International Journal of Mathematics, Statistics, and Computing
International Journal of Mathematics, Statistics, and Computing (IJMSC) is an official journal of the Communication in Research and Publications (CRP) and publishes original research papers that cover the theory, practice, history, methodology or models of Mathematics, Statistics, and Computing (MSC). IJMSC will act as a platform to encourage further research in Mathematics, Statistics, and Computing, theory and applications. The rapid development of science and technology has had a significant impact on various aspects of human life, including in the fields of economy, education, culture and government. The positive impacts of science and technology include facilitating access to information and communication, accelerating production and service processes, as well as providing new business and investment opportunities. Mathematics, statistics, and computer science have a very important role for the advancement of science and technology. Among them are as a basis for computer programming, basic calculations in the development of modern tools, can solve a problem even with big data. The mission of the International Journal of Mathematics, Statistics, and Computing (IJMSC) is to enhance the dissemination of knowledge across all disciplines in theory, practice, history, methodology or models of Mathematics, Statistics, and Computing (MSC). The above discipline is not exhaustive, and papers representing any other social science field will be considered. The IJMSC particularly encourage manuscripts that discuss the latest research findings or contemporary research that can be used directly or indirectly in addressing critical issues and sharing of advanced knowledge and best practices in Mathematics, Statistics, and Computing (MSC). The essential but not exclusive, audiences are academicians, graduate students, researchers, policy-makers, regulators, practitioners, and others interested in business, management, economics, and social development studies. For ensuring a wide range of audiences, this journal accepts only the articles in English. The scope of mathematics are: Algebra, Applied Mathematics, Financial Mathematics, Approximation Theory, Combinatorics, Computing in Mathematics, Operations Research Methodology, Discrete Mathematics, Mathematical Physics, Geometry and Topology, Logic and Foundations of Mathematics, Number Theory, Numerical Analysis, and other relevant matters. The scope of statistics are: Probability Theory, Central Limit Theorem Computation, Sample Survey, Statistical Modeling, Statistical Theory, Computational Statistics, Data Sciences, Actuarial Sciences, Regression Models, Time Series Models, and other relevant matters. The scope of computing are: Algorithms and Data Structures, Computer Architecture, Software Engineering, Artificial Intelligence and Robotics, Human and Computer Interaction, Informatics Organizations, Programming Languages, Operating Systems and Networks, Databases, Computer Graphics, Computing Science, BioInformatics, Information Technology, and other relevant matters.
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54 Documents
<![CDATA[Application of Pure Birth to the Phenomenon of Covid-19 Infected Cases in Indonesia with A Time Interval (0, 24) Hours from June to September 2020: Application of Pure Birth to the Phenomenon of Covid-19 Infected Cases in Indonesia with A Time Interval (0, 24) Hours from June to September 2020 ]]>
<![CDATA[Irmansyah, Athaya Zahrani]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.3
<![CDATA[Since the emergence of the 2019 novel coronavirus (2019-nCoV) in Wuhan City, China, in 2019, many countries in the world have been infected with the virus with very serious cases. This has caused a slump, especially for Indonesia, with a lower-middle-class society of 115 million people or 45% of the total population. The virus's rapid spread through droplets resulted in the Indonesian government implementing a lockdown called Large-scale Social Restrictions within months. This system is an effort to break the chain of virus spread. A pure birth process can be called a stochastic process with a continuous parameter space and a discrete state space. This research will focus on the application of the Pure Birth Process, which is expected to provide scientific studies on Covid-19 in Indonesia, become a new reference for the development of mathematics, and provide information on research results so that they can be used in policymaking to overcome and overcome the spread of Covid-19. 19. At the end of this study, it was known that the spread of Covid-19 in Indonesia was very drastic, which had a rate of increase in cases as big as a person/hour or person/day, which is a very significant increase. Based on calculations using Pure Birth, it is hoped that it can be used in policymaking for the government and the community to overcome and overcome the spread of Covid-19.]]>
