Works Published in 2021
Displaying works 181 - 191 of 191 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2021 journal article
Semiparametric estimation for proportional hazards mixture cure model allowing non-curable competing risk
JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 211, 171–189.
author keywords: PH mixture cure model; Competing risks; EM algorithm; Semiparametric estimation; Logistic regression
TL;DR:
A semiparametric estimation method is developed via an EM algorithm, the asymptotic properties of parametric estimators are provided and its performance is demonstrated through comprehensive simulation studies.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: November 2, 2020
2021 journal article
Increasing browse and social complexity can improve zoo elephant welfare
ZOO BIOLOGY, 40(1), 9–19.
author keywords: behavior; diet; ex situ; Loxodonta africana; management; social
MeSH headings : Animal Feed / analysis; Animal Husbandry / methods; Animal Welfare; Animals; Animals, Zoo / physiology; Appetitive Behavior; Behavior, Animal; Diet / veterinary; Elephants / physiology; Female; Male; Social Behavior
TL;DR:
It is found that increasing browse can improve opportunities for foraging throughout the day but may not be sufficient to reduce repetitive behaviors, and increasing group size and integration of bulls with cows can lead to increased social interaction in African elephants.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land
(Web of Science)
Source: Web Of Science
Added: November 2, 2020
2021 journal article
Receiver operating characteristic curves and confidence bands for support vector machines
BIOMETRICS, 77(4), 1422–1430.
author keywords: classification; diagnostic medicine; machine learning; outcome weighted learning
MeSH headings : Breast Neoplasms / diagnosis; Computer Simulation; Female; Humans; Probability; ROC Curve; Support Vector Machine
TL;DR:
A method for constructing confidence bands for the SVM ROC curve is proposed and the theoretical justification is provided by showing that the risk function of the estimated decision rule is uniformly consistent across the weight parameter.
(via Semantic Scholar)
arxiv.org (repository)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Web Of Science
Added: September 28, 2020
2021 journal article
A Distributed and Integrated Method of Moments for High-Dimensional Correlated Data Analysis
Journal of the American Statistical Association, 116(534), 805–818.
author keywords: Composite likelihood; Divide-and-conquer; Generalized method of moments; Parallel computing; Scalable computing
TL;DR:
A divide-and-conquer procedure implemented in a fully distributed and parallelized computational scheme for statistical estimation and inference of regression parameters is developed, and iron deficiency is significantly associated with two auditory recognition memory related potentials in the left parietal-occipital region of the brain.
(via Semantic Scholar)
Source: ORCID
Added: September 18, 2020
2021 journal article
Bayesian Test of Normality Versus a Dirichlet Process Mixture Alternative
SANKHYA-SERIES B-APPLIED AND INTERDISCIPLINARY STATISTICS, 83(1), 66–96.
author keywords: Bayes factor; embedding; goodness-of-fit; importance sampling; noninformative prior; predictive matching
TL;DR:
Simulations indicate the proposed Bayesian test of normality for univariate or multivariate data against alternative nonparametric models characterized by Dirichlet process mixture distributions can detect non-normality without favoring the non parametric alternative when normality holds.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 24, 2020
2021 journal article
Statistical Inference for Online Decision Making: In a Contextual Bandit Setting
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 116(533), 240–255.
author keywords: Epsilon-greedy; Inverse propensity weighted estimator; Model misspecification; Online decision making; Statistical inference
TL;DR:
Using the martingale central limit theorem, it is shown that the online ordinary least squares estimator of model parameters is asymptotically normal and the in-sample inverse propensity weighted value estimator is asylptotic normal.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Web Of Science
Added: July 27, 2020
2021 journal article
Sparse Single Index Models for Multivariate Responses
Journal of Computational and Graphical Statistics, 30(1), 115–124.
author keywords: Alternating direction method of multipliers; High dimension; Multivariate response; Single index model; Sparsity
TL;DR:
A sparse multivariate single index model is proposed, where responses and predictors are linked by unspecified smooth functions and multiple matrix level penalties are employed to select predictors and induce low-rank structures across responses.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: ORCID
Added: July 1, 2020
2021 journal article
Model Selection With Mixed Variables on the Lasso Path
SANKHYA-SERIES B-APPLIED AND INTERDISCIPLINARY STATISTICS, 83(1), 170–184.
author keywords: Jayanta K; Ghosh; Large p small n; Penalized regression; Variable selection; Primary; Secondary
TL;DR:
A new variable selection procedure is developed to control over-selection of the noise variables ranking after the last relevant variable, and, at the same time, retain a high proportion of relevant variables ranking before the first noise variable.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: May 18, 2020
2021 journal article
Sequential Optimization in Locally Important Dimensions
TECHNOMETRICS, 63(2), 236–248.
author keywords: Augmented expected improvement; Bayesian analysis; Computer experiments; Gaussian process; Local importance; Sequential design
TL;DR:
A sequential design algorithm called sequential optimization in locally important dimensions (SOLID) is developed that incorporates global and local variable selection to optimize a continuous, differentiable function.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: March 16, 2020
2021 journal article
Statistical Inference for High-Dimensional Models via Recursive Online-Score Estimation
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 116(535), 1307–1318.
author keywords: Confidence interval; Generalized linear models; Online estimation; Ultrahigh dimensions
TL;DR:
A new estimation and valid inference method for single or low-dimensional regression coefficients in high-dimensional generalized linear models and it is proved the proposed CI is asymptotically narrower than the CIs constructed based on the desparsified Lasso estimator and the decorrelated score statistic.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: February 10, 2020
2021 journal article
A Survey of Nonparametric Mixing Density Estimation via the Predictive Recursion Algorithm
SANKHYA-SERIES B-APPLIED AND INTERDISCIPLINARY STATISTICS, 83(1), 97–121.
author keywords: Empirical Bayes; high-dimensional inference; Jayanta K; Ghosh; mixture model; recursive estimation
TL;DR:
This paper surveys the literature on a fast, recursive estimator based on the predictive recursion algorithm, summarizes the available asymptotic convergence theory, describes an important semiparametric extension, and highlights two interesting applications.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: November 11, 2019
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