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A Machine Learning Approach for Automated Cost Estimation of Plastic Injection Molding Parts 一种基于机器学习的注塑件成本自动估算方法
Pub Date : 2023-04-13 DOI: 10.37256/ccds.4220232277
Florian Klocker, Reinhard Bernsteiner, Christian Ploder, Martin Nocker
Market competition leads to shorter cycle times for new or updated products. Therefore, flexibility in reacting to market changes, product development, and all related processes must be accelerated. In this regard, accurate cost estimation in the early stages of product development is critical for assessing the economic viability of a product. However, cost estimation requires data and expertise from several departments. Machine learning approaches could improve the accuracy and reduce the time needed for cost estimation. To investigate the eligibility of machine learning based cost estimation, a case study was conducted on an industrial company that produces plastic molding parts as key components of its products. The study involved training various supervised machine learning algorithms on a dataset of plastic injection molding parts using three different cost calculation methods. The three methods differed in the extent to which they considered the different process steps involved in the production of the parts. Different tree-based machine learning regression models and neural network models were trained to identify the most suitable approach for cost estimation in the given context. The results showed that tree-based machine learning algorithms outperformed neural networks and that individually predicting manufacturing parameters for cost calculation of each manufacturing process step leads to the most accurate cost estimation. This paper demonstrates how machine learning can support cost estimation in the early stages of the product lifecycle, reducing development times and improving cost estimation accuracy.
市场竞争导致新产品或更新产品的周期缩短。因此,必须加快对市场变化、产品开发和所有相关过程作出反应的灵活性。在这方面,在产品开发的早期阶段进行准确的成本估计对于评估产品的经济可行性至关重要。然而,成本估算需要来自多个部门的数据和专业知识。机器学习方法可以提高准确性,减少成本估算所需的时间。为了研究基于机器学习的成本估算的适用性,对一家生产塑料成型零件作为其产品关键部件的工业公司进行了案例研究。该研究涉及使用三种不同的成本计算方法在塑料注射成型零件数据集上训练各种监督机器学习算法。这三种方法的不同之处在于它们考虑了零件生产中涉及的不同工艺步骤。训练不同的基于树的机器学习回归模型和神经网络模型,以确定给定环境中最适合的成本估算方法。结果表明,基于树的机器学习算法优于神经网络,并且在每个制造过程步骤的成本计算中单独预测制造参数可以获得最准确的成本估算。本文演示了机器学习如何在产品生命周期的早期阶段支持成本估算,减少开发时间并提高成本估算的准确性。
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引用次数: 0
Prediction of Barrier Option Price Based on Antithetic Monte Carlo and Machine Learning Methods 基于反拟蒙特卡罗和机器学习方法的障碍期权价格预测
Pub Date : 2023-01-14 DOI: 10.37256/ccds.4120232110
Y. Li, Keyue Yan
Option pricing has become a popular topic in the fields of finance and mathematics with the rapid development of stock and option markets. Now, more and more academics, financial companies and investors are attracted to study and do research about it. The theory of option pricing can also be used to price financial instruments with the similar structure to options and contribute to risk control and management. The Black-Scholes model is the basic and famous method applied for different options pricing with modifications and adjustments, and the results can be solved by some traditional numerical methods such as the binomial model, finite difference method, Monte Carlo method and so on. Machine learning has risen recently and begins to replace some complex work in traditional methods with the evolution of computers and computing power. How to use machine learning methods to predict the option price is a problem worthy to be solved. In this research, using the antithetic Monte Carlo method generates the prices of the up-and-out barrier options without rebate based on the Black-Scholes model. The generated dataset is divided into a training set and a test set for support vector regression, random forest, adaptive boosting and artificial neural networks. We compare the fitting and performance of all machine learning methods and find that random forest and artificial neural network methods fit better than others with fewer errors in predictions.
