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A Low-Complexity Channel Estimation in Internet of Vehicles in Intelligent Transportation Systems for 5G Communication 用于5G通信的智能交通系统中的车联网低复杂度信道估计
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-28 DOI: 10.4018/joeuc.326759
Lichao Yan
The objective of utilizing mmWave/subTHz bands in next-generation wireless communications is to be achieved. Despite this, since reconfigurable intelligent surface (RIS)-assisted systems depend on the transmission channel configuration, the system architecture design, and the methods used to derive channel state information (CSI) on a base station (BS) and RIS, channel estimation continues to be the main problem with these systems. This research proposes an innovative RIS-based and compressed sensing-based channel estimation technique for the internet of vehicles. To obtain the best phase shift matrix, the communication model must first be constructed, and the angle-of-arrival and departure are utilized. Channel estimation is then performed based on the perception matrix. The training overhead and complexity of the channel estimation are reduced by considering the position information of the vehicles in the optimal phase shift matrix. Simulation results show that the proposed algorithm exhibits better channel estimation and low complexity performance compared with existing algorithms.
在下一代无线通信中利用毫米波/次太赫兹频段的目标即将实现。尽管如此,由于可重构智能表面(RIS)辅助系统依赖于传输信道配置、系统架构设计以及用于在基站(BS)和RIS上获取信道状态信息(CSI)的方法,信道估计仍然是这些系统的主要问题。本研究提出了一种创新的基于ris和压缩感知的车联网信道估计技术。为了得到最佳的相移矩阵,首先要建立通信模型,并利用到达角和离开角。然后基于感知矩阵进行信道估计。通过在最优相移矩阵中考虑车辆的位置信息,降低了信道估计的训练开销和复杂度。仿真结果表明,与现有算法相比,该算法具有更好的信道估计性能和较低的复杂度。
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引用次数: 0
The Path Choice of Manufacturing Enterprises to Enhance Competitiveness: Service Transformation or Product Innovation? 制造业企业提升竞争力的路径选择:服务转型还是产品创新?
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-28 DOI: 10.4018/joeuc.326932
Xiekui Zhang, Yihan Huang, Yiting Li
How to enhance the competitiveness of manufacturing enterprises using innovation is an important topic in theory and practice. Data from the world input-output table and the Chinese industrial enterprise database are used to study the difference in the influence of service transformation and product innovation on enterprise competitiveness. The authors show that (1) both service transformation and product innovation contribute to enhancing enterprise competitiveness, but the former has a better effect, and this conclusion is still valid after replacing variables and controlling for endogeneity, and and (2) the “competitiveness effect” of service transformation and product innovation has strong heterogeneity in urban administrative levels, GVC embedding location, and enterprise ownership. (3) As two different innovation methods, service transformation and product innovation have synergistic and balanced effects.
如何利用创新来提升制造企业的竞争力是一个重要的理论和实践课题。利用世界投入产出表和中国工业企业数据库的数据,研究服务转型和产品创新对企业竞争力影响的差异。研究表明:(1)服务转型和产品创新都有助于提升企业竞争力,但前者的效果更好,且在替换变量和控制内生性后,这一结论仍然成立;(2)服务转型和产品创新的“竞争力效应”在城市行政级别、全球价值链嵌入地点和企业所有制上存在较强的异质性。(3)服务转型和产品创新作为两种不同的创新方式,具有协同和平衡效应。
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引用次数: 0
The Application of Big Data and Artificial Intelligence Technology in Enterprise Information Security Management and Risk Assessment 大数据和人工智能技术在企业信息安全管理和风险评估中的应用
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-28 DOI: 10.4018/joeuc.326934
Qi Wang, B. Zong, Yong Lin, Zhuangzhuang Li, Xvbiao Luo
With the development of digitalization and Internet technology, enterprise information security is facing more and more challenges. Many enterprises have begun to adopt big data (BD) and artificial intelligence (AI) technology for risk assessment (RA) and prediction to effectively manage information security risks. This article discusses the application of BD and AI technology in enterprise information security management (ISM) and RA from two aspects. Firstly, the mobile payment signature scheme based on number theory research unit is used to improve the security of the mobile payment system. This scheme uses lattice algorithms to achieve fast key generation, signing, and verification and can resist traditional cryptographic attacks. Secondly, a set of enterprise ISM and RA system is established, including risk identification, RA, monitoring and early warning, emergency response, and other links. BD and AI technology is used to analyze internal and external data to provide accurate RA results to achieve automated RA.
