首页 > 最新文献

ASEAN Journal of Systems Engineering最新文献

英文 中文
FACTOR ANALYSIS OF HEALTHY FOOD PHOTOGRAPH 健康食品照片因素分析
Pub Date : 2022-07-31 DOI: 10.22146/ajse.v6i1.76128
Nindya Laksita Laras, M. Ushada, T. Wijayanto
Lockdown is one way to reduce the transmission rate of COVID-19. Nevertheless, on the other hand, lockdowns also increase human psychological problems to cause the emergence of emotional eating. In addition, social media exposure that presents food photos can trigger the desire to eat. However, this only applies to high-fat and high-calorie foods, while healthy foods do not have the same stimuli. Therefore, more research is needed on the properties of healthy food photos desired by consumers in order to be able to create or design healthy food photos with an effect that resembles photos of high-fat and high-calorie foods. This study employed the Kansei Engineering approach in designing healthy food photos. Through Kansei Engineering, we can determine the nature of healthy food photos consumers want. The type of Kansei engineering used in this study was Kansei Engineering Type I and was limited to the Semantic Space stage. The process of factor reduction from the results of the semantic differential was carried out by using factor analysis to obtain the most critical factors related to healthy food photos. The semantic space spanning resulted in 23 pairs of Kansei words that related and represented healthy food photos. Based on the factor analysis results, these Kansei words were then into 6-factor groups. Each of the factor groups was represented by the Kansei word pair with the highest loadings value. The selected pair of Kansei words showed that healthy food photos could be represented by Kansei words attractive, contrast, proper lighting, neat, high-quality image, and straightforward. 
封锁是降低COVID-19传播率的一种方法。然而,另一方面,封锁也增加了人的心理问题,导致情绪化饮食的出现。此外,社交媒体上展示的食物照片也会引发人们的食欲。然而,这只适用于高脂肪和高热量的食物,而健康食品没有同样的刺激。因此,需要对消费者所期望的健康食品照片的属性进行更多的研究,以便能够创建或设计出类似于高脂肪高热量食品照片效果的健康食品照片。本研究采用感性工学方法设计健康食品图片。通过感性工学,我们可以确定消费者想要的健康食品照片的性质。本研究中使用的感性工学类型为感性工学类型I,仅限于语义空间阶段。利用因子分析对语义差值结果进行因子约简处理,得到与健康食品照片相关的最关键因素。语义空间的跨越产生了23对与健康食品照片相关和代表健康食品照片的感性词汇。根据因子分析结果,将这些感性词分为6个因子组。每个因子组都用最高负载值的感性词对来表示。所选的一对感性词表明,健康食品照片的感性词表现为吸引人、对比度高、光线适宜、画面整齐、高质量、直观。
{"title":"FACTOR ANALYSIS OF HEALTHY FOOD PHOTOGRAPH","authors":"Nindya Laksita Laras, M. Ushada, T. Wijayanto","doi":"10.22146/ajse.v6i1.76128","DOIUrl":"https://doi.org/10.22146/ajse.v6i1.76128","url":null,"abstract":"Lockdown is one way to reduce the transmission rate of COVID-19. Nevertheless, on the other hand, lockdowns also increase human psychological problems to cause the emergence of emotional eating. In addition, social media exposure that presents food photos can trigger the desire to eat. However, this only applies to high-fat and high-calorie foods, while healthy foods do not have the same stimuli. Therefore, more research is needed on the properties of healthy food photos desired by consumers in order to be able to create or design healthy food photos with an effect that resembles photos of high-fat and high-calorie foods. This study employed the Kansei Engineering approach in designing healthy food photos. Through Kansei Engineering, we can determine the nature of healthy food photos consumers want. The type of Kansei engineering used in this study was Kansei Engineering Type I and was limited to the Semantic Space stage. The process of factor reduction from the results of the semantic differential was carried out by using factor analysis to obtain the most critical factors related to healthy food photos. The semantic space spanning resulted in 23 pairs of Kansei words that related and represented healthy food photos. Based on the factor analysis results, these Kansei words were then into 6-factor groups. Each of the factor groups was represented by the Kansei word pair with the highest loadings value. The selected pair of Kansei words showed that healthy food photos could be represented by Kansei words attractive, contrast, proper lighting, neat, high-quality image, and straightforward. ","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132765731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FORECASTING ANALYSIS ON ELECTRICITY DEMAND IN THE SPECIAL REGION OF YOGYAKARTA UNDER THE IMPACT OF THE COVID-19 PANDEMIC 2019冠状病毒病大流行影响下日惹特殊地区电力需求预测分析
Pub Date : 2022-07-29 DOI: 10.22146/ajse.v6i1.75149
Feikal Aprieza, M. K. Ridwan, W. Wilopo
The COVID-19 pandemic as a global pandemic on 2020 has encouraged the Indonesian Government to establish pandemic response policies in many provinces. The policies that had been restricting mobility during the pandemic showed significant impacts in many aspects in the Special Region of Yogyakarta. A shifting pattern in electricity consumption can be seen as the growth of economic sectors in the GDP encountered contraction after the decline of community mobility. Electricity demand forecasting is required to analyze the impact of the COVID-19 pandemic by applying three scenarios, specifically an unlikely pandemic scenario or Business As Usual (BAU), moderate scenario (MOD), and optimistic scenario (OPT). Also, the household, industrial, business, social, and public sectors are analyzed in order to see the shifting pattern in electricity consumption through the scenarios that have been given. Energy modeling is conducted with Low Emission Analysis Platform (LEAP) software to analyze electricity demand forecasting from 2019 to 2030 based on the three scenarios. The results show that the electricity demand in 2030, according to BAU, MOD, and OPT scenarios, in the amount of 5,301.58 GWh, 4,489.11 GWh, and 4,648.12 GWh, respectively. According to the MOD and OPT scenarios, the electricity demands of the household and industrial sectors will increase relative to the BAU scenario. Meanwhile, according to both scenarios, the electricity demands of the business and social sectors will decrease. In the public sector, the MOD scenario shows the decline of electricity demand relative to the BAU scenario, while OPT scenario shows the opposite.