随着股票和期权市场的迅速发展,期权定价已成为金融和数学领域的热门话题。目前,越来越多的学者、金融公司和投资者对其进行了研究。期权定价理论也可以用来为与期权结构相似的金融工具定价,有助于风险控制和管理。Black-Scholes模型是对不同期权进行修正和调整的最基本、最著名的定价方法,其结果可以用二项式模型、有限差分法、蒙特卡罗法等传统数值方法求解。机器学习最近兴起,随着计算机和计算能力的发展,机器学习开始取代传统方法中的一些复杂工作。如何利用机器学习方法预测期权价格是一个值得解决的问题。本研究基于Black-Scholes模型,采用反蒙特卡罗方法生成无返利进退障碍期权的价格。生成的数据集分为训练集和测试集,分别用于支持向量回归、随机森林、自适应增强和人工神经网络。我们比较了所有机器学习方法的拟合和性能,发现随机森林和人工神经网络方法比其他方法更适合,预测误差更小。
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引用次数: 2
GIS Analysis of Organo-Contaminants and Iron Linked to Groundwater and Sediment at Boreholes in Aluu, Delta Region, Nigeria 尼日利亚三角洲地区Aluu钻孔地下水和沉积物中有机污染物和铁的GIS分析
Pub Date : 2022-12-22 DOI: 10.37256/ccds.4320232095
Davidson Egirani, Ginikanwa Chidi
The source of high fever and gastrointestinal disorders in humans after groundwater consumption in this part of the delta region in Nigeria is unknown. Spatial data engineered by GIS interpretation of organo-contaminants bound to groundwater and borehole sediment provides baseline data and information on the impact of iron and organo-contaminants on groundwater quality in Aluu. A total of 10 water and sediment samples were collected at a depth of 45 m from 10 boreholes within Aluu and analyzed in triplicate. The choice of 45 m implies the occurrence of sediments bearing groundwater for a deep well. A particle size analyzer was used to perform particle size analyses of the air-dried sediments. The American Public Health Association Method (APHA) was used to perform the chemical analysis of the water samples. Here, a liquid-liquid extraction procedure was conducted on the samples using 30 mL dichloromethane (DCM) as the extraction agent. The results were subjected to statistical validation, spatial data and GIS analysis. The textural characteristics possessed a mean grain size from fine sand (2.03) to medium sand (4.3), poorly sorted of 1.45 to 2.1, skewness of near-symmetrical (0.02), meso-kurtic kurtosis of 0.5 to very platy-kurtic of 2.09. Total petroleum hydrocarbon was 0.033 mg/L to 0.88 mg/L, and total hydrocarbon content and iron were 1.65 mg/L to 3.41 mg/L, and 2.98 mg/L-0.48 mg/L respectively. The results of these contaminants bound to sediments and water were above the acceptable limits of the World Health Organization. The ingress of contaminants into the groundwater was significantly controlled by the characteristics of the borehole sediment.
在尼日利亚的这一三角洲地区,人们在饮用地下水后出现高烧和胃肠道疾病的原因尚不清楚。通过GIS对地下水和钻孔沉积物中有机污染物的解释而获得的空间数据提供了铁和有机污染物对阿鲁乌地下水质量影响的基线数据和信息。从Aluu的10个钻孔中采集了45 m深度的10个水和沉积物样本,并分三份进行了分析。选择45米意味着深井中存在含地下水的沉积物。采用粒度分析仪对风干沉积物进行粒度分析。采用美国公共卫生协会方法(APHA)对水样进行化学分析。本研究采用液-液萃取法,以30 mL二氯甲烷(DCM)为萃取剂对样品进行萃取。结果进行了统计验证、空间数据和GIS分析。平均粒度为细砂(2.03)~中砂(4.3),分选差(1.45 ~ 2.1),偏度为近对称(0.02),中峰度为0.5 ~极平峰度为2.09。总烃含量为0.033 ~ 0.88 mg/L,总烃和铁含量分别为1.65 ~ 3.41 mg/L和2.98 mg/L ~ 0.48 mg/L。这些与沉积物和水中结合的污染物的结果超过了世界卫生组织的可接受限度。钻孔沉积物的特征对污染物进入地下水有明显的控制作用。
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引用次数: 1
Usability of University Websites as Information Sources: A Review and Synthesis Based on 2021 Publications Indexed in Scopus Database 大学网站作为信息源的可用性:基于Scopus数据库索引的2021篇论文综述与综合
Pub Date : 2022-12-12 DOI: 10.37256/ccds.4120232019
