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Multi-Phase Information Theory-Based Algorithm for Edge Detection of Aerial Images 基于多相信息理论的航空图像边缘检测算法
Q4 Computer Science Pub Date : 2022-04-07 DOI: 10.32890/jict2022.21.2.4
A. Elaraby, Z. Al-Ameen
Edge detection is the diverse way used to detect boundaries in digital images. Many methods exist to achieve this purpose, yet not all of them can produce results with high detection ratios. Some may have high complexity, and others may require numerous inputs. Therefore, a new multi-phase algorithm that depends on information theory is introduced in this article to detect the edges of aerial images adequately in a fully automatic manner. The proposed algorithm operated by utilizing Shannon and Hill entropies with specific rules along with a non-complex edge detector to record the vital edge information. The proposed algorithm was examined with different aerial images, its performances appraised against six existing approaches, and the outcomes were assessed using three image evaluation methods. From the results, promising performances were recorded as the proposed algorithm performed the best in many aspects and provided satisfactory results. The results of the proposed algorithm had high edge detection ratios as it was able to capture most of the significant edges of the given images. Such findings make the proposed algorithm desirable to be used as a key image detection method with other image-related applications.
边缘检测是用于检测数字图像边界的多种方法。有许多方法可以达到这一目的,但并不是所有的方法都能产生高检测率的结果。有些可能非常复杂,而另一些可能需要大量输入。因此,本文提出了一种新的基于信息论的多阶段算法,以全自动的方式充分检测航拍图像的边缘。该算法利用具有特定规则的香农和希尔熵以及一个非复杂的边缘检测器来记录重要的边缘信息。利用不同的航空图像对该算法进行了检验,并与六种现有方法进行了性能评估,并使用三种图像评估方法对结果进行了评估。从结果来看,该算法在许多方面都表现最好,并提供了令人满意的结果。该算法的结果具有较高的边缘检测率,因为它能够捕获给定图像的大多数重要边缘。这些发现使得所提出的算法可以作为关键的图像检测方法与其他图像相关的应用。
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引用次数: 0
Botnet Detection in IoT Devices Using Random Forest Classifier with Independent Component Analysis 基于独立分量分析的随机森林分类器在物联网设备中的僵尸网络检测
Q4 Computer Science Pub Date : 2022-04-07 DOI: 10.32890/jict2022.21.2.3
Nazmus Sakib Akash, Shakir Rouf, Sigma Jahan, Amlan Chowdhury, J. Uddin
With rapid technological progress in the Internet of Things (IoT), it has become imperative to concentrate on its security aspect. This paper represents a model that accounts for the detection of botnets through the use of machine learning algorithms. The model examined anomalies, commonly referred to as botnets, in a cluster of IoT devices attempting to connect to a network. Essentially, this paper exhibited the use of transport layer data (User Datagram Protocol- UDP) generated through IoT devices. An intelligent novel model comprising Random Forest Classifier with Independent Component Analysis (ICA) was proposed for botnet detection in IoT devices. Various machine learning algorithms were also implemented upon the processed data for comparative analysis. The experimental results of the proposed model generated state-of-the-art results for three different datasets, achieving up to 99.99% accuracy effectively with the lowest prediction time of 0.12 seconds without overfitting. The significance of this study lies in detecting botnets in IoT devices effectively and efficiently under all circumstances by utilizing ICA with Random Forest Classifier, which is a simple machine learning algorithm.
