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Subsampled Randomized Hadamard Transform (SRHT), a popular random projection method that can efficiently project a $d$-dimensional data into $r$-dimensional space ($r \ll d$) in $O(dlog(d))$ time, has been widely used to address the…

机器学习 · 计算机科学 2020-10-07 Zijian Lei , Liang Lan

The singular value decomposition (SVD) is a crucial tool in machine learning and statistical data analysis. However, it is highly susceptible to outliers in the data matrix. Existing robust SVD algorithms often sacrifice speed for…

机器学习 · 统计学 2024-02-16 Sangil Han , Kyoowon Kim , Sungkyu Jung

Image super-resolution (SR) techniques have been developing rapidly, benefiting from the invention of deep networks and its successive breakthroughs. However, it is acknowledged that deep learning and deep neural networks are difficult to…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Jinjin Gu , Chao Dong

The randomized singular value decomposition (SVD) is a popular and effective algorithm for computing a near-best rank $k$ approximation of a matrix $A$ using matrix-vector products with standard Gaussian vectors. Here, we generalize the…

数值分析 · 数学 2022-01-24 Nicolas Boullé , Alex Townsend

This paper introduces a fast and efficient network architecture, NeXtVLAD, to aggregate frame-level features into a compact feature vector for large-scale video classification. Briefly speaking, the basic idea is to decompose a…

计算机视觉与模式识别 · 计算机科学 2018-11-14 Rongcheng Lin , Jing Xiao , Jianping Fan

Visual Place Recognition (VPR) is a crucial component of 6-DoF localization, visual SLAM and structure-from-motion pipelines, tasked to generate an initial list of place match hypotheses by matching global place descriptors. However,…

计算机视觉与模式识别 · 计算机科学 2022-02-21 Ahmad Khaliq , Michael Milford , Sourav Garg

This paper presents a histogram based reversible data hiding (RDH) scheme, which divides image pixels into different cell frequency bands to sort them for data embedding. Data hiding is more efficient in lower cell frequency bands because…

图像与视频处理 · 电气工程与系统科学 2020-10-19 Ammar Mohammadi , Mansour Nakhkash

Nearest neighbors search is a fundamental problem in various research fields like machine learning, data mining and pattern recognition. Recently, hashing-based approaches, e.g., Locality Sensitive Hashing (LSH), are proved to be effective…

信息检索 · 计算机科学 2012-05-15 Yue Lin , Deng Cai , Cheng Li

Low-rank approximation methods such as singular value decomposition (SVD) and its variants (e.g., Fisher-weighted SVD, Activation SVD) have recently emerged as effective tools for neural network compression. In this setting, decomposition…

机器学习 · 计算机科学 2025-12-02 Haoran Qin , Shansita Sharma , Ali Abbasi , Chayne Thrash , Soheil Kolouri

Face image retrieval, which searches for images of the same identity from the query input face image, is drawing more attention as the size of the image database increases rapidly. In order to conduct fast and accurate retrieval, a compact…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Young Kyun Jang , Nam Ik Cho

Kernel-based nonlinear dictionary learning methods operate in a feature space obtained by an implicit feature map, and they are not independent of computationally expensive operations like Singular Value Decomposition (SVD). This paper…

计算机视觉与模式识别 · 计算机科学 2024-04-25 G. Madhuri , Atul Negi

We consider classification tasks in the regime of scarce labeled training data in high dimensional feature space, where specific expert knowledge is also available. We propose a new hybrid optimization algorithm that solves the elastic-net…

机器学习 · 统计学 2014-11-18 Zhiwei Qin , Xiaocheng Tang , Ioannis Akrotirianakis , Amit Chakraborty

Memory and network bandwidth are decisive bottlenecks when handling high-resolution multidimensional data sets in visualization applications, and they increasingly demand suitable data compression strategies. We introduce a novel lossy…

图形学 · 计算机科学 2019-03-12 Rafael Ballester-Ripoll , Peter Lindstrom , Renato Pajarola

Robust efficient loop closure detection is essential for large-scale real-time SLAM. In this paper, we propose a novel unsupervised deep neural network architecture of a feature embedding for visual loop closure that is both reliable and…

机器人学 · 计算机科学 2018-05-28 Nate Merrill , Guoquan Huang

The development of data innovation as of late and the expanded limit, has permitted the acquaintance of artificial vision connected with SLAM, offering ascend to what is known as Visual SLAM. The objective of this paper is to build up a…

计算机视觉与模式识别 · 计算机科学 2018-10-19 V. I Mebin Jose , D. J Binoj

One of the main open challenges in visual odometry (VO) is the robustness to difficult illumination conditions or high dynamic range (HDR) environments. The main difficulties in these situations come from both the limitations of the sensors…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Ruben Gomez-Ojeda , Zichao Zhang , Javier Gonzalez-Jimenez , Davide Scaramuzza

We propose an object detection method that improves the accuracy of the conventional SSD (Single Shot Multibox Detector), which is one of the top object detection algorithms in both aspects of accuracy and speed. The performance of a deep…

计算机视觉与模式识别 · 计算机科学 2017-11-07 Jisoo Jeong , Hyojin Park , Nojun Kwak

The ability of fast similarity search at large scale is of great importance to many Information Retrieval (IR) applications. A promising way to accelerate similarity search is semantic hashing which designs compact binary codes for a large…

信息检索 · 计算机科学 2010-04-30 Dell Zhang , Jun Wang , Deng Cai , Jinsong Lu

In this paper we propose novel methods for compression and recovery of multilinear data under limited sampling. We exploit the recently proposed tensor- Singular Value Decomposition (t-SVD)[1], which is a group theoretic framework for…

信息论 · 计算机科学 2013-11-01 Zemin Zhang , Gregory Ely , Shuchin Aeron , Ning Hao , Misha Kilmer

Similarity-based image hashing represents crucial technique for visual data storage reduction and expedited image search. Conventional hashing schemes typically feed hand-crafted features into hash functions, which separates the procedures…

计算机视觉与模式识别 · 计算机科学 2016-08-15 Yadong Mu , Zhu Liu