C. Yap, Hisyamuddin Hashim, Muhammad Hakim Ainuddin, Mohd Amiruddin Abd Rahman, Khairul Adib Yusof, Norizah Abdul Rahman, Naszroul Haqimee Rahmat, Amir Hamzah Abd. Ghafar, Norlida Md Noor, Siti Hajar Alias, Norzaina Darus, Jivananthan Arumugam, Noor Nashrin Arlina Anas, Bimo Ario Tejo, Wan Mohd Syazwan, Zanariah Abdul Majid, Halimah Mohamed Kamari, Khamirul Amin Matori, Muskhazli Mustafa, Nor Azwady Abd Aziz, Mohd Basyaruddin Abdul Rahman, Khalid Awadh Al-Mutairi, Krishnan Kumar, Geetha Subramaniam, Wan Hee Cheng
Universities' identities and institutional images are showcased on their websites to the rest of the world. Nowadays, many university websites (UW)s have been well-investigated for usability improvement for all users in general. This study aims to review the publications indexed in the Scopus database in 2021 using the search term 'University Websites' and to synthesize the main information being discussed in the manuscripts. Two main reasons why only papers published in 2021 were selected for this study. Firstly, in terms of the number of publications (N = 456) indexed in Scopus from 1996 to 2021, the 2021 publications are the most recent complete year. Secondly, 2021 topped the list of publications along with 2020. For the year 2021, a total of 58 publications were found in the Scopus database as of February 26, 2022. After screening all the papers, only 39 papers were used for this quantitative analysis. The present systematic review presented three major trends. Firstly, the publications on the UWs are expected to be higher in near future aligned with the speed of Industry 4.0 development worldwide. Secondly, there is a total of 24 countries and 1 region (Latin America) found in this review, with Indonesia leading the list with 8 publications. Thirdly, all the papers aimed to identify the obstacles and recommended ways and room for future improvements for all users regarding their UWs. This review paper highlighted the importance of having effective and up-to-date websites from social and economic viewpoints. It can be synthesized here that continual improvements in the knowledge of the effective usability of a UW can sustain a university's reputation and ranking ultimately.
大学的身份和机构形象在他们的网站上向世界其他地方展示。如今,许多大学网站(UW)已经对所有用户的可用性改进进行了充分的调查。本研究旨在使用搜索词“大学网站”来回顾2021年Scopus数据库中索引的出版物,并综合手稿中讨论的主要信息。本研究只选择了2021年发表的论文,主要有两个原因。首先,从1996年到2021年Scopus收录的出版物数量(N = 456)来看,2021年的出版物是最近的完整年份。其次,2021年和2020年一起位居出版物榜首。截至2022年2月26日,Scopus数据库共收录了58篇论文。经过对所有论文的筛选,本次定量分析只使用了39篇论文。本系统综述提出了三个主要趋势。首先,随着全球工业4.0的发展速度,在不久的将来,关于UWs的出版物预计会增加。其次,本次审查共发现24个国家和1个地区(拉丁美洲),其中印度尼西亚以8篇出版物领先。第三,所有的论文旨在确定障碍和建议的方法和未来的改进空间,为所有用户关于他们的UWs。这篇综述文章强调了从社会和经济的角度来看,拥有有效和最新的网站的重要性。从这里可以综合看出,不断提高华盛顿大学的有效可用性知识,最终可以维持一所大学的声誉和排名。
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引用次数: 3
The Role of Different Types of Management Information System Applications in Business Development: Concepts, and Limitations 不同类型的管理信息系统应用在商业发展中的作用:概念和限制
Pub Date : 2022-11-15 DOI: 10.37256/ccds.4120231959
Hamed Taherdoost
