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Forecasting Daily Visitors and Menu Demands in an Indonesian Chain Restaurant using Support Vector Regression Machine 用支持向量回归机预测印尼连锁餐厅日客流量及菜单需求
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466036
Makmur A. Zhào, R. Jayadi
Demand fluctuation is a critical factor in the everyday operating choices made by a restaurant. The aim of this study is to investigate menu demand forecasting in restaurants using Multiple Regression and Support Vector Regression Machine (SVR) algorithms to forecast potential visitors and menu demand using point-of-sale (POS) data. A model for predicting store-specific demand is proposed that takes into account variables such as seasonality, public holidays, and order peak times. The model's verification using fundamental restaurant data demonstrates that SVR will produce a percentage error of as low as 14.84 percent when forecasting restaurant guests and 31.2 percent when predicting restaurant menu demand. The results demonstrate that this approach is practical for forecasting revenue and consumer counts, as well as demonstrating that managers will learn about the variables that influence customer behaviors. There are extensive discussions and suggestions for potential studies on predicting and planning management in chain restaurant operations.
需求波动是餐馆日常经营选择的一个关键因素。本研究的目的是利用多元回归和支持向量回归机(SVR)算法来预测餐厅的菜单需求,并利用销售点(POS)数据来预测潜在的游客和菜单需求。提出了一个预测特定商店需求的模型,该模型考虑了季节性、公共假日和订单高峰时间等变量。使用基本餐厅数据的模型验证表明,SVR在预测餐厅客人时将产生低至14.84%的百分比误差,在预测餐厅菜单需求时将产生31.2%的百分比误差。结果表明,这种方法对于预测收入和消费者数量是实用的,同时也表明管理者将了解影响客户行为的变量。对连锁餐厅经营中的预测与计划管理进行了广泛的讨论和建议。
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引用次数: 3
Forecasting Raw Material Inventory Using the Single Moving Average and Supplier Selection Using the Analytical Hierarchy Process 用单一移动平均线预测原材料库存,用层次分析法选择供应商
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466081
A. Sinaga, E. Astuty
This study aims to help companies to be able to estimate the procurement of raw materials for production, not having stock of raw materials in the warehouse, and determine which suppliers can send goods quickly with affordable prices and good quality. Thus, the company is not optimal in the procurement of raw materials and the selection of appropriate raw material suppliers. In addition, the research aims to optimize the procurement of raw materials that can be used in forecasting in controlling raw materials and decision support systems for the selection of raw material suppliers. The method used to estimate the availability of raw materials is the Simple Moving Average and Analytical Hierarchy Process (AHP) method to determine suppliers. The results of this study indicate that the average percentage of forecast error is 4.17%. Whereas for supplier selection, the AHP method that is used can recommend which suppliers are eligible to be chosen based on predetermined criteria, then the results are sorted by highest ranking. It is expected that the results of this study can be used as a reference for further development, for example by creating information systems that can help companies.
本研究的目的是帮助公司能够估计生产原材料的采购,没有库存的原材料在仓库,并确定哪些供应商可以快速发送货物,价格合理,质量好。因此,公司在原材料的采购和合适的原材料供应商的选择上并不是最优的。此外,研究旨在优化原材料采购,可用于原材料预测控制和原材料供应商选择的决策支持系统。估计原材料的可用性的方法是简单移动平均和层次分析法(AHP)的方法来确定供应商。研究结果表明,预测误差的平均百分比为4.17%。而对于供应商的选择,采用AHP方法可以根据预先确定的标准推荐哪些供应商有资格被选择,然后根据最高排名对结果进行排序。期望这项研究的结果可以作为进一步发展的参考,例如创建可以帮助公司的信息系统。
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引用次数: 0
Measurement of Attenuation and Velocity on Ultrasonic Waves in Adulteration of Honey to Find Their Correlation 蜂蜜掺假过程中超声波衰减速度测定及其相关性研究
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466024
Ivma Salsabila, Darmawan Hidayat, Mohammad Taufik
Honey testing is needed to find out whether the honey is real honey or mixed honey in order to avoid side effects that endanger its users. In this final project using a non-destructive testing method with ultrasonic wave transmission testing. 1MHz frequency ultrasonic waves are emitted by a transmitter and received by a receiver opposite each other with a distance of 9.48mm. The compound used is water and liquid sugar mixed with Perhutani honey with longan flowers with a concentration variation of 0-90 wt%. The parameters used in testing with this ultrasonic wave transmission method are the wave velocity and attenuation coefficient. Speed is calculated from the travel time measured by the phase difference of the sinusoid ultrasonic wave between receiver and transmitter. The attenuation is calculated by comparing the amplitude of the ultrasonic wave receiver with the transmitter. The test results show that the greater the concentration of the mixing substance, the smaller the velocity and attenuation value. Based on the results of the analysis, it can be concluded that the value of the attenuation parameter and the velocity of the ultrasonic waves propagated on honey with the adulterated substance shows a strong correlation.