<![CDATA[Analysis Of Unemployment Clusters In Indonesia Using The Self Organizing MAP Method: Analysis Of Unemployment Clusters In Indonesia Using The Self Organizing MAP Method ]]>
<![CDATA[Gunawan, Chairani]]>;
<![CDATA[Sirait, Haposan]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.4
<![CDATA[Unemployment is a situation where someone is not working or is trying to find a job but unable to find work. The spread of unemployment in Indonesia has different characteristics in each region, so it is necessary to classify the unemployed so that each government policy program can be carried out in a more focused and directed manner. This study discusses cluster analysis of unemployment using the Self Organizing Map (SOM) method in classifying the unemployed in Indonesia in 2020. The SOM method is able to show dominant patterns and variables in clusters. The variables used in this study consisted of school enrollment rates, average length of schooling, labor force participation rates, and the percentage of the population using computers. The results of this study formed 3 unemployment rate clusters with cluster 1 being a low unemployment group consisting of 144 districts/cities, cluster 2 with a medium level consisting of 287 districts/cities, and cluster 3 with a high level consisting of 83 districts/cities. The grouping using the SOM method on district/city unemployment data in Indonesia is good because it has a minimum standard deviation ratio of 0.529.]]>
<![CDATA[Community Readiness for the Use of the Cash on Delivery (COD) Application Without a Marketplace Using an SPSS-based Likert Scale: Community Readiness for the Use of the Cash on Delivery (COD) Application Without a Marketplace Using an SPSS-based Likert Scale ]]>
<![CDATA[Saputra, Renda Sandi]]>;
<![CDATA[Salih, Yasir]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.5
<![CDATA[This study aims to analyze the community's readiness for the Cash on Delivery (COD) without marketplace application as a payment method in online shopping transactions. Questionnaires were distributed to 30 respondents aged 18 to 25 years with various levels of education. The results of the questionnaire were analyzed using the SPSS statistical software, and the data obtained included age, gender, education level, and responses to several questions that were relevant to community readiness for COD services. The results of the analysis show that the majority of the community shows a high level of readiness for the COD application, with around 50.0% to 60.0% of respondents belonging to the ready and very ready categories. The diverse age range of respondents indicates that the COD application can reach young age groups, and the varying levels of education indicate that this application attracts interest from various walks of life. The gender of the respondents did not show a significant difference in the level of interest in COD services. Even though the majority showed high readiness, there were some respondents who showed a lower level of readiness. Therefore, a special approach is needed to provide further information and education to this group to increase their readiness to use COD services. In conclusion, the COD application has great potential to become a popular and reliable choice for users to make purchases online. However, effective marketing, education and product development efforts need to be continued to reach the full potential of COD services and provide better benefits to potential users. By focusing on good user experience, data security, and the right marketing strategy, COD applications have a chance of success in a competitive market.]]>
<![CDATA[Determining Long-Term Probabilities for Labor Absorption from the Realization of Domestic Investment (PMDN) and Foreign Investment (PMA) in Indonesia Using Markov Chain Analysis: Determining Long-Term Probabilities for Labor Absorption from the Realization of Domestic Investment (PMDN) and Foreign Investment (PMA) in Indonesia Using Markov Chain Analysis ]]>
<![CDATA[binti Syed Jaaffar, Sharifah Arni]]>;
<![CDATA[Ibrahim, Riza Andrian]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.6
