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All Journal JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Jurnal Statistika Universitas Muhammadiyah Semarang BAREKENG: Jurnal Ilmu Matematika dan Terapan JTAM (Jurnal Teori dan Aplikasi Matematika) Zeta - Math Journal J Statistika: Jurnal Ilmiah Teori dan Aplikasi Statistika Jambura Journal of Mathematics M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Varian Mandalika Mathematics and Educations Journal Inferensi JAMBURA JOURNAL OF PROBABILITY AND STATISTICS Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Jurnal Litbang Edusaintech ARRUS Journal of Mathematics and Applied Science Mathematics and Applications (MAp) Journal Jurnal Siger Matematika Journal of Research Applications in Community Services Eksponensial Asian Journal of Science, Technology, Engineering, and Art Mikailalsys Journal of Mathematics and Statistics
Dani, Andrea Tri Rian
Universitas Mulawarman
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Pengelompokkan Data Runtun Waktu menggunakan Analisis Cluster: Studi Kasus: Nilai Ekspor Komoditi Migas dan Nonmigas Provinsi Kalimantan Timur Periode Januari 2000-Desember 2016 Dani, Andrea Tri Rian; Wahyuningsih, Sri; Rizki, Nanda Arista
EKSPONENSIAL Vol. 11 No. 1 (2020)
Publisher : Program Studi Statistika FMIPA Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.538 KB) | DOI: 10.30872/eksponensial.v11i1.642

Abstract

The export value of East Kalimantan Province has big data conditions with time series and multivariable data types. Cluster analysis can be applied to time series data, where there are different procedures and grouping algorithms compared to grouping cross section data. Algorithms and procedures in the cluster formation process are done differently, because time series data is a series of observational data that occur based on a time index in sequence with a fixed time interval. The purpose of this research is to obtain the best similarity measurement using the cophenetic correlation coefficient and get the optimal c-value using the silhouete coefficient. In this study, the grouping algorithm used is a single linkage with four measurements of similarity, namely the Pearson correlation distance, euclidean, dynamic time warping and autocorrelation based distance. The sample in this study is the data on the export value of oil and non-oil commodities in East Kalimantan Province from January 2000 to December 2016 consisting of 10 variables. Based on the results of the analysis, the distance of the best similarity measurement in clustering the export value of oil and non-oil commodities in East Kalimantan Province is the dynamic time warping distance with the optimal c-value of 3 clusters.
PENERAPAN MODEL REGRESI SURVIVAL WEIBULL PADA DATA PASIEN PENYAKIT GINJAL Putra, Fachrian Bimantoro; Chandra, Yossy; Dani, Andrea Tri Rian; Wigantono, Sri; Ni'matuzzahroh, Ludia
MAp (Mathematics and Applications) Journal Vol 6, No 1 (2024)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/map.v6i1.8221

Abstract

Regresi linier adalah suatu metode prediksi yang digunakan untuk menggambarkan hubungan antara variabel prediktor dan variabel respon. Ketika variabel respon yang digunakan mengikuti distribusi Weibull, maka analisis regresi yang digunakan adalah analisis regresi Weibull. Pemodelan regresi Weibull pada penelitian ini diaplikasikan pada data waktu rawat inap pasien penyakit ginjal. Berdasarkan hal tersebut, maka tujuan penelitian ini adalah untuk mengetahui model regresi Weibull yang diaplikasikan pada data lama rawat inap pasien ginjal, serta untuk mengetahui apakah Variabel Umur, Jenis Kelamin , Riwayat Penyakit, dan Kelemahan (Frail) memiliki pengaruh terhadap lama waktu rawat inap pasien ginjal. Pengujian distribusi data waktu rawat inap menggunakan pendekatan Anderson-Darling diperoleh data waktu rawat inap pasien penyakit ginjal mengikuti distribusi Weibull. Hasil dari penelitian ini diperoleh faktor-faktor yang terbukti berpengaruh terhadap lama waktu rawat inap pasien ginjal, yaitu Frail, Jenis Kelamin, dan Riwayat Penyakit.
PENERAPAN ALGORITMA HIERARCHICAL CLUSTERING DALAM PENGELOMPOKKAN KABUPATEN/KOTA DI PAPUA BERDASARKAN INDIKATOR KEMISKINAN Putra, Fachrian Bimantoro; Dani, Andrea Tri Rian; Wigantono, Sri
MAp (Mathematics and Applications) Journal Vol 5, No 2 (2023)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/map.v5i2.7025

