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STRATEGIES TO FLIP A CLASSROOM: LESSONS LEARNT FROM A JOINT-UNIVERSITY PROJECT 翻转课堂的策略:从一个联合大学项目中学到的经验教训
Pub Date : 2019-01-30 DOI: 10.33965/ijwi_2019171104
P. Lam, Carmen Lau, Chi Him Chan
The flipped classroom approach is widely regarded to be able to enhance teaching and learning. Despite its many advantages, it is still in the early stage of implementation in Hong Kong. This may be due to the potential challenges such as learners’ limited participation and adaptation problems. The purpose of this article is to discuss the challenges based on Brame’s (2013) four key elements of the flipped classroom – exposure, incentive, assess, and activities. Particularly, we put emphasis on how teachers from Hong Kong higher education address the four aspects of challenges in their flipped classroom planning and design. Teachers of twenty-six courses in five universities in Hong Kong were invited to complete a teaching profile for their coming flipped courses which they were asked to elaborate their teaching goals and how they would execute the course. The teaching profiles revealed that the teachers devised a wealth of different strategies in implementing flipped classroom. We generalized their careful planning into eleven tips that can be seen as the collective wisdom of the teachers, as well as potential solutions to the flipped classroom challenges. This article summarizes the first phase of our study that eventually will examine the success factors of the flipped classroom approach in Hong Kong higher education.
翻转课堂被广泛认为能够提高教与学的效率。尽管有许多优点,但在香港仍处于实施的初级阶段。这可能是由于潜在的挑战,如学习者的有限参与和适应问题。本文的目的是讨论基于Brame(2013)翻转课堂的四个关键要素——曝光、激励、评估和活动所面临的挑战。我们特别强调了香港高等教育教师如何在翻转课堂的规划和设计中应对四个方面的挑战。香港五所大学二十六门课程的教师被邀请为他们即将到来的翻转课程完成一份教学简介,他们被要求阐述他们的教学目标以及他们将如何执行课程。教学概况显示,教师在实施翻转课堂时设计了丰富的不同策略。我们将他们的精心策划归纳为11条建议,这些建议可以被视为教师们的集体智慧,以及应对翻转课堂挑战的潜在解决方案。本文总结了我们研究的第一阶段,最终将探讨翻转课堂在香港高等教育中的成功因素。
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引用次数: 2
PRIVACY CONCERNS OF DIGITAL NATIVES: DIGITAL ABOVE ALL? 数字原生代的隐私问题:数字高于一切?
Pub Date : 2019-01-30 DOI: 10.33965/ijwi_2019171101
B. Engels
Data is the main resource of the digital economy. Accordingly, personal data constitutes the exchange value for the use of numerous online services such as social media. Many Internet users willingly disclose their data to these services. Oftentimes, there exists a discrepancy between individual privacy preferences and actual behavior. Against this background, this study examines the preferences of the so-called digital natives for privacy. 3,000 students aged between 14 and 21 in Germany were asked about their use of social media and their privacy preferences for these online services. In addition, their willingness to pay for privacy-friendly online services is analyzed. The study shows that while privacy is important to many digital natives, most are not willing to pay for it.
数据是数字经济的主要资源。因此,个人数据构成了使用社交媒体等众多在线服务的交换价值。许多互联网用户愿意向这些服务披露他们的数据。通常,个人隐私偏好与实际行为之间存在差异。在此背景下,本研究考察了所谓的数字原生代对隐私的偏好。3000名年龄在14岁至21岁之间的德国学生被问及他们使用社交媒体的情况,以及他们对这些在线服务的隐私偏好。此外,还分析了他们为隐私友好型在线服务付费的意愿。研究表明,虽然隐私对许多数字原生代来说很重要,但大多数人不愿意为此付费。
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引用次数: 0
COMPUTER SCIENCE AND CODING STUDY PATHS FOR WOMEN, MATURE WORKERS, AND MINORITIES: MOOC OR UNIVERSITY - WHO DOES IT BETTER? 女性、成熟员工和少数族裔的计算机科学和编程学习路径:mooc还是大学——谁更好?
Pub Date : 2019-01-30 DOI: 10.33965/ijwi_2019171108
M. Lane, Wendy Hui, Karen Murcia, P. Wongthongtham
This article is an exploratory analysis and comparison of the demographic distributions of data collected from the 2016 New Coder Survey, with that obtained from the Integrated Postsecondary Education Data System (IPEDS). In comparing the data sets, the findings suggest that overall females were more likely to engage in online self-paced coding education, particularly when they had no background or previous study in an IT discipline. This contrasted strongly with females having an existing IT qualification. When looking at ethnicity, the research identified that those students who identify as an ethnic minority were more likely to undertake formal tertiary education in IT, rather than engage in online coding study. The research also confirmed that the average age was higher, and diversity of age groups was larger for those undertaking online study, when compared with those undertaking formal tertiary study. The practical implications of this analysis to diversity in Information Technology disciplines such as computer science, and more broadly with STEM-related disciplines are discussed.
