ExSIS: Extended sure independence screening for ultrahigh-dimensional linear models

T Ahmed, WU Bajwa - Signal processing, 2019 - Elsevier
Statistical inference can be computationally prohibitive in ultrahigh-dimensional linear
models. Correlation-based variable screening, in which one leverages marginal correlations …

Fused variable screening for massive imbalanced data

J Xie, M Hao, W Liu, Y Lin - Computational Statistics & Data Analysis, 2020 - Elsevier
Imbalanced data, in which the data exhibit an unequal or highly-skewed distribution
between its classes/categories, are pervasive in many scientific fields, with application range …

[HTML][HTML] Marginal screening for high-dimensional predictors of survival outcomes

TJ Huang, IW McKeague, M Qian - Statistica Sinica, 2019 - ncbi.nlm.nih.gov
This study develops a marginal screening test to detect the presence of significant predictors
for a right-censored time-to-event outcome under a high-dimensional accelerated failure …

Non-marginal feature screening for varying coefficient competing risks model

B Tian, Z Liu, H Wang - Statistics & Probability Letters, 2022 - Elsevier
This article is concerned with a non-marginal feature screening procedure for varying
coefficient competing risks models with ultra-high dimensional covariates. The proposed …

A new joint screening method for right-censored time-to-event data with ultra-high dimensional covariates

Y Liu, X Chen, G Li - Statistical methods in medical research, 2020 - journals.sagepub.com
In an ultra-high dimensional setting with a huge number of covariates, variable screening is
useful for dimension reduction before applying a more refined method for model selection …

On model specification and selection of the Cox proportional hazards model

CY Lin, S Halabi - Statistics in medicine, 2013 - Wiley Online Library
Prognosis plays a pivotal role in patient management and trial design. A useful prognostic
model should correctly identify important risk factors and estimate their effects. In this article …

Communication-Efficient Distributed Estimation and Inference for Cox's Model

P Bayle, J Fan, Z Lou - arXiv preprint arXiv:2302.12111, 2023 - arxiv.org
Motivated by multi-center biomedical studies that cannot share individual data due to privacy
and ownership concerns, we develop communication-efficient iterative distributed …

[HTML][HTML] Variable selection and structure identification for varying coefficient Cox models

T Honda, R Yabe - Journal of Multivariate Analysis, 2017 - Elsevier
We consider varying coefficient Cox models with high-dimensional covariates. We apply the
group Lasso to these models and propose a variable selection procedure. Our procedure …

Projection quantile correlation and its use in high-dimensional grouped variable screening

J Liu, Y Si, Y Niu, R Zhang - Computational Statistics & Data Analysis, 2022 - Elsevier
In this paper, we propose a new measure, called Projection Quantile Correlation (PQC), to
detect quantile dependence between a response and multivariate predictors at a given …

A simple model-free survival conditional feature screening

X Chen, Y Zhang, X Chen, Y Liu - Statistics & Probability Letters, 2019 - Elsevier
We propose a new, simple, model-free conditional screening approach for survival data.
Sure screening and consistency in ranking properties are rigorously established, and …