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In this paper we present a modification to a latent topic model, which makes the model exploit supervision to produce a factorized representation of the observed data. The structured parameterization separately encodes variance that is…

Machine Learning · Computer Science 2013-04-24 Cheng Zhang , Carl Henrik Ek , Andreas Damianou , Hedvig Kjellstrom

Augmentation for dense prediction typically relies on either sample mixing or generative synthesis. Mixing improves robustness but misaligned masks yield soft label ambiguity. Diffusion synthesis increases apparent diversity but, when…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Pengyu Jie , Wanquan Liu , Rui He , Yihui Wen , Deyu Meng , Chenqiang Gao

In this paper we present Collaborative Low-Rank Subspace Clustering. Given multiple observations of a phenomenon we learn a unified representation matrix. This unified matrix incorporates the features from all the observations, thus…

Computer Vision and Pattern Recognition · Computer Science 2017-04-14 Stephen Tierney , Yi Guo , Junbin Gao

On-policy deep reinforcement learning remains a dominant paradigm for continuous control, yet standard implementations rely on Gaussian actors and relatively shallow MLP policies, often leading to brittle optimization when gradients are…

Machine Learning · Computer Science 2026-02-02 Yuexin Bian , Jie Feng , Tao Wang , Yijiang Li , Sicun Gao , Yuanyuan Shi

In this study, we introduce a multi-modal approach that efficiently integrates multi-scale clinical and dermoscopy features within a single network, thereby substantially reducing model parameters. The proposed method includes three novel…

Image and Video Processing · Electrical Eng. & Systems 2024-03-31 Peng Tang , Tobias Lasser

Event perception tasks such as recognizing and localizing actions in streaming videos are essential for scaling to real-world application contexts. We tackle the problem of learning actor-centered representations through the notion of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Sathyanarayanan N. Aakur , Sudeep Sarkar

In decentralized stochastic control, standard approaches for sequential decision-making, e.g. dynamic programming, quickly become intractable due to the need to maintain a complex information state. Computational challenges are further…

Machine Learning · Computer Science 2019-08-08 Kaiqing Zhang , Erik Miehling , Tamer Başar

If learning methods are to scale to the massive sizes of modern datasets, it is essential for the field of machine learning to embrace parallel and distributed computing. Inspired by the recent development of matrix factorization methods…

Machine Learning · Computer Science 2013-10-29 Lester Mackey , Ameet Talwalkar , Michael I. Jordan

Highly automated assembly lines enable significant productivity gains in the manufacturing industry, particularly in mass production condition. Nonetheless, challenges persist in job scheduling for make-to-job and mass customization,…

Neural and Evolutionary Computing · Computer Science 2023-11-22 Lele Li , Liyong Lin

Actor-critic (AC) methods are widely used in reinforcement learning (RL) and benefit from the flexibility of using any policy gradient method as the actor and value-based method as the critic. The critic is usually trained by minimizing the…

Machine Learning · Computer Science 2023-11-01 Sharan Vaswani , Amirreza Kazemi , Reza Babanezhad , Nicolas Le Roux

The rapid growth of wearable sensor technologies holds substantial promise for the field of personalized and context-aware Human Activity Recognition. Given the inherently decentralized nature of data sources within this domain, the…

Signal Processing · Electrical Eng. & Systems 2023-11-09 Ahmad Esmaeili , Zahra Ghorrati , Eric T. Matson

Large Language Models (LLMs) have achieved remarkable advancements in natural language processing tasks, yet they encounter challenges in complex decision-making scenarios that require long-term reasoning and alignment with high-level…

Computation and Language · Computer Science 2025-06-10 Heng Dong , Kefei Duan , Chongjie Zhang

Multi-Agent Reinforcement Learning (MARL) has emerged as a foundational approach for addressing diverse, intelligent control tasks in various scenarios like the Internet of Vehicles, Internet of Things, and Unmanned Aerial Vehicles.…

Multiagent Systems · Computer Science 2024-10-15 Xiaoxue Yu , Rongpeng Li , Chengchao Liang , Zhifeng Zhao

Multiagent reinforcement learning (MARL) has attracted considerable attention due to its potential in addressing complex cooperative tasks. However, existing MARL approaches often rely on frequent exchanges of action or state information…

Machine Learning · Computer Science 2026-01-14 Zhenglong Luo , Zhiyong Chen , Aoxiang Liu , Ke Pan

While there has been substantial success for solving continuous control with actor-critic methods, simpler critic-only methods such as Q-learning find limited application in the associated high-dimensional action spaces. However, most…

Machine Learning · Computer Science 2023-09-27 Tim Seyde , Peter Werner , Wilko Schwarting , Igor Gilitschenski , Martin Riedmiller , Daniela Rus , Markus Wulfmeier

Implicit feedback is widely explored by modern recommender systems. Since the feedback is often sparse and imbalanced, it poses great challenges to the learning of complex interactions among users and items. Metric learning has been…

Information Retrieval · Computer Science 2021-03-30 Yanchao Tan , Carl Yang , Xiangyu Wei , Yun Ma , Xiaolin Zheng

Self-supervised skill learning aims to acquire useful behaviors that leverage the underlying dynamics of the environment. Latent variable models, based on mutual information maximization, have been successful in this task but still struggle…

Machine Learning · Computer Science 2024-03-22 David Emukpere , Bingbing Wu , Julien Perez , Jean-Michel Renders

Expression cloning plays an important role in facial expression synthesis. In this paper, a novel algorithm is proposed for facial expression cloning. The proposed algorithm first introduces a new elastic model to balance the global and…

Graphics · Computer Science 2015-03-03 Yihao Zhang , Weiyao Lin , Bing Zhou , Zhenzhong Chen , Bin Sheng , Jianxin Wu , Wenjun Zhang

We introduce a novel ensemble approach for feature selection based on hierarchical stacking for non-stationarity and/or a limited number of samples with a large number of features. Our approach exploits the co-dependency between features…

Machine Learning · Computer Science 2024-10-08 Aysin Tumay , Mustafa E. Aydin , Ali T. Koc , Suleyman S. Kozat

Foundation models have recently gained tremendous popularity in medical image analysis. State-of-the-art methods leverage either paired image-text data via vision-language pre-training or unpaired image data via self-supervised pre-training…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Lei Zhu , Jun Zhou , Rick Siow Mong Goh , Yong Liu