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Security as a Solution: An Intrusion Detection System Using a Neural Network for IoT Enabled Healthcare Ecosystem 安全即解决方案:基于神经网络的入侵检测系统,支持物联网医疗生态系统
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4838
Anshul Jain, Tanya Singh, Satyendra Kumar Sharma
Aim/Purpose The primary purpose of this study is to provide a cost-effective and artificial intelligence enabled security solution for IoT enabled healthcare ecosystem. It helps to implement, improve, and add new attributes to healthcare services. The paper aims to develop a method based on an artificial neural network technique to predict suspicious devices based on bandwidth usage. Background COVID has made it mandatory to make medical services available online to every remote place. However, services in the healthcare ecosystem require fast, uninterrupted facilities while securing the data flowing through them. The solution in this paper addresses both the security and uninterrupted services issue. This paper proposes a neural network based solution to detect and disable suspicious devices without interrupting critical and life-saving services. Methodology This paper is an advancement on our previous research, where we performed manual knowledge-based intrusion detection. In this research, all the experiments were executed in the healthcare domain. The mobility pattern of the devices was divided into six parts, and each one is assigned a dedicated slice. The security module regularly monitored all the clients connected to slices, and machine learning was used to detect and disable the problematic or suspicious devices. We have used MATLAB’s neural network to train the dataset and automatically detect and disable suspicious devices. The different network architectures and different training algorithms (Levenberg–Marquardt and Bayesian Framework) in MATLAB software have attempted to achieve more precise values with different properties. Five iterations of training were executed and compared to get the best result of R=99971. We configured the application to handle the four most applicable use cases. We also performed an experimental application simulation for the assessment and validation of predictions. Contribution This paper provides a security solution for the IoT enabled healthcare system. The architectures discussed suggest an end-to-end solution on the sliced network. Efficient use of artificial neural networks detects and block suspicious devices. Moreover, the solution can be modified, configured and deployed in many other ecosystems like home automation. Findings This simulation is a subset of the more extensive simulation previously performed on the sliced network to enhance its security. This paper trained the data using a neural network to make the application intelligent and robust. This enhancement helps detect suspicious devices and isolate them before any harm is caused on the network. The solution works both for an intrusion detection and prevention system by detecting and blocking them from using network resources. The result concludes that using multiple hidden layers and a non-linear transfer function, logsig improved the learning and results. Recommendations Everything from offices, schools, colleges, and e-consultation is
本研究的主要目的是为物联网医疗生态系统提供具有成本效益的人工智能安全解决方案。它有助于实现、改进和向医疗保健服务添加新属性。本文旨在开发一种基于人工神经网络技术的基于带宽使用的可疑设备预测方法。新冠疫情要求每个偏远地区都必须在线提供医疗服务。然而,医疗保健生态系统中的服务需要快速、不间断的设施,同时保护流经它们的数据。本文中的解决方案同时解决了安全性和不间断服务问题。本文提出了一种基于神经网络的解决方案,在不中断关键和救生服务的情况下检测和禁用可疑设备。本文是在前人研究的基础上进行的基于知识的人工入侵检测。在本研究中,所有实验都在医疗保健领域执行。将设备的移动模式划分为六个部分,每个部分分配一个专用切片。安全模块定期监控连接到切片的所有客户端,并使用机器学习来检测和禁用有问题或可疑的设备。我们使用MATLAB的神经网络对数据集进行训练,并自动检测和禁用可疑设备。MATLAB软件中不同的网络架构和不同的训练算法(Levenberg-Marquardt和Bayesian Framework)都试图获得具有不同性质的更精确的值。执行5次迭代训练并进行比较,得到R=99971的最佳结果。我们配置应用程序来处理四个最适用的用例。我们还进行了实验应用模拟,以评估和验证预测。本文为支持物联网的医疗保健系统提供了一个安全解决方案。所讨论的体系结构建议在切片网络上提供端到端解决方案。有效利用人工神经网络检测并阻断可疑设备。此外,该解决方案可以在许多其他生态系统(如家庭自动化)中进行修改、配置和部署。该模拟是先前在切片网络上进行的更广泛的模拟的一个子集,以增强其安全性。本文采用神经网络对数据进行训练,使应用具有智能化和鲁棒性。这种增强有助于检测可疑设备,并在对网络造成任何损害之前将其隔离。该解决方案既适用于入侵检测系统,也适用于入侵防御系统,通过检测和阻止他们使用网络资源。结果表明,使用多个隐藏层和非线性传递函数,对数符号改善了学习和结果。目前,来自办公室、学校、学院和电子咨询的一切都是为远程从业者提供的。它给网络造成了巨大的压力,流经它的数据增加了数倍。因此,为物联网医疗保健服务提供具有成本效益和可持续的安全解决方案成为我们的共同责任。与商业市场上昂贵的安全选项相比,从业者可以有效地使用这种负担得起的解决方案,并将其部署在切片网络上。该解决方案可由非政府组织和联邦政府实施,为偏远地区的患者提供安全且负担得起的医疗保健监测服务。通过将人工智能集成到所有模块中,Research可以将这个解决方案提升到一个新的水平。他们可以通过使其与联邦政府的数据隐私法兼容来增强该解决方案。可以集成身份验证和加密模块来进一步增强它。自去年以来,COVID给医疗保健行业带来了巨大的影响。随着一切都在网上,数据安全和隐私是下一个最重要的问题。这项研究可以为那些从事卫生保健服务安全工作的人提供很大的支持。本文提供了“安全即解决方案”,它可以增强原本不太安全的生态系统的安全性。本文讨论的医疗保健用例解决了支持物联网的医疗保健生态系统中最常见的安全问题。未来研究我们可以通过包括数据隐私模块,如身份验证和授权,数据加密和帮助遵守联邦隐私法来增强该应用程序。此外,机器学习和人工智能可以扩展到该应用程序的其他模块。此外,这个实验可以很容易地应用于许多其他领域,如电子家庭、电子办公室和许多其他领域。 例如,电子家庭可以有厨房设备、房间、餐厅、汽车、自行车和智能手表等设备。因此,可以使用此应用程序监视这些设备并检测任何可疑活动。©2021 inform Science Institute。版权所有。
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引用次数: 6
Challenges in Contact Tracing by Mining Mobile Phone Location Data for COVID-19: Implications for Public Governance in South Africa 通过挖掘COVID-19手机位置数据追踪接触者的挑战:对南非公共治理的影响
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4736
Paul Kariuki, Lizzy O Ofusori, Prabhakar Rontala Subramanniam, M. Okpeku, Maria L Goyayi
