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Development of Early Stage Diabetes Prediction Model Based on Stacking Approach 基于叠加法的早期糖尿病预测模型的建立
IF 1.2 Q4 Computer Science Pub Date : 2023-05-12 DOI: 10.31803/tg-20211119133806
Ilkay Cinar, Yavuz Selim Taspinar, M. Koklu
Diabetes is a disease that may pose direct or indirect risks in terms of human health. Early diagnosis can minimize the potential harm of this disease to the body and reduce the probability of death. For this reason, laboratory tests are performed on diabetic patients. The analysis of these tests enables the diagnosis of diabetes. The aim of this study is so quickly diagnose diabetes by using data obtained from patients with machine learning methods. In order to diagnose the disease, k-nearest neighbor (k-NN), logistic regression (LR), random forest (RF) models and the stacking meta model which is created by combining these three models were used. The dataset used in the research includes test samples taken from 520 people. The dataset has 17 features, including 16 input features and 1 output feature. As a result of the classification through this dataset, different classification results were obtained from the models. The classification success of the models LR, k-NN, RF and stacking were found to be 91.3%, 91.7%, 97.9% and 99.6%, respectively. F-score, precision and recall performance metrics were utilized for a detailed analysis of the models' classification results. The obtained results revealed that the stacking model has a sufficient level to be used as a decision support system in the early diagnosis of diabetes.
糖尿病是一种可能对人类健康造成直接或间接风险的疾病。早期诊断可以最大限度地减少这种疾病对身体的潜在危害,降低死亡概率。因此,对糖尿病患者进行实验室检查。对这些试验的分析有助于诊断糖尿病。这项研究的目的是通过使用机器学习方法从患者身上获得的数据来快速诊断糖尿病。为了诊断疾病,使用k-最近邻(k-NN)、逻辑回归(LR)、随机森林(RF)模型以及将这三种模型组合而成的叠加元模型。研究中使用的数据集包括520人的测试样本。数据集有17个特征,包括16个输入特征和1个输出特征。通过该数据集进行分类,得到了不同的模型分类结果。LR、k-NN、RF和stacking模型的分类成功率分别为91.3%、91.7%、97.9%和99.6%。F-score,精度和召回性能指标被用于模型分类结果的详细分析。结果表明,该叠加模型具有足够的水平,可以作为糖尿病早期诊断的决策支持系统。
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引用次数: 0
Exergy Analysis of Thermal Power Plant for Three Different Loads 火电厂三种不同负荷的火用分析
IF 1.2 Q4 Computer Science Pub Date : 2023-05-12 DOI: 10.31803/tg-20211214151555
Nurdin Ćehajić
This paper presents the energy and exergy analysis of thermal power plant Tuzla in Tuzla, Bosnia and Herzegovina. The main aim of this paper is to analyze the components of a 200 MW steam power plant unit in order to identify and quantify the sites with the highest exergy losses and to calculate exergy efficiency values of all components when operating at nominal load. The influence of the change in ambient temperature and block load on the value of exergy losses and exergy efficiency was taken into analysis. The analysis further includes the impact of steam block operation without high-pressure and low-pressure heaters on the exergy efficiency of the steam block. The goal of the analysis is to determine the functional state of individual steam block components after a long period of exploitation and maintenance in order to take appropriate measures to improve their technical performance. Exergy losses during nominal operation of the steam power plant unit are the largest in boiler and amount to 313.42 MW, followed by a turbine with 205.60 MW, condenser 1 with 6.03 MW, condenser 2 with 5.75 MW, while other components of the steam power plant have exergy losses in the range of 0.03 to 2.15 MW. Operation of the unit at nominal load without HPH results in an exergy efficiency decrease from 5.60 to 9.80 %, while in case of operation without HPH and LPH it results in a decrease in exergy efficiency from 9.86 to 16.40 % depending on the pattern used to calculate. The conclusion after the analysis indicates that the biggest exergy losses are in the boiler and turbine and consequently these components have the lowest exergy efficiency values. The increase in ambient temperature has different effects on individual components of the thermal power plant, increasing exergy losses of the boiler while reducing the turbine exergy losses and condensers.