随着数字化和互联网技术的发展,企业信息安全面临着越来越多的挑战。许多企业已经开始采用大数据(BD)和人工智能(AI)技术进行风险评估和预测,以有效管理信息安全风险。本文从两个方面论述了BD和AI技术在企业信息安全管理(ISM)和RA中的应用。首先,采用基于数论研究单元的移动支付签名方案来提高移动支付系统的安全性。该方案利用格算法实现密钥的快速生成、签名和验证,并能抵抗传统的密码攻击。其次,建立了一套企业ISM和RA体系,包括风险识别、RA、监测预警、应急响应等环节。BD和AI技术用于分析内部和外部数据,以提供准确的RA结果,从而实现自动化RA。
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引用次数: 0
How Is Paradoxical Leadership Linked to Exploratory Innovation? 悖论式领导与探索性创新有何关联?
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-24 DOI: 10.4018/joeuc.326766
Xiao Deng, Jiayu Li, Yaying Huang, Linlin Wang
The promotion of innovation is a crucial leadership function. However, empirical evidence on the role of paradoxical leadership in innovation is scarce. Based on paradox theory, this study presents an effective model to investigate the relationship between paradoxical leadership and employee exploratory innovation. Based on a survey of 358 employees in China, it was observed that paradoxical leadership promotes knowledge sharing among employees, consequently stimulating exploratory innovation. The study results showed that environmental dynamism plays a negative moderating role in the relationship between employee knowledge sharing and exploratory innovation. This study contributes to theoretical and empirical studies on paradoxical leadership and provides new perspectives for promoting exploratory innovation.
推动创新是一项至关重要的领导职能。然而,关于悖论式领导在创新中的作用的实证证据很少。基于悖论理论,本研究提出了一个有效的模型来研究悖论型领导与员工探索性创新之间的关系。通过对中国358名员工的调查发现,悖论式领导促进了员工之间的知识共享,从而激发了探索性创新。研究结果表明,环境动态性在员工知识共享与探索性创新的关系中起负向调节作用。本研究有助于对悖论型领导的理论和实证研究,并为促进探索性创新提供新的视角。
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引用次数: 0
Design of a User Comment Management System Based on Text Mining 基于文本挖掘的用户评论管理系统的设计
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-21 DOI: 10.4018/joeuc.326611
Abuduaini Abudureheman
Presently, text mining in e-commerce reviews predominantly focus on singular sentiment analysis, yet constraints persist in sentiment score computation, semantic inclination discernment, and lexicon construction. To address these limitations, this study establishes an e-commerce user comment management system based on text mining. It performs part-of-speech tagging and dependency grammar analysis on the historical corpus of e-commerce, unveiling collocations that potentially convey users' emotive predispositions. Subsequently, a dependency grammar rule table is formulated for the extraction of emotional words. The enhanced BiGRU model is employed for bidirectional extraction of textual features, which are subsequently fused with the TextCNN model. Test results evince that the system effectively accomplishes the desired objectives, with positive comments attaining accuracy and recall rates of 93.49% and 96.98%, respectively, thereby mitigating the drawbacks associated with laborious operations and inadequate precision inherent in extant e-commerce comment analysis systems.