需要对蜂蜜进行检测,以确定蜂蜜是真正的蜂蜜还是混合的蜂蜜,以避免危害其使用者的副作用。在这个最终的项目中采用了超声波透射检测的无损检测方法。1MHz频率的超声波由发射器发射,接收器接收,两者相距9.48mm。所使用的化合物是水和液体糖与龙眼花白胡塔尼蜂蜜混合,浓度变化为0-90 wt%。超声波透射法测试中使用的参数是波速和衰减系数。速度是由正弦波在接收机和发射机之间的相位差测量的行程时间来计算的。衰减是通过比较超声波接收器和发射器的振幅来计算的。试验结果表明,混合物质浓度越大,速度和衰减值越小。根据分析结果,衰减参数值与掺假物质在蜂蜜上传播的超声波速度呈较强的相关性。
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引用次数: 1
Implementation of Cloud Based Action Recognition Backend Platform 基于云的动作识别后端平台的实现
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466068
Luqmanul Hakim Iksan, M. I. Awal, Rizky Zull Fhamy, A. Pratama, D. Basuki, S. Sukaridhoto
The Internet of Things (IoT) growth are rapidly in various fields such as industry 4.0, smart cities, and smart homes. Implementation of IoT for electronic assistance had been researched to increase the longevity of human life. However, not all IoT implementation as human life assistance provides action recognition monitoring on multiple elderly people, provide information such as real-time action monitoring, and real-time streaming in a mobile application. Therefore, this research intends to create a system that can receive and provide information on each elderly people who registered. The Action Recognition Backend Platform will be working as cloud computing to receive and manage input data from Edge Computing Action Recognition. This platform integrated Deep Learning, Data Analytics, Big Data Warehouse that implemented Extract, Transform, and Load (ETL) methods, communication services with MQTT, and Kafka Streaming Processor. The test result showed that the edge computing action recognition got better model accuracy performance from our last model [1], which can predict with 50,7% accuracy in 0.5 confidence threshold. Moreover, the backend platform had been successfully implemented a simple IoT paradigm and got an average delivery time of MQTT communication at 204ms, for streaming data process took an average delay of 680ms.
物联网(IoT)在工业4.0、智慧城市和智能家居等各个领域迅速增长。研究将物联网应用于电子辅助,以延长人类寿命。然而,并不是所有的物联网实施作为人类生命援助都提供对多个老年人的动作识别监控,提供实时动作监控等信息,并在移动应用程序中提供实时流。因此,本研究打算建立一个系统,可以接收并提供每个登记的老年人的信息。动作识别后端平台将作为云计算来接收和管理来自边缘计算动作识别的输入数据。该平台集成了深度学习、数据分析、实现提取、转换和加载(ETL)方法的大数据仓库、MQTT通信服务和Kafka流处理器。测试结果表明,边缘计算动作识别比我们上一个模型[1]获得了更好的模型精度性能,在0.5个置信度阈值下,预测准确率达到50.7%。此外,后端平台成功实现了简单的物联网范式,MQTT通信的平均交付时间为204ms,流数据处理的平均延迟为680ms。
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引用次数: 2
Detection of Copy Move Forgery in Medical Images Using Deep Learning 基于深度学习的医学图像复制移动伪造检测
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466005
M. Qadir, Samabia Tehsin, Sumaira Kausar
Since the advancements in technology and IT has revolutionized the world, digital images have come out with crucial importance. With the fruitful advancements and purposes, the authenticity and security breaches in digital images are simultaneously increasing because many editing software and tools give easy access to manipulate and temper the images, resulting in the change of complete information. Copy Move Forgery is the simplest way of tempering images in which an object is copied, removed, and replaced in the same image. As the medical field is too sensitive and even a minor manipulation can produce disastrous results, this study proposes an algorithm specifically designed to detect copy move forgery in medical images, especially when the world has gone towards telemedicine due to the outbreak of COVID-19. The proposed algorithm is based on CNN working on the whole image. The algorithm works in three phases, i.e., pre-processing, feature extraction, and classification. The proposed algorithm has given the accuracy of 89 percent on the dataset that has been created due to the publicly non-availability of forged medical images dataset. The dataset includes the images from abdominal, lungs, transverse view of lungs, chest abdominal, lungs transverse, lungs ap, vertebrae, and transverse heart.