Aim/Purpose The paper's objective is to examine the challenges of using the mobile phone to mine location data for effective contact tracing of symptomatic, pre-sympto-matic, and asymptomatic individuals and the implications of this technology for public health governance Background The COVID-19 crisis has created an unprecedented need for contact tracing across South Africa, requiring thousands of people to be traced and their details captured in government health databases as part of public health efforts aimed at breaking the chains of transmission Contact tracing for COVID-19 requires the identification of persons who may have been exposed to the virus and fol-lowing them up daily for 14 days from the last point of exposure Mining mo-bile phone location data can play a critical role in locating people from the time they were identified as contacts to the time they access medical assistance In this case, it aids data flow to various databases designated for COVID-19 work Methodology The researchers conducted a review of the available literature on this subject drawing from academic articles published in peer-reviewed journals, research re-ports, and other relevant national and international government documents re-porting on public health and COVID-19 Document analysis was used as the primary research method, drawing on the case studies Contribution Contact tracing remains a critical strategy in curbing the deadly COVID-19 pan-demic in South Africa and elsewhere in the world However, given increasing concern regarding its invasive nature and possible infringement of individual liberties, it is imperative to interrogate the challenges related to its implementa-tion to ensure a balance with public governance The research findings can thus be used to inform policies and practices associated with contact tracing in South Africa Findings The study found that contact tracing using mobile phone location data mining can be used to enforce quarantine measures such as lockdowns aimed at miti-gating a public health emergency such as COVID-19 However, the use of tech-nology can expose the public to criminal activities by exposing their locations From a public governance point of view, any exposure of the public to social ills is highly undesirable Recommendations for Practitioners In using contact tracing apps to provide pertinent data location caution needs to be exercised to ensure that sensitive private information is not made public to the extent that it compromises citizens' safety and security The study recom-mends the development and implementation of data use protocols to support the use of this technology, in order to mitigate against infringement of individ-ual privacy and other civil liberties Recommendations for Researchers Researchers should explore ways of improving digital applications in order to improve the acceptability of the use of contact tracing technology to manage pandemics such as COVID-19, paying attention to ethical consideratio
目的/目的本文的目的是研究使用手机挖掘位置数据以有效追踪有症状、有症状前和无症状个体的接触者所面临的挑战,以及这项技术对公共卫生治理的影响。背景:COVID-19危机在南非各地对追踪接触者产生了前所未有的需求。需要成千上万的人被追踪和他们在政府卫生细节捕捉数据库作为公共卫生措施的一部分,旨在打破传播链接触者追踪COVID-19需要识别的人可能已经暴露在病毒和破纪录他们每天14天的最后一点曝光矿业mo-bile手机位置数据可以扮演关键角色定位的人从他们接触的时间研究人员查阅了关于这一主题的现有文献,其中包括发表在同行评审期刊上的学术文章、研究报告以及报道公共卫生和COVID-19的其他相关国家和国际政府文件。研究方法采用文件分析作为主要研究方法。接触者追踪仍然是遏制南非和世界其他地方致命的COVID-19大流行的一项关键战略,然而,鉴于人们对其侵入性和可能侵犯个人自由的担忧日益增加,因此,研究结果可用于为南非与接触者追踪相关的政策和做法提供信息。研究结果发现,使用移动电话位置数据挖掘进行接触者追踪可用于执行隔离措施,例如旨在缓解COVID-19等突发公共卫生事件的封锁措施。从公共治理的角度来看,科技的使用可以暴露公众的位置,从而使他们暴露于犯罪活动中,对从业人员的建议在使用接触追踪应用程序提供相关数据时,需要谨慎对待,以确保敏感的私人信息不会公开到危及公民安全和保障的程度。研究建议制定和实施数据使用协议,以支持该技术的使用。研究人员建议研究人员应探索改进数字应用程序的方法,以提高使用接触者追踪技术来管理COVID-19等大流行病的可接受性。关注伦理因素对社会的影响由于接触者追踪涉及隐私和保密性,因此必须谨慎进行这项研究强调了当局必须解决的挑战,以确保隐私权和保密性得到维护未来的研究未来的研究可以集中于收集原始数据,通过挖掘手机位置数据来提供接触者追踪的见解研究也可以进行基于应用程序的技术可以提高接触者追踪的有效性,以优化测试和追踪覆盖范围,这有可能最大限度地减少传播,同时最大限度地减少追踪延迟。此外,开发具有普遍互操作性和隐私保护的接触者追踪应用程序非常重要©2021 inform Science Institute版权所有
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引用次数: 4
Transition to a Competitive Consultant Selection Method: A Case Study of a Public Agency in Israel 向竞争性顾问选择方法的过渡:以色列一家公共机构的案例研究
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4891
A. Mitelman, Yahel Giat
Aim/Purpose: This paper reports a case study of organizational transition from a non-competitive selection method to a novel bidding method for the selection of consultants in the Architectural and Engineering (A/E) industry. Background: Public procurement agencies are increasingly relying on external consultants for the design of construction projects. Consultant selection can be based on either competitive bidding, or quality-based criteria, or some combination between these two approaches. Methodology: Different sources of information were reviewed: internal documents, and quantitative data from the enterprise software platform (ERP). In addition, informal and unstructured interviews were conducted with relevant officials. Contribution: As there are mixed opinions in the scientific literature regarding the use of competitive bidding for the selection of consultants in the A/E industry, this paper contributes a detailed review of a transition to a competitive selection method and provides a financial and qualitative comparison between the two methods. In addition, the method implemented is novel, as it delegates most of the responsibility of hiring and managing consultants to one main contractor. Findings: While the new selection method was intended to reduce bureaucratic overload, it has unexpectedly also succeeded to reduce costs as well. Recommendations for Practitioners: It may be more efficient and profitable to adopt the selection method described in this study. Recommendation for Researchers: Similar methods can be applied to other industries successfully. Impact on Society: Our method was applied in a public organization and resulted in a better outcome, both financial and managerial. Adopting this approach can benefit public budgets. Future Research: The selection, data storage, and analysis methods are interrelated components. Future analysis of these components can help better shape the consultant selection process.
