ExSIS: Extended sure independence screening for ultrahigh-dimensional linear models
Statistical inference can be computationally prohibitive in ultrahigh-dimensional linear
models. Correlation-based variable screening, in which one leverages marginal correlations …
models. Correlation-based variable screening, in which one leverages marginal correlations …
Fused variable screening for massive imbalanced data
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 …
between its classes/categories, are pervasive in many scientific fields, with application range …
[HTML][HTML] Marginal screening for high-dimensional predictors of survival outcomes
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
Sure screening and consistency in ranking properties are rigorously established, and …