Article Per Year (5 Year)
p-Index From 2021 - 2026
4.823
P-Index
This Author published in this journals
All Journal Jurnal Ilmiah Kursor Journal of Natural Sciences and Mathematics Research Jurnal Matematika: MANTIK Unisda Journal of Mathematics and Computer Science (UJMC) Zeta - Math Journal DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Jurnal Abdi: Media Pengabdian Kepada Masyarakat Contemporary Mathematics and Applications (ConMathA) Didaktika: Jurnal Pemikiran Pendidikan Tensor: Pure and Applied Mathematics Journal Jurnal Aplikasi Teknologi Informasi dan Manajemen (JATIM) NERO (Networking Engineering Research Operation) Journal of Studies in Academic, Humanities, Research, and Innovation
Tony Yulianto
Universitas Islam Madura
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Social Sciences Other

Published : 53 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : contemporary mathematics and applications conmatha

 1 
Implementation of K-Means and Single Linkage on Types of Disabilities in East Java Province Putri Amaningsih; Tony Yulianto; Faisol; Rica Amalia
Contemporary Mathematics and Applications (ConMathA) Vol. 6 No. 2 (2024)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/conmatha.v6i2.58513

Abstract

The high number of people with disabilities is one of the problems faced by the Indonesian government, especially in Java Province. After West Java Province, East Java Province is in second place as the province with the highest rate of people with disabilities in Indonesia. Disabled people are people with physical disabilities such as not being able to walk, not being able to talk, not being able to see, and so on. The aim of this research is to group districts in East Java Province based on types of disabilities with the hope of facilitating activities in fulfilling the rights of people with disabilities in East Java Province. The grouping was carried out in order to determine the characteristics of each cluster using so that the optimal k-means method was used for clustering using the Euclidean distance method with cluster 1 in 29 districts and cluster 2 in 9 districts. The most optimal single linkage uses the Euclidean distance method with cluster 1 having 8 districts and cluster 2 having 30 districts. From the results of the validity index values, it was found that the single linkage method had the smallest validity value of the icdrate method compared to the k-means method.
Application of the ARIMA-GARCH Model for Forecasting Indonesia's Monthly Inflation Rate Anisa; Yudistira, Ira; Yulianto, Tony
Contemporary Mathematics and Applications (ConMathA) Vol. 7 No. 1 (2025)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/conmatha.v7i1.60263

Abstract

Inflation is one of the important aspects that is used as a benchmark to see economic growth and economic conditions in each country. Inflation has resulted in increasing public expenditure in meeting basic needs. Inflation must be controlled to maintain the economic stability of a country, including Indonesia. Therefore, there is a need for a model that can forecast the inflation rate in Indonesia. The aim of this research is to create a model that can predict future inflation levels so that it can help the government in determining policies related to controlling inflation in Indonesia. The data used is monthly inflation data in Indonesia for 19 years from March 2007- October 2023 in percentage form. The forecasting model used in this study is the ARIMA-GARCH model. The ARIMA model is a time series model used to forecast future data based on past data. While GARCH is a time series model used to overcome heteroscedasticity in the ARIMA model. Inflation data will be modeled using the ARIMA model and then continued by modeling the residuals using the GARCH model if heteroscedasticity occurs in the ARIMA model residuals. Based on data analysis that has been done, the best model for inflation forecasting cases in Indonesia is the ARIMA (2,0,2) - GARCH (0,1) model with a MAPE value of 17.78%.
Determining Optimal Hierarchical Clustering by Combining Needleman Wunsch and Jukes Cantor Algorithms in Tuberculosis (TB) Disease Clustering Hildatul Anizah; Tony Yulianto; Kuzairi; Ira Yudistira; Amalia, Rica
Contemporary Mathematics and Applications (ConMathA) Vol. 7 No. 1 (2025)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/conmatha.v7i1.64172

Abstract

Tuberculosis (TBC) is an infectious disease affecting the respiratory system, caused by the bacterium Mycobacterium tuberculosis. Tuberculosis (TBC) remains a global concern, and to date, no country is completely free from TB. This disease continues to be one of the leading causes of mortality. Therefore, it is essential to categorize the spread of TBC. The percentage of identity in genetic codes will reveal the proportion of mutations. The percentage of identity in genetic codes will demonstrate that, although the symptoms caused by a disease may be quite similar, the protein sequences are not necessarily the same. In this study, the researchers employed the Hierarchical Clustering method, integrating the Needleman-Wunsch and Jukes-Cantor algorithms, resulting in two groups. The first group consists of 9 interconnected rows, while the second group consists of 7 interconnected rows.
Dimensi Partisi pada Graf Hasil Operasi Korona Tingkat-k Amalia, Rica; Ummi Nur Yatun Hasanah; Faisol; Tony Yulianto; Kuzairi
Contemporary Mathematics and Applications (ConMathA) Vol. 6 No. 1 (2024)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/conmatha.v6i1.54748

Abstract

Graph theory is one of the subjects in Discrete Mathematics that have long been known and are widely applied in various fields. The topics that are often discussed in graph theory include labeling, coloring, chromatic numbers, metric dimensions, and partition dimensions. Partition dimensions are obtained by grouping all the vertices on the graph into a number of partition classes, then determine the distance of all vertices to each partition class to get a representation. Partition class which representations have different coordinate vectors is called resolving partition. The minimum cardinality of resolving partition is called partition dimensions of the graph. The purpose of this study is to determine the partition dimensions of level corona operation graphs which are GʘkPm, GʘkCm and GʘkKm, where G, Pm, Cm and Km are connected non trivial graph, path graph, circle graph and complete graph respectively, and any integer k≥1.
Co-Authors Amalia, Rica Anekawati, Anik Ani Alfiya Fahad Anisa Anisa Anisa A’lailliyyin1, A’lailliyyin Buhari Buhari Emi Yunita Fachry Abda El Rahman Faisol Faisol Faisol Faisol, Faisol Fathorrozi Ariyanto Fatimatus Zahroh Fauzan . Firdausiyah Firdausiyah Hasan Hasan Hasanah, Sarmiatul Ilmiyatus Solehah Ira Yudistira Ira Yudistira Jamilatul Isti’adah ku, Kuzairi Kuzairi Lilik Safitri M. Fariz Fadillah Mardianto Mahrus Mahrus, Mahrus Moch. Haikal Moh. Yaqin Mohamad Tafrikan Mufarrohah, Mufarrohah Muhammad Luthfi Muhammad Rivai Noer Azizah Nur Jannah Nurfitriyah, Luluk Nurmadhani, Nadya Nurul Hasanah Nurul M’rifatil Laila Putri Amaningsih Qurrotul Aini Rahmah, Alfiana Faizzatur Rica Amalia Rica Amalia Rica Amalia Riyatun Hasanah Sakinun Na'malia Sari, Iin Nofita Siti Amiroch, Siti Siti Anisah Siti Romlah Sofiyanto, Sofiyanto Sofyan, Moh. Sri Suryanti Suci Rohani Tengku Riza Zarzani N Ulfaniyah, Nur Ita Ummi Nur Yatun Hasanah Yaqin, Moh Yudistira, Ira Yulianto, Toni Zaifullah, Zaifullah Zainuddin, Moh Zuhrotul Hasanah Zulaikha, Layla Imroatu