2019冠状病毒病大流行作为2020年的全球大流行,促使印度尼西亚政府在许多省份制定大流行应对政策。在大流行病期间限制流动的政策在日惹特区的许多方面显示出重大影响。电力消费模式的转变可以看作是在社区流动性下降后,经济部门的增长在GDP中遇到了收缩。为了分析新冠肺炎大流行的影响,需要进行电力需求预测,具体应用三种情景,即不太可能发生的大流行情景或一切照常(BAU)、中等情景(MOD)和乐观情景(OPT)。此外,还分析了家庭、工业、商业、社会和公共部门,以便通过所给出的情景看到电力消费的变化模式。利用低排放分析平台(Low Emission Analysis Platform, LEAP)软件进行能源建模,分析2019 - 2030年三种情景下的电力需求预测。结果表明:2030年,根据BAU、MOD和OPT情景,电力需求分别为5,301.58 GWh、4,489.11 GWh和4,648.12 GWh。根据MOD和OPT情景,家庭和工业部门的电力需求将相对于BAU情景增加。同时,根据这两种情况,商业和社会部门的电力需求将减少。在公共部门,MOD情景显示相对于BAU情景的电力需求下降,而OPT情景显示相反的情况。
{"title":"FORECASTING ANALYSIS ON ELECTRICITY DEMAND IN THE SPECIAL REGION OF YOGYAKARTA UNDER THE IMPACT OF THE COVID-19 PANDEMIC","authors":"Feikal Aprieza, M. K. Ridwan, W. Wilopo","doi":"10.22146/ajse.v6i1.75149","DOIUrl":"https://doi.org/10.22146/ajse.v6i1.75149","url":null,"abstract":"The COVID-19 pandemic as a global pandemic on 2020 has encouraged the Indonesian Government to establish pandemic response policies in many provinces. The policies that had been restricting mobility during the pandemic showed significant impacts in many aspects in the Special Region of Yogyakarta. A shifting pattern in electricity consumption can be seen as the growth of economic sectors in the GDP encountered contraction after the decline of community mobility. Electricity demand forecasting is required to analyze the impact of the COVID-19 pandemic by applying three scenarios, specifically an unlikely pandemic scenario or Business As Usual (BAU), moderate scenario (MOD), and optimistic scenario (OPT). Also, the household, industrial, business, social, and public sectors are analyzed in order to see the shifting pattern in electricity consumption through the scenarios that have been given. Energy modeling is conducted with Low Emission Analysis Platform (LEAP) software to analyze electricity demand forecasting from 2019 to 2030 based on the three scenarios. The results show that the electricity demand in 2030, according to BAU, MOD, and OPT scenarios, in the amount of 5,301.58 GWh, 4,489.11 GWh, and 4,648.12 GWh, respectively. According to the MOD and OPT scenarios, the electricity demands of the household and industrial sectors will increase relative to the BAU scenario. Meanwhile, according to both scenarios, the electricity demands of the business and social sectors will decrease. In the public sector, the MOD scenario shows the decline of electricity demand relative to the BAU scenario, while OPT scenario shows the opposite.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130261932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BIOREMEDIATION OF TOFU INDUSTRY LIQUID WASTE USING EFFECTIVE MICROORGANISM-4 (EM4) SOLUTION (CASE STUDY OF TOFU SENTOSA INDUSTRY, YOGYAKARTA) 利用有效微生物-4 (em4)溶液生物修复豆腐工业废液(以日惹圣淘沙豆腐工业为例)
Pub Date : 2022-07-29 DOI: 10.22146/ajse.v6i1.75615
S. Avia, B. Kamulyan, A. T. Yuliansyah
Liquid waste produced from the tofu industry contains high contaminants such as BOD, COD, TDS, pH, and TSS, which can pollute the environment. Therefore, pollutants should be decreased before being discharged into the environment. Tofu waste treatment is constrained by adequate technology and high costs. Biological treatment is one of the best treatments, a waste treatment process by utilizing microorganisms. This research used the intermittent anaerobic-aerobic process and was conducted on a laboratory scale using a tank made of glass 25 cm long, 20 cm wide, 15 cm high, and a tank of 30 cm long and 15 cm wide 15 cm high. The treatment process in this research used samples adding EM4 solution with a concentration of 1/20 and samples without EM4. The stages of the research were carried out consisting of preliminary research, core research, and further research. Preliminary research used 1/20 (5%) concentration of EM4 and was fermented for four days at room temperature. As a result, the pH value decreased from 6 to 4, and the presence of a white layer above the surface. The average pollutant reduction efficiency value in the sample with Effective Microorganism-4 (EM4) and without the Effective Microorganism-4 (EM4) was tested at different duration times for each parameter. The efficiency reduction value of the sample with EM4 of BOD was 87.14%, COD 74.68%, TSS 15.88%, and TDS -17.91%, while in the sample without EM4 of BOD value was 76.54%, COD 67.78%, TSS 22.77%, TDS -16.78% with a time process of 41st day.
