Results 1 to 10 of about 6,937 (202)

ESTIMASI PARAMETER COX SEMIPARAMETRIC HAZARDS MODEL DENGAN METODE EFRON PADA DATA TERSENSOR KANAN

open access: yesJurnal Matematika UNAND, 2021
Salah satu kendala yang sering dihadapi pada penelitian survival adalah adanya data tersensor. Jika data tersensor dihilangkan, maka akan terjadi bias. Pengolahan data tersensor dapat dilakukan dengan Cox Semiparametric Hazards model. Pada penelitian ini,
TEDY MACHMUD   +3 more
doaj   +1 more source

THE APPLICATION OF THE SEMIPARAMETRIC GSTAR MODEL IN DETERMINING GAMMA-RAY LOG DATA ON SOIL LAYERS

open access: yesMedia Statistika, 2022
This research examines the semiparametric Generalized Space-Time Autoregressive (GSTAR) spacetime modeling and determines its spatial weight. In general, the spatial weights used are uniform, binary weights, and based on the distance, the result is a ...
Yundari Yundari, Shantika Martha
doaj   +1 more source

SMALL AREA ESTIMATION OF MEAN YEARS SCHOOL IN KABUPATEN BOGOR USING SEMIPARAMETRIC P-SPLINE

open access: yesBarekeng, 2022
The Fay-Herriot model, generally uses the EBLUP (Empirical Best Linear Unbiased Prediction) method, is less flexible due to the assumption of linearity.
Christiana Anggraeni Putri   +2 more
doaj   +1 more source

A Semiparametric Tilt Optimality Model

open access: yesStats, 2022
Practitioners often face the situation of comparing any set of k distributions, which may follow neither normality nor equality of variances. We propose a semiparametric model to compare those distributions using an exponential tilt method.
Chathurangi H. Pathiravasan   +1 more
doaj   +1 more source

Right-Censored Time Series Modeling by Modified Semi-Parametric A-Spline Estimator

open access: yesEntropy, 2021
This paper focuses on the adaptive spline (A-spline) fitting of the semiparametric regression model to time series data with right-censored observations.
Dursun Aydın   +2 more
doaj   +1 more source

Forecasts of Value-at-Risk and Expected Shortfall in the Crude Oil Market: A Wavelet-Based Semiparametric Approach

open access: yesEnergies, 2020
We propose the use of wavelet-based semiparametric models for forecasting the value-at-risk (VaR) and expected shortfall (ES) in the crude oil market. We compared the forecast outcomes across different time scales for three semiparametric models, three ...
Lu Yang, Shigeyuki Hamori
doaj   +1 more source

Comparing parametric and semiparametric error correction models for estimation of long run equilibrium between exports and imports

open access: yesApstract: Applied Studies in Agribusiness and Commerce, 2017
This paper introduces the semiparametric error correction model for estimation of export-import relationship as an alternative to the least squares approach.
Henry De-Graft Acquah   +1 more
doaj   +1 more source

bsamGP: An R Package for Bayesian Spectral Analysis Models Using Gaussian Process Priors

open access: yesJournal of Statistical Software, 2019
The Bayesian spectral analysis model (BSAM) is a powerful tool to deal with semiparametric methods in regression and density estimation based on the spectral representation of Gaussian process priors. The bsamGP package for R provides a comprehensive set
Seongil Jo   +3 more
doaj   +1 more source

Generalizing sample tree information with semiparametric and parametric models.

open access: yesSilva Fennica, 1995
Semiparametric models, ordinary regression models and mixed models were compared for modelling stem volume in National Forest Inventory data. MSE was lowest for the mixed model.
Kangas, Annika, Korhonen, Kari
doaj   +1 more source

A semiparametric cluster detection method — a comprehensive power comparison with Kulldorff's method

open access: yesInternational Journal of Health Geographics, 2009
Background A semiparametric density ratio method which borrows strength from two or more samples can be applied to moving window of variable size in cluster detection. The method requires neither the prior knowledge of the underlying distribution nor the
Kedem Benjamin, Wen Shihua
doaj   +1 more source

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