目前,电子商务评论中的文本挖掘主要集中在单数情感分析上,但情感得分计算、语义倾向辨别和词汇构建等方面仍然存在限制。为了解决这些局限性,本研究建立了一个基于文本挖掘的电子商务用户评论管理系统。它对电子商务的历史语料库进行词性标注和依赖语法分析,揭示可能传达用户情感倾向的搭配。随后,为情感词的提取制定了依赖语法规则表。增强的BiGRU模型用于文本特征的双向提取,随后将其与TextCNN模型融合。测试结果表明,该系统有效地实现了预期目标,正面评论的准确率和召回率分别为93.49%和96.98%,从而缓解了现有电子商务评论分析系统中操作繁琐和精度不足的缺点。
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引用次数: 0
The UTAUT Model in the Adoption of E-Learning Technology 电子学习技术应用中的UTAUT模型
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-21 DOI: 10.4018/joeuc.326607
J. Qiu
To provide strategies for developing and optimising e-learning technology, this paper conducts research on the e-banking platform based on e-learning technology. Firstly, this paper points out the technical content of the electronic banking platform. Secondly, based on the Unified Theory of Acceptance and Use of Technology (UTAUT) model, empirical analysis is conducted on the influencing factors of user willingness to use electronic banking platforms, including the introduction, construction, hypothesis formulation, selection of indicator variables, and questionnaire design. Finally, the results of empirical analysis are explored. The result shows that: (1) The Cronbach's α values of the sub-scales of the questionnaire designed are all greater than 0.7, and the load of different factors in each dimension of the scale is more significant than 0.5. (2) Perceived risk has the highest average among all influencing factors, with a value of 4.13. (3) AMOS (Analysis of Moment Structure) 21.0 was calculated using a standardized path coefficient similar to the model.
为了给电子学习技术的开发和优化提供策略,本文对基于电子学习技术的电子银行平台进行了研究。本文首先指出了电子银行平台的技术内容。其次,基于UTAUT (Unified Theory of Acceptance and Use of Technology)模型,对用户使用电子银行平台意愿的影响因素进行实证分析,包括引入、构建、假设制定、指标变量选择、问卷设计等。最后,对实证分析结果进行了探讨。结果表明:(1)所设计问卷各子量表的Cronbach’s α值均大于0.7,各维度不同因子的负荷量均大于0.5。(2)感知风险在所有影响因素中平均值最高,为4.13。(3)采用与模型相似的标准化路径系数计算AMOS (Analysis of Moment Structure) 21.0。
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引用次数: 0
Research on the Impact of Green Technology Innovation on Enterprise Financial Information Management Based on Compound Neural Network 基于复合神经网络的绿色技术创新对企业财务信息管理的影响研究
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-20 DOI: 10.4018/joeuc.326519
Si Sun, Xuandong Zhang, Li Dong, Lu Fan, Xiaojing Liu
To enhance the early warning level of financial risks in enterprises, mitigate the financial risks arising from diverse adversities, and drive green technological innovation and sustainable development, this study proposes a financial risk prediction model (MS-BGRU) that amalgamates multi-scale convolution and two-way GRU. Firstly, a multi-scale feature extraction module is devised that assimilates financial information from various scales by leveraging hole convolution with distinct expansion rates. This assimilated information is then fused to obtain richer context information. Secondly, the BGRU network is employed to discern the sequence characteristics and time information of financial indicators. The empirical results showcase that the model proposed in this paper exhibits a high identification accuracy, surging up to 98.03%, which surpasses other benchmark models. The model can accurately prophesize the financial risk of enterprises and offer guidance to management decision-makers in averting financial risk.
为了提高企业财务风险预警水平,缓解多种逆境带来的财务风险,推动绿色技术创新和可持续发展,本研究提出了一种多尺度卷积和双向GRU相结合的财务风险预测模型(MS-BGRU)。首先,设计了一个多尺度特征提取模块,利用不同扩展率的孔卷积来吸收不同尺度的金融信息;然后将这些被同化的信息融合以获得更丰富的上下文信息。其次,利用BGRU网络识别财务指标的序列特征和时间信息。实证结果表明,本文提出的模型具有较高的识别准确率,高达98.03%,优于其他基准模型。该模型能够准确预测企业的财务风险,为管理决策者规避财务风险提供指导。
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引用次数: 0
Trust, Perceived Benefits, and Purchase Intention in C2C E-Commerce: An Empirical Testing in China 信任、感知利益与C2C电子商务中的购买意愿:中国的实证检验
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-11 DOI: 10.4018/joeuc.325508
Xingchen Pan, Weijian Xiong, Shengchao Pu, Fanshen Han, Anqi Zhang
Consumers in China highly favor the consumer-to-consumer (C2C) e-commerce model, so it is crucial to understand the relationship between consumers' trust in merchants, perceived benefits, and purchase intentions. This article first elaborates on applying trust, perceived benefits, and purchase intention in China's C2C e-commerce model. Then, corresponding hypotheses are proposed, and the questionnaire is designed. Finally, reliability, validity, correlation, and regression analysis are applied to analyze the sample structure and the relationships between various variables. The experimental results show that the reliability and validity detection values are higher than 0.8 and 0.75, respectively, indicating that the reliability and validity of the questionnaire designed are qualified. In the correlation analysis, the hypothesis proposed is validated through correlation coefficients, and the rationality of the hypothesis is further verified through regression analysis.
