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Sparse representation, which uses dictionary atoms to reconstruct input vectors, has been studied intensively in recent years. A proper dictionary is a key for the success of sparse representation. In this paper, an active dictionary…

Computer Vision and Pattern Recognition · Computer Science 2014-09-30 Jin Xu , Haibo He , Hong Man

Discriminative Dictionary Learning (DL) methods have been widely advocated for image classification problems. To further sharpen their discriminative capabilities, most state-of-the-art DL methods have additional constraints included in the…

Machine Learning · Computer Science 2019-03-08 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

In this paper, we address the problem of discriminative dictionary learning (DDL), where sparse linear representation and classification are combined in a probabilistic framework. As such, a single discriminative dictionary and linear…

Computer Vision and Pattern Recognition · Computer Science 2011-09-13 Bernard Ghanem , Narendra Ahuja

Sparsity driven signal processing has gained tremendous popularity in the last decade. At its core, the assumption is that the signal of interest is sparse with respect to either a fixed transformation or a signal dependent dictionary. To…

Computer Vision and Pattern Recognition · Computer Science 2014-06-10 Yuanming Suo , Minh Dao , Umamahesh Srinivas , Vishal Monga , Trac D. Tran

Sparse coding with dictionary learning (DL) has shown excellent classification performance. Despite the considerable number of existing works, how to obtain features on top of which dictionaries can be better learned remains an open and…

Computer Vision and Pattern Recognition · Computer Science 2016-08-08 Weiyang Liu , Zhiding Yu , Yandong Wen , Rongmei Lin , Meng Yang

Recent years have witnessed the success of dictionary learning (DL) based approaches in the domain of pattern classification. In this paper, we present an efficient structured dictionary learning (ESDL) method which takes both the diversity…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Zi-Qi Li , Jun Sun , Xiao-Jun Wu , He-Feng Yin

Supervised dictionary learning (SDL) is a classical machine learning method that simultaneously seeks feature extraction and classification tasks, which are not necessarily a priori aligned objectives. The goal of SDL is to learn a…

Machine Learning · Statistics 2022-06-15 Joowon Lee , Hanbaek Lyu , Weixin Yao

Previous researches have demonstrated that the framework of dictionary learning with sparse coding, in which signals are decomposed as linear combinations of a few atoms of a learned dictionary, is well adept to reconstruction issues. This…

Computer Vision and Pattern Recognition · Computer Science 2012-03-06 Shu Kong , Donghui Wang

A discriminative structured analysis dictionary is proposed for the classification task. A structure of the union of subspaces (UoS) is integrated into the conventional analysis dictionary learning to enhance the capability of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

In this paper, we propose the multi-domain dictionary learning (MDDL) to make dictionary learning-based classification more robust to data representing in different domains. We use adversarial neural networks to generate data in different…

Computer Vision and Pattern Recognition · Computer Science 2018-11-04 Cho Ying Wu , Ulrich Neumann

In this paper, we propose a non-negative representation based discriminative dictionary learning algorithm (NRDL) for multicategory face classification. In contrast to traditional dictionary learning methods, NRDL investigates the use of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Zhe Chen , Xiao-Jun Wu , Josef Kittler

We propose a computationally efficient and high-performance classification algorithm by incorporating class structural information in analysis dictionary learning. To achieve more consistent classification, we associate a class…

Computer Vision and Pattern Recognition · Computer Science 2018-05-03 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

We propose a novel structured discriminative block-diagonal dictionary learning method, referred to as scalable Locality-Constrained Projective Dictionary Learning (LC-PDL), for efficient representation and classification. To improve the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Zhao Zhang , Weiming Jiang , Zheng Zhang , Sheng Li , Guangcan Liu , Jie Qin

In this paper, we propose a structured Robust Adaptive Dic-tionary Pair Learning (RA-DPL) framework for the discrim-inative sparse representation learning. To achieve powerful representation ability of the available samples, the setting of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-21 Yulin Sun , Zhao Zhang , Weiming Jiang , Zheng Zhang , Li Zhang , Shuicheng Yan , Meng Wang

We propose a joint subspace recovery and enhanced locality based robust flexible label consistent dictionary learning method called Robust Flexible Discriminative Dictionary Learning (RFDDL). RFDDL mainly improves the data representation…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Zhao Zhang , Jiahuan Ren , Weiming Jiang , Zheng Zhang , Richang Hong , Shuicheng Yan , Meng Wang

Multi-view multi-label learning frequently suffers from simultaneous feature absence and incomplete annotations, due to challenges in data acquisition and cost-intensive supervision. To tackle the complex yet highly practical problem while…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Quanjiang Li , Zhiming Liu , Tianxiang Xu , Tingjin Luo , Chenping Hou

Despite the fact that different objects possess distinct class-specific features, they also usually share common patterns. This observation has been exploited partially in a recently proposed dictionary learning framework by separating the…

Computer Vision and Pattern Recognition · Computer Science 2017-10-11 Tiep Vu , Vishal Monga

The feasibility of deep neural networks (DNNs) to address data stream problems still requires intensive study because of the static and offline nature of conventional deep learning approaches. A deep continual learning algorithm, namely…

Machine Learning · Computer Science 2020-01-10 Andri Ashfahani , Mahardhika Pratama

Despite the fact that different objects possess distinct class-specific features, they also usually share common patterns. Inspired by this observation, we propose a novel method to explicitly and simultaneously learn a set of common…

Computer Vision and Pattern Recognition · Computer Science 2016-05-19 Tiep H. Vu , Vishal Monga

Convolutional Dictionary Learning (CDL) has emerged as a powerful approach for signal representation by learning translation-invariant features through convolution operations. While existing CDL methods are predominantly designed and used…

Signal Processing · Electrical Eng. & Systems 2025-05-22 Hao Chen , Dayuan Tan
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