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We propose a method for variable selection in multiple regression with random predictors. This method is based on a criterion that permits to reduce the variable selection problem to a problem of estimating suitable permutation and…

统计理论 · 数学 2015-06-29 Alban Mbina Mbina , Guy Martial Nkiet , Assi Nguessan

We propose a method for visualizing uncertain set systems, which differs from previous set visualization approaches that are based on certainty (an element either belongs to a set or not). Our method is inspired by storyline visualizations…

Domain generalization (DG) aims to learn a model on several source domains, hoping that the model can generalize well to unseen target domains. The distribution shift between domains contains the covariate shift and conditional shift, both…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Jianxin Lin , Yongqiang Tang , Junping Wang , Wensheng Zhang

Model deficiency that results from incomplete training data is a form of structural blindness that leads to costly errors, oftentimes with high confidence. During the training of classification tasks, underrepresented class-conditional…

机器学习 · 计算机科学 2021-02-09 Bruno Abrahao , Zheng Wang , Haider Ahmed , Yuchen Zhu

Compared to supervised variable selection, the research on unsupervised variable selection is far behind. A forward partial-variable clustering full-variable loss (FPCFL) method is proposed for the corresponding challenges. An advantage is…

统计方法学 · 统计学 2024-12-02 Tonglin Zhang , Huyunting Huang

Traditional variable selection methods could fail to be sign consistent when irrepresentable conditions are violated. This is especially critical in high-dimensional settings when the number of predictors exceeds the sample size. In this…

统计方法学 · 统计学 2022-04-26 Fei Xue , Annie Qu

Increased application of multivariate data in many scientific areas has considerably raised the complexity of analysis and interpretation. Although quite a few approaches have been put forward to address this issue, there is still a gap…

统计计算 · 统计学 2018-10-30 Elyas Heidari , Vahid Balazadeh-Meresht , Ali Sharifi-Zarchi

Evidence-based deep learning represents a burgeoning paradigm for uncertainty estimation, offering reliable predictions with negligible extra computational overheads. Existing methods usually adopt Kullback-Leibler divergence to estimate…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Yan Zhang , Ming Li , Chun Li , Zhaoxia Liu , Ye Zhang , Fei Richard Yu

In this paper, we introduce VoteCut, an innovative method for unsupervised object discovery that leverages feature representations from multiple self-supervised models. VoteCut employs normalized-cut based graph partitioning, clustering and…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Shahaf Arica , Or Rubin , Sapir Gershov , Shlomi Laufer

In computer vision, an entity such as an image or video is often represented as a set of instance vectors, which can be SIFT, motion, or deep learning feature vectors extracted from different parts of that entity. Thus, it is essential to…

计算机视觉与模式识别 · 计算机科学 2016-04-28 Jianxin Wu , Bin-Bin Gao , Guoqing Liu

Robust estimators for linear regression require non-convex objective functions to shield against adverse affects of outliers. This non-convexity brings challenges, particularly when combined with penalization in high-dimensional settings.…

统计计算 · 统计学 2025-08-08 David Kepplinger , Siqi Wei

Variational dimensionality reduction methods are widely used for their accuracy, generative capabilities, and robustness. We introduce a unifying framework that generalizes both such as traditional and state-of-the-art methods. The…

机器学习 · 计算机科学 2025-09-04 Eslam Abdelaleem , Ilya Nemenman , K. Michael Martini

The Lasso is a prominent algorithm for variable selection. However, its instability in the presence of correlated variables in the high-dimensional setting is well-documented. Although previous research has attempted to address this issue…

统计方法学 · 统计学 2025-05-28 Mahdi Nouraie , Connor Smith , Samuel Muller

Convolutional neural networks have shown to achieve superior performance on image segmentation tasks. However, convolutional neural networks, operating as black-box systems, generally do not provide a reliable measure about the confidence…

计算机视觉与模式识别 · 计算机科学 2020-07-20 Alexander Treiss , Jannis Walk , Niklas Kühl

Modifying von Neumann's alternating projections algorithm, we obtain an alternating method for solving the recently introduced Common Solutions to Variational Inequalities Problem (CSVIP). For simplicity, we mainly confine our attention to…

最优化与控制 · 数学 2012-02-06 Yair Censor , Aviv Gibali , Simeon Reich

As data sets continue to grow in size and complexity, effective and efficient techniques are needed to target important features in the variable space. Many of the variable selection techniques that are commonly used alongside clustering…

统计计算 · 统计学 2013-03-22 Jeffrey L. Andrews , Paul D. McNicholas

In nuclear engineering studies, uncertainty and sensitivity analyses of simulation computer codes can be faced to the complexity of the input and/or the output variables. If these variables represent a transient or a spatial phenomenon, the…

应用统计 · 统计学 2023-12-05 Anne-Laure Popelin , Bertrand Iooss

It has become critical for deep learning algorithms to quantify their output uncertainties to satisfy reliability constraints and provide accurate results. Uncertainty estimation for regression has received less attention than…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Xuanlong Yu , Gianni Franchi , Emanuel Aldea

Causal inference with observational studies often suffers from unmeasured confounding, yielding biased estimators based on the unconfoundedness assumption. Sensitivity analysis assesses how the causal conclusions change with respect to…

统计方法学 · 统计学 2024-04-01 Sizhu Lu , Peng Ding

In this paper, we consider a Bayesian bi-level variable selection problem in high-dimensional regressions. In many practical situations, it is natural to assign group membership to each predictor. Examples include that genetic variants can…

应用统计 · 统计学 2018-03-29 Mingxuan Cai , Mingwei Dai , Jingsi Ming , Heng Peng , Jin Liu , Can Yang