Abstract

Papua merupakan provinsi paling timur Indonesia yang memiliki kekayaan alam yang melimpah, khususnya kekayaan alam mineral. Namun hal tersebut, tidak serta merta melepaskan masyarakat Papua dari belenggu kemiskinan. Dari sudut pandang ekonomi, kemiskinan berkaitan dengan rasio ketergantungan, pendidikan, dan Kesehatan. Oleh karena itu, dalam upaya pengentasan kemiskinan di Papua, di rasa menjadi hal yang menarik dan perlu untuk melihat pengelompokkan wilayah mana saja yang perlu diprioritaskan. Pengelompokkan kabupaten/kota dilakukan dengan menggunakan algoritma hierarchical clustering, diantaranya single linkage, complete linkage, dan average linkage. Berdasarkan hasil analisis, diperoleh algoritma yang terbaik adalah complete linkage dengan jumlah klaster optimal yaitu 3 klaster. Pada klaster 1, terdapat 12 Kabupaten/Kota, klaster 2 terdapat 13 Kabupaten/Kota, dan klaster 3 terdapat 4 Kabupaten/Kota.
Pengelompokan Provinsi Berdasarkan Indikator Ekonomi, Pendidikan, Kesehatan, dan Kriminalitas di Indonesia Menggunakan Algoritma Centroid Linkage Candra, Yossy; Goejantoro, Rito; Dani, Andrea Tri Rian
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi EULER: Volume 12 Issue 1 June 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/euler.v12i1.24887

Abstract

With its rich cultural diversity and abundant natural resource potential, Indonesia still faces various social science problems. Economic inequality, low quality of education, limited access to health, and high crime rates are social problems that hit various provinces in Indonesia. This research was conducted to group provinces in Indonesia based on social indicators, which include economy, education, health, and crime. This research uses cluster analysis with the Centroid Linkage algorithm to group provinces in Indonesia. The Centroid Linkage algorithm was chosen because of its advantages in producing optimal grouping. Test cluster validity using the Silhouette Coefficient (SC). The case studies used are variables that are thought to be related to economic, health, education, and crime problems in 34 provinces in Indonesia in 2021. Based on the analysis, the grouping results using the Centroid Linkage algorithm show that the optimal number of clusters is 2, with an SC value of 0.538. Cluster 1 consists of 33 provinces, and Cluster 2 consists of only one province, DKI Jakarta.
Determining Sister City Regency/City Non-Sample Cost of Living Survey (SBH) and Clustering Analysis of Consumption Patterns in West Java using the Machine Learning Method Novidianto, Raditya; Tanur, Erwin; Dani, Andrea Tri Rian; Putra, Fachrian Bimantoro
Jurnal Statistika Universitas Muhammadiyah Semarang Vol 12, No 1 (2024): Jurnal Statistika Universitass Muhammadiyah Semarang
Publisher : Department Statistics, Faculty Mathematics and Natural Science, UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jsunimus.12.1.2024.%p

Abstract

Inflation is a significant data source in policy making. However, not all Regency/cities have inflation figures. As a result, Regency/cities must borrow inflation figures from dietary characteristics, GDP per capita, population, and distance between Regency and cities; this is called a sister city. With the help of machine learning, the similarity level method using distance measures, namely Euclidean distance, CID distance, and ACF distance, can help Regency/cities find sister cities. Furthermore, grouping was carried out using a biclustering algorithm to see the characteristic variables in West Java from the same consumption pattern data. The biclustering parameter with tuning parameter ????=0.1 is the best bicluster with a total of 3 biclusters with a value of MSR/V=0.02433 with identical characteristic variables, namely Average Fish Consumption (X3), Average Meat Consumption (X4), Average Consumption of Eggs and Milk (X5), Average Consumption of Vegetables (X6), Average Consumption of Fruit (X8), Average Consumption of Oil and Coconut (X9), Average Consumption of Housing and Household Facilities (X15), Average Consumption of Various Goods and Services and Average Consumption of Taxes (X16), Levies and Insurance (X19).
Data Speaks: District Clustering Map to Reveal Basic Education Problems in Samarinda City Oroh, Chiko Zet; Dani, Andrea Tri Rian; Muawanah, Chusnul; Sitinjak, Jesselin Paskalis; Ibaad, Muhammad Irsadul; Mislan, Mislan; Kosasih, Raditya Arya
Asian Journal of Science, Technology, Engineering, and Art Vol 2 No 6 (2024): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v2i6.3938

