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Graph kernels are kernel methods measuring graph similarity and serve as a standard tool for graph classification. However, the use of kernel methods for node classification, which is a related problem to graph representation learning, is…

机器学习 · 计算机科学 2019-10-08 Yu Tian , Long Zhao , Xi Peng , Dimitris N. Metaxas

In biomedical studies, we are often interested in the association between different types of covariates and the times to disease events. Because the relationship between the covariates and event times is often complex, standard survival…

统计方法学 · 统计学 2024-01-19 Hoi Min Ng , Kin Yau Wong

In this article, we introduce a kernel-based consensual aggregation method for regression problems. We aim to flexibly combine individual regression estimators $r_1, r_2, \ldots, r_M$ using a weighted average where the weights are defined…

统计方法学 · 统计学 2021-04-29 Sothea Has

In this article, we introduce a kernel-based consensual aggregation method for regression problems. We aim to exibly combine individual regression estimators $r_1, \ldots, r_M$ using a weighted average where the weights are dened based on…

统计理论 · 数学 2023-10-03 Sothea Has

In this paper, we propose a variable selection method for general nonparametric kernel-based estimation. The proposed method consists of two-stage estimation: (1) construct a consistent estimator of the target function, (2) approximate the…

机器学习 · 统计学 2018-12-05 Kota Matsui , Wataru Kumagai , Kenta Kanamori , Mitsuaki Nishikimi , Takafumi Kanamori

Canonical correlation analysis is a technique to extract common features from a pair of multivariate data. In complex situations, however, it does not extract useful features because of its linearity. On the other hand, kernel method used…

机器学习 · 计算机科学 2007-05-23 Shotaro Akaho

Averaging provides an alternative to bandwidth selection for density kernel estimation. We propose a procedure to combine linearly several kernel estimators of a density obtained from different, possibly data-driven, bandwidths. The method…

统计理论 · 数学 2019-11-05 O. Chernova , F. Lavancier , P. Rochet

In genome-wide interaction studies, to detect gene-gene interactions, most methods are divided into two folds: single nucleotide polymorphisms (SNP) based and gene-based methods. Basically, the methods based on the gene are more effective…

机器学习 · 统计学 2016-06-02 Md ashad Alam , Osamu Komori , Yu-Ping Wang

Mantel's test (MT) for association is conducted by testing the linear relationship of similarity of all pairs of subjects between two observational domains. Motivated by applications to neuroimaging and genetics data, and following the…

统计方法学 · 统计学 2018-12-18 Dustin Pluta , Hernando Ombao , Chuansheng Chen , Gui Xue , Robert Moyzis , Zhaoxia Yu

Risk prediction capitalizing on emerging human genome findings holds great promise for new prediction and prevention strategies. While the large amounts of genetic data generated from high-throughput technologies offer us a unique…

统计方法学 · 统计学 2021-01-29 Xiaoxi Shen , Xiaoran Tong , Qing Lu

Although empirical studies have confirmed the effectiveness of spectrum-based fault localization (SBFL) techniques, their performance may be degraded due to presence of some undesired circumstances such as the existence of coincidental…

软件工程 · 计算机科学 2018-07-06 Farid Feyzi , Saeed Parsa

It has been shown that a random-effects framework can be used to test the association between a gene's expression level and the number of DNA copies of a set of genes. This gene-set modelling framework was later applied to find associations…

统计方法学 · 统计学 2015-10-09 Renée Menezes , Leila Mohammadi , Jelle Goeman , Judith Boer

Change-point detection in dynamic networks has received much attention due to its broad applications in social networks and biological systems. Kernel-based methods have shown strong potential for this problem. However, their performance…

统计方法学 · 统计学 2026-05-15 Mingxuan Sun , Hao Chen

In this abstract paper, we introduce a new kernel learning method by a nonparametric density estimator. The estimator consists of a group of k-centroids clusterings. Each clustering randomly selects data points with randomly selected…

机器学习 · 计算机科学 2017-08-02 Xiao-Lei Zhang

In genetic association studies, rare variants with extremely small allele frequency play a crucial role in complex traits, and the set-based testing methods that jointly assess the effects of groups of single nucleotide polymorphisms (SNPs)…

统计方法学 · 统计学 2020-03-13 Shonosuke Sugasawa , Hisashi Noma

The R package CVEK introduces a suite of flexible machine learning models and robust hypothesis tests for learning the joint nonlinear effects of multiple covariates in limited samples. It implements the Cross-validated Ensemble of Kernels…

统计计算 · 统计学 2020-12-22 Wenying Deng , Jeremiah Zhe Liu , Erin Lake , Brent A. Coull

We consider the variable selection problem for two-sample tests, aiming to select the most informative variables to determine whether two collections of samples follow the same distribution. To address this, we propose a novel framework…

机器学习 · 统计学 2024-12-23 Jie Wang , Santanu S. Dey , Yao Xie

Attributed network data is becoming increasingly common across fields, as we are often equipped with information about nodes in addition to their pairwise connectivity patterns. This extra information can manifest as a classification, or as…

社会与信息网络 · 计算机科学 2018-05-22 Natalie Stanley , Marc Niethammer , Peter J. Mucha

We develop scalable randomized kernel methods for jointly associating data from multiple sources and simultaneously predicting an outcome or classifying a unit into one of two or more classes. The proposed methods model nonlinear…

统计方法学 · 统计学 2023-04-11 Sandra E. Safo , Han Lu

Multiple kernel methods based on k-means aims to integrate a group of kernels to improve the performance of kernel k-means clustering. However, we observe that most existing multiple kernel k-means methods exploit the nonlinear relationship…

机器学习 · 计算机科学 2020-10-01 Liang Du , Haiying Zhang , Xin Ren , Xiaolin Lv