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All Journal EKSAKTA: Journal of Sciences and Data Analysis JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA BAREKENG: Jurnal Ilmu Matematika dan Terapan Delta: Jurnal Ilmiah Pendidikan Matematika Building of Informatics, Technology and Science Refleksi Pembelajaran Inovatif Jurnal Statistika dan Aplikasinya Parameter: Journal of Statistics Enthusiastic : International Journal of Applied Statistics and Data Science Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Bulletin of Social Informatics Theory and Application Emerging Statistics and Data Science Journal
Primandari, Arum Handini
Universitas Islam Indonesia
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : Bulletin of Social Informatics Theory and Application

 1 
Seismic analysis using maximum likelihood of gutenberg-richter Primandari, Arum Handini; Khotimah, Khusnul
Bulletin of Social Informatics Theory and Application Vol. 1 No. 1 (2017)
Publisher : Association for Scientific Computing Electrical and Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/businta.v1i1.23

Abstract

An earthquake is one of catastrophe which often claim numerous lives and cause great damage to infrastructure. Multiple studies from various field have been conducted in order to make a precise prediction of earthquake occurrence, such as recognizing the natural phenomena symptoms leading to the shaking and ground rupture. However, up till now there is no definite method that can predict the time and place in which earthquake will occur. By assuming that the number of earthquake follow Gutenberg-Richter law, we work b-value derived using Maximum Likelihood Method to calculate the probability of earthquake happen in the next few years. The southern sea of D.I. Yogyakarta was divided into four areas to simplify the analysis. As the result, in the next five years the first and second area have high enough probability (>0.3) to undergo more than 6.0-magnitude earthquake.
Job applicants clustering using self-organizing map Primandari, Arum Handini; Ikasakti, Nur Aini
Bulletin of Social Informatics Theory and Application Vol. 1 No. 2 (2017)
Publisher : Association for Scientific Computing Electrical and Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/businta.v1i2.28

Abstract

Yogyakarta Government through Directorate of Manpower and Transmigration (Disnakertrans) have been canvassing people looking for job. An employment program was provided by Disnakertrans to allow job applicants meet companies. This research was carried out to identify educational background of applicants, in order to obtain the suitable worker. One of the ways to identify educational background is by district clustering in Yogyakarta. Clustering method is employed to reveal the characteristic of educational quality in every district in Yogyakarta. Clustering is a grouping method which is done by minimalize the characteristic among class members and minimalize the characteristic among clusters. This research used Self Organizing Maps to grouping districts in Yogyakarta according to educational background of its job seekers. The clustering results 3 clusters: 6 districts belong to cluster 1, 4 districts belong to cluster 2, and 4 districts belong to cluster 3. Then, Yogyakarta map is used to visualize the result of district clustering.
Co-Authors Achmad Fauzan, Achmad Ayundyah Kesumawati Dita Anies Munawwaroh Fadlilah, Dhika Nurul Hanifah, Salsabila Ikasakti, Nur Aini Iskandar , Shafa Amalia Kesumawati, Ayundyah khusnul khotimah Kusuma Arum, Widya Larasati, Kinanti Dhea Lestari, Indri Fauzi Mustika Noor Mifrahi Nabilla Wardah Bonitta Nur Faizin Perihatini, Denisha Intan Rachmatia, Baiq Wita Thalib, Achmad Kurniansyah