International Journal of Global Operations Research
International Journal of Global Operations Research (IJGOR) is published 4 times a year and is the flagship journal of the Indonesian Operational Research Association (IORA). It is the aim of IJGOR to present papers which cover the theory, practice, history or methodology of OR. However, since OR is primarily an applied science, it is a major objective of the journal to attract and publish accounts of good, practical case studies. Consequently, papers illustrating applications of OR to real problems are especially welcome. In real applications of OR: forecasting, inventory, investment, location, logistics, maintenance, marketing, packing, purchasing, production, project management, reliability and scheduling. In a wide variety of environments: community OR, education, energy, finance, government, health services, manufacturing industries, mining, sports, and transportation. In technical approaches: decision support systems, expert systems, heuristics, networks, mathematical programming, multicriteria decision methods, problems structuring methods, queues, and simulation. Topics Covered: Computational Intelligence Computing and Information Technologies Continuous and Discrete Optimization Decision Analysis and Decision Support System Applied Operations Research in Education Engineering Management Environment, Energy and Natural Resources Financial Engineering Applied Operations Research inGovernment Heuristics Industrial Engineering Information Management Information Technology Inventory Management Knowledge Management Logistics and Supply Chain Management Maintenance Manufacturing Industries Applied Operations Research in Marketing Engineering Markov Chains Mathematics Actuarial Sciences Military and Homeland Security Networks Operations Management Organizational Behavior Planning and Scheduling Policy Modeling and Public Sector Applied Operations Research inPolitical Science Production Management Applied Operations Research inPsychology Queuing Theory Revenue & Risk Management Services management Simulation Applied Operations Research inSociology Applied Operations Research inSports Statistics Stochastic Models Strategic Management Systems Engineering Telecommunications Transportation And so on
Articles
164 Documents
<![CDATA[Application of Structural Equation Model to Analyze Factors Affecting Financial Planning After Retirement ]]>
<![CDATA[Khairi, M. Ihsan]]>;
<![CDATA[Susanti, Dwi]]>;
<![CDATA[Sukono, Sukono]]>
<![CDATA[ International Journal of Global Operations Research Vol. 2 No. 3 (2021): International Journal of Global Operations Research (IJGOR), August 2021 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v2i3.87
<![CDATA[Retirement is something that every working individual will experience. Retirement according to the Big Indonesian Dictionary (KBBI) is not working anymore because the term of office has finished. A person who has retired usually has the right to a pension fund. After retirement, the individual's income will decrease, but the necessities of life can increase. In order to still be able to meet the needs of life after retirement, it is necessary to have financial planning after retirement. There are several factors that influence financial planning after retirement, including income, attitude and culture. Income is an important issue in financial planning. One thing to consider carefully when planning for retirement and setting aside funds for that purpose is the estimate of the amount of money needed to have the expected quality of life in retirement. Attitude towards retirement planning is an internal psychological condition that is influenced by positive or negative assessments related to retirement planning. Cultural differences will result in different financial plans between individuals. In this study, the Structural Equation Model will be used to analyze the factors that influence financial planning after retirement for teachers in several schools in Tanah Datar Regency, West Sumatra. This study uses quantitative methods using a questionnaire as a data collection tool. Based on the collected questionnaires, simulations were carried out to obtain 170 data randomly. To facilitate data analysis, the AMOS application will be used. The results showed that these three factors had a significant effect on financial planning after retirement. The most influential factor on financial planning after retirement is culture with a parameter value of 0.639.]]>
<![CDATA[Farmers' Response To The Rice Farming Business Insurance Program (AUTP) In Kramatwatu District ]]>
<![CDATA[Setiawan, Mohamad Arief]]>;
<![CDATA[Kalfin, Kalfin]]>
<![CDATA[ International Journal of Global Operations Research Vol. 2 No. 4 (2021): International Journal of Global Operations Research (IJGOR), November 2021 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v2i4.86
<![CDATA[The agricultural sector is one attempt most vulnerable to the negative effects of climate change. Behavior extreme climate led not deficient or damage to the irrigation network, the farming, and agricultural infrastructure. To minimize risk losses from a threat that happened on agriculture. One alternative instrument risk management worth considering is the presence of agricultural insurance. The purpose of this research is to study a sort of descriptive program, identify, analyze, and describe a characteristic response of farmers on the insurance program rice farming (AUTP) in the Kramatwatu district. The methodology used in research is the method survey; the location of research is purposive on the basis that Kramatwatu district is a district that members of the farmer's group have an interest in the participation of the highest AUTP program. An analysis of the data used was analysis descriptive is used to give the percentage identification elements communication and the effectiveness of communication. While relations communication element to analyze the effectiveness of communication producers and farmers in the activities of the barns using analysis inferential through correlation test rank spearman. Based on the results of the study it can be seen that the cognitive response category agreed (46%), effective response category agreed (26%), conative response categories agreed (23%), and The results of this study indicate that of all factors associated with the level of farmer participation the AUTP program in Kramatwatu sub-district has an average valuation that includes the income and education factors have a weak but relative relationship, then the age factor and the area of land do not give any relation to the farmer's participation in the AUTP program.]]>
