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UPT Publikasi Ilmiah, Universitas Islam Bandung. Jl. Tamansari No. 20, Bandung 40116, Indonesia, Tlp +62 22 420 3368, +62 22 426 3895 ext. 6891
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Bandung Conference Series: Statistics
Published by Universitas Islam Bandung
ISSN : -     EISSN : 2828206X     DOI : https://doi.org/10.29313/bcss.v2i2
Core Subject : Science, Education,
Decision Sciences, Operations Research & Management Education Mathematics
Bandung Conference Series: Statistics (BCSS) menerbitkan artikel penelitian akademik tentang kajian teoritis dan terapan serta berfokus pada Statistika dengan ruang lingkup sebagai berikut: Alternating Least Square, Analisis Konjoin, Autoregressive, Auxiliary Variabel, Baby Birth, Block Maxima, Churn Distribusi Skellam, Cox Regression, Data spasial, DBD Ordinal Logistic Regression, Diagram kendali, Discrete Choice Experiment Method, Discrete Time Logistic, empirical likelihood, Fisher Scoring, Generalized Structured Component Analysis, Geographically Weighted Regression, GEV, GJR GARCH, Infant Mortality Preferensi, Insurance Claim, Kaplan-Meier, Kernel Bi-Square, Gaussian, Logistic Regression, Maternal Mortality, Mixed Geographically Weighted Regression Model GSTAR, MLE, Model ARIMAX, MSE. Multiple linear regression analysis, Nadaraya Watson, Newton Raphson Method, Nonparametrik Spline Confidence Interval, Optimasi Multi-Objek, orde Spasial, Outlier, Pareto Optimal, Partial Proportional Odds Model, Pemodelan Indeks Pembangunan Manusia. Penduga Rasio dan Produk Tipe Eksponensial, Peramalan, Poisson Bivariate Regression, Poisson Regression, Rata-rata Populasi berhingga, Regresi, Return Period Exogenous Variable, RMSE, Structural Equation Modeling, Survival Analysis, Threshold, Vibrasi Bearing, zero-inflated. Prosiding ini diterbitkan oleh UPT Publikasi Ilmiah Unisba. Artikel yang dikirimkan ke prosiding ini akan diproses secara online dan menggunakan double blind review minimal oleh dua orang mitra bebestari.
Arjuna Subject : Matematika - Statistik dan Probabilitas
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Pemodelan Tingkat Kemiskinan di Jawa Timur Menggunakan Regresi Ridge Hoerl–Kennard–Baldwin (HKB) Herdian Syah; Suliadi Suliadi
Bandung Conference Series: Statistics 347-354
Publisher : UNISBA Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/bcss.v6i2.26201

Abstract

Poverty remains a multidimensional challenge in East Java, with a rate of 10.35% in 2023 and significant disparities across districts. This study applies Ridge Regression with the Hoerl-Kennard-Baldwin (HKB) estimator to model poverty determinants while addressing multicollinearity. Using secondary data from BPS East Java (38 districts), six predictors were analyzed: Mean Years of Schooling (X₁), Open Unemployment Rate (X₂), GRDP (X₃), Human Development Index (X₄), Literacy Rate (X₅), and Poverty Depth Index (X₆). OLS estimation revealed severe multicollinearity (VIF X₁=33.6, X₄=29.1). The HKB method produced a penalty parameter k=1.134964. The final Ridge model is Ŷ=31.8732−0.1023X₁−0.1655X₂+0.0041X₃−0.2185X₄−0.0918X₅+3.0626X₆. Partial significance tests (effective df=32.46) identified only X₄ and X₆ as significant at α=5%. X₄ negatively affects poverty (−0.2185%), while X₆ has the largest positive impact (3.0626%). Other variables were statistically insignificant. These findings confirm the effectiveness of Ridge-HKB in stabilizing coefficient estimates under multicollinearity. Policy priorities should focus on reducing the Poverty Depth Index and improving Human Development Index.Kemiskinan merupakan tantangan multidimensi di Jawa Timur, dengan angka 10,35% pada tahun 2023 dan disparitas antarkabupaten/kota yang signifikan. Penelitian ini menerapkan Regresi Ridge dengan estimator Hoerl-Kennard-Baldwin (HKB) untuk memodelkan determinan kemiskinan sambil mengatasi multikolinearitas. Menggunakan data sekunder BPS Jawa Timur (38 kabupaten/kota), enam prediktor dianalisis: Rata-rata Lama Sekolah (X₁), Tingkat Pengangguran Terbuka (X₂), PDRB (X₃), Indeks Pembangunan Manusia (X₄), Angka Melek Huruf (X₅), dan Indeks Kedalaman Kemiskinan (X₆). Estimasi MKT menunjukkan multikolinearitas berat (VIF X₁=33,6; X₄=29,1). Metode HKB menghasilkan parameter penalti k=1,134964. Model Ridge akhir adalah Ŷ=31,8732−0,1023X₁−0,1655X₂+0,0041X₃−0,2185X₄−0,0918X₅+3,0626X₆. Uji signifikansi parsial (df efektif=32,46) mengidentifikasi hanya X₄ dan X₆ yang signifikan pada α=5%. X₄ berpengaruh negatif (−0,2185%), sedangkan X₆ memiliki dampak positif terbesar (3,0626%). Variabel lainnya tidak signifikan secara statistik. Temuan ini mengonfirmasi efektivitas Ridge-HKB dalam menstabilkan estimasi koefisien di bawah multikolinearitas. Prioritas kebijakan sebaiknya difokuskan pada penurunan Indeks Kedalaman Kemiskinan dan peningkatan Indeks Pembangunan Manusia.

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