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相关论文: ZIP: Scalable Crowd Counting via Zero-Inflated Poi…

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Crowd counting is a challenging task due to the heavy occlusions, scales, and density variations. Existing methods handle these challenges effectively while ignoring low-resolution (LR) circumstances. The LR circumstances weaken the…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Jiahao Xie , Wei Xu , Dingkang Liang , Zhanyu Ma , Kongming Liang , Weidong Liu , Rui Wang , Ling Jin

Crowd counting in still images is a challenging problem in practice due to huge crowd-density variations, large perspective changes, severe occlusion, and variable lighting conditions. The state-of-the-art patch rescaling module (PRM) based…

计算机视觉与模式识别 · 计算机科学 2020-10-06 Usman Sajid , Wenchi Ma , Guanghui Wang

This short study presents an opportunistic approach to a (more) reliable validation method for prediction uncertainty average calibration. Considering that variance-based calibration metrics (ZMS, NLL, RCE...) are quite sensitive to the…

机器学习 · 统计学 2024-08-27 Pascal Pernot

Given full or partial information about a collection of points that lie close to a union of several subspaces, subspace clustering refers to the process of clustering the points according to their subspace and identifying the subspaces. One…

机器学习 · 统计学 2018-01-16 Zachary Charles , Amin Jalali , Rebecca Willett

Sparse tiling is a technique to fuse loops that access common data, thus increasing data locality. Unlike traditional loop fusion or blocking, the loops may have different iteration spaces and access shared datasets through indirect memory…

计算工程、金融与科学 · 计算机科学 2019-06-20 Fabio Luporini , Michael Lange , Christian T. Jacobs , Gerard J. Gorman , J. Ramanujam , Paul H. J. Kelly

Accurately locating each head's position in the crowd scenes is a crucial task in the field of crowd analysis. However, traditional density-based methods only predict coarse prediction, and segmentation/detection-based methods cannot handle…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Junyu Gao , Tao Han , Qi Wang , Yuan Yuan , Xuelong Li

The main object of this article is to present an extension of the zero-inflated Poisson-Lindley distribution, called of zero-modified Poisson-Lindley. The additional parameter $\pi$ of the zero-modified Poisson-Lindley has a natural…

统计方法学 · 统计学 2018-11-28 Danillo Xavier , Manoel Santos-Neto , Marcelo Bourguignon , Vera Tomazella

Crowd counting has been widely studied by computer vision community in recent years. Due to the large scale variation, it remains to be a challenging task. Previous methods adopt either multi-column CNN or single-column CNN with multiple…

计算机视觉与模式识别 · 计算机科学 2019-06-25 Feng Dai , Hao Liu , Yike Ma , Juan Cao , Qiang Zhao , Yongdong Zhang

We consider the compressed sensing problem, where the object $x_0 \in \bR^N$ is to be recovered from incomplete measurements $y = Ax_0 + z$; here the sensing matrix $A$ is an $n \times N$ random matrix with iid Gaussian entries and $n < N$.…

信息论 · 计算机科学 2011-03-25 David Donoho , Iain Johnstone , Arian Maleki , Andrea Montanari

We study statistical and computational limits of clustering when the means of the centres are sparse and their dimension is possibly much larger than the sample size. Our theoretical analysis focuses on the model $X_i = z_i \theta +…

统计理论 · 数学 2021-03-23 Matthias Löffler , Alexander S. Wein , Afonso S. Bandeira

This research deals with the estimation and imputation of missing data in longitudinal models with a Poisson response variable inflated with zeros. A methodology is proposed that is based on the use of maximum likelihood, assuming that data…

统计方法学 · 统计学 2024-09-18 D. S. Martinez-Lobo , O. O. Melo , N. A. Cruz

Linear Predictive Clustering (LPC) partitions samples based on shared linear relationships between feature and target variables, with numerous applications including marketing, medicine, and education. Greedy optimization methods, commonly…

机器学习 · 计算机科学 2026-04-08 Jiazhou Liang , Hassan Khurram , Scott Sanner

A new sparse signal recovery algorithm for multiple-measurement vectors (MMV) problem is proposed in this paper. The sparse representation is iteratively drawn based on the idea of zero-point attracting projection (ZAP). In each iteration,…

信息论 · 计算机科学 2015-03-20 Yang You , Laming Chen , Yuantao Gu , Wei Feng , Hui Dai

We consider generalized linear models in regimes where the number of nonzero components of the signal and accessible data points are sublinear with respect to the size of the signal. We prove a variational formula for the asymptotic mutual…

信息论 · 计算机科学 2020-10-29 Clément Luneau , Jean Barbier , Nicolas Macris

Data credibility is a crucial issue in mobile crowd sensing (MCS) and, more generally, people-centric Internet of Things (IoT). Prior work takes approaches such as incentive mechanism design and data mining to address this issue, while…

人机交互 · 计算机科学 2017-09-13 Tie Luo , Leonit Zeynalvand

A recursive algorithm named Zero-point Attracting Projection (ZAP) is proposed recently for sparse signal reconstruction. Compared with the reference algorithms, ZAP demonstrates rather good performance in recovery precision and robustness.…

信息论 · 计算机科学 2015-06-04 Xiaohan Wang , Yuantao Gu , Laming Chen

Existing caching strategies, in the storage domain, though well suited to exploit short range spatio-temporal patterns, are unable to leverage long-range motifs for improving hitrates. Motivated by this, we investigate novel Bayesian…

操作系统 · 计算机科学 2014-10-15 Lavanya Sita Tekumalla , Chiranjib Bhattacharyya

We consider the problem of learning a sparse graph underlying an undirected Gaussian graphical model, a key problem in statistical machine learning. Given $n$ samples from a multivariate Gaussian distribution with $p$ variables, the goal is…

机器学习 · 计算机科学 2026-04-07 Kayhan Behdin , Wenyu Chen , Rahul Mazumder

Crowd localization is to predict each instance head position in crowd scenarios. Since the distance of instances being to the camera are variant, there exists tremendous gaps among scales of instances within an image, which is called the…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Juncheng Wang , Junyu Gao , Yuan Yuan , Qi Wang

Zero-Knowledge Proofs (ZKPs) are an emergent paradigm in verifiable computing. In the context of applications like cloud computing, ZKPs can be used by a client (called the verifier) to verify the service provider (called the prover) is in…

硬件体系结构 · 计算机科学 2024-08-13 Alhad Daftardar , Brandon Reagen , Siddharth Garg