本文介绍了波黑图兹拉图兹拉热电厂的能量和火用分析。本文的主要目的是分析200mw蒸汽发电厂机组的组成,以确定和量化具有最高火用损失的站点,并计算所有组件在额定负荷下运行时的火用效率值。分析了环境温度和块负荷的变化对火用损失值和火用效率的影响。进一步分析了无高压加热器和低压加热器的蒸汽块运行对蒸汽块火用效率的影响。分析的目的是确定各个蒸汽块部件经过长时间的开发和维护后的功能状态,以便采取适当的措施提高其技术性能。蒸汽电厂机组标称运行时火用损失最大的是锅炉,为313.42 MW,其次是汽轮机205.60 MW、凝汽器1 6.03 MW、凝汽器2 5.75 MW,而蒸汽电厂其他部件的火用损失在0.03 ~ 2.15 MW之间。机组在标称负荷下运行时,无高压工况下的火用效率从5.60%下降到9.80%,而在无高压工况和低压工况下运行时,根据计算模式的不同,火用效率从9.86%下降到16.40%。分析结果表明,锅炉和汽轮机的火用损失最大,因此这两个部件的火用效率值最低。环境温度的升高对火电厂的各个部件有不同的影响,增加了锅炉的火用损失,同时减少了汽轮机和冷凝器的火用损失。
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引用次数: 1
Possibilities of Evaluating the Dimensional Acceptability of Workpieces Using Computer Vision 用计算机视觉评价工件尺寸可接受性的可能性
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20221109143423
I. Svalina, D. Turinski, I. Grgić, S. Havrlisan
This paper discusses the possibilities of an automated solution for determining dimensionally accurate and defective products using a computer vision system. In a real industrial environment, research was conducted on a prototype of a quality control machine, i.e. a machine that, based on product images, evaluates whether the product is accurate or defective using computer vision. Various geometric features are extracted from the obtained images of products, on the basis of which a fuzzy inference system based on Fuzzy C-means clustering features is created. The extracted geometric features represent the input variables, and the output variable has two values - true and false. The root mean square error in the evaluation of the accuracy and defectiveness of products ranges between 0.07 and 0.16. Through this research, valuable findings and conclusions were reached for the future research, since this topic is poorly examined in the most renowned databases.
本文讨论了利用计算机视觉系统自动确定尺寸精确和缺陷产品的可能性。在真实的工业环境中,研究了质量控制机的原型,即根据产品图像使用计算机视觉评估产品是否准确或有缺陷的机器。从获得的产品图像中提取各种几何特征,在此基础上建立基于模糊c均值聚类特征的模糊推理系统。提取的几何特征表示输入变量,输出变量有true和false两个值。产品准确性和不合格率评价的均方根误差在0.07 - 0.16之间。通过这项研究,为未来的研究得出了有价值的发现和结论,因为这个主题在大多数知名的数据库中都没有得到充分的研究。
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引用次数: 1
A Black-Box Computational Business Rules Extraction Approach through Test-Driven Development 基于测试驱动开发的黑箱计算业务规则提取方法
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20220826124055
Emad Albassam
Business rules extraction is an important activity in situations in which a software system becomes obsolete and needs to be replaced by a newer system, since the replacing system needs to satisfy the business rules embedded in the legacy software system. In this paper, we investigate an approach in which the computational business rules of a legacy software system can be extracted given previously generated output of the system and without requiring access to the system’s source code. Furthermore, extracted computational business rules are validated automatically with minimal involvement of domain experts through Test-Driven Development (TDD) such that test cases are constructed from historic output of the system. The proposed approach is applied to extract the computational business rules of a large-scale governmental payroll legacy software system. The study results demonstrate that the suggested approach extracted computational business rules van meet a substantial number of test cases. Thus, the efforts involving domain experts can be reduces to analyze such instances.
在软件系统过时并需要被新系统替换的情况下,业务规则提取是一项重要的活动,因为替换系统需要满足嵌入在遗留软件系统中的业务规则。在本文中,我们研究了一种方法,该方法可以在给定系统先前生成的输出的情况下提取遗留软件系统的计算业务规则,而无需访问系统的源代码。此外,通过测试驱动开发(test - driven Development, TDD),在领域专家最少参与的情况下,自动验证提取的计算业务规则,这样测试用例是根据系统的历史输出构建的。将该方法应用于某大型政府工资单遗留软件系统的计算业务规则提取。研究结果表明,该方法提取的计算业务规则满足大量的测试用例。因此,可以减少涉及领域专家的工作来分析此类实例。
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引用次数: 1
An Approach to the Application of the Internet of Things in Logistics 物联网在物流中的应用探讨
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20220609190233
Dominika Crnjac Milić, Irena Dujmenović, Marina Peko
The Internet of Things (IoT) is a technology of the future that is being widely applied in business environment. Companies around the world are starting to apply IoT technologies to ensure the most efficient business possible. The importance of the application of this technology has been particularly evident in improving logistics processes. This paper describes IoT applications in processes such as supply chain management, i.e. control of transport and storage of goods and materials. Examples of smart solutions offered by IoT technology are presented. Various technologies and standards are used in the implementation of the IoT. The scientific community is increasingly researching new technologies such as NB-IoT and 5G, which provide an even greater potential for IoT development. Therefore, this paper shows a comparison of these technologies and explains how IoT devices work with them.