Businesses are highly dependent on data to make critical decisions, manage operations, and simplify processes. Information systems equip businesses to gain benefits from data and provide easy and timely access to data through storing and processing input data from numerous resources. The majority of managers can deal with large amounts of data without letting it interfere with their ability to plan, organize, and control the organization. The disconnect between static information systems and evolving organizational structures is another primary factor contributing to information vulnerability. Organizational restructuring often necessitated revisions to preexisting information fixed systems to account for changing roles, responsibilities, levels of authority, and data requirements. An effective information system enables decision-makers in businesses to monitor trends, plan, predict measures prior to their competitors. The role of information systems to improve business performance has been investigated in studies considering the importance of relevant, accurate, and timely data. However, to increase the effectiveness of information systems, a comprehensive understanding of its applications and use cases of each type of information systems based on different organizational levels is required. This paper aims to provide concepts of information systems, present different applications of information systems, and discuss the main types of information systems based on their level of application. Specific types, roles, advantages, and limitations of information systems are also highlighted focusing on their impact on business developments. Besides, the impacts of different types of information systems on organizations and processes are provided.
企业高度依赖数据来做出关键决策、管理运营和简化流程。信息系统使企业能够从数据中获益,并通过存储和处理来自众多资源的输入数据,提供方便和及时的数据访问。大多数管理人员可以处理大量数据,而不会让数据影响他们计划、组织和控制组织的能力。静态信息系统和不断发展的组织结构之间的脱节是造成信息脆弱性的另一个主要因素。组织结构调整通常需要对先前存在的固定信息系统进行修订,以解释角色、职责、权限级别和数据需求的变化。一个有效的信息系统使企业决策者能够在竞争对手之前监测趋势、计划和预测措施。在考虑相关、准确和及时数据的重要性的研究中,已经调查了信息系统在提高业务绩效方面的作用。然而,为了提高信息系统的有效性,需要对基于不同组织级别的每种类型的信息系统的应用程序和用例有一个全面的了解。本文旨在提供信息系统的概念,介绍信息系统的不同应用,并根据其应用级别讨论信息系统的主要类型。信息系统的具体类型、角色、优势和局限性也被强调,重点是它们对业务发展的影响。此外,还提供了不同类型的信息系统对组织和过程的影响。
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引用次数: 0
Uniform Resource Locator Classification Using Classical Machine Learning & Deep Learning Techniques 使用经典机器学习和深度学习技术的统一资源定位器分类
Pub Date : 2022-10-31 DOI: 10.37256/ccds.4120231847
Aws Rayyan, Mohammad Ghassan Aburas, Amjed Al-mousa
In the Internet era, there is no doubt that the Internet has helped us in many ways by providing us with a means to communicate with anyone around the world. That is said, some people misuse such technology to conduct malicious behaviors. Many things could be exploited to perform such acts, but this work focuses on exploitation methods that use the uniform resource locator (URL). This paper presents the means to extract features from a raw URL. These are used to predict whether a URL is safe for a user to visit or not. The whole process of extracting the data and preparing it for a model is discussed thoroughly in this paper. Several machine learning (ML) models have been trained using different algorithms, including Catboost, RandomForest, and Decision trees, in addition to using and exploring several feedforward deep neural networks learning models. The best model achieved an accuracy of 95.61% on a test set using a deep learning model.