豆腐工业产生的废液中含有高浓度的BOD、COD、TDS、pH、TSS等污染物,会对环境造成污染。因此,在排放到环境中之前,应该减少污染物。豆腐废料的处理受到技术和成本的限制。生物处理是最好的处理方法之一,是利用微生物进行废物处理的过程。本研究采用间歇式厌氧-好氧工艺,在实验室规模上使用长25厘米、宽20厘米、高15厘米的玻璃水箱和长30厘米、宽15厘米、高15厘米的水箱进行。本研究的处理工艺分为加入浓度为1/20的EM4溶液的样品和未加入EM4的样品。研究分为前期研究、核心研究和深入研究三个阶段。初步研究采用1/20(5%)浓度的EM4,在室温下发酵4天。结果,pH值从6下降到4,表面上出现白色层。对各参数在不同持续时间下,使用有效微生物-4 (EM4)和不使用有效微生物-4 (EM4)的样品的平均污染物减量效率值进行了测试。EM4对BOD的效率降低值为87.14%,COD为74.68%,TSS为15.88%,TDS为-17.91%,而无EM4对BOD的效率降低值为76.54%,COD为67.78%,TSS为22.77%,TDS为-16.78%,时间过程为41 d。
{"title":"BIOREMEDIATION OF TOFU INDUSTRY LIQUID WASTE USING EFFECTIVE MICROORGANISM-4 (EM4) SOLUTION (CASE STUDY OF TOFU SENTOSA INDUSTRY, YOGYAKARTA)","authors":"S. Avia, B. Kamulyan, A. T. Yuliansyah","doi":"10.22146/ajse.v6i1.75615","DOIUrl":"https://doi.org/10.22146/ajse.v6i1.75615","url":null,"abstract":"Liquid waste produced from the tofu industry contains high contaminants such as BOD, COD, TDS, pH, and TSS, which can pollute the environment. Therefore, pollutants should be decreased before being discharged into the environment. Tofu waste treatment is constrained by adequate technology and high costs. Biological treatment is one of the best treatments, a waste treatment process by utilizing microorganisms. This research used the intermittent anaerobic-aerobic process and was conducted on a laboratory scale using a tank made of glass 25 cm long, 20 cm wide, 15 cm high, and a tank of 30 cm long and 15 cm wide 15 cm high. The treatment process in this research used samples adding EM4 solution with a concentration of 1/20 and samples without EM4. The stages of the research were carried out consisting of preliminary research, core research, and further research. Preliminary research used 1/20 (5%) concentration of EM4 and was fermented for four days at room temperature. As a result, the pH value decreased from 6 to 4, and the presence of a white layer above the surface. The average pollutant reduction efficiency value in the sample with Effective Microorganism-4 (EM4) and without the Effective Microorganism-4 (EM4) was tested at different duration times for each parameter. The efficiency reduction value of the sample with EM4 of BOD was 87.14%, COD 74.68%, TSS 15.88%, and TDS -17.91%, while in the sample without EM4 of BOD value was 76.54%, COD 67.78%, TSS 22.77%, TDS -16.78% with a time process of 41st day.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121670803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IMPLEMENTATION OF IMAGE CLASSIFICATION USING CONVOLUTIONAL NEURAL NETWORK (CNN) ALGORITHM ON VEHICLES IMAGES 基于卷积神经网络(cnn)算法的车辆图像分类实现
Pub Date : 2022-07-22 DOI: 10.22146/ajse.v6i1.72411
Muhammad Nurhadi, Joko Purnomo
The use of surveillance cameras for most agencies only relies on video recordings and storing them for a certain time. The use of this surveillance camera can be applied to determine the type of vehicle even if the camera is not in the right position. Regarding the background of the problem, this research will use the Convolutional Neural Network (CNN) algorithm, which is part of Deep Learning with the help of Keras Library and TensorFlow, to carry out the learning process on videos captured by surveillance cameras so that it can detect images from 3 types of vehicles. The dataset used is 100 images of motorcycles, 100 images of cars, and 100 images of buses. The method used is the Image Classification Method, and the model used is the best model selected from several experiments. Researchers used training and test data distribution, namely 80% and 20%. The best results were obtained with an accuracy rate of 96.49% using epoch 100, learning rate 0.001, and batch size 32. Meanwhile, vehicle images produced image accuracy for motorcycle images when using test data from outside the dataset is 78.92%, car image is 81.71%, and bus image is 82.26%.
对大多数机构来说,监控摄像机的使用只依赖于录像并将其存储一段时间。使用这种监控摄像头,即使摄像头不在正确的位置,也可以应用于确定车辆的类型。关于问题的背景,本研究将使用卷积神经网络(CNN)算法,这是深度学习的一部分,在Keras Library和TensorFlow的帮助下,对监控摄像头捕获的视频进行学习过程,从而可以检测到3种类型车辆的图像。使用的数据集是100张摩托车图像,100张汽车图像和100张公共汽车图像。使用的方法是图像分类方法,使用的模型是经过多次实验选择的最佳模型。研究人员采用训练和测试数据分布,即80%和20%。使用epoch 100,学习率0.001,批大小为32,获得了准确率为96.49%的最佳结果。同时,车辆图像使用外部测试数据对摩托车图像生成的图像精度为78.92%,汽车图像为81.71%,公交车图像为82.26%。
{"title":"IMPLEMENTATION OF IMAGE CLASSIFICATION USING CONVOLUTIONAL NEURAL NETWORK (CNN) ALGORITHM ON VEHICLES IMAGES","authors":"Muhammad Nurhadi, Joko Purnomo","doi":"10.22146/ajse.v6i1.72411","DOIUrl":"https://doi.org/10.22146/ajse.v6i1.72411","url":null,"abstract":"The use of surveillance cameras for most agencies only relies on video recordings and storing them for a certain time. The use of this surveillance camera can be applied to determine the type of vehicle even if the camera is not in the right position. Regarding the background of the problem, this research will use the Convolutional Neural Network (CNN) algorithm, which is part of Deep Learning with the help of Keras Library and TensorFlow, to carry out the learning process on videos captured by surveillance cameras so that it can detect images from 3 types of vehicles. The dataset used is 100 images of motorcycles, 100 images of cars, and 100 images of buses. The method used is the Image Classification Method, and the model used is the best model selected from several experiments. Researchers used training and test data distribution, namely 80% and 20%. The best results were obtained with an accuracy rate of 96.49% using epoch 100, learning rate 0.001, and batch size 32. Meanwhile, vehicle images produced image accuracy for motorcycle images when using test data from outside the dataset is 78.92%, car image is 81.71%, and bus image is 82.26%.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134524652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
