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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi AdMathEdu : Jurnal Ilmiah Pendidikan Matematika, Ilmu Matematika dan Matematika Terapan Jambura Journal of Mathematics EIGEN MATHEMATICS JOURNAL Indonesian Journal of Mathematics Education Jurnal Abdi Insani MATHunesa: Jurnal Ilmiah Matematika Fraction: Jurnal Teori dan Terapan Matematika Jurnal Matematika Integratif Jurnal Abdimastek (Pengabdian Masyarakat Berbasis Teknologi) Jurnal Pengabdian Masyarakat Nasional
Baiq Desy Aniska Prayanti
Universitas Bangka Belitung Kampus Terpadu Balunijuk, Merawang, Bangka, Kep. Bangka Belitung
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Transportation

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Journal : EIGEN MATHEMATICS JOURNAL

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Implementation of Fuzzy Logic Using The Tsukamoto Method to Forecast Gold Price in Indonesia Alviari, Irfaliani; Monika, Ines; Sarina, Sarina; Saputra, Lianda; Prayanti, Baiq Desy Aniska
Eigen Mathematics Journal Vol 8 No 1 (2025): June
Publisher : University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/emj.v8i1.251

Abstract

In the economy, gold is a commodity that has an important role. This indicates that gold is often used as an investment for investors and people involved in the business world. This research aims to determine how accurate gold price forecasting is using the Tsukamoto fuzzy method in Indonesia. Gold prices are influenced by several factors. These factors include exchange rates, interest rates, inflation, etc. Based on research results, fuzzy Tsukamoto determined the price of gold with a forecasting truth value of 99.91611654% and a MAPE value of 0.083883458%. The conclusion of this research is forecasting gold prices using the Tsukamoto fuzzy method is considered very good.
Modeling of the Spread of Malaria in the Bangka Belitung Islands Province Using the SEIR Method Halim, Nikken; Putri, Marwah Hotimah Nada; Alviari, Irfaliani; Luthfiyah, Fadillah; Septiani, Hera; Prayanti, Baiq Desy Aniska
Eigen Mathematics Journal Vol 7 No 1 (2024): June
Publisher : University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/emj.v7i1.189

Abstract

Malaria is an infectious disease caused by plasmodium through the bite of the Anopheles sp. female mosquito. (Roach, 2012). Malaria disease which hit the Bangka Belitung Islands Province in 2005 experienced a spike, reaching 36,901 people out of 981,573 residents and claimed the lives of 12 local residents. In 2011, the Bangka Belitung Islands Province was declared an endemic area for malaria. This research aims to model and interpret the spread of malaria using the SEIR model and predict the spread of malaria using parameter estimates. The steps in analyzing the SEIR model on the spread of malaria are making assumptions, forming a SEIR model, determining the equilibrium point and analyzing the stability of the equilibrium point, determining the basic reproduction number, and carrying out a simulation of the SEIR model that has been obtained. The SEIR model is classified into 4 classes, namely Susceptible (susceptible individuals), Exposed (individuals who have symptoms), Infected (infected individuals), and Recovered (recovered individuals). The data used in this research is data on the number of Susceptible, Exposed, Infected, and Recovered malaria cases in 2022 obtained from the Bangka Belitung Islands Provincial Health Service. The SEIR mathematical model is used to calculate the equilibrium point and basic reproduction number. Based on the SEIR model simulation results, it was found that the susceptible population decreased from the 0th month to the 48th month. As for the exposed population, there were 9,623 people in month 0, but in this condition the population decreased drastically per month. Furthermore, for the infected population there were 129 people in month 0, but in this condition the number of infected decreased drastically per month along with the decrease in the exposed population. For individuals who recovered, there was a increase from the 0th month to the 48th month.
Co-Authors Afrizal, Aidil Adrianda Agita Alviari, Irfaliani Amalya, Diska Amelia, Ririn Apriyani, Putri Arliansyah, Ahmad Desy Yuliana Dalimunthe Desy Yuliana Dalimunthe, Desy Yuliana Endraswari, Putri Mentari Fahri Setiawan Fahria, Izma Felindo Fergiawan Halim, Nikken Hartati, Lasmi Humairah, Reni I Gede Adhitya Wisnu Wardhana Ineu Sulistiana Ineu Sulistiana, Ineu Izma Fahria JANAH, NURUL Kustiawan, Elyas Lutfiyaturrohmah, Khilma Luthfiyah, Fadillah MAMIKA UJIANITA ROMDHINI MAXRIZAL Maxrizal Maxrizal Maxrizal Monika, Ines Nurhaeka Tou Pahmi Pramita, Agnes Putra, Sapta Aliansyah Putri, Marwah Hotimah Nada Ririn Amelia Sakti, Adam Indra Saputra, Lianda Sarina Sarina Selviana, Nila Septia, Hera Septiani, Hera Silaban, Yabes Sentosa Situmorang, Josep Irwanda Sri Lestari Wulandari Supangadi, Egita Riyanti Tou, Nurhaeka Ulfa Ulfa Wahyuni, Dhiti Yuandary, Fhatur Rauzy Zeleansi, Zizi