在互联网时代,毫无疑问,互联网在很多方面帮助了我们,为我们提供了一种与世界各地的任何人交流的手段。也就是说,有些人滥用这种技术进行恶意行为。可以利用许多东西来执行此类行为,但本文主要关注使用统一资源定位符(URL)的利用方法。本文介绍了从原始URL中提取特征的方法。它们用于预测URL对用户访问是否安全。本文对数据提取和模型准备的整个过程进行了深入的讨论。除了使用和探索几种前馈深度神经网络学习模型外,还使用不同的算法训练了几种机器学习(ML)模型,包括Catboost、RandomForest和Decision trees。最好的模型在使用深度学习模型的测试集上实现了95.61%的准确率。
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引用次数: 2
A Review on GNSS-Threat Detection and Mitigation Techniques gnss威胁检测与缓解技术综述
Pub Date : 2022-10-12 DOI: 10.37256/ccds.4320231678
O. Sharifi-Tehrani, M. Ghasemi
Global navigation satellite systems (GNSS) have played an important role in commercial, military and industrial navigation as well as cloud computing, geospatial analysis and digital modeling. Nowadays, with the advancement of science and technology, the capabilities of electronic warfare, including signal jamming, interference, and spoofing, have also advanced. Attacks and threats at simple, intermediate and advanced levels, endanger the security and reliability of GNSS in the commercial, industrial and military fields such as geolocation, geospatial techniques and digital twins. Therefore, coping with this problem and challenge is very important in maintaining security and reliability. At present, various methods and algorithms have been designed and utilized based on statistical properties, moving receiver, artificial array, wavelet transform and etc., each of which has advantages, disadvantages and blind spots. In this paper, the necessity and requirements for dealing with GNSS threats are emphasized, and the most important researches in the field of GNSS threat (jamming/interference/spoofing) detection and mitigation are studied and reviewed. Their advantages and disadvantages are discussed, and improving areas are also proposed.
全球卫星导航系统(GNSS)在商业、军事和工业导航以及云计算、地理空间分析和数字建模方面发挥了重要作用。如今,随着科学技术的进步,电子战的能力也在不断提高,包括信号干扰、干扰和欺骗。简单、中级和高级层面的攻击和威胁,危及地理定位、地理空间技术、数字孪生等商业、工业和军事领域GNSS的安全性和可靠性。因此,应对这一问题和挑战对于维护安全可靠性至关重要。目前,基于统计特性、移动接收机、人工阵列、小波变换等设计和应用了各种方法和算法,每种方法都有各自的优缺点和盲点。本文强调了处理GNSS威胁的必要性和要求,并对GNSS威胁(干扰/干扰/欺骗)检测与缓解领域的重要研究进行了研究和综述。讨论了它们的优缺点,并提出了改进的地方。
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引用次数: 0
An Overview of Trends in Information Systems: Emerging Technologies that Transform the Information Technology Industry 信息系统趋势概述:改变信息技术产业的新兴技术
Pub Date : 2022-08-24 DOI: 10.37256/ccds.4120231653
Hamed Taherdoost
Technology is mainly characterized by being changed rapidly. In other words, it is recognized as the ever-changing playing field. Those who aim to stay in the technology field need to quickly get adapted to such constant changes in this field. Due to the high pace of information technology advances, it is required to identify and implement appropriate technologies by which the organizations can effectively stay and compete in the business through the accurate and real-time efficiency delivered by such technologies as cloud computing, internet of things (IoT), artificial intelligence, blockchain, big data analytics, virtual and augmented reality, 5g network, and, etc. These trends are critically important because turning and adapting to the latest trends in information technology and systems are largely contributing to meeting the consumers' technology-enabled demands. In this paper, the most widely used trends in information systems and technology will be discussed.