POROUS CARBON FROM PINEAPPLE PEEL AS ELECTRODE MATERIAL OF SUPERCAPACITOR 菠萝皮多孔碳作为超级电容器的电极材料
Pub Date : 2022-07-22 DOI: 10.22146/ajse.v6i1.73662
Samuel Elean, Suhanan Suhanan, T. Ariyanto
Porous carbon from biomass has a great potential to be developed. Biomass as a resource is renewable, abundantly available, and cheap. One application of porous carbon is as an electrode material of supercapacitor due to its advantageous pore properties such as high specific surface area and pore volume. This research prepared porous carbon material from pineapple peel waste and tested it as a supercapacitor electrode. The research steps were material preparation, conversion of pineapple peel to porous carbon, and characterization, including material characterization and electrochemical characterizations. Pineapple peel (under 80 mesh size) was pre-carbonized by hydrothermal method at 1900C for 2 hours under a subcritical condition. After that, biochar was pyrolyzed at 9000C and activated using CO2/N2 (KB-900-50). As a reference, biochar was also pyrolyzed under a nitrogen atmosphere at 9000C without activation (KB-900). Produced porous carbon was characterized (i) pore structures, e.g., specific surface area, average pore diameter, and total pore volume using N2-sorption analysis, and (ii) electrochemical performance, e.g., cyclic voltammetry and galvanostatic method using 1 M H2SO4 electrolyte solution. The result showed that the activation process effectively increased the porosity of porous carbon. Material (KB-900-50) possesses a high surface area of 648 m2/g and a high capacitance value of 78 F/g.
生物质多孔碳具有很大的开发潜力。生物质作为一种可再生资源,储量丰富,价格低廉。多孔碳具有高比表面积和孔容等优越的孔隙特性,可作为超级电容器的电极材料。本研究以菠萝皮废料为原料制备多孔碳材料,并对其作为超级电容器电极进行了测试。研究步骤包括材料制备、菠萝皮转化成多孔碳以及表征,包括材料表征和电化学表征。采用水热法对80目以下的菠萝皮进行预碳化,温度为1900℃,亚临界条件下预碳化2小时。之后,生物炭在9000C下热解,并使用CO2/N2 (KB-900-50)活化。作为参考,生物炭也在9000C的氮气气氛下进行了无活化热解(KB-900)。采用n2吸附法对制备的多孔碳进行了表征:(1)孔结构,如比表面积、平均孔径和总孔体积;(2)电化学性能,如循环伏安法和恒流法,使用1 M H2SO4电解质溶液。结果表明,活化过程有效地提高了多孔炭的孔隙率。材料(KB-900-50)具有648 m2/g的高表面积和78 F/g的高电容值。
{"title":"POROUS CARBON FROM PINEAPPLE PEEL AS ELECTRODE MATERIAL OF SUPERCAPACITOR","authors":"Samuel Elean, Suhanan Suhanan, T. Ariyanto","doi":"10.22146/ajse.v6i1.73662","DOIUrl":"https://doi.org/10.22146/ajse.v6i1.73662","url":null,"abstract":"Porous carbon from biomass has a great potential to be developed. Biomass as a resource is renewable, abundantly available, and cheap. One application of porous carbon is as an electrode material of supercapacitor due to its advantageous pore properties such as high specific surface area and pore volume. This research prepared porous carbon material from pineapple peel waste and tested it as a supercapacitor electrode. The research steps were material preparation, conversion of pineapple peel to porous carbon, and characterization, including material characterization and electrochemical characterizations. Pineapple peel (under 80 mesh size) was pre-carbonized by hydrothermal method at 1900C for 2 hours under a subcritical condition. After that, biochar was pyrolyzed at 9000C and activated using CO2/N2 (KB-900-50). As a reference, biochar was also pyrolyzed under a nitrogen atmosphere at 9000C without activation (KB-900). Produced porous carbon was characterized (i) pore structures, e.g., specific surface area, average pore diameter, and total pore volume using N2-sorption analysis, and (ii) electrochemical performance, e.g., cyclic voltammetry and galvanostatic method using 1 M H2SO4 electrolyte solution. The result showed that the activation process effectively increased the porosity of porous carbon. Material (KB-900-50) possesses a high surface area of 648 m2/g and a high capacitance value of 78 F/g.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125221540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MODEL OF VEHICLE ROUTING PROBLEM WITH SPLIT DELIVERY, MULTI TRIPS, MULTI PRODUCTS AND COMPARTMENTS FOR DETERMINING FUEL DISTRIBUTION ROUTES 分送、多行程、多产品和车厢的车辆路线问题模型,用于确定燃料分配路线
Pub Date : 2021-12-31 DOI: 10.22146/ajse.v5i2.72461
Dinda Safitri Ramadhani, N. Masruroh, J. Waluyo
The industrial development in Indonesia encourages companies to have high sensitivity in competing to meet consumer demands promptly by considering minimum distribution costs. One of the factors that can affect distribution costs is route determination. Determining the distribution route is the Vehicle Routing Problem (VRP). The purpose of VRP is to arrange the order of distribution routes to produce a minimum total distance. This study aims to determine the fuel distribution route at TBBM Rewulu in one delivery period to obtain the optimal distribution route and minimize the vehicle mileage. Delivery is carried out using three types of tanker trucks with heterogeneous capacities. This study uses a mathematical model of Mixed Integer Linear Programming (MILP) by considering split delivery, multi trips, multi-products, and compartments.The branch and bound method in the LINGO solver has been used to solve this problem. This model was tested on a simple case using data of 8 customers with different distances and demand shipped by truck. The results obtained indicate that no boundaries are violated, and all consumers are served. The mathematical model built is still general, so it can solve similar cases. A model can be developed for further research by adding VRP variants such as time windows and adding the product types to represent the entire existing system.