Abstract

Education is an effort to create a learning environment and educational process that encourages the development of students' potential. One of the statistical methods that can be used in the field of education is cluster analysis. Average linkage is a hierarchical clustering algorithm that groups objects based on the average distance between objects in different clusters. In this study, sub-districts were grouped based on education indicators at the primary/elementary level in Samarinda City in 2023. The results of this research obtained 2 clusters that were the most optimal because they had the highest Silhouette coefficient value. Cluster 1 contains the subdistricts of Samarinda Ulu and Sungai Kunjang, while cluster 2 contains the subdistricts of North Samarinda, Palaran, Sungai Pinang, Sambutan, Loa Janan Ilir, Samarinda Ilir, Samarinda Seberang, and Samarinda Kota. Cluster 1 has an advantage over cluster 2 in several aspects of education. Cluster 1 shows a higher average in terms of the number of students, the number of classrooms, the number of institutions, the number of certified teachers, and the number of A-accredited schools at the primary/secondary level in Kota Samarinda in 2023.
Digitalisasi Desa Dondang: Transformasi Layanan Publik Melalui Optimasi Website sebagai Katalis Perubahan Darnah, Darnah; Fauziyah, Meirinda; Dani, Andrea Tri Rian
Journal of Research Applications in Community Service Vol. 3 No. 4 (2024): Journal of Research Applications in Community Service
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32665/jarcoms.v3i4.3430

Abstract

Optimalisasi website Kelurahan Dondang merupakan salah satu program big77 yang lahir dari suatu permasalahan yaitu perlunya lebih memanfaatkan website sebagai media informasi dan akses layanan terpadu untuk meningkatkan aksesibilitas informasi dan efektivitas pelayanan publik. Program ini dilaksanakan selama 40 hari sejak 8 Juli 2024 hingga 12 Agustus 2024 dengan melibatkan pihak Desa Dondang sebagai Mitra Pengabdian. Metode yang digunakan dalam pelaksanaan program meliputi perencanaan, observasi data kependudukan, validasi data, dan input data ke dalam sistem. Pada tahap awal, disusun alur kerja sebagai peta jalan pelaksanaan program optimasi website. Observasi terhadap data kependudukan mengungkapkan adanya banyak data yang memerlukan validasi akibat kesalahan manusia (human error). Proses selanjutnya adalah validasi data yang diikuti dengan penginputan data ke dalam sistem untuk membangun database informasi yang akurat. Hasil dari program ini adalah tersedianya website Kelurahan Dondang yang lengkap dengan fitur pengelolaan data administrasi, layanan informasi online, dan transparansi kegiatan pemerintah. Website ini mempermudah aparat kelurahan dalam pelayanan publik, meningkatkan kecepatan dan akurasi administrasi, serta mendukung keterbukaan informasi bagi masyarakat. Dengan optimalisasi ini, pemerintah dapat mengidentifikasi permasalahan lokal dan membuat kebijakan pembangunan yang lebih terfokus.
Faktor Yang Berpengaruh Terhadap Kematian Bayi Baru Lahir Di Daerah Kepulauan Alor Adrianingsih, Narita Yuri; Hinadang, Elen A.; Dani, Andrea Tri Rian; Novitasari, Nilam
Jambura Journal of Probability and Statistics Vol 5, No 2 (2024): Jambura Journal of Probability and Statistics
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjps.v5i2.19432

Abstract

Binary logistic regression is an analysis that aims to determine the relationship between one or more predictor variables that are quantitative, qualitative, or a combination of both to a dichotomous response variable with two categories. Binary logistic regression analysis can also be applied in the health sector, especially in newborns' dead or alive status. Infant deaths in Indonesia, especially in the Alor Islands, are still widespread, which is due to several factors. In this study, several variables are thought to influence the status of the newborn, namely the newborn's weight, the baby's body length, the baby's gender, asphyxia, the mother's systolic blood pressure, and the mother's age at birth. The results of the analysis from this research showed that the factor that influences the death of newborn babies in the Alor Islands area is asphyxia. Newborn babies who experience asphyxia are 109,947 times more likely to die compared to babies who do not experience asphyxia.  
ANALISIS DINAMIK MODEL MATEMATIKA PENYEBARAN PENYAKIT KECANDUAN GAME ONLINE DENGAN MEMPERHATIKAN FAKTOR EDUKASI Wigantono, Sri; A'yun, Qonita Qurrota; Sandariria, Hardina; Dani, Andrea Tri Rian; Fauziyah, Meirinda
MAp (Mathematics and Applications) Journal Vol 6, No 2 (2024)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/map.v6i2.10065