随着物联网(IoT)技术的快速进步,关注其安全方面已成为当务之急。本文代表了一个通过使用机器学习算法来检测僵尸网络的模型。该模型检查了试图连接到网络的物联网设备集群中的异常情况,通常称为僵尸网络。从本质上讲,本文展示了通过物联网设备生成的传输层数据(用户数据报协议- UDP)的使用。针对物联网设备中的僵尸网络检测问题,提出了一种基于独立分量分析的随机森林分类器智能模型。在处理后的数据上实现各种机器学习算法进行对比分析。实验结果表明,该模型在三个不同的数据集上得到了最先进的结果,有效地达到了99.99%的准确率,最低预测时间为0.12秒,没有过拟合。本研究的意义在于利用ICA与Random Forest Classifier这一简单的机器学习算法,在任何情况下都能有效高效地检测IoT设备中的僵尸网络。
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引用次数: 4
Social Media Skills and Social Media Political Expression: The Mediating Role of Pro-Attitudinal and Cross-Cutting Exposure 社交媒体技能与社交媒体政治表达:亲态度与跨领域接触的中介作用
Q4 Computer Science Pub Date : 2022-02-05 DOI: 10.51548/joctec-2022-003
T. Suzuki, Alcides Velasquez
Individuals’ ability to use social media effectively, efficiently, and appropriately is increasingly important as these platforms become a common source for news and political expression. Differences in social media skills have important implications for politics, potentially generating a democratic divide. The present study examines the extent to which an individual’s perceptions of information navigation and social skills, two dimensions of social media skills, are related to social media political expression through cross-cutting exposure and pro-attitudinal exposure. Survey results show that social media skills are positively related to social media political expression through pro-attitudinal exposure, and social media skills hold a direct negative relationship with social media political expression. Implications of a social media skills divide and its relationship with social media political expression are discussed.
随着这些平台成为新闻和政治表达的共同来源,个人有效、高效和适当地使用社交媒体的能力变得越来越重要。社交媒体技能的差异对政治有着重要影响,可能会产生民主分歧。本研究考察了个人对信息导航和社交技能(社交媒体技能的两个维度)的感知与社交媒体政治表达的关系程度,通过交叉接触和态度接触。调查结果显示,社交媒体技能通过亲态度暴露与社交媒体政治表达呈正相关,社交媒体技能与社交媒体政治表达呈直接负相关。讨论了社交媒体技能鸿沟的含义及其与社交媒体政治表达的关系。
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引用次数: 0
Reddit as a Source of COVID-19 Information: A Content Analysis of r/coronavirus During the Early Pandemic Reddit作为COVID-19信息来源:大流行早期r/冠状病毒的内容分析
Q4 Computer Science Pub Date : 2022-02-05 DOI: 10.51548/joctec-2022-002
Brent J. Hale, M. Alberta, Seung Woo Chae
Emerging research has begun examining the utility of social media platforms for information dissemination during the COVID-19 pandemic. Following this developing thread, this work examines discourse within r/coronavirus, a Reddit forum (i.e., subreddit) developed to curate COVID-19 information that burgeoned during the early months of the pandemic. Through a content analysis of 226 posts and 2260 corresponding comments generated between February and May, 2020, this study investigated early-pandemic communication patterns in this platform, including what information was deemed important and how users framed causes and solutions. Overall, findings indicate that users of r/coronavirus prioritized information about COVID-19 spread, public health information (e.g., mask mandates), political and economic implications of COVID-19, and the experiences of medical workers, while also shaming people who failed to follow public health guidelines. Discourse was collectivistically oriented and negatively valenced, and engagement with the subreddit decreased over time, suggesting COVID-19 fatigue among r/coronavirus users. Taken together, this study provides a window into early pandemic discourse, furthering our understanding of COVID-19 communication in early 2020 and revealing informational needs that could be targeted during future health emergencies. Furthermore, progressive fatigue in r/coronavirus (i.e., decreasing curational motivation) showcases a difficulty facing public health communicators during a pandemic’s emergence.
新出现的研究已经开始研究社交媒体平台在COVID-19大流行期间传播信息的效用。沿着这条发展的线索,这项工作研究了r/冠状病毒中的话语,r/冠状病毒是一个Reddit论坛(即Reddit子论坛),在大流行的最初几个月里,为了整理COVID-19信息而开发的。通过对2020年2月至5月期间产生的226篇帖子和2260条相应评论的内容分析,本研究调查了该平台上大流行早期的传播模式,包括哪些信息被认为是重要的,以及用户如何制定原因和解决方案。总体而言,调查结果表明,r/冠状病毒的用户优先考虑有关COVID-19传播的信息、公共卫生信息(例如戴口罩的规定)、COVID-19的政治和经济影响以及医务工作者的经验,同时也羞辱那些不遵守公共卫生准则的人。话语以集体主义为导向,受到负面评价,reddit子版块的参与度随着时间的推移而下降,这表明r/冠状病毒用户对COVID-19感到疲劳。综上所述,本研究为大流行早期话语提供了一个窗口,进一步加深了我们对2020年初COVID-19传播的理解,并揭示了在未来突发卫生事件中可能针对的信息需求。此外,r/冠状病毒的进行性疲劳(即治疗动机下降)表明,在大流行出现期间,公共卫生传播者面临困难。
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引用次数: 0
Gamifying Green Consumerism Websites: Can Gamification Mitigate Moral Licensing and Ideological Resistance to Green Behaviors? 游戏化绿色消费主义网站:游戏化能减轻道德许可和意识形态对绿色行为的抵制吗?
