ISSN 2086-0382 E-ISSN 2477-3344 CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 CAUCHY Vol. 7 No. 1 Pages: 1 – 151 Malang November 2021 ISSN 2086-0382 E-ISSN 2477-3344 πœ’ CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 CAUCHY is a mathematical journal published twice a year on May and November by the Mathematics Department, Faculty of Science and Technology, Universitas Islam Negeri Maulana Malik Ibrahim Malang. This journal includes research papers, literature studies, analysis, and problem solving in Mathematics (Algebra, Analysis, Statistics, Computing and Applied Mathematics). EDITORIAL BOARD Editor in Chief : Dr. Sri Harini, M.Si, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia. Managing Editor : Mohammad Jamhuri, M.Si, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia. Juhari, M.Si, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia. 1. Editorial Board : Prof Hadi Susanto, Department of Mathematical Sciences, University of 2. Essex and Department of Mathematics of Khalifa University, United Kingdom Mario Rosario Guarracino, Computational and Data Science Laboratory High Performance Computing and Networking Institute National Research Council of Italy, Italy Kartick Chandra Mondal, Jadavpur University, Salt Lake Campus, India Rowena Alma L. Betty, University of the Philippines Diliman, Philippines Subanar Seno, Gadjah Mada University, Indonesia Toto Nusantara, State University Of Malang, Indonesia Edy Tri Baskoro, Institut Teknologi Bandung, Indonesia Eridani Eridani, Airlangga University, Indonesia Abdul Halim Abdullah, University of Technology Malaysia, Malaysia Kusno, University of Jember, Indonesia Slamin, University of Jember, Indonesia Riswan Efendi, UIN Sultan Syarif Kasim Riau, Indonesia Arief Fatchul Huda, UIN Sunan Gunung Djati Bandung, Indonesia Usman Pagalay, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia Abdussakir, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia javascript:openRTWindow('http://ejournal.uin-malang.ac.id/index.php/Math/about/editorialTeamBio/272712') CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 EDITORIAL BOARD Ari Kusumastuti, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia Fachrur Rozi, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia Elly Susanti, Universitas Islam Negeri Maulana Malik Ibrahim Malang, Indonesia Assistant Editor : Mohammad Nafie Jauhari, M.Si, Maulana Malik Ibrahim State Islamic University of Malang, Indonesia. Editorial Office Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang Gajayana st. 50 Malang, East Java, Indonesia 65144 Phone (+62) 81336397956, Faximile (+62) 341 558933 e-mail: cauchy@uin-malang.ac.id CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 FOCUS AND SCOPE CAUCHY-Jurnal Matematika Murni dan Aplikasi is a mathematical journal published twice a year in May and November by the Mathematics Department, Faculty of Science and Technology, Maulana Malik Ibrahim State Islamic University of Malang. We we lc om e a u t h or s for original articles (research), review articles, interesting case reports, special articles illustrations that focus on the Mathematics Pure and Applied. Subjects suitable for publication include, but are not limited to the following fields of: 1. Actuaria 2. Algebra 3. Analysis 4. Applied 5. Computing 6. Econometry 7. Statistics CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 INDEXING AND ABSTRACTING CAUCHY-Jurnal Matematika Murni dan Aplikasi has been covered (indexed and abstracted) by following services: 1. DOAJ - (2016-,)(https://doaj.org/toc/2477-3344) 2. D i m e n s i o n s 3. Moraref - (2015-,)-(http://moraref.or.id/index.php/browse/index/36) 4. OneSearch Indonesia - (2015-,)-(http://onesearch.id/Search/Results?filter[]=repoId:IOS2732) 5. Mendeley - (2013-,)-(https://www.mendeley.com/groups/5034091/cauchy/papers/) 6. Indonesian Scientific Journal Database (ISJD) - (2013-,)-(http://isjd.pdii.lipi.go.id/index.php/Direktori- Jurnal.html) 7. Google Scholar - (2009-,)-(https://scholar.google.co.id/citations?hl=en&view_op=list_works&gmla=AJsN- F6OmoFBk7Q0o2Q-9- XUIMca1zI8OZ9Lp2EhCtubhL9dCisxNYH9sAiEAU0g0UDT8tyM6Jk3Z666Zu46VRsBYZ6Vjc2a_w&user=dr K-5HkAAAAJ) 8. IPI - (2009-,)-(http://id.portalgaruda.org/?ref=browse&mod=viewjournal&journal=5272) http://moraref.or.id/index.php/ http://onesearch.id/Search/Results http://www.mendeley.com/groups/5034091/cauchy/papers/ http://isjd.pdii.lipi.go.id/index.php/ http://id.portalgaruda.org/ CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 TABLE OF CONTENTS Genetic Algorithm for Variable Selection and Parameter Optimization in SVM and Fuzzy SVM for Colon Cancer Microarray Classification ..................................... 1 – 12 A Combination of Generalized Linear Mixed Model and LASSO Methods for Estimating Number of Patients Covid 19 in the Intensive Care Units .................. 13 – 21 Inclusion Properties of The Homogeneous Herz-Morrey Spaces With Variable Exponent ....................................................................................................................................... 22 – 27 Sentiment Analysis on Government Performance in Tourism During The COVID- 19 Pandemic Period With Lexicon Based ........................................................................ 28 – 39 Optimal Prevention and Treatment Control on SVEIR Type Model Spread of COVID-19 ...................................................................................................................................... 40 – 48 Analysis of Landing Airplane Queue Systems at Juanda International Airport Surabaya ....................................................................................................................................... 49 – 63 On Rainbow Vertex Antimagic Coloring of Graphs: A New Notion .............................. 64 – 72 The Confidence Interval of the Estimator of the Periodic Intensity Function in the Presence of Power Function Trend on the Nonhomogeneous Poisson Process .......................................................................................................................................................... 73 – 83 On the Modification of Newton-Secant Method in Solving Nonlinear Equations for Multiple Zeros of Trigonometric Function ............................................................... 84 – 96 Supplier Selection Analysis Using Minmax Multi Choice Goal Programming Model .............................................................................................................................................. 97 – 104 Spline Nonparametric Regression to Analyze Factors Affecting Gender Empowerment Measure (GEM) in East Java ................................................................... 105 – 117 Modeling Length of Hospital Stay for Patients With COVID-19 in West Sumatra Using Quantile Regression Approach ................................................................................ 118 – 128 The Ring Homomorphisms of Matrix Rings over Skew Generalized Power Series Rings ............................................................................................................................................... 129 – 135 CAUCHY Jurnal Matematika Murni dan Aplikasi Volume 7, Issue 1, November 2021 ISSN : 2086-0382 E-ISSN : 2477-3344 TABLE OF CONTENTS Local HΓΆlder Regularity of Weak Solutions for Singular Parabolic Systems of p- Laplacian Type ............................................................................................................................ 136 – 141 A Study of Count Regression Models for Mortality Rate .................................................. 142 – 151