本文对2016年新编码员调查收集的数据与中学后教育综合数据系统(IPEDS)收集的数据的人口分布进行了探索性分析和比较。通过比较数据集,研究结果表明,总体而言,女性更有可能参与在线自学编程教育,特别是当她们没有IT学科背景或以前的学习时。这与拥有现有IT资格的女性形成强烈对比。在种族方面,研究发现,那些认为自己是少数民族的学生更有可能接受正规的信息技术高等教育,而不是参加在线编程学习。研究还证实,与接受正规高等教育的学生相比,在线学习的学生平均年龄更高,年龄组的多样性更大。本文讨论了这种分析对信息技术学科(如计算机科学)以及更广泛地与stem相关学科多样性的实际影响。
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引用次数: 0
REAL-TIME BROWSING ASSISTANT ON WEB 实时网页浏览助手
Pub Date : 2018-12-21 DOI: 10.33965/IJWI_2018161201
S. T. Zuhori, James Miller
Understanding user requirements based on their interactions with a website is becoming increasingly important. Hence, in this paper, a novel real-time navigation-support system is discussed. This system builds a personalized browsing assistant based on the current user request submitted to a web server. The process involves developing a behavior model using a Discrete Time Markov Chain (DTMCs) inference process. This is then used to monitor user activities, and thereafter suggest “where to go next”. Finally, it updates the model in real time using a Markovian Decision Process (MDP). To evaluate the system, we provide a user study, case studies and conduct experiments on two datasets to verify the effectiveness of our proposed system.
根据用户与网站的交互了解用户需求变得越来越重要。为此,本文讨论了一种新型的实时导航支持系统。本系统基于当前用户提交给web服务器的请求,构建了一个个性化的浏览助手。该过程涉及使用离散时间马尔可夫链(DTMCs)推理过程开发行为模型。然后用它来监视用户活动,然后建议“下一步去哪里”。最后,使用马尔可夫决策过程(MDP)实时更新模型。为了评估系统,我们提供了一个用户研究,案例研究,并在两个数据集上进行实验,以验证我们提出的系统的有效性。
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引用次数: 0
INVESTIGATION OF USER ADAPTABILITY AND SHARING PATTERNS ON MULTIPLE SOCIAL MEDIA PLATFORMS 多社交媒体平台用户适应性与分享模式研究
Pub Date : 2018-12-21 DOI: 10.33965/IJWI_2018161202
Ashraf Khalil, Aishah Khan, Tasbeeh F. Raza, S. Abdallah
Emergence of new features on social media platforms have become a daily occurrence. Stories, live videos, memories and various other emerging features are a crucial part of most of the popular social media platforms. Through this study, we conduct a qualitative assessment of user adaptation to these revolutionizing social media features. The aim of this study is to understand user preferences based on platforms, their adaptability and usage of these features. This study derives conclusions based on a semi-structured interview conducted on 18 users in their early twenties in the UAE. The study derives conclusions on changes in user behavior on Facebook, user strategies for managing different audiences and content across social media platforms, views on cross-linking and cross-sharing of social platforms and using social media as a common portal to keep track of daily happenings. The study finds that users treat social media platforms distinctly while tending to share different contents on each platform depending on the nature of the content and the audience of each platform.