Q4 Computer Science Pub Date : 2022-02-05 DOI: 10.51548/joctec-2022-001
Lewen Wei, J. Myrick
Green consumerism is a growing trend that may contribute to a more sustainable society. However, lack of motivation to pursue a green lifestyle might subject consumers to well-documented moral licensing effects. Moreover, individuals with conservative ideological leanings are also less predisposed to take environmentally friendly actions, suggesting that sustainability communication strategies may need to differ by user ideology. The present study tested gamification techniques as a way to boost green motivations for consumers with varying political ideologies. Through an online experiment (N = 531), we reported null findings with respect to the effects of gamification techniques and political ideology on consumers’ behavioral intentions. Implications and directions for future work on sustainability communication are discussed.
绿色消费主义是一种日益增长的趋势,可能有助于建立一个更可持续的社会。然而,缺乏追求绿色生活方式的动力可能会使消费者受到有据可查的道德许可效应的影响。此外,具有保守意识形态倾向的个人也不太倾向于采取环境友好行动,这表明可持续性传播策略可能需要根据用户的意识形态而有所不同。目前的研究测试了游戏化技术作为促进不同政治意识形态的消费者的绿色动机的一种方式。通过一项在线实验(N = 531),我们报告了关于游戏化技术和政治意识形态对消费者行为意图的影响的无效发现。讨论了未来可持续传播工作的意义和方向。
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引用次数: 0
“This Is So Cool”: A Phenomenological Study on Virtual Reality Novelty “这太酷了”:虚拟现实新颖性的现象学研究
Q4 Computer Science Pub Date : 2022-02-05 DOI: 10.51548/10.51548/joctec-2022-004
Megan Cox, Casey Yetter
Virtual reality (VR) technology often provides immersive experiences through which consumers can better understand how a product works or why they should invest in a product (Dennis, 2010). Consumers who use VR are often able to simulate authentic experiences that feel “real-life” (Diemer et al., 2015). VR experience has also been associated with the characteristics of immersion, presence, interactivity (Mutterlein, 2018), and vividness (Van Kerrebroeck et al., 2017). Novelty and first-time VR use have been investigated to some extent in research on education (Adams et al., 2009; Merchant et al., 2014), but VR novelty has not been studied in-depth in other disciplines. This study takes a phenomenological approach, which uses in-depth descriptions of participants’ experiences of a real-life phenomenon to understand those experiences better and lay the foundation for future studies (Cresswell & Poth, 2018). The research uses a sample of 27 participants who experienced VR for the first time and answered open-ended questions concerning that experience, in addition to demographic questions. Participants were given 30 minutes each to select from various VR games and YouTube 360 videos in their first-ever encounter with using a VR headset. In-depth field notes were taken during the experience by the researchers, and post-experience interview prompts for participants were based on previous studies on VR immersion and flow theory. This exploratory, phenomenological study provides three themes that emerged from the data: disorientation and immersion, surprise, and a gradual release on reality. Possibilities for future research and the addition of novelty to the technology acceptance model are discussed.