印度尼西亚的工业发展促使企业在竞争中具有高度的敏感性,考虑到最低的分销成本,以迅速满足消费者的需求。影响配送成本的因素之一是路线的确定。分配路线的确定是车辆路由问题(Vehicle Routing Problem, VRP)。VRP的目的是安排分配路线的顺序,以产生最小的总距离。本研究旨在确定TBBM Rewulu在一个交付周期内的燃油配送路线,以获得最优配送路线并使车辆行驶里程最小。运输使用三种不同容量的油罐车。本研究采用混合整数线性规划(MILP)的数学模型,考虑了分送、多行程、多产品和车厢。LINGO求解器中的分支定界法被用于求解这一问题。该模型在一个简单的案例上进行了测试,使用了8个客户的数据,这些客户的距离和需求不同,由卡车运输。结果表明,该方法不违反任何界限,为所有消费者提供了服务。所建立的数学模型仍然是通用的,因此它可以解决类似的情况。通过添加VRP变量(如时间窗口)和添加产品类型来表示整个现有系统,可以开发模型以供进一步研究。
{"title":"MODEL OF VEHICLE ROUTING PROBLEM WITH SPLIT DELIVERY, MULTI TRIPS, MULTI PRODUCTS AND COMPARTMENTS FOR DETERMINING FUEL DISTRIBUTION ROUTES","authors":"Dinda Safitri Ramadhani, N. Masruroh, J. Waluyo","doi":"10.22146/ajse.v5i2.72461","DOIUrl":"https://doi.org/10.22146/ajse.v5i2.72461","url":null,"abstract":"The industrial development in Indonesia encourages companies to have high sensitivity in competing to meet consumer demands promptly by considering minimum distribution costs. One of the factors that can affect distribution costs is route determination. Determining the distribution route is the Vehicle Routing Problem (VRP). The purpose of VRP is to arrange the order of distribution routes to produce a minimum total distance. This study aims to determine the fuel distribution route at TBBM Rewulu in one delivery period to obtain the optimal distribution route and minimize the vehicle mileage. Delivery is carried out using three types of tanker trucks with heterogeneous capacities. This study uses a mathematical model of Mixed Integer Linear Programming (MILP) by considering split delivery, multi trips, multi-products, and compartments.The branch and bound method in the LINGO solver has been used to solve this problem. This model was tested on a simple case using data of 8 customers with different distances and demand shipped by truck. The results obtained indicate that no boundaries are violated, and all consumers are served. The mathematical model built is still general, so it can solve similar cases. A model can be developed for further research by adding VRP variants such as time windows and adding the product types to represent the entire existing system.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131185555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
POTENTIAL STUDY OF PHOTOVOLTAIC POWER STATIONS TO MEET ENERGY NEEDS OF FUEL CELL UNITS IN BARU PANDANSIMO BARU BEACH OF BANTUL, YOGYAKARTA 日惹班图尔baru pandansimo baru海滩光伏电站满足燃料电池装置能源需求的潜力研究
Pub Date : 2021-12-31 DOI: 10.22146/ajse.v5i2.72462
Ely Afridiana Kuncoro, A. Budiman, J. Waluyo
Energy needs are increasing rapidly along with population growth, increasing population activity, and massive development in technology. However, a current energy source is mainly from fossil energy. This condition is inversely proportional to fossil energy stock, decreasing year by year as a natural condition of non-renewable energy. On the other hand, fossil energy damages the environment by its pollution, such as deforestation and air and atmospheric pollution in the form of greenhouse gas emissions. For this reason, the world needs another source of energy that could replace fossil energy as a source and is also environmentally friendly. New and renewable energy could be the solution.Indonesia has plenty amount of new and renewable energy potential. However, renewable energy is weather-dependent, thus requiring storage technology to store the energy. The current common storage technology is battery technology. This technology has some weaknesses: limited capacity, high cost, less flexibility, expensive, and short lifetime. Another storage technology with high flexibility, easy transport, high amount capacity, long lifetime, and wide usage is needed. Hydrogen storage appears to meet all these requirements.This study aimed to calculate the optimum potential of photovoltaic power stations at Baru Pandansimo Beach of Bantul, Yogyakarta, as an energy source to produce hydrogen as a storage energy system. The simulations are done using HOMER software were carried out in three photovoltaic power station scenarios: fixed-tilt, single-axis tracker, and dual-axis tracker, and showed that the fixed-tilt photovoltaic power station scenario is the most optimal design and architecture. With total capacity reaching 7.8 MWp potential to be built at Baru Pandansimo, it could generate 11,657,704 KWh/year electrical energy with an NPC value of USD 8.29 M, and a COE of 0.0420 USD/KWh. This electrical energy could produce 213,288.06 kilograms of H2 at a 2.3 USD/kg production cost. 