目的/目的:本文报告了建筑工程(a /E)行业顾问选择从非竞争性选择方法到新型招标方法的组织转变的案例研究。背景:公共采购机构越来越依赖外部顾问进行建设项目的设计。顾问的选择可以基于竞争性招标,或基于质量的标准,或这两种方法的某种结合。方法:不同来源的信息进行审查:内部文件,定量数据来自企业软件平台(ERP)。此外,还对有关官员进行了非正式和非结构化的采访。贡献:由于科学文献中关于在A/E行业中使用竞争性招标选择顾问的意见不一,本文对向竞争性选择方法的过渡进行了详细的回顾,并提供了两种方法之间的财务和定性比较。此外,所执行的方法是新颖的,因为它将雇用和管理顾问的大部分责任委托给一个主要承包商。研究发现:虽然新的选拔方法旨在减少官僚主义的负担,但它也意外地成功地降低了成本。对从业者的建议:采用本研究中描述的选择方法可能更有效和有益。给研究人员的建议:类似的方法可以成功地应用于其他行业。对社会的影响:我们的方法在一个公共组织中得到了应用,在财务和管理上都取得了更好的结果。采用这种方法可以使公共预算受益。未来研究:选择、数据存储和分析方法是相互关联的组成部分。未来对这些组成部分的分析可以帮助更好地塑造顾问选择过程。
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引用次数: 1
Students’ Continuance Intention to Use Moodle: An Expectation-Confirmation Model Approach 学生持续使用Moodle的意向:一种期望-确认模型方法
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4842
Ahmad A. Rabaa'i, Shareef Abu ALmaati, Xiaodi Zhu
Aim/Purpose: This study aims at investigating the factors that influence students’ continuous intention to use Moodle, as an exemplar of learning management systems (LMSs), in the post-adoption phase. Background: Higher education institutions (HEIs) have invested heavily in learning management systems (LMSs), such as Moodle and BlackBoard, as these systems enhance students’ learning and improve their interactions with the educational systems. While most studies on LMSs have focused on the pre-adoption or acceptance phases of this technology, the determinant factors that influence students’ continuance intention to use LMSs have received less attention in the information systems (IS) literature. Methodology: The theoretical model for this study was primarily drawn from the expectation-confirmation model (ECM). A total of 387 Kuwaiti students, from a private American University in the State of Kuwait, participated in this study. Partial least squares (PLS) was employed to analyze the data. Contribution: This study contributes to the existing scientific knowledge in different ways. First, this study extends the expectation confirmation model (ECM) by integrating factors that are important to students’ continuous intention to use LMSs, including system interactivity, effort expectancy, attitude, computer anxiety, self-efficacy, subjective norms, and facilitating conditions. Second, this study adds on a Kuwaiti literature context by focusing on the continuous intention to use LMSs, which is, to the best of our knowledge, the first study that extends and empirically assesses the applicability of the ECM in the LMSs context in a developing country – Kuwait. Third, this study conceptually and empirically differentiates between satisfaction and attitude, as two separate affect constructs, which were taken as interchangeable factors in ECM, and were disregarded by a large number of prior ECM studies concerned with continuous use intention. Finally, this study aims to assist HEIs, faculty members, and systems’ developers in understanding the main factors that influence students’ continuance use intention of LMSs. Findings: While subjective norms were not significant, the results mainly showed that students’ continuous intention to use Moodle is significantly influenced by performance expectancy, effort expectancy, attitude, satisfaction, self-efficacy and facilitating conditions. The study’s results also confirmed that satisfaction and attitude are two conceptually and empirically different constructs, conflicting with the views that these constructs can be taken as interchangeable factors in the ECM. Recommendations for Practitioners: This study offers several useful practical implications. First, given the significant influence of system interactivity on performance expectancy and satisfaction, faculty members should modify their teaching approach by enabling communication and interaction among instructors, students, and peers using the LMS. Second,
目的/目的:本研究旨在调查影响学生在使用后阶段持续使用Moodle的因素,Moodle是学习管理系统(lms)的一个范例。背景:高等教育机构(HEIs)在学习管理系统(lms)上投入了大量资金,如Moodle和BlackBoard,因为这些系统增强了学生的学习并改善了他们与教育系统的互动。虽然大多数关于lms的研究都集中在该技术的预采用或接受阶段,但影响学生继续使用lms意愿的决定因素在信息系统(IS)文献中受到的关注较少。方法:本研究的理论模型主要来源于期望-确认模型(ECM)。来自科威特国一所私立美国大学的387名科威特学生参加了这项研究。采用偏最小二乘法(PLS)对数据进行分析。贡献:本研究以不同的方式对现有的科学知识做出贡献。首先,本研究通过整合系统交互性、努力预期、态度、电脑焦虑、自我效能感、主观规范和促进条件等对学生持续使用lms意向有重要影响的因素,扩展了期望确认模型(ECM)。其次,本研究通过关注使用lms的持续意图,增加了科威特的文献背景,据我们所知,这是第一个在发展中国家-科威特的lms背景下扩展和实证评估ECM适用性的研究。第三,本研究在概念上和经验上区分了满意度和态度这两个独立的情感构念,这两个构念在ECM中被视为可互换的因素,而在之前关于持续使用意愿的ECM研究中被大量忽视。最后,本研究旨在协助高等教育机构、教师和系统开发者了解影响学生继续使用lms意愿的主要因素。结果发现:在主观规范不显著的情况下,结果主要显示学生持续使用Moodle的意向受到绩效期望、努力期望、态度、满意度、自我效能感和促进条件的显著影响。研究结果还证实,满意度和态度是两个概念上和经验上不同的构念,这与这些构念可以作为ECM中可互换因素的观点相矛盾。对从业者的建议:这项研究提供了一些有用的实际意义。首先,考虑到系统交互性对绩效预期和满意度的显著影响,教师应该通过使用LMS使教师、学生和同伴之间的交流和互动来修改他们的教学方法。其次,鉴于绩效预期、满意度和态度对持续使用教学管理系统的意向有显著影响,高校应针对学生开展有效使用教学管理系统的培训。这样可以提高学生对教学管理系统有用性的认识,提高他们对教学管理系统的态度,并提高他们对教学管理系统的满意度。第三,考虑到努力预期在影响绩效预期、态度和学生持续使用Moodle的意愿方面的重要作用,开发人员和系统程序员应该设计易于使用、高质量和可定制的用户界面的LMS。反过来,这不仅会激发学生的表现期望,还会影响他们的态度和持续使用该系统的意图。对研究人员的建议:本研究在概念上和经验上区分了满意度和态度这两个独立的情感构念,这两个构念在ECM中被视为可互换的因素,但被大量先前关于持续使用意愿的ECM研究所忽视。因此,建议研究人员在研究使用一项技术的持续意图时,在他们的研究模型中包括这两个结构。对社会的影响:本研究可以在其他国家进行比较和验证。此外,本研究的研究模型也可用于其他lms的研究,如Blackboard。未来研究:本研究关注的是不同因素如何影响学生持续使用Moodle的意愿,但没有考虑系统成功的所有决定因素,如系统质量、信息质量、教学和课程内容质量。因此,未来的研究应关注这些质量特性对LMS的影响。
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引用次数: 12