Abstract

Kecanduan bermain game online adalah bentuk penggunaan aplikasi permainan yang kurang bijak. Dampak buruk dan banyak masalah sosial muncul akibat dari kecanduan bermain game online.  Pada penelitian ini dibahas model matematika penyebaran penyakit kecanduan bermain game online dengan memperhatikan faktor edukasi. Model ini bertipe SEAR yang terdiri atas empat kompartemen, yaitu Susceptible (rentan), Exposed (terpapar), Addicted (kecanduan), dan Recovered (sembuh). Kemudian, pada penelitian ini ditentukan titik setimbang, bilangan reproduksi dasar, dan dilakukan analisis kestabilan titik setimbang yang sudah diperoleh. Berdasarkan hasil analisis kestabilan titik setimbang, didapat bahwa titik setimbang bebas penyakit model bersifat stabil asimtotis jika bilangan reproduksi dasar bernilai kurang dari satu dan titik setimbang endemik bersifat stabil asimtotis jika bilangan reproduksi dasar bernilai lebih dari satu. Berdasarkan hasil simulasi numerik didapat bahwa ilustrasi kestabilan lokal titik setimbang sesuai dengan hasil analisis yaitu konvergen ke titik setimbangnya. Selain itu, dari hasil numerik juga menunjukkan keefektivitasan faktor edukasi pada model yaitu semakin tinggi tingkat edukasi, maka akan menurunkan populasi yang terpapar dan populasi kecanduan bermain game online.
The Modeling Maximum Water Level in Sangkuliman East Borneo using Singular Spectrum Analysis Dani, Andrea Tri Rian; Mislan, Mislan; Putra, Fachrian Bimantoro
ARRUS Journal of Mathematics and Applied Science Vol. 4 No. 2 (2024)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/mathscience2945

Abstract

Penelitian ini bertujuan untuk memodelkan rata-rata tinggi muka air maksimum di danau Sangkuliman dengan menggunakan data runtun waktu yang dikumpulkan sejak Januari 2015 – Desember 2022. Metode yang digunakan adalah Singular Spectrum Analysis (SSA). SSA adalah salah satu metode analisis runtun waktu yang memiliki kelebihan, diantaranya fleksibilitas dalam mendeteksi pola khususnya pola musiman. Data dibagi menjadi data in-sample dan out-sample dengan proporsi 90:10. Ukuran akurasi yang digunakan adalah Symmetric Mean Absolute Percentage Error (SMAPE). Berdasarkan hasil analisis, diperoleh windown length optimal L = 12 dengan nilai SMAPE minimum. Hasil peramalan dari SSA berdasarkan koefisien Linear Recurrent Formula (LRF) menunjukkan pola data hasil prediksi cenderung mengikuti pola data aktual.
Co-Authors A'yun, Qonita Qurrota Adhitya Ronnie Effendie, Adhitya Ronnie AINURROCHMAH, ALIFTA Alifta Ainurrochmah Alifta Ainurrochmah Anisar, Anggi Putri AVIANTHOLIB, IGAR CALVERIA Avrilia, Khairunnisa Budi Cahyono Budi, Ennesya Estya Candra, Yossy Chandra, Yossy Dandito Laa Ull Darnah Darnah, Darnah Dimas Nugroho Dwi Seputro Fachrian Bimantoro Putra Fadlirhohim, Rizki Dwi Fauziyah, Meirinda Fidia Deny Tisna Amijaya Goenjatoro, Rito Hardina Sandariria Hinadang, Elen A. I Gusti Bagus Ngurah Diksa I Nyoman Budiantara I Nyoman Budiantara Ibaad, Muhammad Irsadul indarsih, Indarsih Koirudin, Hadi Kosasih, Raditya Arya Krisna Rendi Awalludin Ludia Ni'matuzzahroh Ludia Ni’matuzzahroh M. Fathurahman M. Yogi Riyantama Isjoni Mahmuda, Siti Mar’ah, Zakiyah Meirinda Fauziyah Melisa Arumsari Memi Nor Hayati Mislan Muawanah, Chusnul Muhammad Aldani Zen Mulyadi, Taqriri Kamal Nanda Arista Rizki NARITA YURI ADRIANINGSIH Ni'matuzzahroh, Ludia Nilam Novita Sari Novidianto, Raditya Nurul Istiqomah Oroh, Chiko Zet Puspitasari, Melda Putra, Fachrian Bimantoro Qonita Qurrota A'yun Raditya Arya Kosasih Raditya Novidianto Rahayu, Joana K. Rahmah, Syifa M. Rahmah, Syifa Mutia Rahmania Rahmania Ramadhani, Bagus D. Regita Putri Permata Rifdatun Ni’mah Riry Sriningsih Rito Goejantoro, Rito Sifriyani, Sifriyani Siringoringo, Meiliyani Sitinjak, Jesselin Paskalis Solikhah, Arifatus Solikhatun, Solikhatun Sri Wahyuni Sri Wahyuningsih Sri Wigantono Sukamto, Ika Sumiyarsi Surya Prangga Suyitno Suyitno Syaripuddin Syaripuddin Tanur, Erwin Tutik Handayani, Tutik Uha Isnaini Vita Ratnasari Wahyujati, Mohamad Fahruli Watika, Noor Hikmah Zen, Muhammad Aldani