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Face detection has achieved significant progress in recent years. However, high performance face detection still remains a very challenging problem, especially when there exists many tiny faces. In this paper, we present a single-shot…

计算机视觉与模式识别 · 计算机科学 2019-09-11 Shifeng Zhang , Cheng Chi , Zhen Lei , Stan Z. Li

Dense conditional random fields (CRF) with Gaussian pairwise potentials have emerged as a popular framework for several computer vision applications such as stereo correspondence and semantic segmentation. By modeling long-range…

计算机视觉与模式识别 · 计算机科学 2016-08-23 Alban Desmaison , Rudy Bunel , Pushmeet Kohli , Philip H. S. Torr , M. Pawan Kumar

With the rapid advancement of diffusion-based generative models, Stable Diffusion (SD) has emerged as a state-of-the-art framework for high-fidelity im-age synthesis. However, existing SD models suffer from suboptimal feature aggregation,…

图形学 · 计算机科学 2025-07-21 Zhen-Qi Chen , Yuan-Fu Yang

We present a new additive image factorization technique that treats images to be composed of multiple latent specular components which can be simply estimated recursively by modulating the sparsity during decomposition. Our model-driven…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Saurabh Saini , P J Narayanan

The sparse group lasso is a high-dimensional regression technique that is useful for problems whose predictors have a naturally grouped structure and where sparsity is encouraged at both the group and individual predictor level. In this…

统计方法学 · 统计学 2025-01-10 Xiaoxuan Liang , Aaron Cohen , Anibal Solón Heinsfeld , Franco Pestilli , Daniel J. McDonald

Novel sparse reconstruction algorithms are proposed for beamspace channel estimation in massive multiple-input multiple-output systems. The proposed algorithms minimize a least-squares objective having a nonconvex regularizer. This…

信息论 · 计算机科学 2021-12-02 Pengxia Wu , Julian Cheng

In this paper, we propose a novel method for fast face recognition called L1/2 Regularized Sparse Representation using Hierarchical Feature Selection (HSR). By employing hierarchical feature selection, we can compress the scale and…

计算机视觉与模式识别 · 计算机科学 2016-03-29 Bo Han , Bo He , Tingting Sun , Mengmeng Ma , Amaury Lendasse

Supervised contour detection methods usually require many labeled training images to obtain satisfactory performance. However, a large set of annotated data might be unavailable or extremely labor intensive. In this paper, we investigate…

计算机视觉与模式识别 · 计算机科学 2016-05-18 Zizhao Zhang , Fuyong Xing , Xiaoshuang Shi , Lin Yang

Deepening and widening convolutional neural networks (CNNs) significantly increases the number of trainable weight parameters by adding more convolutional layers and feature maps per layer, respectively. By imposing inter- and intra-group…

计算机视觉与模式识别 · 计算机科学 2019-12-18 Kevin Bui , Fredrick Park , Shuai Zhang , Yingyong Qi , Jack Xin

In this paper, we account for approaches of sparse recovery from large underdetermined linear models with perturbation present in both the measurements and the dictionary matrix. Existing methods have high computation and low efficiency.…

信息论 · 计算机科学 2012-05-02 Xuebing Han , Hao Zhang , Gang Li

We study sparse group Lasso for high-dimensional double sparse linear regression, where the parameter of interest is simultaneously element-wise and group-wise sparse. This problem is an important instance of the simultaneously structured…

统计理论 · 数学 2022-05-10 T. Tony Cai , Anru R. Zhang , Yuchen Zhou

The recovery of high-quality images from images corrupted by lens flare presents a significant challenge in low-level vision. Contemporary deep learning methods frequently entail training a lens flare removing model from scratch. However,…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Tianwen Zhou , Qihao Duan , Zitong Yu

We introduce a novel nonlinear model, Sparse Adaptive Bottleneck Centroid-Encoder (SABCE), for determining the features that discriminate between two or more classes. The algorithm aims to extract discriminatory features in groups while…

机器学习 · 计算机科学 2023-06-12 Tomojit Ghosh , Michael Kirby

This paper considers the problem of signal denoising using a sparse tight-frame analysis prior. The L1 norm has been extensively used as a regularizer to promote sparsity; however, it tends to under-estimate non-zero values of the…

计算机视觉与模式识别 · 计算机科学 2015-09-11 Ankit Parekh , Ivan W. Selesnick

The visibility of real-world images is often limited by both low-light and low-resolution, however, these issues are only addressed in the literature through Low-Light Enhancement (LLE) and Super- Resolution (SR) methods. Admittedly, a…

图像与视频处理 · 电气工程与系统科学 2024-03-01 Ziyu Yue , Jiaxin Gao , Sihan Xie , Yang Liu , Zhixun Su

Reconstructing the high-fidelity surface from multi-view images, especially sparse images, is a critical and practical task that has attracted widespread attention in recent years. However, existing methods are impeded by the memory…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Rui Peng , Shihe Shen , Kaiqiang Xiong , Huachen Gao , Jianbo Jiao , Xiaodong Gu , Ronggang Wang

We propose SLoPe, a Double-Pruned Sparse Plus Lazy Low-rank Adapter Pretraining method for LLMs that improves the accuracy of sparse LLMs while accelerating their pretraining and inference and reducing their memory footprint. Sparse…

机器学习 · 计算机科学 2025-01-28 Mohammad Mozaffari , Amir Yazdanbakhsh , Zhao Zhang , Maryam Mehri Dehnavi

In statistical machine learning, kernel methods allow to consider infinite dimensional feature spaces with a computational cost that only depends on the number of observations. This is usually done by solving an optimization problem…

最优化与控制 · 数学 2019-01-17 Guillaume Garrigos , Lorenzo Rosasco , Silvia Villa

Continual Learning (CL) aims to enable models to sequentially learn multiple tasks without forgetting previous knowledge. Recent studies have shown that optimizing towards flatter loss minima can improve model generalization. However,…

机器学习 · 计算机科学 2026-01-13 Yanan Chen , Tieliang Gong , Yunjiao Zhang , Wen Wen

Taking into account high-order interactions among covariates is valuable in many practical regression problems. This is, however, computationally challenging task because the number of high-order interaction features to be considered would…

机器学习 · 统计学 2015-06-29 Kazuya Nakagawa , Shinya Suzumura , Masayuki Karasuyama , Koji Tsuda , Ichiro Takeuchi