由于技术和信息技术的进步已经彻底改变了世界,数字图像已经出现了至关重要的意义。随着技术的不断进步和目的的不断提高,数字图像的真实性和安全性也在不断增加,因为许多编辑软件和工具可以很容易地对图像进行操纵和篡改,导致完整信息的变化。复制移动伪造是篡改图像最简单的方法,在同一图像中复制,删除和替换对象。由于医学领域过于敏感,即使是轻微的操作也会产生灾难性的结果,本研究提出了一种专门用于检测医学图像复制伪造的算法,特别是在全球因COVID-19爆发而走向远程医疗的情况下。该算法基于CNN对整个图像的处理。该算法分为预处理、特征提取和分类三个阶段。该算法在伪造医学图像数据集无法公开使用的情况下创建的数据集上,准确率达到89%。该数据集包括来自腹部、肺部、肺部横向视图、胸部腹部、肺部横向视图、肺部ap、椎骨和横向心脏的图像。
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引用次数: 0
Enhancement Accuracy for Indoor Positioning System on Non-Line of Sight Channel using Visible Light Communications 利用可见光通信提高非视线通道室内定位系统精度
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466079
Brian Pamukti, K. Sujatmoko, Natasia Sekarning Tiyas
The Visible Light Communication (VLC) which uses Light Emitting Diode (LED) as a transmitter, not only functions for lighting and communication, but can determine the position of an object. The VLC system has higher accuracy compared to the Global Positioning System (GPS) system which uses satellite signals to obtain the coordinates of objects on earth. The VLC system can detect the position of objects of a smaller size. The Received Signal Strength (RSS) method can be used to determine the location of the object coordinates. This study has compared the results of the positioning error and accuracy values in three scenarios with different transmitter coordinates and using the Line of Sight (LOS) and Non-Line of Sight (NLOS) transmission channels. Using extensive simulation, we obtain that three scenarios through the LOS channel yields an average minimum positioning error value of 7.62E-16 meters with an accuracy of 99%. The three scenarios used in the NLOS channel have an average minimum positioning error value of 0.20 meters in the third scenario with an accuracy value of 99.42%. The simulation results show that the position of the transmitter coordinates affects the positioning error value and the accuracy value. The coordinates of the transmitter that have the highest accuracy value are (2.25,2,3), (-2,2.25,3), (0.25,2.25,3).
使用发光二极管(LED)作为发射器的可见光通信(VLC),不仅具有照明和通信的功能,而且可以确定物体的位置。与利用卫星信号获取地球上物体坐标的全球定位系统(GPS)相比,VLC系统具有更高的精度。VLC系统可以检测较小尺寸物体的位置。接收信号强度(RSS)方法可用于确定对象坐标的位置。本研究比较了在不同发射机坐标下,使用视线(LOS)和非视线(NLOS)发射通道的三种场景下的定位误差和精度值。通过广泛的仿真,我们得到三种场景下通过LOS通道的平均最小定位误差值为7.62E-16 m,精度为99%。NLOS通道使用的三种场景中,第三种场景的平均最小定位误差值为0.20 m,精度值为99.42%。仿真结果表明,发射机坐标的位置影响定位误差值和精度值。具有最高精度值的发射机坐标为(2.25,2,3)、(-2,2.25,3)、(0.25,2.25,3)。
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引用次数: 1
Modeling Indonesian COVID-19 Contact Tracing using Social Network Analysis 使用社交网络分析建模印度尼西亚COVID-19接触者追踪
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466052
Lathifah Alfat, Ananda Dwi Oktavianto, Barry Samuel Sirait, Muhammad Mulberth Rhenaldo
As coronavirus SARS-CoV-2 emerged around the world, researchers are looking for the best method to decrease the spread. Testing, Tracing, Treatment, or 3T is a rule to control the pandemic COVID-19. However, 3T in Indonesia is still poor, testing capacity is still low as well as the tracing rate. This research aims to model the Indonesian Corona Virus spread from a small cluster in society. As the difficulty rises in acquiring real data, the data are synthetically generated, as well as its relationship. This paper applied Social Network Analysis with Network X, a Python library. The modeling method started with creating the graph and its community graph, then calculate the betweenness centrality to generate Page Rank based graph. This paper shows that the top 3 of the highest Page Rank is LUP with the value of 0.012356, MIH with 0.012035 points, and WAGP with 0.011824. The relationship between people impacts contacts tracing in the graph. The higher rank of a person, the higher chance he or she transmitted the virus or got infected by the virus.
