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All Journal Jurnal Simetris CAUCHY: Jurnal Matematika Murni dan Aplikasi Telematika : Jurnal Informatika dan Teknologi Informasi Jurnal Sains Matematika dan Statistika Jurnal Pemberdayaan Masyarakat Madani (JPMM) Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan BAREKENG: Jurnal Ilmu Matematika dan Terapan JTAM (Jurnal Teori dan Aplikasi Matematika) JURNAL SILOGISME : Kajian Ilmu Matematika dan Pembelajarannya Jambura Journal of Mathematics Contemporary Mathematics and Applications (ConMathA) Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) ELIPS: Jurnal Pendidikan Matematika MATH-EDU: Jurnal Ilmu Pendidikan Matematika Postulat : Jurnal Inovasi Pendidikan Matematika AL JABAR: Jurnal Pendidikan dan Pembelajaran Matematika Jurnal Informatika Polinema (JIP) Jurnal Bakti Dirgantara Himpunan: Jurnal Ilmiah Mahasiswa Pendidikan Matematika Jurnal Keselamatan Transportasi Jalan
Yuliati, Dian
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Identifying Significant Factors Affecting the Human Development Index in East Java Using Ordinal Logistic Regression Model Farida, Yuniar; Nurfadila, Monika Refiana; Yuliati, Dian
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 3 (2022): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i3.8301

Abstract

The achievement of human development can be reviewed from the Human Development Index (HDI), which is sourced from indicators of health, education, and state income. East Java Province is the second-most populous province in Indonesia which has a high work intensity in economic aspects and abundant natural and human resources. However, judging from the level of the human development index, East Java Province occupies the lowest position compared to other provinces on the island of Java. This study aims to identify significant factors affecting East Java's HDI using ordinal logistic regression. The data from Indonesia Statistics (Indonesian: Badan Pusat Statistik, BPS) of East Java province in 2020 includes seven variables, namely Gross Regional Domestic Product (GRDP), high school participation rate, infant mortality rate, health facilities, population density, labor force participation rate, and open unemployment rate. This study produced two ordinal logistic regression models in medium category HDI and high category HDI with a classification accuracy value of 97.37%. From this model obtained, a significant factor affecting the HDI of East Java is the participation rate of high school and health facilities.
Breast Cancer Survival Analysis Using Cox Proportional Hazard Regression and Kaplan Meier Method Farida, Yuniar; Maulida, Eka Agustina; Desinaini, Latifatun Nadya; Utami, Wika Dianita; Yuliati, Dian
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 5, No 2 (2021): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v5i2.4653

Abstract

Breast cancer is one of the malignant tumors that begins in the breast cells that develop and attack the surrounding tissues; according to World Health Organization (WHO), breast cancer is globally declared the top five killer cancers. In Indonesia, breast cancer becomes the number one killer cancer.  One of the successes in breast cancer treatment is if the cure obtained by cancer patients can be proven to have the same life expectancy as those who do not have breast cancer.This study aims to know the probability of survival of breast cancer patients and know the factors that affect breast cancer patients' survival. The data were consist of 394 medical records of breast cancer patients at Dr. Soetomo Hospital Surabaya in the period January 2018 – December 2019, with variables used, i.e., initial age of infection, clinical stage, tumor size, metastatic to other organs, type of treatment, and patient status (life or death). This study using Kaplan Meier and Cox Proportional Hazard regression methods, and the result showed that the probability of survival of breast cancer patients (with data samples) was 0.737 or 73.7%. The variables that significantly affect breast cancer patients' survival are the initial age of infection, the clinic stage, and the tumor's size. This research provides information and motivation to the community related to life expectancy, especially in breast cancer patients, to stay motivated in the healing process. In addition, this research is also used to add insight to academics, especially the department of statistics, regarding the regression of Cox Proportional Hazard in analyzing the survival of breast cancer patients.
Penerapan K-Means Clustering untuk Analisis Kondisi Lalu Lintas di Jalan Ir. H. Soekarno Surabaya Istiqomah, Nurul; Dianita Utami, Wika; Yuliati, Dian
Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) Vol. 12 No. 2 (2025): JURNAL KESELAMATAN TRANSPORTASI JALAN (INDONESIAN JOURNAL OF ROAD SAFETY)
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46447/ktj.v12i2.725