Modelling End Users’ Continuance Intention to Use Information Systems in Academic Settings: Expectation-Confirmation and Stress Perspective 最终用户在学术环境中使用信息系统的持续意向建模:期望-确认和压力视角
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4841
Mohamed Emran Hossain, Imran Mahmud, Rozhan M Idrus
Aim/Purpose: The main aim of this study is to identify the factors that influence the continuance intention of use of innovative systems by non-academic employees of a private university and associated academic institutions in Bangladesh. Background: The targeted academic institutions have introduced many new online services aimed at improving students’ access to information and services, including a new online library, ERP or online forum, and the jobs-tracking system (JTS). This research is focused only on the JTS for two reasons. First, it is one of the most crucial systems for the Daffodil Family, as it enables efficient working across many institutes spread across the country and abroad. Second, it is employed in a wide variety of organisational institutes, not just the university. This study aims to discover negative factors that lead to a decrease in users’ intentions to continue using the system. The ultimate goal is to improve the motivation among administrative staff to use technology-related innovation by reducing or eliminating the problems. Methodology: G* power analysis was employed to determine the expected sample size. A questionnaire survey was conducted of 211 users of a new job tracking system from a private university in Bangladesh, to collect data for testing the suggested research model. The data was analysed using the structural equation technique, which is a powerful multivariate analysis mechanism. Contribution: This research contributes to the body of literature and helps better understand users’ continuance intention in the post-implementation phase of the JTS. It complements the micro-level examinations of continuance intention of using IT, by building on our understanding of the phenomenon at the individual level. Specifically, this study examines the role of technostress where organisations invest in IT to make their users more comfortable with innovative and new technologies like the JTS. Findings: This research develops a theoretical advancement of the expectation-confirmation theory, with implications for IT managers and senior management dealing with IT-related behaviour. All proposed hypotheses were supported. Specifically, the predictors of exhaustion – work overload, work–life balance, and role ambiguity – are significant. The core factors for satisfaction, perceived usefulness, and confirmation, are also found to be significant. Finally, satisfaction and exhaustion significantly influence continuance intention, in both positive and negative ways. Recommendations for Practitioners: This study gives an idea about some of the difficulties that people face when implementing new and innovative IT, particularly in academia in Bangladesh. It offers insights into strategies the management may want to follow when implementing new technology like the JTS. This study suggests strategies to increase satisfaction and reduce technostress among new users to enhance organisational support for change. Recommendation
目的/目的:本研究的主要目的是确定影响孟加拉国一所私立大学和相关学术机构的非学术雇员继续使用创新系统的意愿的因素。背景:目标学术机构已经推出了许多新的在线服务,旨在改善学生获得信息和服务的机会,包括新的在线图书馆,ERP或在线论坛,以及就业跟踪系统(JTS)。由于两个原因,本研究只关注JTS。首先,它是水仙花家族最关键的系统之一,因为它使遍布全国和国外的许多研究所能够有效地工作。其次,它被广泛应用于各种组织机构,而不仅仅是大学。本研究旨在发现导致用户继续使用系统意愿下降的负面因素。最终目标是通过减少或消除这些问题来提高行政人员使用技术相关创新的动机。方法:采用G*功效分析确定预期样本量。对孟加拉国一所私立大学新工作跟踪系统的211名用户进行了问卷调查,以收集数据以检验所建议的研究模型。数据分析采用结构方程技术,这是一种强大的多变量分析机制。贡献:本研究为文献体系做出了贡献,并有助于更好地理解用户在JTS实施后阶段的继续意图。它通过建立在我们对个人层面的现象的理解上,补充了对使用It的持续意图的微观层面的检查。具体来说,本研究考察了技术压力的作用,即组织在IT方面进行投资,以使其用户更适应JTS等创新和新技术。研究结果:本研究发展了期望-确认理论的理论进展,对处理IT相关行为的IT经理和高级管理人员具有启示意义。所有提出的假设都得到了支持。具体来说,疲劳的预测因素——超负荷工作、工作-生活平衡和角色模糊——是显著的。满意度的核心因素,感知有用性和确认,也被发现是重要的。最后,满意和疲惫对继续意愿有显著的正向和负向影响。对从业者的建议:这项研究给出了人们在实施新的和创新的IT时所面临的一些困难的想法,特别是在孟加拉国的学术界。它为管理层在实现JTS等新技术时可能想要遵循的策略提供了见解。本研究提出了提高新用户满意度和减少技术压力的策略,以增强组织对变革的支持。对研究人员的建议:在方法学上,该研究为研究人员提供了减少常见方法偏差威胁的技术。首先,它造成了标准变量和预测变量之间的心理分离。其次,通过建立潜在方法因子模型和使用研究人员可以在其工作中使用的标记变量,积极控制共同方法方差的威胁。本研究通过建立我们对个体层面现象的理解,补充了微观层面对使用IT的持续意图的检验。研究人员可以通过整合其他理论来扩展这个模型。对社会的影响:研究结果显示,超负荷的工作、工作与生活的冲突、以及角色的不明确会产生疲劳感,导致使用者对系统的满意度降低。感知有用性和确认性对用户对系统的满意度和随后的继续使用意愿的影响越来越相似。这些发现对高校管理者应该采取哪些措施来提高使用创新技术的延续意愿具有指导意义。未来研究:未来的研究可以从用户的个人角度概念化五因素人格模型。该模型还可以通过纳入吸收能力的维度来扩展,即用户的动态能力。理解、吸收和应用的吸收能力可能会影响用户对有用性的感知和使用JTS的确认。
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引用次数: 3
Understanding the Determinants of Wearable Payment Adoption: An Empirical Study 理解可穿戴支付采用的决定因素:一项实证研究
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4746
Ahmad A. Rabaa'i, Xiaodi Zhu