社交媒体平台上出现的新功能已经成为每天都会发生的事情。故事、直播视频、记忆和其他各种新兴功能是大多数流行社交媒体平台的重要组成部分。通过这项研究,我们对用户对这些革命性社交媒体功能的适应进行了定性评估。本研究的目的是了解基于平台的用户偏好,他们的适应性和使用这些功能。本研究基于对阿联酋18名20岁出头的用户进行的半结构化访谈得出结论。该研究得出了以下结论:Facebook用户行为的变化,用户在社交媒体平台上管理不同受众和内容的策略,对社交平台的交叉链接和交叉分享的看法,以及使用社交媒体作为跟踪日常事件的共同门户。研究发现,用户对社交媒体平台的态度不同,根据内容的性质和受众的不同,用户在每个平台上分享的内容也不同。
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引用次数: 0
THE EFFECT OF ENGAGEMENT INTENSITY AND LEXICAL RICHNESS IN IDENTIFYING BOT ACCOUNTS ON TWITTER 参与强度和词汇丰富度对识别twitter上bot账户的影响
Pub Date : 2018-12-21 DOI: 10.33965/IJWI_2018161204
Isa Inuwa-Dutse, Bello Shehu Bello, Ioannis Korkontzelos, R. Heckel
The rise in the number of automated or bot accounts on Twitter engaging in manipulative behaviour is of great concern to studies using social media as a primary data source. Many strategies have been proposed and implemented, however, the sophistication and rate of deployment of bot accounts is increasing rapidly. This impedes and limits the capabilities of detecting bot strategies. Various features broadly related to account profiles, tweet content, network and temporal patterns have been utilised in detection systems. Tweet content has been proven instrumental in this process, but limited to the terms and entities occurring. Given a set of tweets with no obvious pattern, can we distinguish contents produced by social bots from those of humans? What constitutes engagement on Twitter and how can we measure the intensity of engagement among Twitter users? Can we distinguish between bot and human accounts based on engagement intensity? These are important questions whose answer will improve how detection systems operate to combat malicious activities by effectively distinguishing between human and social bot accounts on Twitter. This study attempts to answer these questions by analysing the engagement intensity and lexical richness of tweets produced by human and social bot accounts using large, diverse datasets. Our results show a clear margin between the two classes in terms of engagement intensity and lexical richness. We found that it is extremely rare for a social bot to engage meaningfully with other users and that lexical features significantly improve the performance of classifying both account types. These are important dimensions to explore toward improving the effectiveness of detection systems in combating the menace of social bot accounts on Twitter.
使用社交媒体作为主要数据来源的研究非常关注Twitter上从事操纵行为的自动账户或机器人账户数量的增加。已经提出并实施了许多策略,然而,机器人帐户的复杂性和部署速度正在迅速增加。这阻碍和限制了检测机器人策略的能力。在检测系统中使用了与帐户配置文件、tweet内容、网络和时间模式广泛相关的各种特征。Tweet内容在这一过程中被证明是有用的,但仅限于出现的术语和实体。给定一组没有明显模式的推文,我们能区分社交机器人生成的内容和人类生成的内容吗?什么构成了Twitter用户粘性?我们如何衡量Twitter用户粘性的强度?我们能否根据用户参与度区分机器人账户和真人账户?这些都是重要的问题,它们的答案将改善检测系统的运作方式,通过有效区分Twitter上的人类账户和社交机器人账户来打击恶意活动。本研究试图通过分析人类和社交机器人账户使用大型、多样化的数据集生成的推文的参与强度和词汇丰富度来回答这些问题。我们的研究结果显示,在参与强度和词汇丰富度方面,两个班级之间存在明显的差距。我们发现,社交机器人很少与其他用户进行有意义的互动,词汇功能显著提高了对两种账户类型进行分类的性能。这些都是探索提高检测系统在打击Twitter社交机器人账户威胁方面的有效性的重要方面。
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引用次数: 5
A MODEL FOR BLOCKCHAIN-BASED DISTRIBUTED ELECTRONIC HEALTH RECORDS 基于区块链的分布式电子健康记录模型
Pub Date : 2018-12-21 DOI: 10.33965/IJWI_2018161205
Tiago Quaini, Alex Roehrs, C. Costa, R. R. Righi
Electronic health records (EHR) are usually maintained in a centralized way by health organizations, leaving aside an integration between different health organizations to view the complete health history of a given patient. This lack of EHR integration prevents patients and physicians to have a unified view of medical records, which are often stored in different health organizations. Recent studies have proposed using Blockchain technology in distributed architectures due to its security and integration properties. In this context, this article proposes an application architecture using Blockchain technology for distributed EHR integration, which is called UniRec (Unified Medical Records). In the proposed model we seek to understand its effectivity, performance and applicability, using a case study methodology. We developed a prototype, which is evaluated using a test scenario. The prototype proved to be effective for distributed EHR integration, allowing one healthcare institution to view an EHR previously added by different providers, after being granted permission. During the test scenario execution, we obtained an average response time of 2.77 seconds, 961.6 MiB of memory consumption, 21.5% CPU usage and a total disk usage of 34.6 MB. The results reinforce the potential and feasibility of employing Blockchain for managing and storing medical data.
