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Jurnal Kajian Matematika dan Aplikasinya
Published by Universitas Negeri Malang
ISSN : -     EISSN : 27227650     DOI : -
Core Subject : Education,
Mathematics
The aim of this journal publication is to disseminate research results and new theories that have been achieved in the area of mathematics. Jurnal Kajian Matematika dan Aplikasinya (JKMA) particularly focuses on the main issues in the development of the sciences of mathematics, in the fields of algebra, analysis, applied mathematics, combinatorics, computational sciences, geometry, and statistics.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 1, No 1 (2020): July" : 6 Documents clear
TWO PHASE HEURISTIC ALGORITHM (TPHA) PADA MULTIPLE TRAVELLING SALESMAN PROBLEM (MTSP) DAN IMPLEMENTASI PROGRAMNYA Rahma Try Iriani; Sapti Wahyuningsih; Darmawan Satyananda
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p10-17

Abstract

Multiple Traveling Salesman Problem (MTSP) is one variant of Traveling Salesman Problem (TSP) which involves several salesmen in making a trip to visit several customers. In this article, the Two-Phase Heuristic Algorithm (TPHA) is used to solve MTSP problems. The algorithm classifies customers into several regions using the K-Means algorithm, which will then find a route solution for each region using a genetic algorithm. The MTSP problems that were resolved using TPHA were implemented into the Borland Delphi 7.0 programming language. Application testing was conducted using 21, 32, and 46 point cases.
MODEL FUNGSI TRANSFER MULTI INPUT DALAM PERAMALAN PENERIMAAN PAJAK HOTEL KOTA MALANG TAHUN 2019 Alma Perwitasari; Nur Atikah
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p1-9

Abstract

A transfer function is one of the models contained in the time series. The multi-input transfer function is used to establish a simple model derived from the relationship between input and output series. The transfer function model will be applied to the forecasting of hotel tax revenue (Y) into an output series with the input series variables affected by the number of sold rooms (X^a), the number of staying guests (X^b), and the average of the guest’s staying time (X^c). The purpose of this study is to anticipate the failure of the realization of the hotel tax revenue target in Malang City and to determine the results of the next forecasting. The result of this study is the multi-input transfer function, Y_t = Y_(t-1) + 0.0052294*X^b_(t-8) + 573.32180*X^c_t - 0.0052294*X^b_(t-9) - 573.32180*X^c_(t-1) + 1.18967*a_t. Based on this function, the forecasting nearly coincides with the actual data indicated by the graph of forecasting result nearly coincides with the graph of the actual data. Thus, this multi-input transfer function could be suggested to be used in forecasting Malang City hotel tax revenues from January 2019 to May 2019.
PRESERVING SUBINJECTIVITY DOMAIN OF A MODULE Mohammad Agung; Indah Emilia Wijayanti; Desi Rahmadani
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p37-41

Abstract

An ????-module ???? is said to be indigent if its subinjectivity domain consists of only an injective module. In this paper, we study some properties of the indigent module. We give some examples of rings which have an indigent module. We also prove that subinjectivity domain of a module is preserved and reflected under equivalence.
ESTIMASI PARAMETER REGRESI ZERO-INFLATED NEGATIVE BINOMIAL DENGAN METODE ALGORITMA EXPECTATION MAXIMIZATION (EM) (Studi Kasus: Penyakit Difteri di Jawa Barat Tahun 2016) Dimas Adi Pradana; Trianingsih Eni Lestari
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p18-26

Abstract

This study aims to determine the parameter estimation method of the ZINB model with the Expectation Maximization (EM) algorithm, and also to overcome the case of overdispersion caused by excess zeros in diphtheria cases in West Java in 2016 and to know the factors that significantly influence. Based on the results of the analysis, the factors that significantly influence the number of diphtheria cases in West Java Province in 2016 for the data count are the percentage of DPT immunization (X1), the percentage of residents who have access to safe drinking water (X3) and the percentage of TPM that meet sanitary hygiene requirements (X6). Whereas for zero-inflation data is the percentage of residents who have access to decent drinking water (X3), number of puskesmas (X5) and the percentage of TPM that meet sanitary hygiene requirements (X6).
ANALISIS KESTABILAN MODEL EPIDEMI SEIVR PADA PENYAKIT HEPATITIS B Nurul Subahtul; Toto Nusantara
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p27-32

Abstract

In this study, the SEIVR epidemic model was used to analyze the stability of the spread Hepatitis B based on data obtained from the 2016 RI Health Data of East Java Province. In analyzing the model there are several procedures used, namely find the equilibrium point, analyzing the stability of the equilibrium point, find the basic reproduction number (R_0), and the last one doing the simulation based on the data obtained using the Maple17 program. Based on the research that has been done, two equilibrium points are obtained, namely the disease-free equilibrium point and endemic equilibrium point. If the reproduction number R_0<1 then the equilibrium point is stable asymptotically local, and if R_0>1 then the endemic equilibrium point is stable asymptotically local. For the cases of Hepatitis B based on data in the Province of East Java obtained basic reproduction numbers R_0 = 8,648215155x10^(-11) which means Hepatitis B is no longer endemic at any given time.
APLIKASI ROF TOTAL VARIATION MENGGUNAKAN SPLIT BREGMAN UNTUK MENGURANGI NOISE PADA GAMBAR PEMBULUH DARAH KAPILER DALAM JARI MANUSIA Mochammad Hafiizh; Vita Kusumasari; Defri Ahmad
Jurnal Kajian Matematika dan Aplikasinya (JKMA) Vol 1, No 1 (2020): July
Publisher : UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um055v1i12020p33-36

Abstract

An image might have noises that could lose important information on that image. As a consequence, we need a consistent method to reduce the noise without erasing the important information. In this paper, ROF Total Variation using Split Bregman is applied to the image to reduce the noise. We choose the monochrome image of the human capillaries on the fingertips.

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