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This paper investigates the information search behavior of individual investors, particularly the roles played by online and offline social networks, and from the perspective of social capital and technology readiness. The paper uses rough sets analysis as the analytical tool. This study shows that despite the popularity of social network websites, the social capital of online community is still low when compared to the offline community. Hence, online communities play a less limited role in investment informational social support. Furthermore, investors with low social capital are often characterized by more intense reliance within narrow subgroups for investment information. Investors, especially those with high-investment risk profile, are truly hybrid information consumers. Investors who are innovative in technology and transact online are likely to be the users of online sources. Young investors are more likely to seek advice from online friends. The interaction effect among investment information sources is explicitly displayed via the rough sets decision rules. 相似文献
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随着人工智能(AI)技术的快速发展,其在提升教学效率和学习体验方面的潜力日益显现。高等教育机构应积极探索人机协同教学模式,在AI 技术的帮助下优化教学过程,实现教师与学生之间的高效互动。文中详细探讨了AI 技术原理在教育领域的应用,分析了人机协同教学模式的设计框架,包括模式的架构、关键技术的应用以及如何构建个性化的学习路径。同时,分析了教学互动与反馈机制,包括教师与AI 系统的协同工作方式、学生与AI 的互动模式以及通过AI 系统实现的实时反馈与评估机制。 相似文献
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装备战备完好性及其影响因素分析 总被引:1,自引:0,他引:1
介绍了装备战备完好性的概念和国外装备战备完好性的研究现状,在用战备完好率和使用可用度来度量装备战备完好性的基础上,从装备研制和使用两方面系统地分析了影响战备完好性的主要因素并提出解决思路。 相似文献
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Internet technologies are increasingly being used within all knowledge management processes, including knowledge acquisition, knowledge exchange and knowledge use. Although technological issues are key drivers for Internet technologies adoption and use, organizational and environmental aspects have been found to be equally important. This paper extends previous studies on the use of Internet technologies and knowledge management by analyzing factors affecting Web knowledge exchange in small and medium-sized enterprises (SMEs). More specifically, by drawing on the technology–organization–environment framework, a model to examine how distinct contextual factors influence Web knowledge exchange in SMEs is developed. The hypotheses are tested by using structural equation modelling on a large sample of Spanish SMEs from different industries. Results suggest that IT expertise and commitment-based human resource practices positively affect Web knowledge exchange, with the latter being the strongest factor in our proposed model. In contrast, a negative relationship is found between competition and Web knowledge exchange. 相似文献
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Despite the increasing amount of attention paid to virtual reality (VR) tourism and the rising importance of VR tourism, a theoretically integrated model of behavior has not been developed. To fill this void, we build and test a framework based on both innovation diffusion and uses and gratifications theories to explain why people participate in VR tourism. The moderating role of VR tourists’ technology readiness (optimism and innovativeness) between subjective well-being and behavioral intention is also examined. Results demonstrate that authentic experience and subjective well-being are affected by simplicity, benefit, compatibility (attributes of innovation diffusion), informativeness, social interactivity, and playfulness (uses and gratifications attributes). Behavioral intention is more positively influenced by subjective well-being than by authentic experience. The moderating role of technology readiness between subjective well-being and behavioral intention is stronger in individuals with high optimism and innovativeness than their counterparts with low optimism and innovativeness. 相似文献