随着人口增长、人口活动增加和技术的大规模发展,能源需求正在迅速增加。然而,目前的能源来源主要是化石能源。这一状况与化石能源存量成反比,作为不可再生能源的自然状况逐年减少。另一方面,化石能源通过其污染破坏环境,例如森林砍伐和以温室气体排放的形式污染空气和大气。因此,世界需要另一种既能取代化石能源,又对环境友好的能源。新能源和可再生能源可能是解决方案。印尼拥有大量的新能源和可再生能源潜力。然而,可再生能源依赖于天气,因此需要存储技术来存储能量。目前常用的存储技术是电池技术。该技术存在容量有限、成本高、灵活性差、价格昂贵、寿命短等缺点。需要另一种灵活性高、运输方便、容量大、寿命长、应用广泛的存储技术。氢储存似乎满足了所有这些要求。本研究旨在计算日惹Bantul Baru Pandansimo海滩光伏电站作为能源生产氢气作为储能系统的最佳潜力。利用HOMER软件对固定倾斜、单轴跟踪和双轴跟踪三种光伏电站场景进行了仿真,结果表明,固定倾斜光伏电站场景是最优的设计和架构。Baru Pandansimo的总容量达到7.8 MWp的潜力,每年可产生11,657,704千瓦时的电能,NPC价值为829万美元,COE为0.0420美元/千瓦时。这种电能可以生产213288.06千克氢气,生产成本为2.3美元/千克。
{"title":"POTENTIAL STUDY OF PHOTOVOLTAIC POWER STATIONS TO MEET ENERGY NEEDS OF FUEL CELL UNITS IN BARU PANDANSIMO BARU BEACH OF BANTUL, YOGYAKARTA","authors":"Ely Afridiana Kuncoro, A. Budiman, J. Waluyo","doi":"10.22146/ajse.v5i2.72462","DOIUrl":"https://doi.org/10.22146/ajse.v5i2.72462","url":null,"abstract":"Energy needs are increasing rapidly along with population growth, increasing population activity, and massive development in technology. However, a current energy source is mainly from fossil energy. This condition is inversely proportional to fossil energy stock, decreasing year by year as a natural condition of non-renewable energy. On the other hand, fossil energy damages the environment by its pollution, such as deforestation and air and atmospheric pollution in the form of greenhouse gas emissions. For this reason, the world needs another source of energy that could replace fossil energy as a source and is also environmentally friendly. New and renewable energy could be the solution.Indonesia has plenty amount of new and renewable energy potential. However, renewable energy is weather-dependent, thus requiring storage technology to store the energy. The current common storage technology is battery technology. This technology has some weaknesses: limited capacity, high cost, less flexibility, expensive, and short lifetime. Another storage technology with high flexibility, easy transport, high amount capacity, long lifetime, and wide usage is needed. Hydrogen storage appears to meet all these requirements.This study aimed to calculate the optimum potential of photovoltaic power stations at Baru Pandansimo Beach of Bantul, Yogyakarta, as an energy source to produce hydrogen as a storage energy system. The simulations are done using HOMER software were carried out in three photovoltaic power station scenarios: fixed-tilt, single-axis tracker, and dual-axis tracker, and showed that the fixed-tilt photovoltaic power station scenario is the most optimal design and architecture. With total capacity reaching 7.8 MWp potential to be built at Baru Pandansimo, it could generate 11,657,704 KWh/year electrical energy with an NPC value of USD 8.29 M, and a COE of 0.0420 USD/KWh. This electrical energy could produce 213,288.06 kilograms of H2 at a 2.3 USD/kg production cost. ","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130389678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UTILIZATION OF OIL PALM EMPTY FRUIT BUNCHES AS MULCH IN COMMUNITY OWNED OIL PALM PLANTATIONS (CASE STUDY IN SIMARDONA VILLAGE, NORTH SUMATRA) 油棕空果束作为地膜在社区油棕种植园中的应用(以北苏门答腊岛simardona村为例)
Pub Date : 2021-12-30 DOI: 10.22146/ajse.v5i2.71999
Annisa Fitri Harahap, M. Hidayat, Suhanan Suhanan
Solid Waste Oil Palm Empty Fruit Bunches have high nutrients, which significantly determine oil palm growth rate and production. Each nutrient has its role and can show specific symptoms in plants if their availability in the soil is very lacking. Dry oil palm land and the difficulty of procuring chemical fertilizers for the community that owns oil palm plantations in Simardona Village are expected to be overcome by the use of OPEFB. Utilization of Oil Palm Empty Bunches as Mulch was done manually in 4 research scenarios. Scenario 1 uses 2 kg of chemical fertilizers plus 250 kg of OPEFB, scenario 2 uses 2 kg of chemical fertilizers plus 300 kg of OPEFB, scenario 3 uses 2 kg of chemical fertilizers plus 350 kg of OPEFB, and scenario 4 uses 2 kg of chemical fertilizers plus 400 kg of OPEFB.The results obtained are that the humidity or moisture has increased from a value of 1 to 4. Therefore, it can be seen that the effect obtained from the use of more OPEFB makes the humidity higher. The calculation of the total cost of using OPOPEFB as mulch is obtained from the sum of the price of chemical fertilizers, the price of OPOPEFB, and workers' wages. The total cost after utilization of TKKS is IDR854,000.00. The total cost before using TKKS was IDR441,600,000. The difference in costs before and after the utilization of TKKS is IDR412,400.00, an increase in costs of 48%. The cost of using TKKS is higher than before using TKKS. The total harvest obtained before the use of OPEFB is 2,000 kg or IDR4,900,000. Meanwhile, after using OPEFB, the total yield obtained was 2,700 kg or IDR6,615,000. Production income increased by 26%.
