Results 41 to 50 of about 466,308 (166)

Remarks on drift estimation for diffusion processes [PDF]

open access: yes, 2009
In applications such as molecular dynamics it is of interest to fit Smoluchowski and Langevin equations to data. Practitioners often achieve this by a variety of seemingly ad hoc procedures such as fitting to the empirical measure generated by the data,
Pokern, Yvo   +2 more
core   +2 more sources

Inverse Probability-Weighted Estimation for Dynamic Structural Equation Model with Missing Data

open access: yesMathematics
In various applications, observed variables are missing some information that was intended to be collected. The estimations of both loading and path coefficients could be biased when ignoring the missing data.
Hao Cheng
doaj   +1 more source

Development of Ramsey RESET to Identify the Polynomials Order of Smoothing Spline with Simulation Study

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika)
Path  analysis is used to determine the effect of exogenous variables on endogenous variables. One of the assumptions in path analysis is the linearity assumption. The linearity assumption can be tested using Ramsey RESET.
Muhammad Rafi Hasan Nurdin   +3 more
doaj   +1 more source

HURST STATISTICS (R/S-ANALYSIS) INTHESTUDY OF CLIMATIC VARIABLES

open access: yesНаука. Инновации. Технологии, 2022
Introduction. An R/S analysis of the persistence of trends in climatic variables was carried out in the article using the normalized range method, which is one of the nonparametric approaches for studying series that do not satisfy all the conditions of ...
A. A. Tashilova
doaj   +1 more source

Nonparametric Methods in Astronomy: Think, Regress, Observe -- Pick Any Three [PDF]

open access: yes, 2018
Telescopes are much more expensive than astronomers, so it is essential to minimize required sample sizes by using the most data-efficient statistical methods possible.
Jermyn, Adam S., Steinhardt, Charles L.
core   +2 more sources

Comparison of Curve Estimation of the Smoothing Spline Nonparametric Function Path Based on PLS and PWLS In Various Levels of Heteroscedasticity

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Linearity assumption that has not been fulfilled in the path analysis should use nonparametric approach. This research uses smoothing spline nonparametric path analysis with generated data where the condition of heteroscedasticity level measured through ...
Adji Achmad Rinaldo Fernandes   +7 more
semanticscholar   +1 more source

Estimation of Truncated Spline Function in Non-parametric Path Analysis Based on Weighted Least Square (WLS)

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
The purpose of this research is to identify a particular relationship pattern among predictors and response variables where the response variables are multi-response and correlated. Path analysis is one of the appropriate statistical parametric method to
Muhamad Hidayat   +2 more
semanticscholar   +1 more source

Fast, Robust, and Versatile Event Detection through HMM Belief State Gradient Measures

open access: yes, 2018
Event detection is a critical feature in data-driven systems as it assists with the identification of nominal and anomalous behavior. Event detection is increasingly relevant in robotics as robots operate with greater autonomy in increasingly ...
Duan, Shuangda   +5 more
core   +1 more source

A Generic Path Algorithm for Regularized Statistical Estimation [PDF]

open access: yes, 2012
Regularization is widely used in statistics and machine learning to prevent overfitting and gear solution towards prior information. In general, a regularized estimation problem minimizes the sum of a loss function and a penalty term. The penalty term is
Wu, Yichao, Zhou, Hua
core  

Optimal estimation of the mean function based on discretely sampled functional data: Phase transition [PDF]

open access: yes, 2011
The problem of estimating the mean of random functions based on discretely sampled data arises naturally in functional data analysis. In this paper, we study optimal estimation of the mean function under both common and independent designs. Minimax rates
Cai, T. Tony, Yuan, Ming
core   +3 more sources

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