物联网(IoT)是一种未来的技术,在商业环境中得到了广泛的应用。世界各地的公司都开始应用物联网技术,以确保最高效的业务。应用这项技术在改善物流过程方面的重要性尤为明显。本文描述了物联网在供应链管理等过程中的应用,即控制货物和材料的运输和存储。介绍了物联网技术提供的智能解决方案的示例。在物联网的实施中使用了各种技术和标准。科学界对NB-IoT、5G等新技术的研究越来越多,为物联网发展提供了更大的潜力。因此,本文展示了这些技术的比较,并解释了物联网设备如何与它们一起工作。
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引用次数: 2
Major Cloud Computing Security Challenges with Innovative Approaches 采用创新方法的主要云计算安全挑战
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20220826124655
Fudhah A. AlSelami
Cloud computing is the most favored contemporary era as it has the cap potential to decrease its costs related to computing which improves its pliability and extensibility for further computer processes. Among the past some years, cloud computing has been well superior as a hopeful idea for business organization to one of the additives of the IT organization it really is fastest growing. There are important troubles like protection which the IT agencies take into difficulty that misplaced with the heavy insertion of cloud computing Technology. Though records may be saved in any vicinity. The important reality is Storage of records is saved best with inside the vicinity of the clients that's been the numerous varieties of worries created. In cloud computing region the maximum argued hassle is especially Security. This study mainly intends to analyze and address the major cloud computing security challenges with innovative approaches. To meet that aim, a range of scientific methods, including descriptive, analytical, observation and comparison are taken into account. Given the results, the major key to a success cloud computing projects is reaching stability among the commercial enterprise blessings and the hidden capacity dangers that can affect efficacy.
云计算是当今最受欢迎的时代,因为它具有最大的潜力,可以降低与计算相关的成本,从而提高其对进一步计算机进程的柔韧性和可扩展性。在过去的几年中,云计算作为业务组织的一个有希望的想法,已经远远优于IT组织的一个补充,它确实是增长最快的。有一些重要的问题,比如IT机构认为的保护问题,随着云计算技术的大量引入而变得困难。虽然记录可以保存在附近的任何地方。重要的现实是,记录的存储最好保存在客户的附近,这已经产生了各种各样的问题。在云计算领域,争论最大的问题是安全问题。本研究主要旨在用创新的方法分析和解决主要的云计算安全挑战。为了实现这一目标,考虑到一系列科学方法,包括描述、分析、观察和比较。考虑到这些结果,云计算项目成功的关键是在商业企业的祝福和可能影响功效的潜在容量危险之间达到稳定。
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引用次数: 1
Structure Earthquake Analysis Program using Computer-Aided IT Sensor 使用计算机辅助IT传感器的结构地震分析程序
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20221219154908
Dong Oun Lee
The purpose of this study is to develop a complex test and analysis technique to improve the reliability of seismic performance evaluation of buildings, and to establish a seismic performance evaluation system using shear damper as an earthquake preparation technology. In this study, validated examples of viscoelasticity provided by OpenSees were selected for verification of hybrid experimental results data and compared with hybrid experimental techniques. By applying the analysis program and the developed Labplugin, the hybrid experimental system built through the connection between the equipment was verified. As a result, the behavior of the cyclic loading test showed the general behavior of the damper, but in the hybrid test, the behavior of the damper with respect to the ground acceleration and the decrease in stiffness caused by fracture were found. From the above comparison experiment, it can be seen that the hybrid technique developed in this study shows excellent seismic behavior compared to the cyclic loading experiment, dynamic experiment, and analytical technique. With the system built in this study, it is judged that it is possible to design a structure damper in the future. In addition hybrid experimental system will help to conduct more economical and reliable research on seismic control by applying partial experimental data to structures with nonlinear behavior in the future.
本研究的目的是发展一种复杂的测试和分析技术,以提高建筑物抗震性能评估的可靠性,并建立一种以剪切阻尼器作为地震准备技术的抗震性能评估体系。本研究选取OpenSees提供的经过验证的粘弹性算例,对混合实验结果数据进行验证,并与混合实验技术进行对比。利用分析程序和开发的Labplugin,对设备间连接搭建的混合实验系统进行了验证。结果表明,循环加载试验表现出阻尼器的一般特性,而混合加载试验则表现出阻尼器对地面加速度和断裂引起的刚度下降的特性。从上述对比试验可以看出,与循环加载试验、动力试验和分析技术相比,本研究开发的混合动力技术具有优良的抗震性能。通过本研究建立的系统,判断了将来设计结构阻尼器是可能的。此外,混合实验系统将部分实验数据应用于具有非线性行为的结构,有助于在未来进行更经济可靠的地震控制研究。
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引用次数: 0
Automation of Production Line in Order to Increase the Productivity 生产线自动化,提高生产效率
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20210211230401
Dejan Vapski, Z. Pandilov
The main goal of this research is to demonstrate a design solution of upgrading of a production line through automation of one section of the line. With this automation, the productivity was increased with lower costs per produced product. A machine for packaging was designed, which is used for final processing of the profile studs. This automation known as partial automation, where not all elements of the system are automated, is first step and it will obtain a possibility for further automation of the production line in order to reach a full automation process. Due to the very short time of return of investment, the crucial benefit of this automation is possibility of implementation in other plants of the company, which will multiply the benefit and provide more competitiveness on the market, due to the decrease of the production costs and improvement of the health and safety standards.