<![CDATA[The government through President Joko Widodo in a press conference stated that the Job Creation Law is very urgent to be passed immediately, even though it has received a lot of resistance in society. The government stated that the bureaucracy in investing in Indonesia is still convoluted, so the possibility of a decrease in employment in the future is very high. However, this was denied by Faisal Basri. This reason is not in accordance with the current state of investment, he concluded. Realization of Domestic Investment (PMDN) and Foreign Investment (PMA) in Indonesia tends to always increase every year, so it is not the investment bureaucracy that is the cause of decreased employment. Abdul Malik said that, the reason for the decrease in absorption labor is the lack of competitiveness of the local workforce and the government's lack of selectiveness in choosing investments that enter Indonesia. This study aims to provide consideration for the government, in the form of long-term employment probabilities from the realization of PMDN and PMA in Indonesia which are calculated using Markov chain analysis. The calculation results obtained are that the long-term probability of increasing the amount of labor absorption from the realization of PMDN and PMA is 0.56 or 56%, while the long-term probability of decreasing is 0.44 or 44%. Then, in specific intervals, the possibility of an increase in the workforce of at most 93 thousand people is very high, namely 0.42 or 42%. This value is greater than the possibility of a decrease in the workforce of at most 93 thousand people, namely 0.27 or 27%. This value is contrary to the government's assumption which states that the possibility of a decrease in labor absorption is very high. Therefore, the results of this research can be used as one of the considerations for the government to rethink the urgency of issuing the Job Creation Law.]]>
<![CDATA[Modeling Life Expectation of Population in Sumatra Island Using Durbin Spatial Model Analysis: Modeling Life Expectation of Population in Sumatra Island Using Durbin Spatial Model Analysis ]]>
<![CDATA[Aulia, Sartika Mega]]>;
<![CDATA[Sirait, Haposan]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.7
<![CDATA[Life expectancy is an indicator in measuring government performance in improving the level of health and well-being of the population of a region. While life expectancy on Sumatra Island has variable values, the quality of public health is less uniform. These variations can be caused by several factors such as education, health services, and economic conditions. Therefore, the government needs to provide further treatment on Sumatra Island by identifying factors that affect life expectancy. The study used a Spatial Durbin Model with Queen Contiguity and Rook Contiguity 154 districts/cities on the island of Sumatra. The variables used in the study were data on life expectancy, average school age, the percentage of many infants who received complete immunization, the percent of households having access to decent drinking water, the proportion of the poor population, the regional gross domestic product in 2021. The results of the study showed that the best model was the model that used the Queen Contiguity weighing matrix because it had a smaller AIC value of 365.22. Factors influencing the life expectancy of the population of Sumatra Island in 2021 using the durbin spatial model with the Queen weigher are the average age of school, the percentage of the poor population, and the regional gross domestic product.]]>
<![CDATA[Panel Data Analysis on Rice (Paddy) Production in Indonesia 2018-2021 : Panel Data Analysis on Rice (Paddy) Production in Indonesia 2018-2021 ]]>
<![CDATA[Yohandoko , Setyo]]>;
<![CDATA[Supriyanto, Supriyanto]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 3 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i3.27
<![CDATA[Rice is the staple food of Indonesian society. Rice (Paddy) as a staple food for Indonesian people is an important commodity for the government in effort to maintain national food security. Food security can be fulfilled if a country has sovereignty over food. Food sovereignty can be realized if domestic production meet its people consumption needs. Therefore, this research pays attention to government policies in effort to increase rice (paddy) production optimally. The policies analyzed included the realization of subsidized fertilizer distribution, the realization of insurance for rice farming, the realization of activities for developing agricultural irrigation units, and farmer exchange rates. Analysis was performed using panel data regression. From this research, it can be concluded that the distribution of subsidized fertilizers, the development of agricultural irrigation units, and the availability of farmer financing in the agricultural financing index positively affect the increase in domestic rice production. Conversely, the occurrence of rice crop insurance claims indicates crop failure in a certain region. This disruption negatively impacts the quantity of domestic rice production. On the other hand, having agricultural insurance provides a guarantee of financing for farmers when they experience crop failure.]]>
<![CDATA[Calculation Option Price on Shares PT. Nippon Indosari Corpindo Tbk. with Fuzzy Binomial Tree Model ]]>
<![CDATA[Prabowo, Agung]]>;
<![CDATA[Mufidah, Afifah]]>;
<![CDATA[Sihwaningrum, Idha]]>;
<![CDATA[Hamisu Kankarofi, Rabiu]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 4 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i4.36