技术的主要特点是变化迅速。换句话说,它被认为是一个不断变化的竞争环境。那些打算留在技术领域的人需要迅速适应这个领域的不断变化。由于信息技术的高速发展,需要识别和实施适当的技术,通过云计算、物联网(IoT)、人工智能、区块链、大数据分析、虚拟和增强现实、5g网络等技术提供的准确和实时的效率,组织可以有效地在业务中保持和竞争。这些趋势至关重要,因为转向和适应信息技术和系统的最新趋势在很大程度上有助于满足消费者的技术需求。在本文中,将讨论信息系统和技术中最广泛使用的趋势。
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引用次数: 9
A Study of Using Machine Learning in Predicting COVID-19 Cases 机器学习在COVID-19病例预测中的应用研究
Pub Date : 2022-07-14 DOI: 10.37256/ccds.3220221488
Maleerat Maliyaem, Nguyen Minh Tuan, Demontray Lockhart, S. Muenthong
With an unprecedented challenge to combat COVID-19, the prediction of confirmed cases is very important to ensure medical aid and healthy living conditions. In order to predict confirmed cases, the current study uses a dataset prepared by the White House Office of Science and Technology Policy which brought together companies and research to address questions concerning COVID-19. The importance of this was to identify factors that seem to affect the transmission rate of COVID-19. The focus of the current research, however, is to predict global cases of COVID-19. There have been many papers written about the prediction of confirmed cases and fatalities, but they failed to show promising results. Our research applies machine learning for predicting fatalities in the world using the COVID-19 Forecasting dataset from Kaggle. After trying several algorithms, our findings reveal that Logistic Regression, Decision Tree, KNeighbors, GaussianNB, and Random Forest algorithms provide the best predictions. Thus, the results show Random Forest as having the highest accuracy followed by Logistic Regression and Decision Tree. The results are promising opening up the door for further research.
面对前所未有的抗疫挑战,确诊病例预测对于确保医疗救助和健康生活条件至关重要。为了预测确诊病例,目前的研究使用了白宫科技政策办公室准备的数据集,该数据集汇集了公司和研究人员,以解决与COVID-19有关的问题。这样做的重要性在于确定似乎影响COVID-19传播率的因素。然而,目前的研究重点是预测全球新冠肺炎病例。关于预测确诊病例和死亡人数的论文有很多,但它们都没有显示出令人鼓舞的结果。我们的研究利用Kaggle的COVID-19预测数据集,应用机器学习来预测世界上的死亡人数。在尝试了几种算法之后,我们的研究结果表明,逻辑回归、决策树、KNeighbors、GaussianNB和随机森林算法提供了最好的预测。因此,结果显示随机森林具有最高的准确性,其次是逻辑回归和决策树。这些结果很有希望,为进一步的研究打开了大门。
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引用次数: 3
An Improved Fast and Secure CAMEL Based Authenticated Key in Smart Health Care System 一种改进的基于CAMEL的智能医疗系统中快速安全的认证密钥
Pub Date : 2022-07-11 DOI: 10.37256/ccds.3220221423
Syed Khasim, Shaik Shakeer Basha
Seeing as Smart Healthcare Systems provide cloud services for storing patient health records, data security and privacy are critical to the company's success, and patients do not want their identities to be revealed. The authentication procedure requires disclosing users' personal data, such as a username and password, on the authentication server in order to protect their identities. The patient's privacy may be invaded if the patient can be observed or linked to by the patient's unfortunate foes. As a result, we propose in this paper a system that gives patients anonymity, protection, and privacy of sensitive healthcare data from the Authorization Service and enemies. A camel-based rotating panel signature program was used in our proposed work to provide anonymity to health records while also adding extra security to the network layer. The effectiveness of the programs was assessed using theoretical analysis, which revealed that the program has a range of security characteristics and is resistant to multiple attacks.
鉴于智能医疗保健系统提供云服务来存储患者健康记录,数据安全和隐私对公司的成功至关重要,而且患者不希望他们的身份被泄露。认证过程需要在认证服务器上公开用户的个人数据,如用户名和密码,以保护用户的身份。如果患者的不幸敌人可以观察到患者或与患者有联系,则患者的隐私可能会受到侵犯。因此,我们在本文中提出了一个系统,该系统可以为患者提供匿名性,保护敏感医疗保健数据免受授权服务和敌人的侵害。在我们提出的工作中,使用了基于骆驼的旋转面板签名程序,以提供健康记录的匿名性,同时还为网络层增加了额外的安全性。利用理论分析对程序的有效性进行了评估,结果表明该程序具有一系列安全特性,并且能够抵抗多种攻击。
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引用次数: 6
期刊
Cloud Computing and Data Science
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