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Advanced Search Results For "QUANTILE regression"

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 "QUANTILE regression"
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A Flexible Regression Modeling Approach Applied to Observational Laboratory Virological Data Suggests That SARS-CoV-2 Load in Upper Respiratory Tract Samples Changes with COVID-19 Epidemiology.

Publication Type: Academic Journal

Source(s): Viruses (1999-4915). Oct2023, Vol. 15 Issue 10, p1988. 13p.

Abstract: (1) Background. Exploring the evolution of SARS-CoV-2 load and clearance from the upper respiratory tract samples is important to improving COVID-19 control. Data were collected retrospectively from a laboratory dataset on SARS-CoV-2 load quantified in...

Modeling Environmental Pollution Using Varying-Coefficients Quantile Regression Models under Log-Symmetric Distributions.

Publication Type: Academic Journal

Source(s): Axioms (2075-1680). Oct2023, Vol. 12 Issue 10, p976. 20p.

Abstract: Many phenomena can be described by random variables that follow asymmetrical distributions. In the context of regression, when the response variable Y follows such a distribution, it is preferable to estimate the response variable for predictor values ...

Network Activity and Ethereum Gas Prices.

Publication Type: Academic Journal

Source(s): Journal of Risk & Financial Management. Oct2023, Vol. 16 Issue 10, p431. 14p.

Abstract: This article explores the extent to which network activity can explain changes in Ethereum transaction fees. Such fees are referred to as "gas prices" within the Ethereum blockchain, and are important inputs not only for executing transactions, but als...

Quasi-Cauchy Regression Modeling for Fractiles Based on Data Supported in the Unit Interval.

Publication Type: Academic Journal

Source(s): Fractal & Fractional. Sep2023, Vol. 7 Issue 9, p667. 16p.

Abstract: A fractile is a location on a probability density function with the associated surface being a proportion of such a density function. The present study introduces a novel methodological approach to modeling data within the continuous unit interval usin...

Quantile Estimation Using the Log-Skew-Normal Linear Regression Model with Application to Children's Weight Data.

Publication Type: Academic Journal

Source(s): Mathematics (2227-7390). Sep2023, Vol. 11 Issue 17, p3736. 10p.

Abstract: In this article, we establish properties that relate quantiles of the log-skew-normal distribution to its parameters, allowing us to investigate the relationship between quantiles of a positive skewed response variable and a set of explanatory variable...

Quantile Regression Based on the Weighted Approach with Dependent Truncated Data.

Publication Type: Academic Journal

Source(s): Mathematics (2227-7390). Sep2023, Vol. 11 Issue 17, p3669. 13p.

Abstract: This paper discusses the estimation of parameters in the quantile regression model for dependent truncated data. To account for the dependence between the survival time and the truncated time, the Archimedean copula model is used to construct the assoc...

Optimal Confidence Regions for Weibull Parameters and Quantiles under Progressive Censoring.

Publication Type: Academic Journal

Source(s): Algorithms. Sep2023, Vol. 16 Issue 9, p427. 11p.

Abstract: Confidence regions for the Weibull parameters with minimum areas among all those based on the Conditionality Principle are constructed using an equivalent diffuse Bayesian approach. The process is valid for scenarios involving standard failure and prog...

Compromised-Imputation and EWMA-Based Memory-Type Mean Estimators Using Quantile Regression.

Publication Type: Academic Journal

Source(s): Symmetry (20738994). Oct2023, Vol. 15 Issue 10, p1888. 15p.

Abstract: Survey sampling commonly faces the challenge of missing information, prompting the development of various imputation-based mean estimation methods to address this concern. Among these, ratio-type regression estimators have been devised to compute popul...

The Market Responses of Ice and Snow Destinations to Southerners' Tourism Willingness: A Case Study from China.

Publication Type: Academic Journal

Source(s): Sustainability (2071-1050). Sep2023, Vol. 15 Issue 18, p13759. 22p.

Abstract: Since the 2022 Beijing Winter Olympics, China has been promoting ice and snow tourism, mainly to domestic tourists from southern China. Thus, ice–snow tourism operators in the north need to know what Southerners want. Respondents from south of the Yang...

Estimation of Hypoxic Areas in the Western Baltic Sea with Geostatistical Models.

Publication Type: Academic Journal

Source(s): Water (20734441). Sep2023, Vol. 15 Issue 18, p3235. 25p.

Abstract: Dissolved oxygen is essential for all marine life, especially for benthic organisms that live on the seafloor and are unable to escape if oxygen concentrations fall below critical thresholds. Therefore, near-bottom oxygen concentrations are a key compo...

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