Results 21 to 30 of about 22,182 (267)
Application of SARIMA model to forecasting monthly flows in Waterval River, South Africa
Journal of Water and Land Development, 2017 Knowledge of future river flow information is fundamental for development and management of a river system. In this study, Waterval River flow was forecasted by SARIMA model using GRETL statistical software. Mean monthly flows from 1960 to 2016 were used
Tadesse Kassahun Birhanu +1 more
doaj +1 more source
Efficient Estimation in Heteroscedastic Varying Coefficient Models
Econometrics, 2015 This paper considers statistical inference for the heteroscedastic varying coefficient model. We propose an efficient estimator for coefficient functions that is more efficient than the conventional local-linear estimator.
Chuanhua Wei, Lijie Wan
doaj +1 more source
Frontiers in Public Health, 2016 This paper reviews common challenges encountered in statistical analyses of epidemiological data for epidemiologists. We focus on the application of linear regression, multivariate logistic regression, and log-linear modeling to epidemiological data ...
Lihan Yan +4 more
doaj +1 more source
Modeling the exchange rate of the euro against the dollar using the ARCH/GARCH models [PDF]
Bankarstvo, 2016 The analysis of time series with conditional heteroskedasticity (changeable time variability, conditional variance instability, the phenomenon called volatility) is the main task of ARCH and GARCH models.
Kovačević Radovan
doaj +1 more source
Fitting functional response surfaces to data: a best practice guide
Ecosphere, 2020 Describing how resource consumption rates depend on resource density, conventionally termed “functional responses,” is crucial to understanding the population dynamics of trophically interacting organisms.
Wojciech Uszko +2 more
doaj +1 more source
Cauchy: Jurnal Matematika Murni dan Aplikasi, 2017 The purpose of this article was to describe the ability of the quantile regression method in overcoming the violation of classical assumptions. The classical assumptions that are violated in this study are variations of non-homogeneous error or ...
Ferra Yanuar
doaj +1 more source
Investment Risk Analysis On Bitcoin With Applied of VaR-APARCH Model
JTAM (Jurnal Teori dan Aplikasi Matematika), 2021 Investment can be defined as an activity to postpone consumption at the present time with the aim to obtain maximum profits in the future. However, the greater the benefits, the greater the risk.
Irwan Kasse +3 more
doaj +1 more source
Massively Scaling Heteroscedastic Classifiers
CoRR, 2023 Accepted to ICLR ...
Mark Collier +5 more
openaire +4 more sources
Mathematics, 2021 In this paper, we provide a mathematical and statistical methodology using heteroscedastic estimation to achieve the aim of building a more precise mathematical model for complex financial data.
Chih-Wen Hsiao +3 more
doaj +1 more source
Comparing Linear Regression to Shrinkage Regression Algorithms (RR, Lasso, El Net) Using PTSD Patients’ Data [PDF]
پژوهشهای کاربردی روانشناختی, 2020 The purpose of this research was to introduce the alternative model of regression algorithms and having it compared to linear regression. To do this, we need to use modern algorithms such as Ridge, Lasso, and Elastic net regression in which precision is ...
Hojjatollah Farahani
doaj +1 more source