Abstract

Growth in the number of vehicles, especially in urban areas, has a significant impact on traffic density, especially during peak hours, so an approach is needed to group traffic conditions based on the volume of all types of vehicles and the degree of saturation using the K-Means Clustering algorithm. The data used are the volume of all types of vehicles and the degree of saturation obtained from the Surabaya City Transportation Agency. The clustering results show that there are 4 clusters of different traffic characteristics, such as the volume of 2-wheeled vehicles during heavy traffic conditions of more than 4700 vehicles with a degree of saturation of more than 0.45. Evaluation using the silhouette coefficient produces a value of 0.63, which means the quality of the cluster is in a medium structure. This study shows that the clustering method is effective in understanding traffic conditions, although additional features can be done to optimize the quality of the cluster.
Penerapan K-Means Clustering untuk Analisis Kondisi Lalu Lintas di Jalan Ir. H. Soekarno Surabaya Istiqomah, Nurul; Dianita Utami, Wika; Yuliati, Dian
Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) Vol. 12 No. 2 (2025): JURNAL KESELAMATAN TRANSPORTASI JALAN (INDONESIAN JOURNAL OF ROAD SAFETY)
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46447/ktj.v12i2.725

Abstract

Growth in the number of vehicles, especially in urban areas, has a significant impact on traffic density, especially during peak hours, so an approach is needed to group traffic conditions based on the volume of all types of vehicles and the degree of saturation using the K-Means Clustering algorithm. The data used are the volume of all types of vehicles and the degree of saturation obtained from the Surabaya City Transportation Agency. The clustering results show that there are 4 clusters of different traffic characteristics, such as the volume of 2-wheeled vehicles during heavy traffic conditions of more than 4700 vehicles with a degree of saturation of more than 0.45. Evaluation using the silhouette coefficient produces a value of 0.63, which means the quality of the cluster is in a medium structure. This study shows that the clustering method is effective in understanding traffic conditions, although additional features can be done to optimize the quality of the cluster.
Evaluasi Daya Terima Nugget Ayam dan Udang sebagai Pemberian Makanan Tambahan Berbasis Pangan Lokal pada Anak Stunting di Desa Soco, Kabupaten Ngawi Sunu Prawita, Widya; Umamah, Nisrina Azzah; Islamiya, Nadhifatul Ilmi; Ramasanti, Regieta; Ramadhani, Rahma; Akmal, Zuhudil; Yuliati, Dian
Jurnal Bakti Dirgantara Vol. 3 No. 1 (2026): Jurnal Bakti Dirgantara
Publisher : Universitas Dirgantara Marsekal Suryadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35968/mw4az378