虚拟现实(VR)技术通常提供身临其境的体验,通过这种体验,消费者可以更好地了解产品是如何工作的,或者他们为什么应该投资于产品(丹尼斯,2010)。使用VR的消费者通常能够模拟真实的体验,感觉“真实”(Diemer et al., 2015)。VR体验还与沉浸感、存在感、互动性(Mutterlein, 2018)和生动性(Van Kerrebroeck等人,2017)等特征有关。在教育研究中,对新奇感和首次使用VR进行了一定程度的调查(Adams et al., 2009;Merchant et al., 2014),但VR新颖性在其他学科中尚未得到深入研究。本研究采用现象学方法,对参与者对现实生活现象的体验进行深入描述,以更好地理解这些体验,为未来的研究奠定基础(Cresswell & Poth, 2018)。该研究使用了27名参与者的样本,他们首次体验虚拟现实,并回答了有关该体验的开放式问题,以及人口统计问题。参与者有30分钟的时间从各种VR游戏和YouTube 360视频中进行选择,这是他们第一次使用VR耳机。研究人员在体验过程中进行了深入的现场笔记,并根据先前关于VR沉浸和心流理论的研究为参与者提供了体验后访谈提示。这个探索性的现象学研究提供了从数据中出现的三个主题:迷失方向和沉浸,惊喜和对现实的逐渐释放。讨论了未来研究的可能性以及在技术接受模型中加入新颖性的可能性。
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引用次数: 0
Kakao Talk and Facebook [Book Review] Kakao Talk和Facebook[书评]
Q4 Computer Science Pub Date : 2022-02-05 DOI: 10.51548/joctec-2022-005
Sohana Nasrin
Kakao Talk and Facebook: Korean American Youth Constructing Hybrid Identities by Jiwoo Park and Dafna Lemish is a vital addition to the literature that deals with identity development in the digital age. We live in an epoch when the technological devices we use afford us immense opportunities to form identities in virtual spaces. However, the most critical aspect of Park and Lemish’s book is that it delineates the process of creating hybrid identities—that links identity formation in virtual spaces to that of offline—of an immigrant youth group, namely the Korean American community. Throughout the book, the authors tackle the nuances of adolescent immigrant identity creation, such as the struggle of ethnic identity development, the practice of photo-sharing through smartphones, and bilingualism. By looking at the subject matter through the lens of segmented assimilation theory, this book's findings help make sense of the process by which immigrant children in the United States use digital media technologies, often creatively, to preserve and redefine ethnic identities while dealing with the local assimilative forces. Both authors identify as immigrants, which helps them develop a solid immersive methodology as they interview the Korean American youth who participated in the study.
Jiwoo Park和Dafna Lemish的《Kakao Talk和Facebook:韩裔美国青年构建混合身份》是研究数字时代身份发展的文学作品的重要补充。我们生活在一个时代,我们使用的技术设备为我们提供了在虚拟空间中形成身份的巨大机会。然而,Park和Lemish的书中最关键的方面是它描绘了创建混合身份的过程——将虚拟空间中的身份形成与线下的移民青年群体,即韩裔美国人社区的身份形成联系起来。在整本书中,作者处理了青少年移民身份创造的细微差别,比如种族身份发展的斗争,通过智能手机分享照片的做法,以及双语。通过分段同化理论的视角,本书的发现有助于理解美国的移民儿童在处理当地同化力量的同时,经常创造性地使用数字媒体技术来保存和重新定义种族身份的过程。两位作者都认为自己是移民,这有助于他们在采访参与研究的韩裔美国青年时形成一种扎实的沉浸式方法。
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引用次数: 0
Securing BYOD environment from social and mobility related threats: the case of Nigerian banking sector 确保BYOD环境免受社会和流动性相关威胁:尼日利亚银行业的案例
Q4 Computer Science Pub Date : 2022-01-01 DOI: 10.1504/ijict.2022.10045832
L. Ofusori, P. Subramaniam
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引用次数: 0
A detection method of similar segments of music based on multi-feature fusion 一种基于多特征融合的音乐相似片段检测方法
Q4 Computer Science Pub Date : 2022-01-01 DOI: 10.1504/ijict.2022.10052078
Yu Zhou
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引用次数: 0
A data tamper-proof method of cloud computing platform based on blockchain 基于区块链的云计算平台数据防篡改方法
Q4 Computer Science Pub Date : 2022-01-01 DOI: 10.1504/ijict.2022.10052225
Hang Zhang, Jie Fu, Helin Zhang, Renjie Su, Dongying Gao
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引用次数: 0
期刊
International Journal of Information and Communication Technology
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