固体废油棕空果串具有较高的营养成分,对油棕的生长速度和产量有显著的决定作用。每一种养分都有它的作用,如果它们在土壤中的可用性非常缺乏,它们会在植物中表现出特定的症状。使用OPEFB有望克服Simardona村油棕土地干燥和拥有油棕种植园的社区难以获得化肥的问题。在4个研究场景下,采用人工方法对油棕空丛进行地膜利用。场景1使用2公斤化肥加250公斤OPEFB,场景2使用2公斤化肥加300公斤OPEFB,场景3使用2公斤化肥加350公斤OPEFB,场景4使用2公斤化肥加400公斤OPEFB。得到的结果是湿度或水分从1增加到4。因此,可以看出,使用更多的OPEFB所获得的效果使湿度更高。使用OPOPEFB作为地膜的总成本由化肥价格、OPOPEFB价格和工人工资的总和计算得出。TKKS使用后的总成本为85.4万印尼盾。使用TKKS之前的总成本为44160万印尼盾。TKKS使用前后的成本差异为IDR412,400.00,成本增加了48%。使用TKKS的成本比使用TKKS之前要高。在使用OPEFB之前获得的总收获量为2,000公斤或4,900,000印尼盾。同时,使用OPEFB后,获得的总产量为2,700 kg或6,615,000印尼盾。生产收入增长26%。
{"title":"UTILIZATION OF OIL PALM EMPTY FRUIT BUNCHES AS MULCH IN COMMUNITY OWNED OIL PALM PLANTATIONS (CASE STUDY IN SIMARDONA VILLAGE, NORTH SUMATRA)","authors":"Annisa Fitri Harahap, M. Hidayat, Suhanan Suhanan","doi":"10.22146/ajse.v5i2.71999","DOIUrl":"https://doi.org/10.22146/ajse.v5i2.71999","url":null,"abstract":"Solid Waste Oil Palm Empty Fruit Bunches have high nutrients, which significantly determine oil palm growth rate and production. Each nutrient has its role and can show specific symptoms in plants if their availability in the soil is very lacking. Dry oil palm land and the difficulty of procuring chemical fertilizers for the community that owns oil palm plantations in Simardona Village are expected to be overcome by the use of OPEFB. Utilization of Oil Palm Empty Bunches as Mulch was done manually in 4 research scenarios. Scenario 1 uses 2 kg of chemical fertilizers plus 250 kg of OPEFB, scenario 2 uses 2 kg of chemical fertilizers plus 300 kg of OPEFB, scenario 3 uses 2 kg of chemical fertilizers plus 350 kg of OPEFB, and scenario 4 uses 2 kg of chemical fertilizers plus 400 kg of OPEFB.The results obtained are that the humidity or moisture has increased from a value of 1 to 4. Therefore, it can be seen that the effect obtained from the use of more OPEFB makes the humidity higher. The calculation of the total cost of using OPOPEFB as mulch is obtained from the sum of the price of chemical fertilizers, the price of OPOPEFB, and workers' wages. The total cost after utilization of TKKS is IDR854,000.00. The total cost before using TKKS was IDR441,600,000. The difference in costs before and after the utilization of TKKS is IDR412,400.00, an increase in costs of 48%. The cost of using TKKS is higher than before using TKKS. The total harvest obtained before the use of OPEFB is 2,000 kg or IDR4,900,000. Meanwhile, after using OPEFB, the total yield obtained was 2,700 kg or IDR6,615,000. Production income increased by 26%.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121665514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FEASIBILITY ANALYSIS AND DESIGN PROJECTION OF WASTE MANAGEMENT SYSTEM IN BALIKPAPAN 八里巴湾垃圾处理系统的可行性分析与设计规划
Pub Date : 2021-12-30 DOI: 10.22146/ajse.v5i2.72021
Ubet Khoirudin, M. Hidayat, R. B. Cahyono
Waste generation in Balikpapan from 2016 to 2020 continues to increase by 443 to 482 tons per day. One of the efforts of DLH Balikpapan is to optimize the MRF and ITF facilities, as well as to analyze how much these facilities are needed to reduce waste generation at final disposal sites (Landfill) Manggar and enhance the durability of the landfill. The approach utilized in this study employs direct observation methods, such as data collection results on the amount of waste input and output, and secondary data, such as geometric methods and all data on waste generation in Balikpapan. The calculation of the feasibility and effectiveness analysis of the MRF inorganic waste processing facility using the recovery factor approach obtained 60.3%, while the ITF organic waste processing got a result of 45.7%.With the current condition, Manggar Landfill can be used until the end of 2025, Manggar Landfill can be used until the end of 2025. By optimizing garbage processing in these two facilities, the MRF has expanded the service coverage to 3 urban villages and has a projected age of up to 2033. It will be optimized for ITF processing facilities by utilizing process biogas. The primary objective of this research is to determine how many additional processing sites are needed starting with household waste sources thus, the calculation findings show that an additional six units of MRF facilities and ten units of ITF facilities are required. As a result, with the addition of inorganic and organic waste processing sites, Manggar's Landfill estimated age is extended until 2028.
从2016年到2020年,巴厘巴盘的废物产生量每天继续增加443至482吨。DLH Balikpapan的工作之一是优化MRF和ITF设施,并分析需要多少这些设施来减少最终处置地点(堆填区)Manggar的废物产生并提高堆填区的耐久性。本研究使用的方法采用直接观察方法,如关于废物投入和产出数量的数据收集结果,以及二次数据,如几何方法和关于Balikpapan废物产生的所有数据。采用回收系数法对MRF无机废物处理设施的可行性和有效性分析计算结果为60.3%,而ITF有机废物处理的可行性和有效性分析结果为45.7%。按照目前的情况,芒格垃圾填埋场可以使用到2025年底。通过优化这两个设施的垃圾处理,MRF已将服务范围扩大到3个城中村,预计使用寿命可达2033年。它将通过利用过程沼气来优化ITF处理设施。这项研究的主要目的是确定从家庭废物来源开始需要多少额外的处理场,因此,计算结果表明,需要额外的6个单元的核磁共振燃料设施和10个单元的创新技术燃料设施。因此,随着无机和有机废物处理场的增加,曼格尔垃圾填埋场的估计年龄将延长到2028年。
{"title":"FEASIBILITY ANALYSIS AND DESIGN PROJECTION OF WASTE MANAGEMENT SYSTEM IN BALIKPAPAN","authors":"Ubet Khoirudin, M. Hidayat, R. B. Cahyono","doi":"10.22146/ajse.v5i2.72021","DOIUrl":"https://doi.org/10.22146/ajse.v5i2.72021","url":null,"abstract":"Waste generation in Balikpapan from 2016 to 2020 continues to increase by 443 to 482 tons per day. One of the efforts of DLH Balikpapan is to optimize the MRF and ITF facilities, as well as to analyze how much these facilities are needed to reduce waste generation at final disposal sites (Landfill) Manggar and enhance the durability of the landfill. The approach utilized in this study employs direct observation methods, such as data collection results on the amount of waste input and output, and secondary data, such as geometric methods and all data on waste generation in Balikpapan. The calculation of the feasibility and effectiveness analysis of the MRF inorganic waste processing facility using the recovery factor approach obtained 60.3%, while the ITF organic waste processing got a result of 45.7%.With the current condition, Manggar Landfill can be used until the end of 2025, Manggar Landfill can be used until the end of 2025. By optimizing garbage processing in these two facilities, the MRF has expanded the service coverage to 3 urban villages and has a projected age of up to 2033. It will be optimized for ITF processing facilities by utilizing process biogas. The primary objective of this research is to determine how many additional processing sites are needed starting with household waste sources thus, the calculation findings show that an additional six units of MRF facilities and ten units of ITF facilities are required. As a result, with the addition of inorganic and organic waste processing sites, Manggar's Landfill estimated age is extended until 2028.