随着冠状病毒SARS-CoV-2在世界各地出现,研究人员正在寻找减少传播的最佳方法。检测、追踪、治疗或3T是控制COVID-19大流行的规则。但是印尼的3T仍然很差,检测能力仍然很低,追踪率也很低。这项研究旨在模拟印度尼西亚冠状病毒从社会中的小集群传播。随着真实数据获取难度的提高,对数据进行综合生成,并对数据之间的关系进行综合生成。本文使用Python库Network X进行社会网络分析。该建模方法首先创建图及其社区图,然后计算中间度中心性,生成基于页面排名的图。本文表明,页面排名最高的前3名分别是:LUP为0.012356分,MIH为0.012035分,WAGP为0.011824分。人与人之间的关系会影响图中的接触者追踪。一个人的地位越高,他或她传播病毒或被病毒感染的可能性就越大。
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引用次数: 0
Core Power Modelling of High-Temperature Engineering Test Reactor (HTTR) Using Nonlinear Least Squares Method for Parameter Estimation 高温工程试验堆堆芯功率的非线性最小二乘法参数估计
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466041
A. Istiqomah, Aries Subiantoro
The high-temperature gas cooled-reactor (HTGR) has been constructed in Japan and produces rated power operation and hydrogen, contributing to the development of future energy strategies. One type of HTGR, the high-temperature engineering test reactor (HTTR), uses long hexagonal fuel assemblies. The HTTR is a graphite-moderated, helium-gas-cooled reactor with thermal power of 30 MW, an inlet coolant temperature of 395° C, and an outlet coolant temperature of 950° C. In this paper, a nonlinear mathematical model of the nuclear reactor core was derived in derivative form using fundamental principles. Unknown parameter data could be estimated with physics equations using the nonlinear least squares curve fitting method. The validation between the mathematical model and experimental data of the plant-obtained simulation response indicates that the model could have been used for further optimization and control. The simulation-response results showed that the mathematical model with estimated parameters has an accuracy above 89%. Consequently, based on the simulation response, the mathematical model could be used as the HTTR continues to function.
高温气冷堆(HTGR)已在日本建成,生产额定功率运行和氢气,有助于未来能源战略的发展。高温高温堆的一种,高温工程试验堆(HTTR),使用长六边形燃料组件。HTTR是一种石墨慢化、氦气冷反应堆,热功率为30 MW,进口冷却剂温度为395℃,出口冷却剂温度为950℃。本文利用基本原理,以导数形式推导了核反应堆堆芯的非线性数学模型。利用非线性最小二乘曲线拟合方法,利用物理方程对未知参数数据进行估计。数学模型与装置仿真响应实验数据的验证表明,该模型可用于进一步优化控制。仿真响应结果表明,该数学模型的估计参数精度在89%以上。因此,基于模拟响应,可以在http继续工作时使用数学模型。
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引用次数: 0
EEG Brainmapping Analysis of Mental Arithmetic Task Performed by Drug Convicts 吸毒犯心算任务的脑电图脑图分析
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466035
Kenny, N. S. Syafei, D. Novita, A. Turnip
Drug convicts are thought to have decreased performance of the brain to think, concentrate, and carry out logical functions. To monitor how the drug could affect the human brain, mental arithmetic is performed, and the EEG signals are recorded. In this study, addition task performance men show that some subjects have different counting accuracy. Mental arithmetic was monitored by International 10/20 system EEG with 19 scalp electrodes. The raw EEG data was processed and plotted to 2d mapping based on the power spectrum. The spectrum changes seen in Brain mapping, show how the mental arithmetic process takes place. The results of brain mapping can be a parameter that indicates the calculation process so that it can show the quality of the brain's work. Independent component label classifier performed, subject 7 obtain 79,8%, subject12 obtain 94,3%, subject15 obtain 92,3% accuracy as brain label.