Aim/Purpose: The aim of this study is to determine the variables which affect the intention to use Near Field Communication (NFC)-enabled smart wearables (e.g., smartwatches, rings, wristbands) payments. Background: Despite the enormous potential of wearable payments, studies investigating the adoption of this technology are scarce. Methodology: This study extends the Technology Acceptance Model (TAM) with four additional variables (Perceived Security, Trust, Perceived Cost, and Attractiveness of Alternatives) to investigate behavioral intentions to adopt wearable payments. The moderating role of gender was also examined. Data collected from 311 Kuwaiti respondents were analyzed using Structural Equation Modeling (SEM) and multi-group analysis (MGA). Contribution: The research model provided in this study may be useful for academics and scholars conducting further research into m-payments adoption, specifically in the case of wearable payments where studies are scarce and still in the nascent stage; hence, addressing the gap in existing literature. Further, this study is the first to have specifically investigated wearable payments in the State of Kuwait; therefore, enriching Kuwaiti context literature. Findings: This study empirically demonstrated that behavioral intention to adopt wearable payments is mainly predicted by attractiveness of alternatives, perceived usefulness, perceived ease of use, perceived security and trust, while the role of perceived cost was found to be insignificant. Recommendations for Practitioners: This study draws attention to the importance of cognitive factors, such as perceived usefulness and ease of use, in inducing users’ behavioral intention to adopt wearable payments. As such, in the case of perceived usefulness, smart wearable devices manufacturers and banks enhance the functionalities and features of these devices, expand on the financial services provided through them, and maintain the availability, performance, effectiveness, and efficiency of these tools. In relation to ease of use, smart wearable devices should be designed with an easy to use, high quality and customizable user interface. The findings of this study demonstrated the influence of trust and perceived security in motivating users to adopt wearable payments, Hence, banks are advised to focus on a relationship based on trust, especially during the early stages of acceptance and adoption of wearable payments. Recommendation for Researchers: The current study validated the role of attractiveness of alternatives, which was never examined in the context of wearable payments. This, in turn, provides a new dimension about a determinant factor considered by customers in predicting their behavioral intention to adopt wearable payments. Impact on Society: This study could be used in other countries to compare and verify the results. Additionally, the research model of this study could also be used to investigate other m-payments methods, such as
目的/目的:本研究的目的是确定影响使用支持近场通信(NFC)的智能可穿戴设备(例如智能手表、戒指、腕带)支付意愿的变量。背景:尽管可穿戴支付具有巨大的潜力,但调查这项技术采用情况的研究很少。方法:本研究扩展了技术接受模型(TAM),增加了四个变量(感知安全、信任、感知成本和替代方案吸引力),以调查采用可穿戴支付的行为意图。研究还考察了性别的调节作用。从311名科威特受访者中收集的数据使用结构方程模型(SEM)和多组分析(MGA)进行分析。贡献:本研究提供的研究模型可能对进一步研究移动支付采用的学者和学者有用,特别是在研究较少且仍处于起步阶段的可穿戴支付的情况下;因此,解决现有文献中的差距。此外,这项研究是第一个专门调查科威特国可穿戴支付的研究;从而丰富了科威特语境文学。研究发现:通过实证研究发现,可穿戴支付的行为意愿主要由替代品的吸引力、感知有用性、感知易用性、感知安全性和信任来预测,而感知成本的作用不显著。对从业者的建议:本研究关注认知因素,如感知有用性和易用性,在诱导用户采用可穿戴支付的行为意愿方面的重要性。因此,在感知有用性的情况下,智能可穿戴设备制造商和银行增强了这些设备的功能和特性,扩展了通过它们提供的金融服务,并保持了这些工具的可用性、性能、有效性和效率。在易用性方面,智能可穿戴设备应该设计一个易于使用、高质量和可定制的用户界面。本研究的结果证明了信任和感知安全对激励用户采用可穿戴支付的影响,因此,建议银行关注基于信任的关系,特别是在接受和采用可穿戴支付的早期阶段。给研究人员的建议:目前的研究证实了替代品吸引力的作用,这在可穿戴支付的背景下从未被研究过。这反过来又提供了一个新的维度,即客户在预测他们采用可穿戴支付的行为意愿时所考虑的决定因素。对社会的影响:本研究可以在其他国家进行比较和验证。此外,本研究的研究模型也可用于研究其他移动支付方式,如移动钱包和P2P支付。未来研究:未来的研究应该从跨国家和跨文化的角度来考察所提出的模型,并考虑其他经济、环境和技术因素。此外,未来的研究可能会进行纵向研究,以解释时间变化和使用体验如何影响用户采用可穿戴支付的行为意图。最后,虽然本研究包含了影响因素和抑制因素,但社会影响、感知兼容性、个人创新性、流动性和定制化等其他因素可以在未来的研究中考虑。
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引用次数: 12
The Impact of Knowledge Management on Firm Innovativeness via Mediating Role of Innovative Culture – The Case of MNEs in Malaysia 知识管理通过创新文化的中介作用对企业创新能力的影响——以马来西亚跨国公司为例
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4873
Anantha Raj A. Arokiasamy, K. Nguyen, Hoa Thi Nhu Nguyen
Aim/Purpose: This paper aimed to examine the impact of knowledge management on firm innovativeness of multinational enterprises (MNEs) via the mediating role of innovative culture in Malaysia. Background: Inadequate management practices and growing competition among MNEs operating in developing nations, notably in Malaysia, have hindered their organizational success. Although several studies have shown that knowledge management has a substantial impact on MNEs’ success, it is not apparent if innovation at the company level has a direct impact on their performance. Thus, there is no definitive evidence between knowledge management with business innovativeness and organizational success. Methodology: This study adopted a quantitative approach based on a cross-sectional survey and descriptive design to gather the data in a specific period. A convenient sampling approach was used to select 296 respondents from Malaysia-dependent MNEs of different industries. One of the advantages of this study methodology is that the sample targeted many fields. Afterward, SPSS AMOS 24.0 software package analysis was performed to test the hypotheses. Contribution: The study contributes to knowledge management and firm innovativeness literature through advancing innovative culture as a mediating factor that accounts for the link between these two constructs, especially from an emerging economy perspective. The research findings also offer managerial implications for organizations in their quest to