Robust Switching Regressions Using the Laplace Distribution
نویسندگان
چکیده
This paper presents a robust method for dealing with switching regression problems. Regression models switch-points are broadly employed in diverse areas. Many traditional methods regressions can falter the presence of outliers or heavy-tailed distributions because modeling assumptions Gaussian errors. The outlier corruption datasets is often unavoidable. When misapplied, assumption lead to incorrect inference making. Laplace distribution known as longer-tailed alternative normal and connected least absolute deviation criterion. We propose model distributed To advance robustness, we extend fuzzy class create algorithm named FCL through classification maximum likelihood procedure. robustness properties resistance against high-leverage discussed. Simulations sensitivity analyses illustrate effectiveness superiority proposed algorithm. experimental results indicate that much more than EM-based Furthermore, Laplace-based time-saving t-based Diverse real-world applications demonstrate practicality approach.
منابع مشابه
Robust mixture regression model fitting by Laplace distribution
A robust estimation procedure for mixture linear regression models is proposed by assuming that the error terms follow a Laplace distribution. The estimation procedure is implemented by an EM algorithm based on the fact that the Laplace distribution is a scale mixture of a normal distribution. Finite sample performance of the proposed algorithm is evaluated by numerical simulation studies. The ...
متن کاملA New Modification in the Classical Laplace Distribution
‎Several modifications of the Laplace distribution have been introduced and applied in various fields up to this day‎. ‎In this paper‎, ‎we introduce a modified symmetric version of the classical Laplace distribution‎. ‎We provide a comprehensive theoretical description of this distribution‎. ‎In particular‎, ‎we derive the formulas for th...
متن کاملMultiple Linear Regressions by Maximizing the Likelihood under Assumption of Generalized Gauss-Laplace Distribution of the Error
Multiple linear regression analysis is widely used to link an outcome with predictors for better understanding of the behaviour of the outcome of interest. Usually, under the assumption that the errors follow a normal distribution, the coefficients of the model are estimated by minimizing the sum of squared deviations. A new approach based on maximum likelihood estimation is proposed for findin...
متن کاملQuantile regression for longitudinal data using the asymmetric Laplace distribution.
In longitudinal studies, measurements of the same individuals are taken repeatedly through time. Often, the primary goal is to characterize the change in response over time and the factors that influence change. Factors can affect not only the location but also more generally the shape of the distribution of the response over time. To make inference about the shape of a population distribution,...
متن کاملFitting multiplicative models by robust alternating regressions
In this paper a robust approach for fitting multiplicative models is presented. Focus is on the factor analysis model, where we will estimate factor loadings and scores by a robust alternating regression algorithm. The approach is highly robust, and also works well when there are more variables than observations. The technique yields a robust biplot, depicting the interaction structure between ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematics
سال: 2022
ISSN: ['2227-7390']
DOI: https://doi.org/10.3390/math10244722