<![CDATA[The Cox-Ross-Rubinstein binomial tree model is widely used in stock and derivative securities calculations, such as options calculations. The binomial CRR model assumes that the parameter increases in option prices and decreases in option prices so this model produces stock price movements up and down stock price movement. However, stock price movements show price fluctuations and cause the volatility of the value to be unsuitable. In this study, modeling stock and option price movements using a fuzzy binomial tree model. The data used was data on the movement of the stock price of Nippon Indosari Corpindo Ltd Plc from February 2021 to January 2022. The results showed that for February 2022, with a risk size of 90%, the selling price options with the greatest volatility of 51.6484081, medium volatility of 33.33154354, and the smallest volatility of 28.17155892.]]>
<![CDATA[Weibull Mortality Tables based on Indonesian Mortality Table 2019 ]]>
<![CDATA[Dei Alibazah, Terra]]>;
<![CDATA[Prabowo, Agung]]>;
<![CDATA[Hendriva Guswanto, Bambang]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 4 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i4.38
<![CDATA[Life tables are used to calculate the probability that a member of a population for each age group in a certain country would survive until the next year and die before the next year. A life table could be constructed based on another life table using a mortality law. This study will construct a Weibull Life Table based on the 2019 Indonesian Life Table using Weibull’s mortality law, with its parameters estimated using the Ordinary Least Squares method. The results of this study show that the oldest age in the male Weibull Life Table is 115 years, which is 4 years older than the oldest age in the male 2019 Indonesian Life Table. The oldest age in the female Weibull Life Table is 119 years, which is 8 years older than the older age in the female 2019 Indonesian Life Table.]]>
<![CDATA[Determining Customer Preferences in Choosing a Marketplace Using the Conjoint Analysis Method ]]>
<![CDATA[Agustina, Sri]]>;
<![CDATA[Sirait, Haposan]]>;
<![CDATA[Salih, Yasir]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 4 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i4.39
<![CDATA[The number of online shopping transactions in Indonesia has grown over the last ten years by 17% and the total number of e-commerce businesses has reached 26.2 million units. This creates competition that requires companies to maintain their existence by understanding consumer psychology. This study aims to determine the combination of attribute levels that are most preferred by consumers in choosing a marketplace as a place to shop by using conjoint analysis. The data used is the result of a survey of Riau University students in the form of a questionnaire. The results of the conjoint analysis in this study show that the level of each attribute that respondents prefer is the display of full color applications and images, free shipping promotions on a certain amount of purchase, the method of paying Cash On Delivery (COD), using J&T/JNE/Sicepat/Tiki/Pos delivery services, and product reviews are available in the form of photos and videos.]]>
<![CDATA[Table Installments Finance Sharia of Motor Vehicle Using Proportional, Annuity, and Effective Rate Method ]]>
<![CDATA[Cahyandari, Rini]]>;
<![CDATA[Hasanah, Faridatul]]>
<![CDATA[ International Journal of Mathematics, Statistics, and Computing Vol. 1 No. 4 (2023): International Journal of Mathematics, Statistics, and Computing ]]>
Publisher : <![CDATA[Communication In Research And Publications ]]>
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DOI: 10.46336/ijmsc.v1i4.40
<![CDATA[One of the products offered by sharia banks is financing. In this financing, Islamic banks usually take profits in the form of margin or it can also be done by profit sharing. The base profit rate model was introduced to determine margins in Islamic bank financing. The margin generated using the base profit rate model is only in the form of a percentage. Therefore, follow-up was carried out by forming a sharia financing installment table to make it easier to see profits in nominal form. The methods used in making this installment table are the proportional method, annuity method and effective rate method. From research conducted in the case of sharia motor vehicle financing with a term of 1 year, a margin of 66.61785% was obtained and the profit based on the calculation results of the proportional method, annuity method and effective rate method was respectively IDR. 9,992,677.20,- , Rp. 5,945,097.50,-, and Rp. 5,412,700.31. So it can be concluded that the effective rate method takes the smallest profits, then followed by the annuity method and finally the proportional method which takes profits that tend to be larger.]]>