improve firm innovativeness. Findings: The results support that innovative culture significantly affects MNEs’ performance. Innovative culture enhances the capability of MNEs to be innovative that finally leads to the superior performance of firm innovativeness. Recommendations for Practitioners: According to this research, companies that exhibit an innovative culture, the acquisition of new information, the conversion of tacit knowledge into explicit knowledge, the application of knowledge, and the safeguarding of knowledge, all have a positive effect on their innovativeness. This means that for organizations to run an innovative MNE in Malaysia, a creative culture must be fostered since the current study has shown how it is seen as a catalyst that facilitates learning, transformation, and implementation of relevant knowledge. Recommendation for Researchers: Future studies should be carried out in other sectors aside from the manufacturing sector using the same scales used to measure knowledge management. Furthermore, a comparative analysis of knowledge management and firm innovativeness using innovative culture as a mediator should be researched in other developing economies. Impact on Society: While the main aim of this study was to better understand how and why MNEs operate the way they do, it had an indirect impact on the business and political tactics taken by CEOs and managers working in MNEs in developing countries, as this research has shown. Future Research
目的/目的:本文旨在通过马来西亚创新文化的中介作用来研究知识管理对跨国企业(MNEs)创新能力的影响。背景:在发展中国家经营的跨国公司,特别是在马来西亚,管理实践不足和竞争日益激烈,阻碍了它们在组织上的成功。虽然有几项研究表明,知识管理对跨国公司的成功有重大影响,但公司层面的创新是否对其绩效有直接影响并不明显。因此,知识管理与企业创新和组织成功之间没有明确的证据。方法:本研究采用定量方法,采用横断面调查和描述性设计,收集特定时期的数据。采用方便的抽样方法,从依赖马来西亚的不同行业的跨国公司中选择了296名受访者。这种研究方法的优点之一是样本针对许多领域。然后采用SPSS AMOS 24.0软件包分析对假设进行检验。贡献:本研究通过推动创新文化作为解释这两个结构之间联系的中介因素,特别是从新兴经济体的角度,对知识管理和企业创新文献做出了贡献。研究结果也为组织寻求提高企业创新能力提供了管理启示。研究发现:创新文化对跨国公司绩效有显著影响。创新文化增强了跨国公司的创新能力,从而导致企业创新能力的卓越表现。对从业者的建议:本研究发现,具有创新文化的企业,新信息的获取、隐性知识向显性知识的转化、知识的应用和知识的保护,都对其创新能力有积极的影响。这意味着,对于在马来西亚经营创新型跨国公司的组织来说,必须培养一种创新文化,因为目前的研究表明,创新文化是如何被视为促进学习、转型和实施相关知识的催化剂。对研究人员的建议:未来的研究应该在制造业以外的其他部门进行,使用用于测量知识管理的相同量表。此外,其他发展中经济体也应该研究以创新文化为中介的知识管理与企业创新能力的比较分析。对社会的影响:虽然本研究的主要目的是更好地理解跨国公司如何以及为什么以他们的方式运作,但正如本研究所表明的那样,它对在发展中国家的跨国公司工作的首席执行官和经理采取的商业和政治策略产生了间接影响。未来的研究:未来的研究应该采用本研究中提出的方法,并在其他部门,如新兴国家和发达国家的主要企业中进行研究,以验证结果并进一步概括结论。还应结合其他方法来调查跨国公司绩效的其他维度,包括市场导向、技术导向和创业导向。
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引用次数: 2
Entrepreneurial Leadership and Organisational Performance of SMEs in Kuwait: The Intermediate Mechanisms of Innovation Management and Learning Orientation 创业领导与科威特中小企业组织绩效:创新管理与学习导向的中介机制
Q2 Computer Science Pub Date : 2021-01-01 DOI: 10.28945/4887
Fahad Awad Sawaean, Khairul A. M. Ali, Ahmad Awad Alenezi
Aim/Purpose: This study aimed to investigate the impact of innovation management and learning orientation as the mechanisms playing the role of an intermediate relationship between entrepreneurial leadership and organisational performance of small and medium enterprises (SMEs) in Kuwait. Background: SMEs are currently among the principal economic instruments in most industrialised and developing countries. The contribution of SMEs can be viewed from various perspectives primarily related to the crucial role they play in developing entrepreneurial activities, employment generation, and improving innovativeness. Developing countries, including Kuwait and other countries, in the Gulf Cooperation Council (GCC), have recognised the key role played by SMEs as a strong pillar of growth. Consequently, many governments have formulated policies and programmes to facilitate the growth and success of SMEs. Unfortunately, the organisational performance of SMEs in developing countries, particularly in Kuwait, remains below expectations. The lagged growth could be due to a lack of good managerial practices and increasing competition that negatively impact their performance. Numerous researchers discovered the positive effect of entrepreneurial leadership on SMEs’ performance. However, a lack of clarity remains regarding the direct impact of entrepreneurial leadership on SMEs’ performance, especially in developing countries. Therefore, the nexus between entrepreneurial leadership and organisational performance is still indecisive and requires further studies. Methodology: This study adopted a quantitative approach based on a cross-sectional survey and descriptive design to gather data within a specific period. The data were collected by distributing a survey questionnaire to Kuwaiti SMEs’ owners and Chief Executive Officers (CEOs) via online and on-hand instruments. A total of 384 useable questionnaires were obtained. Moreover, the partial least square-structural equation modelling (PLS-SEM) analysis was performed to test the hypotheses. Contribution: The current study contributed to the existing literature by developing a moderated mediation model integrating entrepreneurial leadership, innovation management, and learning orientation. The study also investigated their effect on the organisational performance of SMEs. The study findings also bridged the existing significant literature gap regarding the role of these variables on SMEs’ performance in developing countries, particularly in Kuwait, due to the dearth of studies linking these variables in this context. Furthermore, this study empirically confirmed the significant effect of innovation management and learning orientation as intermediate variables in strengthening the relationship between entrepreneurial leadership and organisational performance in the settings of Kuwait SMEs, which has not been verified previously. Findings: The study findings showed the beneficial and significant impact of entrepr
