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INDONESIA
Jurnal Pendidikan Matematika
Published by Indonesian Journal Publisher
ISSN : -     EISSN : 30309263     DOI : https://doi.org/10.47134/ppm
Core Subject : Education,
Education Mathematics Other
Jurnal Pendidikan Matematika ISSN 3030-9263 is a scientific journal published by Indonesian Journal Publisher. This journal publishes four issues annually in the months of November, February, May, and August. This journal only accepts original scientific research works (not a review) that have not been published by other media. The focus and scope of Jurnal Pendidikan Matematika include mathematics learning strategies, mathematics learning design, development of mathematics learning tools, analysis in the field of mathematics education, and various things related to mathematics learning from elementary school to college level.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol. 3 No. 2 (2026): February" : 2 Documents clear
Efficient Management of Resources in Complicated Transport Systems: The Use and Extension of Goal Programming to Overcome Multi -Objective Multi-Item Transportation Problems Ahmed, Hasanain Hamed
Jurnal Pendidikan Matematika Vol. 3 No. 2 (2026): February
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/ppm.v3i2.2468

Abstract

The study focuses on the important problem of resource allocation in large, complicated networks of transportation by utilizing goal programming (GP) technique. On the other hand, multi-objective multi-item transport problem is considered under competing objectives such as minimization of transportation costs and reduction in delivery time, environmental impact abatement plus maximization of vehicle utilization. In this paper, such a DSP model is constructed as viewed in its entirety and tightly embedded with a fuzzy goal reaching technique under realistic modifications of transportation circumstances. The model is calibrated using synthetic data from a hypothetical Iraqi road network, and the optimization problem is solved in WinQSP software. Comparison of the final solution indicates that the goal programming outperforms single-objective approaches, showing 18-24% cost reduction with less service level violation and carbon emission. The study is useful for urban logistics planning in the aim of sustainable development, and it also enriches the transport optimization analysis methods for decision maker. This is especially important in emerging countries characterized by limited resources, where “trade-offs” and not just the maximization of some social welfare function play a crucial role for managing transportation systems.
Pemodelan Faktor yang Mempengaruhi Indeks Demokrasi Indonesia Menggunakan Spline Truncated Hanny Valida; M. Fariz Fadillah Mardianto; Amelia, Dita; Suliyanto, Suliyanto
Jurnal Pendidikan Matematika Vol. 3 No. 2 (2026): February
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/ppm.v3i2.2478

Abstract

Penelitian ini bertujuan menganalisis faktor-faktor yang memengaruhi Indeks Demokrasi Indonesia (IDI) menggunakan pendekatan regresi spline linier terpotong nonparametrik. Data yang digunakan merupakan data sekunder cross-section dari 34 provinsi di Indonesia pada tahun 2024, dengan variabel prediktor berupa Indeks Pemberdayaan Gender, Indeks Kebebasan Pers, dan Indeks Pembangunan Manusia. Pemilihan model dilakukan menggunakan kriteria Generalized Cross Validation (GCV) untuk menentukan jumlah dan posisi knot yang optimal. Hasil analisis menunjukkan bahwa model terbaik diperoleh dengan tiga titik knot, menghasilkan nilai GCV sebesar 6,79 dan koefisien determinasi (R²) sebesar 89,37 persen. Hasil penelitian menunjukkan adanya hubungan nonlinier antara variabel prediktor dan IDI. Indeks Pemberdayaan Gender memberikan pengaruh positif pada tingkat rendah hingga menengah, namun berubah menjadi negatif pada tingkat yang lebih tinggi. Indeks Kebebasan Pers menunjukkan pengaruh positif pada tingkat rendah tetapi cenderung negatif setelah melewati titik tertentu. Sementara itu, Indeks Pembangunan Manusia memberikan pengaruh positif yang konsisten terhadap IDI. Temuan ini menunjukkan bahwa kualitas demokrasi di Indonesia dipengaruhi oleh dinamika sosial dan institusional yang kompleks.

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