<![CDATA[Design of Geographic Information System Based on Android for Culinary Tourism in Pedan District, Indonesia ]]>
<![CDATA[Ekowati, Maria Atik Sunarti]]>;
<![CDATA[Widianto, Widianto]]>
<![CDATA[ International Journal of Global Operations Research Vol. 2 No. 2 (2021): International Journal of Global Operations Research (IJGOR), May 2021 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v2i2.82
<![CDATA[Pedan City is a sub-district city located in the Klaten Regency area and has always been a culinary tourism object for tourists or residents in the Pedan area and its surroundings. The main problem that arises is when there are more and more culinary attractions in the city of Pedan sub-district, but there is less detailed information about these culinary attractions. The main objevtive of this work is to provide location information tourism in the Pedan area easily and simply because it can be operated anywhere the user is using an android-based mobile device. The method used in this research is the Waterfall method. The results of the study are expected to increase culinary tourism in the city of Klaten district, especially Pedan sub-district, as well as interest for tourists or residents in the city of Pedan sub-district to be interested in visiting culinary tourism objects in the Pedan city area]]>
<![CDATA[Multi-Intervention of Balance Exercise to Prevence of Fall Risk among Vertigo Patient ]]>
<![CDATA[Musthofa, Faizal]]>;
<![CDATA[Kosim, Kosim]]>;
<![CDATA[Fitria, Nita]]>;
<![CDATA[Maulana, Sidik]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 1 (2022): International Journal of Global Operations Research (IJGOR), February 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i1.123
<![CDATA[The condition of vertigo if left unchecked will endanger the patient. Vertigo has an impact on quality of life which includes limitations in carrying out daily activities, the risk of falling and can result in injury. This study was conducted to determine the multi-intervention of balance exercise in preventing the risk of falling in vertigo patients. A rapid literature review was conducted on this study related to multi-intervention balance exercises in preventing the risk of falls in vertigo patients from the PubMed, CINAHL, and Science Direct databases. Inclusion criteria for vulnerable full text research articles in 2017-2021 using English. Balance exercise with vestibular rehabilitation, balance retraining, wobble board exercise can be one way to prevent the risk of falling by maintaining balance in vertigo patients and being able to reduce dizziness symptoms, improve quality of life, compliance in exercise and improve dizziness symptoms. Most studies say that balance exercise interventions with vestibular rehabilitation, balance retraining, and wobble board exercises are effective in improving balance, reducing dizziness symptoms in vertigo patients as a prevention of the risk of falling]]>
<![CDATA[Determinants of Unemployment in the Large and Medium Industrial Sector in Indonesia ]]>
<![CDATA[Abdurachman, Tarmizi Zulkifli]]>;
<![CDATA[Syahnur, Sofyan]]>;
<![CDATA[Syathi, Putri Bintusy]]>
<![CDATA[ International Journal of Global Operations Research Vol. 2 No. 3 (2021): International Journal of Global Operations Research (IJGOR), August 2021 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v2i3.113
<![CDATA[As a country with the second-highest unemployment rate, Indonesian policymakers should worry about this condition. Based on the macroeconomic perspective, unemployment is affected by the firms' labour demand. It highlights that the firm's profit or loss highly determines the labour force demand. Using the Fixed Effect Model, this study results show that the labour force significantly affects industrial output, and the changes of industrial output highly increase the labour demand in the market. However, foreign and domestic capital neither significantly reduce unemployment rate in Indonesia nor stimulate the large and medium industries to absorb labour in the market. The Government should utilize foreign and domestic capital efficiently as possible to reduce unemployment rate.]]>
<![CDATA[Endless Run Based Medicinal Plant Educational Game Development ]]>
<![CDATA[Yazir, M Sofwan]]>;
<![CDATA[Tosida, Eneng Tita]]>;
<![CDATA[Karlitasari, Lita]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 2 (2022): International Journal of Global Operations Research (IJGOR), May 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i2.138
<![CDATA[Medicinal plants are very beneficial for health. Medicinal plants can be used as an alternative to cheap and efficient medicine, but not everyone knows what plants can be used as medicine and how to process them. Students are expected to be more familiar with the types of medicinal plants, both local and scientific names, uses, parts used, processing methods, and rules for use. To be able to introduce medicinal plants more interactively, then one solution that can be applied is through application-based games. Educational games are expected to stimulate students to be more active in studying medicinal plants. The game technique used is endless run. Game "Endless Run" is categorized as an action game, has a linear design without ending, without stopping and no stages or changing levels. "Endless Run" is a game where the main character in the game continues to run the game that will not stop. The results of the usability trials shown to teachers, lecturers and students showed good respondents so that people who want to learn the introduction of medicinal plants can obtain information and benefits so that they can increase students' learning desires and the application is easy to operate and the survey results from the percentage (effect 80 %, control 90%, efficiency 70%, helpfulness 80%, learnability 90%). The Endless Run-Based Medicinal Plant Educational Game Development Application can be used by students, college students, millennials and the general public. By utilizing the Unity 3D application, this software includes a game engine capable of handling three-dimensional graphics. This application will run on the Android 8.0 (Oreo) mobile platform with an application capacity of 33.37MB.]]>