Abstract

Prevalensi stunting di Kabupaten Ngawi, khususnya di Desa Soco, masih menjadi permasalahan kesehatan masyarakat yang memerlukan intervensi gizi berbasis pangan lokal yang tidak hanya bergizi tetapi juga memiliki daya terima tinggi pada anak. Salah satu kendala dalam program Pemberian Makanan Tambahan (PMT) adalah rendahnya penerimaan anak terhadap produk yang disediakan sehingga berdampak pada keberlanjutan konsumsi. Kegiatan pengabdian masyarakat ini bertujuan untuk mengevaluasi daya terima nugget ayam dan udang sebagai alternatif PMT berbasis pangan lokal yang dikembangkan sesuai preferensi anak dan kondisi masyarakat setempat. Metode yang digunakan adalah pendekatan kualitatif deskriptif melalui uji hedonik (organoleptik) terhadap lima parameter sensori, yaitu rasa, aroma, warna, tekstur, dan penampilan, dengan melibatkan delapan panelis yang terdiri dari anak stunting dan ibu pendamping. Hasil evaluasi menunjukkan bahwa sebagian besar panelis memberikan penilaian “suka” hingga “sangat suka” pada seluruh parameter, meskipun terdapat masukan terkait variasi aroma, warna, dan tekstur yang perlu disempurnakan. Temuan ini menunjukkan bahwa nugget ayam dan udang memiliki tingkat penerimaan yang baik serta berpotensi dikembangkan sebagai PMT yang terjangkau, mudah dibuat, dan kontekstual dengan kebutuhan masyarakat desa. Inovasi ini tidak hanya berkontribusi pada diversifikasi PMT lokal, tetapi juga mendukung pendekatan pengabdian partisipatif dalam upaya pencegahan stunting di tingkat komunitas.   The prevalence of stunting in Ngawi Regency, particularly in Soco Village, remains a public health concern that requires nutrition interventions based on local food resources that are not only nutritious but also highly acceptable to children. One of the main challenges in the Supplementary Feeding Program (PMT) is the low level of children’s acceptance of the provided foods, which affects the sustainability of consumption. This community service activity aimed to evaluate the acceptability of chicken and shrimp nuggets as an alternative locally based PMT developed in accordance with children’s preferences and the socio-cultural conditions of the local community. The study employed a descriptive qualitative approach through hedonic (organoleptic) testing of five sensory parameters—taste, aroma, color, texture, and appearance—involving eight panelists consisting of stunted children and their mothers. The evaluation results indicated that most panelists rated the product from “liked” to “highly liked” across all parameters, although some feedback related to aroma, color, and texture variations suggested areas for further improvement. These findings indicate that chicken and shrimp nuggets demonstrate good acceptability and have the potential to be developed as an affordable, easy-to-prepare PMT that is contextually aligned with the needs of rural communities. This innovation not only contributes to the diversification of local PMT products but also supports a participatory community service approach in efforts to prevent stunting at the community level
An Integrated K-Means++–Davies–Bouldin Index Approach for Educational Resource-Based District Clustering: A Case Study of Districts in Surabaya Subaekti, Hendrik; Hakim, Lutfi; Khaulasari, Hani; Yuliati, Dian
Jambura Journal of Mathematics Vol 8, No 1: February 2026
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjom.v8i1.35412

Abstract

Equitable distribution of educational resources is an important prerequisite to ensure that all communities benefit from human resource development. Access to education through the availability of schools and teachers at every level, plays a role in reducing the gap between regions. This study aims to group educational resources at the elementary and junior high school levels in 31 sub-districts of Surabaya City and evaluate the quality of grouping using the Davies–Bouldin Index (DBI). The analysis was carried out using secondary data from the Surabaya City Education Office which included the number of schools, teachers, and students based on education level in each sub-district. The clustering method used is K-Means++, which improves the centroid initialization process to produce more stable clustering. The results of the analysis identified three clusters, namely Development Education Areas (17 sub-districts), Elementary Focused Areas with Limited Junior High Schools (7 sub-districts), and Priority Education Areas (7 sub-districts: Rungkut, Sukolilo, Wonokromo, Sukomanunggal, Genteng, Kenjeran, and Krembangan). The quality of the grouping was validated with a DBI value of 0.752, which indicates a good cluster separation These findings can directly inform the Surabaya City Government in formulating targeted policies for educational equity, especially in teacher placement, student quota adjustment, and infrastructure development.
Tech & Trash: Inovasi TPA Berbasis Rocket Stove dan Pengelolaan Sampah UMKM dalam Mewujudkan Lingkungan Bersih di Desa Soco, Kab. Ngawi Reviana, okta; Ilmia, Mara Nailatul; Yuliati, Dian; Jannah, Rizka Rikhatul; Irsyadia, Annafi; Iftakhdianti, Nazwa Putri; maghfur, M ivo
Jurnal Bakti Dirgantara Vol. 3 No. 1 (2026): Jurnal Bakti Dirgantara
Publisher : Universitas Dirgantara Marsekal Suryadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35968/7k5jmn19

