Browsing A - Mathematics and Natural Sciences by Author "Sifriyani, Sifriyani"
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A New Method of Hypothesis Test for Truncated Spline Nonparametric Regression Influenced by Spatial Heterogeneity and Application
Sifriyani, Sifriyani (Jurnal International Abstract and Applied Analysis, 2018)This study we development a new method of hypothesis testing of model conformity between truncated spline nonparametric regression influenced by spatial heterogeneity versus truncated spline nonparametric regression. This ... -
Development Of Nonparametric Geographically Weighted Regression Using Truncated Spline Approach
Sifriyani, Sifriyani (Songklanakarin Journal of Science And Technology, 2018)Nonparametric geographically weighted regression with truncated spline approach is a new method of statistical science. It is used to solve the problems of regression analysis of spatial data if the regression curve is ... -
Evaluation of Factors Affecting Increased Unemployment in East Java Using NGWR-TS Method. ISSN (Print & Online): 2307-4531
Sifriyani, Sifriyani (International Journal Of Sciences: Basic and Applied Research, 2019)Objectives: In this study, an experimental investigation of how the factors that affect TPT in East Java Indonesia from a spatiotemporal perspective. Study Design: Data were taken from 38 Regencies/Cities in East Java ... -
Evaluation of Forest Productivity and Governance on the Preservation of Tropical Rain Forests in Kalimantan Using The NGWR-TS Nonparametric Geospatial Method
Sifriyani, Sifriyani; Ruslan, Ruslan; Susanty, Farida Herry (2019)Tropical rainforests in Kalimantan are experiencing very rapid degradation, until 2019 the area of forest in Kalimantan has continued to shrink, so it is necessary to evaluate the handling of tropical rainforests by ... -
Geographically Weighted Regression with Spline Approach
Sifriyani, Sifriyani (Far East Journal of Mathematical Sciences (FJMS), 2017)Geographically weighted truncated spline nonparametric regression is a new method of statistical science. It is used to solve the problems of regression analysis of spatial data whose regression curve is unknown. This ... -
Identification of Factors Affecting Food Productivity Improvement in Kalimantan using Nonparametric Spatial Regression Method
Sifriyani, Sifriyani; Suyitno, Suyitno; Rizki, N.A (2019)Problems of Food Productivity in Kalimantan is experiencing instability. Every year, various problems and inhibiting factors that cause the independence of food production in Kalimantan are suffering a setback. The food ... -
Mapping and Analysis Factors of Affecting Productivity Tropical Rain Forests in East Kalimantan
Sifriyani, Sifriyani; Ruslan, Ruslan; Susanty, Farida Herry (2019)Up to 2019, tropical rainforests in East Kalimantan has been experiencing very rapid degradation and continues to shrink. Therefore, it is necessary to evaluate mapping and analysis of factors affecting the productivity ... -
Simultaneous Hypothesis Testing of Multivariable Nonparametric Spline Regression in the GWR Model
Sifriyani, Sifriyani (2019)In this research, studied multivariable nonparametric geographically weighted regression use truncated spline approach. The model is an expansion of nonparametric truncated spline regression that takes into account ...