目的:本研究旨在探讨创新管理和学习导向在科威特中小企业企业家领导与组织绩效之间的中介关系中的作用机制。背景:中小企业目前是大多数工业化国家和发展中国家的主要经济手段之一。中小企业的贡献可以从不同的角度来看待,主要与它们在发展创业活动、创造就业和提高创新能力方面发挥的关键作用有关。发展中国家,包括科威特和海湾合作委员会(GCC)的其他国家,已经认识到中小企业作为增长的强大支柱所发挥的关键作用。因此,许多政府制定了促进中小企业成长和成功的政策和方案。不幸的是,发展中国家,特别是科威特的中小企业的组织绩效仍然低于预期。增长滞后可能是由于缺乏良好的管理实践和日益激烈的竞争对它们的业绩产生了负面影响。许多研究者发现了创业型领导对中小企业绩效的积极影响。然而,关于企业领导对中小企业绩效的直接影响,特别是在发展中国家,仍然缺乏明确性。因此,企业家领导与组织绩效之间的关系仍然是不确定的,需要进一步研究。研究方法:本研究采用基于横断面调查和描述性设计的定量方法来收集特定时期的数据。数据是通过在线和现场工具向科威特中小企业所有者和首席执行官(ceo)分发调查问卷收集的。共获得384份可用问卷。此外,采用偏最小二乘结构方程模型(PLS-SEM)分析对假设进行检验。贡献:本研究通过构建创业领导、创新管理和学习导向的中介模型,对已有文献做出了贡献。研究还调查了他们对中小企业组织绩效的影响。由于缺乏在这方面将这些变量联系起来的研究,研究结果还弥补了关于这些变量对发展中国家,特别是科威特中小企业绩效的作用的现有重大文献差距。此外,本研究实证证实了创新管理和学习取向作为中间变量在强化科威特中小企业创业领导与组织绩效之间的关系中具有显著作用,这一研究结果此前未被证实。研究发现:创业领导和创新管理对中小企业的组织绩效有显著的有益影响。创业型领导对中小企业组织绩效的影响主要是创新管理的中介作用和学习导向的调节作用。对从业者的建议:本研究提供了有关政府、政策制定者、中小企业利益相关者和其他当局在努力提高组织绩效水平和促进科威特中小企业发展时所考虑的因素的宝贵见解和信息。中小企业的老板或ceo应该提高对创业领导、创新管理和学习导向重要性的认识和认识。如果采用和系统地管理,这些变量将对业绩和资产产生有益的影响,以实现成功和可持续发展。本研究亦建议中小企的企业家和高层管理人员应创造和维持一种鼓励个人学习行为和创新思维的组织氛围和结构,从而促进支持性文化。该计划将激励他们获取、分享和利用知识,并提高他们在所有生产过程中系统地管理创新的能力,以适应新技术、实践、方法和不同的环境。研究结果突出了创新管理对创业领导力(自变量)与中小企业组织绩效(因变量)之间关系的中介作用,以及在相同关系下学习取向的调节作用。这些关系在发展中国家的中小企业中没有得到广泛处理,需要进一步验证。对社会的影响:本研究旨在影响发展中国家中小企业的企业家和政策制定者所采用的管理策略和做法。 目的:本研究旨在探讨创新管理和学习导向在科威特中小企业企业家领导与组织绩效之间的中介关系中的作用机制。背景:中小企业目前是大多数工业化国家和发展中国家的主要经济手段之一。中小企业的贡献可以从不同的角度来看待,主要与它们在发展创业活动、创造就业和提高创新能力方面发挥的关键作用有关。发展中国家,包括科威特和海湾合作委员会(GCC)的其他国家,已经认识到中小企业作为增长的强大支柱所发挥的关键作用。因此,许多政府制定了促进中小企业成长和成功的政策和方案。不幸的是,发展中国家,特别是科威特的中小企业的组织绩效仍然低于预期。增长滞后可能是由于缺乏良好的管理实践和日益激烈的竞争对它们的业绩产生了负面影响。许多研究者发现了创业型领导对中小企业绩效的积极影响。然而,关于企业领导对中小企业绩效的直接影响,特别是在发展中国家,仍然缺乏明确性。因此,企业家领导与组织绩效之间的关系仍然是不确定的,需要进一步研究。研究方法:本研究采用基于横断面调查和描述性设计的定量方法来收集特定时期的数据。数据是通过在线和现场工具向科威特中小企业所有者和首席执行官(ceo)分发调查问卷收集的。共获得384份可用问卷。此外,采用偏最小二乘结构方程模型(PLS-SEM)分析对假设进行检验。贡献:本研究通过构建创业领导、创新管理和学习导向的中介模型,对已有文献做出了贡献。研究还调查了他们对中小企业组织绩效的影响。由于缺乏在这方面将这些变量联系起来的研究,研究结果还弥补了关于这些变量对发展中国家,特别是科威特中小企业绩效的作用的现有重大文献差距。此外,本研究实证证实了创新管理和学习取向作为中间变量在强化科威特中小企业创业领导与组织绩效之间的关系中具有显著作用,这一研究结果此前未被证实。研究发现:创业领导和创新管理对中小企业的组织绩效有显著的有益影响。创业型领导对中小企业组织绩效的影响主要是创新管理的中介作用和学习导向的调节作用。对从业者的建议:本研究提供了有关政府、政策制定者、中小企业利益相关者和其他当局在努力提高组织绩效水平和促进科威特中小企业发展时所考虑的因素的宝贵见解和信息。中小企业的老板或ceo应该提高对创业领导、创新管理和学习导向重要性的认识和认识。如果采用和系统地管理,这些变量将对业绩和资产产生有益的影响,以实现成功和可持续发展。本研究亦建议中小企的企业家和高层管理人员应创造和维持一种鼓励个人学习行为和创新思维的组织氛围和结构,从而促进支持性文化。该计划将激励他们获取、分享和利用知识,并提高他们在所有生产过程中系统地管理创新的能力,以适应新技术、实践、方法和不同的环境。研究结果突出了创新管理对创业领导力(自变量)与中小企业组织绩效(因变量)之间关系的中介作用,以及在相同关系下学习取向的调节作用。这些关系在发展中国家的中小企业中没有得到广泛处理,需要进一步验证。对社会的影响:本研究旨在影响发展中国家中小企业的企业家和政策制定者所采用的管理策略和做法。 这种影响将反映在他们的公司和整个国民经济的发展中。未来的研究:未来的研究应该在其他发展中经济体和其他商业环境的背景下调查概念研究框架,以概括结果。未来的研究应寻求建立企业家领导风格对其他机制的影响,如知识管理过程,这些机制可以与企业家领导一起有效地提高中小企业的绩效。此外,未来的研究可能会包括中低层管理人员和员工,导致更积极的结果。 这种影响将反映在他们的公司和整个国民经济的发展中。未来的研究:未来的研究应该在其他发展中经济体和其他商业环境的背景下调查概念研究框架,以概括结果。未来的研究应寻求建立企业家领导风格对其他机制的影响,如知识管理过程,这些机制可以与企业家领导一起有效地提高中小企业的绩效。此外,未来的研究可能会包括中低层管理人员和员工,导致更积极的结果。
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引用次数: 4
A Cognitive Knowledge-based Model for an Academic Adaptive e-Advising System 基于认知知识的学术适应性电子咨询系统模型
Q2 Computer Science Pub Date : 2020-10-08 DOI: 10.28945/4633
A. Al-Hunaiyyan, Andrew Thomas Bimba, Salah Alsharhan
Aim/Purpose This study describes a conceptual model, based on the principles of concept algebra that can provide intelligent academic advice using adaptive, knowledge-based feedback. The proposed model advises students based on their traits and academic history. The system aims to deliver adaptive advice to students using historical data from previous and current students. This data-driven approach utilizes a cognitive knowledge-based (CKB) model to update the weights (values that indicate the strength of relationships between concepts) that exist between student’s performances and recommended courses. Background A research study conducted at the Public Authority for Applied Education and Training (PAAET), a higher education institution in Kuwait, indicates that students’ have positive perceptions of the e-Advising system. Most students believe that PAAET’s e-Advising system is effective because it allows them to check their academic status, provides a clear vision of their academic timeline, and is a convenient, user-friendly, and attractive online service. Student advising can be a tedious element of academic life but is necessary to fill Adaptive e-Advising System 248 the gap between student performance and degree requirements. Higher education institutions have prioritized assisting undecided students with career decisions for decades. An important feature of e-Advising systems is personalized feedback, where tailored advice is provided based on students' characteristics and other external parameters. Previous e-Advising systems provide students with advice without taking into consideration their different attributes and goals. Methodology