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随着Internet的迅速发展,人类正在被带到一个新的世界环境之中,即信息空间。发展信息空间的主要技术是通信、感知和计算。文章介绍了信息空间的形成与发展,及通信、感知和计算技术发展对信息空间发展的作用,指出未来全球网络的融合将改变单个网络的特性,将创造出一个全球的网络环境,人们可以在这样的空间环境下从事各种活动。 相似文献
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Advents of new technology have transformed how we currently view and use artificial intelligence (AI). Originally, AI was first developed to assist humans to complete tasks, but AI now takes on more social roles, such as functioning as a companion. However, little is known about how individuals view these different types of AI. Thus, the present study conducted an online experiment to explore people’s perceptions about social AI vs. functional AI. Primary results suggest that individuals have more positive attitudes toward functional AI than social AI. Perceived usefulness of AI is found to have a mediation effect, suggesting functional AI, compared to social AI, leads to stronger perceived usefulness, which consequently fosters more positive attitudes and stronger perceived realism of AI. The results collectively suggest meaningful implications for human-AI communication and human–machine communication research. 相似文献
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在基于负相关的神经网络群学习算法中,相关项由目标输出或网络群输出定义。本文首先证明无论相关项采用何种定义形式,个体网络的目标函数都等价于网络自身性能和群性能的线性组合,线性组合系数由给定参数和网络群规模共同确定。然后给出个体网络目标函数的统一定义,并分析了目标函数内参数的含义。该目标函数表明负相关算法实际是实现多目标优化,所以网络群算法无需负相关概念,从而在概念和实现两方面简化了负相关算法。 相似文献
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随着人工智能技术的快速发展,AI学习助手在教育领域的应用日益广泛。文中旨在探讨AI助手在高职英语教育中的可行性、有效性和影响。首先,构建了基于认知负荷理论和技术整合理论的理论框架,并对AI助手在教育领域的应用现状进行了文献综述。随后分析了AI助手在高职英语教育中的潜在优势和挑战,包括提高学习效率、增强学生参与度、个性化学习体验和促进自主学习等。最后,提出了AI助手在高职英语教育中的应用建议,并探讨了未来的研究方向。 相似文献
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Thomas L. Jacobson 《The Journal of communication》2016,66(5):789-810
This article argues that Amartya Sen's capabilities approach to development should be employed as an overarching conceptual framework for studies of communication for development and social change (CDSC), presenting two justifications. First, the capabilities approach offers CDSC researchers a definition of development, one that is interdisciplinary, cosmopolitan, and oriented to public communication. This approach resembles the scope of modernization theory but is free of modernization theory's dichotomous thinking, neoliberal assumptions, and ethnocentrism. Second, CDSC research can contribute to the capability approach's analysis of communication. I review key capabilities concepts and illustrate the relevance to the capabilities approach of CDSC theory and research. A conclusion summarizes benefits of a capabilities approach to the study of CDSC. 相似文献
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周继来 《电子技术与软件工程》2020,(17):154-155
本文针对如何运用AI图像识别技术对烟草行业主要的虫情(烟草甲、烟草粉螟)进行识别,建立深度学习的系统监测技术,通过SVM向量计算实现对虫情的实时监测,同时构建对应的自学机制;研究效果表明,AI图像识别较好地实现了虫情的实时监测,解决了人工监测带来了一系列问题,为之后烟草虫情监测的研究奠定了重要基础。 相似文献
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本文概述了群众对人工智能的一些误解以及这个行业三次兴起和两次衰败的经历以及经验教训,并通过查阅资料对人工智能的未来发展方向以及它对其他行业的影响做出自己的简单预测。 相似文献
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舰船系统战备完好性的确定和评估步骤 总被引:2,自引:2,他引:2
施建荣 《电子产品可靠性与环境试验》2004,(5):1-4
战备完好性是舰船系统在使用过程中需要达到的一种质量特性。它是通过一系列工程活动设计、制造,并在系统中形成的。由于舰船的任务特点是远离岸基作战,出航时间长,各种任务状态(巡航、交战、锚泊)交替进行,这就要求舰船的各种系统具有良好的战备完好性,一旦出现故障,应能在海上及时修复,因此,在新装备的研制中,把使用可用性作为系统研制的主要目标,也作为在使用中系统必须保持的目标.这将从根本上解决舰船战斗力快速形成的问题。 相似文献
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目前,高职信息技术类专业编码设计类课程的教学面临巨大的困难,而AI编程则给该类课程带来了新的挑战。 文中提出采用项目式翻转课堂,以便让AI助力教学而非困扰教学,在不同课堂中发挥AI和学生的不同作用,扮演不同的角色。在课堂练习课前,学生作为学习者通过模仿AI的示范来学习;在课堂实验课前,学生通过求助AI解决技术应用中的疑惑;在课程设计课中,通过AI的指导探索技术应用的可能性;在毕业设计过程中,学生可作为工作任务的主导者,充分利用AI的资源和的能力,提高产出效率和质量。 相似文献