中国消费者非常青睐C2C (consumer-to-consumer)电子商务模式,因此了解消费者对商家的信任、感知利益和购买意愿之间的关系至关重要。本文首先阐述了信任、感知利益和购买意愿在中国C2C电子商务模式中的应用。然后,提出相应的假设,设计问卷。最后,运用信度、效度、相关和回归分析对样本结构和各变量之间的关系进行分析。实验结果表明,信度和效度检测值分别大于0.8和0.75,表明所设计的问卷信度和效度是合格的。在相关分析中,通过相关系数对提出的假设进行验证,并通过回归分析进一步验证假设的合理性。
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引用次数: 21
A Study on the Influence of Technology Products Introduced Into Green Hotels 科技产品引入绿色酒店的影响研究
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-11 DOI: 10.4018/joeuc.325649
C. Pai, Yunfeng Shang, Long Wang, Yin Zhang
Green hotels have become the inevitable trend of the hotel industry development under the background of sustainable development. The questionnaire of this study was modified from the scale of the literature, and the survey was conducted by means of convenience sampling. The respondents were the consumers who had stayed in hotels in the past two years. A total of 566 questionnaires were distributed, and 491 valid questionnaires were collected. The effective recovery rate was 86.7%. The results show that technology products of different learning types have significant influence on tourists' acceptance, and the technostress has significant differences on the acceptance of type of technology products. However, hotel types have no significant impact on technology learning products and tourist acceptance. This study expects to provide the analysis results for the reference of green hotel industry development in order to improve the practical benefits of hotel technology product investment.
在可持续发展的背景下,绿色酒店已成为酒店业发展的必然趋势。本研究的问卷是在文献量表的基础上进行修改的,采用方便抽样的方式进行调查。受访者是在过去两年内住过酒店的消费者。共发放问卷566份,回收有效问卷491份。有效回收率为86.7%。结果表明,不同学习类型的技术产品对游客的接受程度有显著影响,技术压力对技术产品接受程度有显著差异。酒店类型对技术学习产品和游客接受度的影响不显著。本研究期望为绿色酒店行业发展提供分析结果参考,以提高酒店技术产品投资的实际效益。
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引用次数: 0
The Analysis of Key Success Factors Affecting the Satisfaction of Agricultural Organizational Information Systems 影响农业组织信息系统满意度的关键成功因素分析
IF 6.5 3区 管理学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-07-10 DOI: 10.4018/joeuc.325506
Yingli Wu, Qingquan Liu, Sheng Zhou, Mingming Zhou, Xin Li
This article takes the WeChat public account of agriculture and rural areas in J Province as the research object to explore the influencing factors of satisfaction of organizational information system (IS) in agricultural sector. Firstly, new media is taken as the background, and the characteristics and communication factors of agricultural informatization are analyzed. Secondly, a user satisfaction questionnaire of the WeChat public account of agriculture and rural areas of J Province is designed based on the satisfaction theory and the success model of IS. Finally, the influencing factors of users' satisfaction with agricultural and rural WeChat public accounts are studied through questionnaire survey. The results show that the correlation coefficients among perceived value (PV), information quality (IQ), perceived usefulness (PU), and platform satisfaction are all positive, and p £ 0.01.
本文以J省农业农村公众账号b微信为研究对象,探讨农业部门组织信息系统满意度的影响因素。首先,以新媒体为背景,分析了农业信息化的特点和传播因素。其次,基于满意度理论和is成功模型,设计了J省农业农村公众号微信用户满意度问卷。最后,通过问卷调查的方式对农村网b微信公众号用户满意度的影响因素进行研究。结果表明:感知价值(PV)、信息质量(IQ)、感知有用性(PU)与平台满意度的相关系数均为正,且p < 0.01;
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引用次数: 0
期刊
Journal of Organizational and End User Computing
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