Chaowen Zheng

Works (5)

Updated: July 5th, 2023 15:30

2022 journal article

An O(N) algorithm for computing expectation of N-dimensional truncated multi-variate normal distribution II: computing moments and sparse grid acceleration

ADVANCES IN COMPUTATIONAL MATHEMATICS, 48(6).

By: C. Zheng n, Z. Tang*, J. Huang * & Y. Wu *

author keywords: Exponential covariance model; Sparse grids; Hierarchical algorithm; Low-dimensional structure; Low-rank structure; Truncated multi-variate normal distribution
TL;DR: The hierarchical algorithm structure allows the simultaneous calculations of all the order M and less moments E(H(X)=X1m1⋯XNmN|ai<Xi<bi,i=1,…,N) and the algorithm assumes that H(X) satisfies the truncated multi-variate normal (TMVN) distribution. (via Semantic Scholar)
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13. Climate Action (Web of Science)
Source: Web Of Science
Added: November 21, 2022

2020 journal article

Tuning parameter selection for penalised empirical likelihood with a diverging number of parameters

JOURNAL OF NONPARAMETRIC STATISTICS, 32(1), 246–261.

By: C. Zheng n & Y. Wu*

author keywords: Tuning parameter selection; variable selection; generalised information criterion; empirical likelihood
TL;DR: A generalised information criterion (GIC) for the penalised empirical likelihood in the linear regression case is proposed and it is shown that the tuning parameter selected by the GIC yields the true model consistently even when the number of predictors diverges to infinity with the sample size. (via Semantic Scholar)
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Source: Web Of Science
Added: April 20, 2020

2019 journal article

Diagnostic utility of clinical and laboratory test parameters for differentiating between sudden acquired retinal degeneration syndrome and pituitary‐dependent hyperadrenocorticism in dogs

Veterinary Ophthalmology, 22(6), 842–858.

By: A. Oh n , M. Foster n, J. Williams n, C. Zheng n, H. Ru n, K. Lunn n , F. Mowat n

author keywords: biomarker; dog; hyperadrenocorticism; retina; sudden acquired retinal degeneration syndrome
MeSH headings : Animals; Case-Control Studies; Dog Diseases / diagnosis; Dogs; Electroretinography / veterinary; Female; Male; Pituitary ACTH Hypersecretion / diagnosis; Pituitary ACTH Hypersecretion / veterinary; Retina / pathology; Retinal Degeneration / diagnosis; Retinal Degeneration / veterinary; Tomography, Optical Coherence / veterinary
TL;DR: This work provides the basis for future studies that could identify and examine dogs with SARDS prior to vision loss, which may extend the potential therapeutic window for SARDS. (via Semantic Scholar)
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10. Reduced Inequalities (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: December 16, 2019

2019 journal article

Nonparametric Estimation of Multivariate Mixtures

JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 115(531), 1456–1471.

By: C. Zheng n & Y. Wu*

author keywords: Density estimation; Nonparametric mixture model; Tensor
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Source: Web Of Science
Added: August 12, 2019

2018 journal article

Visual outcome in cats with hypertensive chorioretinopathy

VETERINARY OPHTHALMOLOGY, 22(2), 161–167.

By: W. Young n, C. Zheng n, M. Davidson n & H. Westermeyer n 

author keywords: cat; hypertensive chorioretinopathy; hypertensive retinopathy; retina; systemic hypertension; vision
MeSH headings : Amlodipine / therapeutic use; Animals; Antihypertensive Agents / therapeutic use; Benzazepines / therapeutic use; Blindness / veterinary; Cat Diseases / drug therapy; Cats; Choroid Diseases / drug therapy; Choroid Diseases / etiology; Choroid Diseases / veterinary; Female; Hypertension / complications; Hypertension / drug therapy; Hypertension / veterinary; Hypertensive Retinopathy / drug therapy; Hypertensive Retinopathy / etiology; Hypertensive Retinopathy / veterinary; Male; Prognosis; Treatment Outcome; Vision, Ocular
TL;DR: With treatment, the prognosis for long-term vision in cats with hypertensive chorioretinopathy, even following complete retinal detachment, is good, and presence of menace response at last follow-up evaluation was positively correlated with presence of threat response at presentation. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: April 2, 2019

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