This research describes a model for an e-Advising system that enables students to select courses recommended based on their personalities and academic performance. Three algorithms are used to provide students with adaptive course selection advice: the knowledge elicitation algorithm that represents students' personalities and academic information, the knowledge bonding algorithm that combines related concepts or ideas within the knowledge base, and the adaptive e-Advising model that recommends relevant courses. The knowledge elicitation algorithm acquires student and academic characteristics from data provided, while the knowledge bonding algorithm fuses the newly acquired features with existing information in the database. The adaptive e-Advising algorithm provides recommended courses to students based on existing cognitive knowledge to overcome the issues associated with traditional knowledge representation methods. Contribution The design and implementation of an adaptive e-Advising system are challenging because it relies on both academic and student traits. A model that incorporates the conceptual interaction between the various academic and student-specific components is needed to manage these challenges. While other e-Advising systems provide students with general advice, these earlier models are to
所提出的模型将有利于电子咨询系统开发人员实现可更新的算法,这些算法可以进行测试和改进,为学生提供自适应咨询。所提出的方法可以为顾问提供关于学生特征和当前学术环境之间可能关系的新见解。因此,提供了一种开发新课程的方法和课程推荐方法。
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引用次数: 2
A Multicluster Approach to Selecting Initial Sets for Clustering of Categorical Data 一种选择分类数据聚类初始集的多聚类方法
Q2 Computer Science Pub Date : 2020-10-04 DOI: 10.28945/4643
Carlos Santos-Mangudo, Antonio J. Heras
Aim/Purpose This article proposes a methodology for selecting the initial sets for clustering categorical data. The main idea is to combine all the different values of every single criterion or attribute, to form the first proposal of the so-called multiclusters, obtaining in this way the maximum number of clusters for the whole dataset. The multiclusters thus obtained, are themselves clustered in a second step, according to the desired final number of clusters. Background Popular cluster methods for categorical data, such as the well-known K-Modes, usually select the initial sets by means of some random process. This fact introduces some randomness in the final results of the algorithms. We explore a different application of the clustering methodology for categorical data that overcomes the instability problems and ultimately provides a greater clustering efficiency. Methodology For assessing the performance of the proposed algorithm and its comparison with K-Modes, we apply both of them to categorical databases where the response variable is known but not used in the analysis. In our examples, that response variable can be identified to the real clusters or classes to which the observations belong. With every data set, we perform a two-step analysis. In the first step we perform the clustering analysis on data where the response variable (the real clusters) has been omitted, and in the second step we use that omitted information to check the efficiency of the clustering algorithm (by comparing the real clusters to those given by the algorithm). Contribution Simplicity, efficiency and stability are the main advantages of the multicluster method. A Multicluster Approach to Selecting Initial Sets for Clustering of Categorical Data 228 Findings The experimental results attained with real databases show that the multicluster algorithm has greater precision and a better grouping effect than the classical Kmodes algorithm. Recommendations for Practitioners The method can be useful for those researchers working with small and medium size datasets, allowing them to detect the underlying structure of the data in an intuitive and reasonable way. Recommendations for Researchers The proposed algorithm is slower than K-Modes, since it devotes a lot of time to the calculation of the initial combinations of attributes. The reduction of the computing time is therefore an important research topic. Future Research We are concerned with the scalability of the algorithm to large and complex data sets, as well as the application to mixed data sets with both quantitative and qualitative attributes.
目的本文提出了一种选择分类数据初始集的方法。其主要思想是将每个标准或属性的所有不同值组合起来,形成所谓的多聚类的第一个建议,通过这种方式获得整个数据集的最大聚类数量。由此获得的多簇本身在第二步骤中根据期望的簇的最终数量进行聚类。背景常用的分类数据聚类方法,如众所周知的K-模式,通常通过一些随机过程来选择初始集。这一事实在算法的最终结果中引入了一些随机性。我们探索了分类数据聚类方法的不同应用,该方法克服了不稳定性问题,并最终提供了更高的聚类效率。方法为了评估所提出的算法的性能及其与K-模式的比较,我们将两者都应用于分类数据库,其中响应变量是已知的,但在分析中没有使用。在我们的例子中,该响应变量可以被识别为观测所属的真实集群或类。对于每个数据集,我们执行两步分析。在第一步中,我们对省略了响应变量(真实聚类)的数据进行聚类分析,在第二步中,使用省略的信息来检查聚类算法的效率(通过将真实聚类与算法给出的聚类进行比较)。贡献简单、高效和稳定是多集群方法的主要优点。一种选择初始集进行分类数据聚类的多聚类方法228发现在实际数据库中获得的实验结果表明,多聚类算法比经典的Kmodes算法具有更高的精度和更好的分组效果。对从业者的建议该方法对那些使用中小型数据集的研究人员很有用,使他们能够以直观合理的方式检测数据的底层结构。对研究人员的建议所提出的算法比K-Modes慢,因为它花费了大量时间来计算属性的初始组合。因此,减少计算时间是一个重要的研究课题。未来研究我们关注算法对大型复杂数据集的可扩展性,以及对具有定量和定性属性的混合数据集的应用。
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引用次数: 1
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Interdisciplinary Journal of Information, Knowledge, and Management
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