人们认为,吸毒犯的大脑在思考、集中注意力和执行逻辑功能方面的能力下降。为了监测药物对人脑的影响,研究人员进行了心算,并记录了脑电图信号。在本研究中,加法任务表现男性显示出一些被试有不同的计数准确率。心算监测采用国际10/20系统EEG,头皮电极19个。对原始脑电数据进行处理,绘制成基于功率谱的二维映射图。在大脑绘图中看到的频谱变化显示了心算过程是如何发生的。大脑映射的结果可以是一个参数,表明计算过程,从而可以显示大脑的工作质量。进行独立分量标签分类,受试者7获得79.8%,受试者12获得94.3%,受试者15获得92.3%的脑标签准确率。
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引用次数: 0
Assistive Smart Home Environment using Head Gestures and EEG Eye Blink Control Schemes 使用头部手势和脑电图眨眼控制方案的辅助智能家居环境
Pub Date : 2021-04-28 DOI: 10.1109/AIMS52415.2021.9466031
Muzzamil Ghaffar, S. Sheikh, Noman Naseer, Fraz Ahmed
Field of Assistive Smart Homes has emerged with the aim of enabling the physically challenged, the elderly or those with constraint motion and to restore their capability of performing necessary daily life tasks by providing required assistance using modern technological tools. Objective of this work is to study possibility of using various available technological tools to enable such people perform independently in main stream life by giving them control of their environment and movement. The said objective is achieved using hybrid physiological gestures, such as, head movement and eye blinks, as even quadriplegic patients can perform these gestures easily. The orientation or movement of head is sensed by a head set embedded with an Inertial Measurement Unit (IMU) and Linear Discriminant Analysis (LDA) is used to recognize the intended command. Eye blinks are detected by sensing Electroencephalography (EEG) signals. After pre-processing, EEG signals are classified on the basis of various signal properties and converted into commands. With the combination of head orientation sensing and eye blink signals, a hierarchy of control commands is generated to control lights, fans, security lock and wheel chair movement. Using the prototype headset, the home environment is simulated and verified in Matlab environment and a GUI is designed for ease of user. The results show the feasibility of the designed system in real time, with average system accuracy of approximately 81.48%, making this design a good and reasonably priced choice for implementation in Assistive Smart Homes, especially in developing countries with low per capita income.
辅助智能家居领域应运而生,其目的是通过使用现代科技工具,为残疾人士、老年人或行动不便的人士提供所需的协助,使他们恢复执行日常生活任务的能力。这项工作的目的是研究使用各种可用的技术工具的可能性,使这些人能够通过控制他们的环境和运动来独立地在主流生活中表演。上述目标是通过混合生理手势实现的,例如头部运动和眨眼,因为即使是四肢瘫痪的患者也可以轻松地完成这些手势。头部的方向或运动由嵌入惯性测量单元(IMU)的头戴式耳机感知,并使用线性判别分析(LDA)来识别预期的命令。眨眼是通过感应脑电图(EEG)信号来检测的。脑电信号经过预处理后,根据信号的各种特性进行分类,并转换成命令。结合头部方向感应和眨眼信号,生成控制命令的层次结构来控制灯光、风扇、安全锁和轮椅的运动。利用原型头戴式耳机,在Matlab环境中对家庭环境进行了仿真和验证,并设计了图形用户界面,方便用户使用。结果表明所设计的系统是实时可行的,平均系统精度约为81.48%,这使得该设计成为在辅助智能家居中实施的良好且价格合理的选择,特别是在人均收入较低的发展中国家。
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引用次数: 4
期刊
2021 International Conference on Artificial Intelligence and Mechatronics Systems (AIMS)
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