本研究的主要目标是展示一种通过生产线的一部分自动化来升级生产线的设计解决方案。有了这种自动化,生产效率提高了,每件产品的成本也降低了。设计了一种包装机,用于型材螺柱的最终加工。这种自动化被称为部分自动化,其中不是系统的所有元素都是自动化的,这是第一步,它将获得生产线进一步自动化的可能性,以达到完全自动化过程。由于投资回报时间很短,这种自动化的关键好处是有可能在公司的其他工厂实施,这将增加效益,并在市场上提供更多的竞争力,因为生产成本的降低和健康和安全标准的提高。
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引用次数: 0
A Study on The Wireless Remote Safety Measurement Device for Structures based on Multi-Waterproof Sensors 基于多防水传感器的结构物无线远程安全测量装置的研究
IF 1.2 Q4 Computer Science Pub Date : 2023-02-02 DOI: 10.31803/tg-20221219111046
Chang Jin Yang
Recently, as the need for constant safety management increases due to collapse accidents caused by external displacement of buildings, it is necessary to manufacture a construction ground gradient meter and serial open information technology (IT) sensor that can be monitored wirelessly based on epoxy resins, polyvinyl chloride (PVC) pipes, and communication cables. In particular, waterproof performance is required for ground monitoring of underground spaces with water, and for this purpose, research was also conducted to double mold the inside of the incline system. Construction IT convergence's building slope measurement device technology can respond to safety accidents by checking the amount of change in building displacement through a real-time online monitoring system. In addition, it is an industry with various application markets by converging IT technology into the existing construction industry and can be used as a pre-quake detection monitoring system for structural collapse accidents caused by external displacement. Therefore, it is intended to secure a sustainable facility safety management system through research in the field of real-time measurement technology on various facilities and surrounding ground behavior.
最近,由于建筑物的外部位移引起的倒塌事故,需要持续的安全管理,因此有必要以环氧树脂、聚氯乙烯(PVC)管道、通信电缆为基础,制造可以无线监测的施工地面梯度仪和串行开放信息技术(it)传感器。特别是对地下有水空间的地面监测,要求防水性能,为此,还进行了对倾斜系统内部进行双重模压的研究。建筑IT融合的建筑坡度测量装置技术,通过实时在线监测系统,检测建筑位移的变化量,对安全事故做出反应。此外,它是一个将it技术融合到现有建筑行业中,具有多种应用市场的行业,可以作为外部位移引起的结构倒塌事故的震前检测监测系统。因此,通过对各种设施及其周围地面行为的实时测量技术领域的研究,旨在保障可持续的设施安全管理体系。
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引用次数: 0
Conceptual Model of Managing Resilience in Supply Chain 供应链弹性管理的概念模型
IF 1.2 Q4 Computer Science Pub Date : 2023-02-01 DOI: 10.31803/tg-20220204110251
M. Kovacic, Maja Mutavđžija, K. Buntak
The supply chain is the basis for the functioning of today's society because it ensures the timely supply of all the resources needed to produce products or provide services offered in the market. Due to changes in the environments in which the supply chain exists, new risks arise that could jeopardize its functioning. Interruption in the normal functioning of the chain may result in the risk of inability to meet the requirements of stakeholders. Given this, the aim of this paper is to define a conceptual model of supply chain resilience management. The paper is based on the conducted secondary research and analysis of the achievements of other researchers in this field. The model described in this paper is based on the principles of the quality management system and provides a systematic approach to the analysis of supply chain threats, defining measures to reduce the threat, and testing and improving the established system.
供应链是当今社会运作的基础,因为它确保了生产产品或提供市场上提供的服务所需的所有资源的及时供应。由于供应链所处环境的变化,可能会出现危及其运作的新风险。链条正常运作的中断可能导致无法满足利益相关者要求的风险。鉴于此,本文的目的是定义供应链弹性管理的概念模型。本文是在对该领域其他研究者的研究成果进行二次研究和分析的基础上进行的。本文所描述的模型以质量管理体系的原理为基础,提供了一种系统的方法来分析供应链威胁,确定减少威胁的措施,并测试和改进已建立的系统。
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引用次数: 0
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TEHNICKI GLASNIK-TECHNICAL JOURNAL
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