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Variable screening is a fast dimension reduction technique for assisting high dimensional feature selection. As a preselection method, it selects a moderate size subset of candidate variables for further refining via feature selection to…

统计理论 · 数学 2015-06-09 Xiangyu Wang , Chenlei Leng , David B. Dunson

Typical retrieval systems have three requirements: a) Accurate retrieval i.e., the method should have high precision, b) Diverse retrieval, i.e., the obtained set of points should be diverse, c) Retrieval time should be small. However, most…

信息检索 · 计算机科学 2020-08-25 Vidyadhar Rao , Prateek Jain , C. V Jawahar

We propose Pathfinder, a variational method for approximately sampling from differentiable log densities. Starting from a random initialization, Pathfinder locates normal approximations to the target density along a quasi-Newton…

机器学习 · 统计学 2022-05-17 Lu Zhang , Bob Carpenter , Andrew Gelman , Aki Vehtari

For many practical problems, the regression models follow the strong heredity property (also known as the marginality), which means they include parent main effects when a second-order effect is present. Existing methods rely mostly on…

统计方法学 · 统计学 2020-07-28 Kedong Chen , William Li , Sijian Wang

We present a data mining approach for reducing the search space of local search algorithms in a class of binary integer programs including the set covering and partitioning problems. The quality of locally optimal solutions typically…

数据结构与算法 · 计算机科学 2017-05-15 Shunji Umetani

Two popular variable screening methods under the ultra-high dimensional setting with the desirable sure screening property are the sure independence screening (SIS) and the forward regression (FR). Both are classical variable screening…

统计方法学 · 统计学 2015-11-05 Ming-Yen Cheng , Sanying Feng , Gaorong Li , Heng Lian

Gene-regulatory enhancers have been identified by many lines of evidence, including evolutionary conservation, regulatory protein binding, chromatin modifications, and DNA sequence motifs. To integrate these different approaches, we…

基因组学 · 定量生物学 2015-06-17 Genevieve D. Erwin , Rebecca M. Truty , Dennis Kostka , Katherine S. Pollard , John A. Capra

Deep learning has revolutionized many industries by enabling models to automatically learn complex patterns from raw data, reducing dependence on manual feature engineering. However, deep learning algorithms are sensitive to input data, and…

机器学习 · 计算机科学 2025-07-21 Mert Sehri , Zehui Hua , Francisco de Assis Boldt , Patrick Dumond

We propose a novel measure for template matching named Deformable Diversity Similarity -- based on the diversity of feature matches between a target image window and the template. We rely on both local appearance and geometric information…

计算机视觉与模式识别 · 计算机科学 2017-04-19 Itamar Talmi , Roey Mechrez , Lihi Zelnik-Manor

It is increasingly common clinically for cancer specimens to be examined using techniques that identify somatic mutations. In principle these mutational profiles can be used to diagnose the tissue of origin, a critical task for the 3-5% of…

统计方法学 · 统计学 2020-07-14 Saptarshi Chakraborty , Colin B. Begg , Ronglai Shen

We study a posterior sampling approach to efficient exploration in constrained reinforcement learning. Alternatively to existing algorithms, we propose two simple algorithms that are more efficient statistically, simpler to implement and…

机器学习 · 计算机科学 2022-09-09 Danil Provodin , Pratik Gajane , Mykola Pechenizkiy , Maurits Kaptein

We propose a novel diverse feature selection method based on determinantal point processes (DPPs). Our model enables one to flexibly define diversity based on the covariance of features (similar to orthogonal matching pursuit) or…

MotifbreakR is a software tool that scans genetic variants against position weight matrices of transcription factors (TF) to determine the potential for the disruption of TF binding at the site of the variant. It leverages the Bioconductor…

基因组学 · 定量生物学 2024-07-08 Simon G. Coetzee , Dennis J. Hazelett

Change detection, as an important and widely applied technique in the field of remote sensing, aims to analyze changes in surface areas over time and has broad applications in areas such as environmental monitoring, urban development, and…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Zihan Yu , Tianxiao Li , Yuxin Zhu , Rongze Pan

Feature selection aims to identify the most pattern-discriminative feature subset. In prior literature, filter (e.g., backward elimination) and embedded (e.g., Lasso) methods have hyperparameters (e.g., top-K, score thresholding) and tie to…

机器学习 · 计算机科学 2024-03-07 Wangyang Ying , Dongjie Wang , Haifeng Chen , Yanjie Fu

Feature selection has attracted significant attention in data mining and machine learning in the past decades. Many existing feature selection methods eliminate redundancy by measuring pairwise inter-correlation of features, whereas the…

机器学习 · 计算机科学 2015-02-03 Zhijun Chen , Chaozhong Wu , Yishi Zhang , Zhen Huang , Bin Ran , Ming Zhong , Nengchao Lyu

We present an efficient subpixel refinement method usinga learning-based approach called Linear Predictors. Two key ideas are shown in this paper. Firstly, we present a novel technique, called Symbolic Linear Predictors, which makes the…

计算机视觉与模式识别 · 计算机科学 2018-05-01 Vincent Lui , Jonathon Geeves , Winston Yii , Tom Drummond

In this era of big data, feature selection techniques, which have long been proven to simplify the model, makes the model more comprehensible, speed up the process of learning, have become more and more important. Among many developed…

机器学习 · 统计学 2019-11-20 Thu Nguyen

Branch-specific substitution models are popular for detecting evolutionary change-points, such as shifts in selective pressure. However, applying such models typically requires prior knowledge of change-point locations on the phylogeny or…

种群与进化 · 定量生物学 2026-05-06 Xiang Ji , Benjamin Redelings , Shuo Su , Hongcun Bao , Wu-Min Deng , Samuel L. Hong , Guy Baele , Philippe Lemey , Marc A. Suchard

The wide and rapid adoption of deep learning by practitioners brought unintended consequences in many situations such as in the infamous case of Google Photos' racist image recognition algorithm; thus, necessitated the utilization of the…

机器学习 · 计算机科学 2019-05-24 Mehmet Yigit Yildirim , Mert Ozer , Hasan Davulcu
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