<![CDATA[The Effect of Performance, Age, Transfer Fee and Salary to the Market Value of Professional Players (Empirical Studies in European Leagues Football Clubs) ]]>
<![CDATA[Margareta, Lely Marce]]>;
<![CDATA[Malinda, Okta]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 3 (2022): International Journal of Global Operations Research (IJGOR), August, 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i3.148
<![CDATA[This study aims to provide empirical evidence about the effect of performance, age, transfer fee, and salary to the market value of professional football players. Data obtained from the official website which publish price of the football players in the transfer market in European leagues that is transfermarkt.co.uk. The population in this study is 4 club in Europe. Based on purposive sampling method, samples obtained as many as 400 players from 40 clubs. The hypothesis in this study tested use multiple regression analysis to test the effect of independent variables on the dependent variable. The research result shows that the performance has positive significant affect the market value of football players, ages has positive significant effect to the market value of football players, incoming transfer fee has positive significant effect to the market value of football players and the salary has positive significant effect to the market value of football players. The conclusion of this study is the performance, age, transfer fee and salary can be used to base appraisals football players in the market value.]]>
<![CDATA[The Connection Between Finite Projective Planes And Latin Squares ]]>
<![CDATA[Suyudi, Mochamad]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 2 (2022): International Journal of Global Operations Research (IJGOR), May 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i2.164
<![CDATA[A Latin square arrangement is an arrangement of r symbols in r rows and c columns, such that every symbol occurs once in each row and each column. When two Latin squares of same order are superimposed on one another, in the resultant array if every ordered pair of symbols occurs exactly once, then the two Latin squares are said to be orthogonal. If in a set of Latin squares, any two Latin squares are orthogonal then the set is called Mutually Orthogonal Latin Squares of order r. Methods of constructing when p is prime or prime power are discussed here. A finite projective plane of order n exists if n is a prime or power of a prime number and it has been assumed that this is the only one that exists, reminiscent of the conjecture about the existence of  Latin squares n x n orthogonal to each other, so that these two existence problems are equivalent.]]>
<![CDATA[Comparative Analysis of the Speed of the Sorting Method on Google Translate Indonesian-English Using Binary Search ]]>
<![CDATA[Ekowati, Maria Atik Sunarti]]>;
<![CDATA[Nindyatama, Zefanya Permata]]>;
<![CDATA[Widianto, Widianto]]>;
<![CDATA[Dananti, Kristyanan]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 3 (2022): International Journal of Global Operations Research (IJGOR), August, 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i3.167
<![CDATA[In Indonesia, English is a compulsory subject for students. This course is an uninteresting subject and tends to be difficult for students to understand. Meanwhile, on the other hand, international issues are often discussed, namely English which is Students must know and be fluent in reading, writing and communication. The basic idea of research objectives, comparing the sorting process using two different algorithms, namely bubble sort and Merge Sort. The basic model of the research method Comparative Analysis of the Speed of the Shorting Method on Google Translate Indonesian-English Using Binary Search. Sorting, Sorted (ordered according to certain rules/rules), and the data is presented in sorted form, as said in dictionaries, and files in a directory. The algorithm used for sorting is bubble sort, which is an element comparison operation that is exchanged for other elements until the end of the data series is reached, until no more elements are swapped. Results for find out how well the performance speed of the bubble sort algorithm is in sorting data.]]>
<![CDATA[Implementation of Cheapest Insertion Heuristic Algorithm in Determining Shortest Delivery Route ]]>
<![CDATA[Fargiana, Farid]]>;
<![CDATA[Respitawulan, Respitawulan]]>;
<![CDATA[Fajar, Yusuf]]>;
<![CDATA[Suhaedi, Didi]]>;
<![CDATA[Harahap, Erwin]]>
<![CDATA[ International Journal of Global Operations Research Vol. 3 No. 2 (2022): International Journal of Global Operations Research (IJGOR), May 2022 ]]>
Publisher : <![CDATA[iora ]]>
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DOI: 10.47194/ijgor.v3i2.137
<![CDATA[The buying and selling transaction system that many people use today is the online buying and selling system. In this system, there is a process of goods delivery by one branch of a freight forwarder in Indonesia, namely SiCepat Express Baleendah. In the process of shipping goods, a delivery route with the shortest path is needed in order to minimize of the goods delivery process. The problem of the route of goods delivery can be solved by one of the algorithms in the Traveling Salesman Problem (TSP), namely the Cheapest Insertion Heuristic (CIH) Algorithm. This study aims to determine the shortest route and distance for goods delivery using the CIH Algorithm by the Asymmetric TSP CIH application, as well as knowing its efficiency compared to the route that used by SiCepat Express Baleendah. The result shows that the use of the CIH Algorithm is proven to produce a more efficient delivery route than the route created by SiCepat Express Baleendah. Based on the goods delivery route from SiCepat Express Baleendah, the result of the total distance is 18.55 km. On the other hand, based on the CIH Algorithm, the delivery route obtained result is 13.45 km. The efficiency of using the CIH Algorithm is 27.48% better than the result from SiCepat Express Baleendah route.]]>
