

Contrastive self-supervised learning (CSL) has managed to match or surpass the performance of supervised learning in image and video classification. However, it is still largely unknown if the nature of the representations induced by the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Rohit Gupta , Naveed Akhtar , Ajmal Mian , Mubarak Shah

Contrastive representation learning (CRL) underpins many modern foundation models. Despite recent theoretical progress, existing analyses suffer from several key limitations: (i) the statistical consistency of CRL remains poorly understood;…

Machine Learning · Computer Science 2026-05-29 Yuanfan Li , Xiyuan Wei , Tianbao Yang , Yiming Ying

Reinforcement Learning from Verifiable Rewards (RLVR) suffers from exploration inefficiency, where models struggle to generate successful rollouts, resulting in minimal learning signal. This challenge is particularly severe for tasks that…

Machine Learning · Computer Science 2026-03-20 Saaket Agashe , Jayanth Srinivasa , Gaowen Liu , Ramana Kompella , Xin Eric Wang

Preference-based reinforcement learning (PbRL) bypasses explicit reward engineering by inferring reward functions from human preference comparisons, enabling better alignment with human intentions. However, humans often struggle to label a…

Machine Learning · Computer Science 2025-06-11 Ni Mu , Hao Hu , Xiao Hu , Yiqin Yang , Bo Xu , Qing-Shan Jia

Deep Reinforcement Learning (DRL) has achieved remarkable advances in sequential decision tasks. However, recent works have revealed that DRL agents are susceptible to slight perturbations in observations. This vulnerability raises concerns…

Machine Learning · Computer Science 2023-12-15 Buqing Nie , Jingtian Ji , Yangqing Fu , Yue Gao

Lifelong learning is critical for embodied agents in open-world environments, where reinforcement learning fine-tuning has emerged as an important paradigm to enable Vision-Language-Action (VLA) models to master dexterous manipulation…

Artificial Intelligence · Computer Science 2026-02-04 Qixin Zeng , Shuo Zhang , Hongyin Zhang , Renjie Wang , Han Zhao , Libang Zhao , Runze Li , Donglin Wang , Chao Huang

An energy-based model (EBM) is a popular generative framework that offers both explicit density and architectural flexibility, but training them is difficult since it is often unstable and time-consuming. In recent years, various training…

Machine Learning · Computer Science 2023-03-07 Hankook Lee , Jongheon Jeong , Sejun Park , Jinwoo Shin

Tactile representation learning (TRL) equips robots with the ability to leverage touch information, boosting performance in tasks such as environment perception and object manipulation. However, the heterogeneity of tactile sensors results…

Robotics · Computer Science 2023-05-02 Ben Zandonati , Ruohan Wang , Ruihan Gao , Yan Wu

Self-supervised methods have shown tremendous success in the field of computer vision, including applications in remote sensing and medical imaging. Most popular contrastive-loss based methods like SimCLR, MoCo, MoCo-v2 use multiple views…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Umangi Jain , Alex Wilson , Varun Gulshan

Deep Reinforcement Learning (DRL) has become a popular method for solving control problems in power systems. Conventional DRL encourages the agent to explore various policies encoded in a neural network (NN) with the goal of maximizing the…

Systems and Control · Electrical Eng. & Systems 2024-10-28 Tong Wu , Anna Scaglione , Daniel Arnold

Reinforcement learning (RL) has been widely applied in recommendation systems due to its potential in optimizing the long-term engagement of users. From the perspective of RL, recommendation can be formulated as a Markov decision process…

Information Retrieval · Computer Science 2023-10-26 Chengpeng Li , Zhengyi Yang , Jizhi Zhang , Jiancan Wu , Dingxian Wang , Xiangnan He , Xiang Wang

In this paper, we present a new cross-architecture contrastive learning (CACL) framework for self-supervised video representation learning. CACL consists of a 3D CNN and a video transformer which are used in parallel to generate diverse…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Sheng Guo , Zihua Xiong , Yujie Zhong , Limin Wang , Xiaobo Guo , Bing Han , Weilin Huang

Several multi-modality representation learning approaches such as LXMERT and ViLBERT have been proposed recently. Such approaches can achieve superior performance due to the high-level semantic information captured during large-scale…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Lei Shi , Kai Shuang , Shijie Geng , Peng Su , Zhengkai Jiang , Peng Gao , Zuohui Fu , Gerard de Melo , Sen Su

Attitude control of fixed-wing unmanned aerial vehicles (UAVs) is a difficult control problem in part due to uncertain nonlinear dynamics, actuator constraints, and coupled longitudinal and lateral motions. Current state-of-the-art…

Systems and Control · Electrical Eng. & Systems 2023-04-20 Eivind Bøhn , Erlend M. Coates , Dirk Reinhardt , Tor Arne Johansen

A residual deep reinforcement learning (RDRL) approach is proposed by integrating DRL with model-based optimization for inverter-based volt-var control in active distribution networks when the accurate power flow model is unknown. RDRL…

Systems and Control · Electrical Eng. & Systems 2024-08-14 Qiong Liu , Ye Guo , Lirong Deng , Haotian Liu , Dongyu Li , Hongbin Sun

Developing an agent in reinforcement learning (RL) that is capable of performing complex control tasks directly from high-dimensional observation such as raw pixels is yet a challenge as efforts are made towards improving sample efficiency…

Machine Learning · Computer Science 2023-01-13 Thanh Nguyen , Tung M. Luu , Thang Vu , Chang D. Yoo

Visual paragraph generation aims to automatically describe a given image from different perspectives and organize sentences in a coherent way. In this paper, we address three critical challenges for this task in a reinforcement learning…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Yadan Luo , Zi Huang , Zheng Zhang , Ziwei Wang , Jingjing Li , Yang Yang

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

When searching for objects in cluttered environments, it is often necessary to perform complex interactions in order to move occluding objects out of the way and fully reveal the object of interest and make it graspable. Due to the…