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130636825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PRODUCT CLUSTERING ANALYSIS ON THE MARKETPLACE USING K-MEANS APPROACH (CASE STUDY: SHOPEE) 基于k -均值方法的市场产品聚类分析(以shopee为例)
Pub Date : 2021-10-31 DOI: 10.22146/ajse.v5i2.69217
Maria Arista Ulfa, S. Sulistyo, M. Hidayat
The business world has experienced a paradigm shift towards a more modern concept. Many business processes are carried out through the internet or commonly known as e-commerce, by utilizing a platform known as Marketplace. One of the marketplaces that are quite well-known and in great demand in Indonesia is Shopee. The high online shopping activity in the current marketplace indirectly encourages business actors to understand the online market. However, one of the obstacles that are quite often faced by sellers, especially new sellers who are starting to enter the digital realm, is the emergence of confusion in the selection of products to be sold due to a lack of information regarding the demand for what products are in demand in the market.The process of searching for information related to the demand for products of interest is carried out through clustering analysis to find out the groups of products that are of interest to those that are less attractive to the public. The data used is product data from 6 categories in the Shopee market which was taken using web scraping techniques. The clustering processes used the K-means approach by determining the number of K and the optimal center point through the calculation of Sum Square Error (SSE) by looking at the elbow graph. The final results show the optimal number of K clusters that are different in each category, namely in category women’s clothing, men’s clothing, and electronics are at K=4 then for products in the category of Muslim fashion, care & beauty and household appliances are at K=3. Based on the validation results using the Davies Bouldin Index, values were obtained in6 categories, namely 0.391, 0.438, 0.414, 0.357, 0.387, and 0.377, which means that the cluster structure and the level of information formed in each category using the K-Means method is quite good.
商业世界已经经历了向更现代概念的范式转变。许多业务流程都是通过互联网或通常称为电子商务的平台,利用称为Marketplace的平台来执行的。Shopee是印尼一个非常有名且需求量很大的市场。当前市场上的高在线购物活动间接地鼓励了商业参与者了解在线市场。然而,卖家经常面临的障碍之一,尤其是那些开始进入数字领域的新卖家,是由于缺乏市场对什么产品需求的信息,在选择要销售的产品时出现混乱。通过聚类分析对感兴趣的产品需求相关信息进行搜索的过程,找出对公众吸引力较低的产品感兴趣的产品组。使用的数据是Shopee市场上6个类别的产品数据,这些数据是通过网络抓取技术获取的。聚类过程采用K-means方法,通过观察肘形图计算和方误差(Sum Square Error, SSE)来确定K的个数和最优中心点。最终结果表明,每个品类中K类的最优数量是不同的,即女装、男装、电子类的K=4,而穆斯林时尚、护理美容、家电类的K=3。根据Davies Bouldin Index的验证结果,得到了0.391、0.438、0.414、0.357、0.387、0.377 6个类别的值,说明使用K-Means方法在每个类别中形成的聚类结构和信息水平都比较好。
{"title":"PRODUCT CLUSTERING ANALYSIS ON THE MARKETPLACE USING K-MEANS APPROACH (CASE STUDY: SHOPEE)","authors":"Maria Arista Ulfa, S. Sulistyo, M. Hidayat","doi":"10.22146/ajse.v5i2.69217","DOIUrl":"https://doi.org/10.22146/ajse.v5i2.69217","url":null,"abstract":"The business world has experienced a paradigm shift towards a more modern concept. Many business processes are carried out through the internet or commonly known as e-commerce, by utilizing a platform known as Marketplace. One of the marketplaces that are quite well-known and in great demand in Indonesia is Shopee. The high online shopping activity in the current marketplace indirectly encourages business actors to understand the online market. However, one of the obstacles that are quite often faced by sellers, especially new sellers who are starting to enter the digital realm, is the emergence of confusion in the selection of products to be sold due to a lack of information regarding the demand for what products are in demand in the market.The process of searching for information related to the demand for products of interest is carried out through clustering analysis to find out the groups of products that are of interest to those that are less attractive to the public. The data used is product data from 6 categories in the Shopee market which was taken using web scraping techniques. The clustering processes used the K-means approach by determining the number of K and the optimal center point through the calculation of Sum Square Error (SSE) by looking at the elbow graph. The final results show the optimal number of K clusters that are different in each category, namely in category women’s clothing, men’s clothing, and electronics are at K=4 then for products in the category of Muslim fashion, care & beauty and household appliances are at K=3. Based on the validation results using the Davies Bouldin Index, values were obtained in6 categories, namely 0.391, 0.438, 0.414, 0.357, 0.387, and 0.377, which means that the cluster structure and the level of information formed in each category using the K-Means method is quite good.","PeriodicalId":280593,"journal":{"name":"ASEAN Journal of Systems Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130283088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
ASEAN Journal of Systems Engineering
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1