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Extremely large reconfigurable intelligent surface (XL-RIS) is emerging as a promising key technology for 6G systems. To exploit XL-RIS's full potential, accurate channel estimation is essential. This paper investigates channel estimation…

Signal Processing · Electrical Eng. & Systems 2024-09-26 Peicong Zheng , Xuantao Lyu , Ye Wang , Yi Gong

Dictionary Learning (DL) is one of the leading sparsity promoting techniques in the context of image classification, where the "dictionary" matrix D of images and the sparse matrix X are determined so as to represent a redundant image…

Numerical Analysis · Mathematics 2022-03-10 Domitilla Brandoni , Margherita Porcelli , Valeria Simoncini

Constrained image splicing detection and localization (CISDL) is a fundamental task of multimedia forensics, which detects splicing operation between two suspected images and localizes the spliced region on both images. Recent works regard…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yuxuan Tan , Yuanman Li , Limin Zeng , Jiaxiong Ye , Wei wang , Xia Li

Continual learning (CL) - the ability to progressively acquire and integrate new concepts - is essential to intelligent systems to adapt to dynamic environments. However, deep neural networks struggle with catastrophic forgetting (CF) when…

Machine Learning · Computer Science 2025-07-08 Marco Paul E. Apolinario , Sakshi Choudhary , Kaushik Roy

A key requirement for the success of supervised deep learning is a large labeled dataset - a condition that is difficult to meet in medical image analysis. Self-supervised learning (SSL) can help in this regard by providing a strategy to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-02 Krishna Chaitanya , Ertunc Erdil , Neerav Karani , Ender Konukoglu

This paper demonstrates that language models are strong structure-based protein designers. We present LM-Design, a generic approach to reprogramming sequence-based protein language models (pLMs), that have learned massive sequential…

Machine Learning · Computer Science 2023-02-10 Zaixiang Zheng , Yifan Deng , Dongyu Xue , Yi Zhou , Fei YE , Quanquan Gu

Recently, considerable research efforts have been devoted to the design of methods to learn from data overcomplete dictionaries for sparse coding. However, learned dictionaries require the solution of an optimization problem for coding new…

Machine Learning · Computer Science 2010-11-17 Curzio Basso , Matteo Santoro , Alessandro Verri , Silvia Villa

Real-world training data is often noisy; for example, human annotators assign conflicting class labels to the same instances. Partial-label learning (PLL) is a weakly supervised learning paradigm that allows training classifiers in this…

Machine Learning · Computer Science 2025-10-27 Tobias Fuchs , Florian Kalinke

Partial label learning (PLL) aims to solve the problem where each training instance is associated with a set of candidate labels, one of which is the correct label. Most PLL algorithms try to disambiguate the candidate label set, by either…

Machine Learning · Computer Science 2018-05-09 Gengyu Lyu , Songhe Feng , Congyang Lang

In this paper we present a new approach of incorporating kernels into dictionary learning. The kernel K-SVD algorithm (KKSVD), which has been introduced recently, shows an improvement in classification performance, with relation to its…

Computer Vision and Pattern Recognition · Computer Science 2016-05-25 Alona Golts , Michael Elad

Dictionary learning (DL) is commonly used in computational biology to tackle ubiquitous clustering problems due to its conceptual simplicity and relatively low computational complexity. However, DL algorithms produce results that lack…

Genomics · Quantitative Biology 2023-12-19 Vishal Rana , Jianhao Peng , Chao Pan , Hanbaek Lyu , Albert Cheng , Minji Kim , Olgica Milenkovic

To predict a set of diverse and informative proposals with enriched representations, this paper introduces a differentiable Determinantal Point Process (DPP) layer that is able to augment the object detection architectures. Most modern…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Samaneh Azadi , Jiashi Feng , Trevor Darrell

Learning from Label Proportions (LLP) is a weakly supervised problem in which the training data comprise bags, that is, groups of instances, each annotated only with bag-level class label proportions, and the objective is to learn a…

Machine Learning · Computer Science 2026-03-24 Tianhao Ma , Ximing Li , Changchun Li , Renchu Guan

We propose denoising dictionary learning (DDL), a simple yet effective technique as a protection measure against adversarial perturbations. We examined denoising dictionary learning on MNIST and CIFAR10 perturbed under two different…

Machine Learning · Statistics 2018-01-09 John Mitro , Derek Bridge , Steven Prestwich

We introduce Logical Offline Cycle Consistency Optimization (LOCCO), a scalable, semi-supervised method for training a neural semantic parser. Conceptually, LOCCO can be viewed as a form of self-learning where the semantic parser being…

Computation and Language · Computer Science 2023-06-01 Maxwell Crouse , Ramon Astudillo , Tahira Naseem , Subhajit Chaudhury , Pavan Kapanipathi , Salim Roukos , Alexander Gray

The power of sparse signal coding with learned dictionaries has been demonstrated in a variety of applications and fields, from signal processing to statistical inference and machine learning. However, the statistical properties of these…

Information Theory · Computer Science 2010-10-25 Ignacio Ramírez , Guillermo Sapiro

Spatial self-attention layers, in the form of Non-Local blocks, introduce long-range dependencies in Convolutional Neural Networks by computing pairwise similarities among all possible positions. Such pairwise functions underpin the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Francesca Babiloni , Ioannis Marras , Filippos Kokkinos , Jiankang Deng , Grigorios Chrysos , Stefanos Zafeiriou

Structured pruning reduces LLM inference cost by removing low-importance architectural components. This can be viewed as learning a multiplicative gate for each component under an l0 sparsity constraint. Due to the discreteness of the l0…

Machine Learning · Computer Science 2026-05-12 Weiyu Huang , Pengle Zhang , Xiaolu Zhang , Jun Zhou , Jun Zhu , Jianfei Chen

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

Block-wise discrete diffusion offers an attractive balance between parallel generation and causal dependency modeling, making it a promising backbone for vision-language modeling. However, its practical adoption has been limited by high…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Shuang Cheng , Yuhua Jiang , Zineng Zhou , Dawei Liu , Wang Tao , Linfeng Zhang , Biqing Qi , Bowen Zhou