Abstract

Permasalahan pengelolaan sampah di Desa Soco, Kecamatan Jogorogo, Kabupaten Ngawi ditandai oleh ketiadaan Tempat Pembuangan Akhir (TPA) tingkat desa, rendahnya kesadaran masyarakat, serta praktik pembakaran terbuka yang berdampak pada kualitas lingkungan dan kesehatan. Kegiatan pengabdian masyarakat ini bertujuan untuk mengimplementasikan dan mengevaluasi efektivitas TPA alternatif berbasis teknologi Rocket Stove sebagai solusi pengelolaan sampah ramah lingkungan yang melibatkan partisipasi aktif masyarakat dan pelaku UMKM. Metode yang digunakan adalah deskriptif kualitatif dengan pendekatan partisipatif, melalui observasi lapangan, wawancara dengan warga dan pelaku UMKM, serta pemantauan kondisi lingkungan sebelum dan sesudah intervensi. Program dilaksanakan melalui pembangunan Rocket Stove, penyediaan fasilitas tempat sampah di area UMKM, serta edukasi pemilahan dan pengelolaan sampah. Hasil kegiatan menunjukkan adanya penurunan volume sampah berserakan di sekitar UMKM dari rata-rata 5 kg/hari menjadi 3 kg/hari, berkurangnya praktik pembakaran terbuka, serta meningkatnya kesadaran masyarakat dalam membuang dan mengelola sampah secara lebih bertanggung jawab. Selain dampak teknis, kegiatan ini memperkuat kolaborasi antara mahasiswa, perangkat desa, dan masyarakat dalam pengelolaan lingkungan. Inovasi TPA berbasis Rocket Stove terbukti berpotensi sebagai model teknologi tepat guna yang aplikatif, berkelanjutan, dan dapat direplikasi pada wilayah pedesaan dengan karakteristik serupa.   Waste management problems in Soco Village, Jogorogo District, Ngawi Regency are characterized by the absence of a village-level landfill, low community awareness, and the widespread practice of open burning, which negatively affects environmental quality and public health. This community service program aimed to implement and evaluate the effectiveness of an alternative landfill based on Rocket Stove technology as an environmentally friendly waste management solution involving active participation from the community and micro, small, and medium enterprises (MSMEs). A qualitative descriptive method with a participatory approach was employed, using field observations, interviews with residents and MSME actors, and environmental condition monitoring before and after the intervention. The program consisted of constructing a Rocket Stove facility, providing waste bins in MSME areas, and conducting education on waste segregation and management. The results showed a reduction in scattered waste around MSME locations from an average of 5 kg/day to 3 kg/day, a decrease in open burning practices, and improved community awareness regarding responsible waste disposal and management. Beyond technical outcomes, the program strengthened collaboration among students, village authorities, and local residents in environmental management efforts. The Rocket Stove–based alternative landfill demonstrates strong potential as an appropriate, sustainable, and replicable technology model for waste management in rural areas with similar characteristics.
Co-Authors AA Sudharmawan, AA Abdulloh Hamid Abdulloh Hamid Achmad Fachril Yusuf Ababil Ahmad Hanif Asyhar Akmal, Zuhudil Aris Fanani Asri Sawiji Darmayani, Mariel Tania Desinaini, Latifatun Nadya Dianita Utami, Wika Farizy, Haffif Al Farmita, Mayandah Hani Khaulasari Hunowu, Fairuz Darell Azariah Iftakhdianti, Nazwa Putri Ilmia, Mara Nailatul Irsyadia, Annafi Irzayana, Fitria Salsabilla Islamiya, Nadhifatul Ilmi Jannah, Rizka Rikhatul Karan, Achmad Mustofa Lestari, Dyah Mumpuni Indah Palupi Asih Lutfi Hakim maghfur, M ivo Maulana, Achmad Resnu Maulida, Eka Agustina Moh. Aditya Sirojul Hilmi Nur Aulia, Shofinatul Wahdah Nurfadila, Monika Refiana Nurissaidah Ulinnuha Nurul Istiqomah Panreshma Rizkha Ambadar Pradita, Mutiea Ira Putri, Daffania Tsabitah Zuhra Putri, Ingrid Amalia Rahma Ramadhani Rakhmania, Nadin Ramasanti, Regieta Reviana, okta Rizalatul Qomaria Romdloni, Ro’iqotul Fathiyyah Rozzy, Fahrul Salsabila Sani, Puteri Permata Sari, Dian Candra Rini Novita Sharenada Norisdita Wahyudi Subaekti, Hendrik Suci Rahmawati Suci Rahmawati, Suci Sunu Prawita, Widya Sutini Sutini Sutini, Sutini Umamah, Nisrina Azzah Wika Dianita Utami Yuniar Farida Yusi, Suyesti