电子健康记录(EHR)通常由卫生组织以集中的方式维护,不考虑不同卫生组织之间的集成,以查看给定患者的完整健康史。由于缺乏EHR集成,患者和医生无法统一查看通常存储在不同卫生组织中的医疗记录。由于其安全性和集成特性,最近的研究提出在分布式架构中使用区块链技术。在此背景下,本文提出了一种使用区块链技术进行分布式EHR集成的应用架构,称为UniRec (Unified Medical Records)。在提出的模型中,我们试图了解其有效性,性能和适用性,使用案例研究方法。我们开发了一个原型,使用测试场景对其进行评估。该原型被证明对于分布式EHR集成是有效的,允许一个医疗保健机构在获得许可后查看以前由不同提供者添加的EHR。在测试场景执行过程中,我们获得的平均响应时间为2.77秒,内存消耗为961.6 MiB, CPU使用率为21.5%,磁盘总使用率为34.6 MB。结果增强了使用区块链管理和存储医疗数据的潜力和可行性。
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引用次数: 5
MODELLING E-HEALTH BUSINESS MODEL CANVAS BASED ON FINANCIAL FLOWS AND SHARED VALUE 基于资金流和共享价值对电子医疗业务模型画布进行建模
Pub Date : 2018-12-21 DOI: 10.33965/IJWI_2018161206
Angela Martin, Corentin Canu, Camille Jean, Gabrièle Breda
The main focus of this study is to provide a new framework for business model design by using complex system modelling. The tool offers both entrepreneurs and investors a comprehensive view of value streams by comparing different business models based on the economic shared value creation during the go to market process.
本研究的主要重点是利用复杂系统建模为商业模式设计提供一个新的框架。该工具通过比较不同的基于经济共享价值创造的商业模式,为企业家和投资者提供了一个全面的价值流视图。
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引用次数: 0
EPHEMERAL NARRATIVE SYSTEMS' SOCIABILITY MEDIATED BY USER EXPERIENCE: A CASE STUDY OF INSTAGRAM STORIES 用户体验介导的短暂叙事系统的社交性:instagram故事的案例研究
Pub Date : 2018-12-21 DOI: 10.33965/ijwi_2018161203
T. A. D. S. Silva, G. A. R. Barbosa, I. S. Silva, Flávio R. S. Coutinho
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引用次数: 3
AGILE USER-CENTERED DESIGN OF AN IOT-ENABLED GAMIFIED INTERVENTION FOR ENERGY CONSERVATION AT THE WORKPLACE 敏捷的以用户为中心的设计,支持物联网的游戏化干预,用于工作场所的节能
Pub Date : 2018-09-12 DOI: 10.33965/IJWI_2018161101
D. Kotsopoulos, C. Bardaki, Thanasis G. Papaioannou, Stavros Lounis, K. Pramatari
Energy conservation in workplace environments is recognized as both important and impactful towards reducing worldwide CO2 emissions and protecting the environment. However, the focus of existing research has not primarily been on the employees’ energy consumption behavior, albeit its potential impact on workplace energy efficiency. Aiming to affect employee energy behavior change towards more conscious consumption patterns, we have adopted gamification, a contemporary instrument that, when carefully utilized can lead to employee behavior change. Furthermore, we have followed an Iterative & Incremental Agile User Centered Design (UCD) approach towards designing a gamified IoT-enabled mobile app that provides energy consumption-related feedback to employees at their workplace. We present the characteristics of the designed app, as well as explain the rationale behind their choice. Usability results derived from employees in 3 workplaces at 3 different EU countries indicate that through our approach we designed a prototype gamified solution very well perceived and engaging to our target audience, scoring high in both usability, as well as user experience aspects. We further enhanced the app with additional functionality, according to the test users’ feedback, towards producing the first integrated version. Initial results from testing this revised first integrated version of the app, revealed even more enhanced usability and user experience results, compared to the previous version. Overall, our derived evidence suggests that, by following an Iterative & Incremental Agile UCD approach within our field of application, we have derived a gamified app for energy-saving at the workplace that is conceived of as highly usable and provides for a positive user experience.
在工作环境中节约能源被认为对减少全球二氧化碳排放和保护环境既重要又有影响。然而,现有研究的重点并不主要集中在员工的能源消耗行为上,尽管它对工作场所能源效率有潜在的影响。为了使员工的能源行为改变为更有意识的消费模式,我们采用了游戏化,这是一种现代工具,如果仔细使用,可以导致员工行为改变。此外,我们遵循迭代和增量敏捷以用户为中心的设计(UCD)方法来设计一个游戏化的物联网移动应用程序,该应用程序可以在员工的工作场所提供与能源消耗相关的反馈。我们将介绍所设计应用程序的特点,并解释其选择背后的基本原理。来自3个不同欧盟国家3个工作场所的员工的可用性结果表明,通过我们的方法,我们设计了一个原型游戏化解决方案,非常容易被我们的目标受众所接受和吸引,在可用性和用户体验方面都获得了高分。根据测试用户的反馈,我们进一步增强了应用程序的附加功能,以制作第一个集成版本。与之前的版本相比,测试这个修改后的应用程序的第一个集成版本的初步结果显示,易用性和用户体验结果得到了进一步增强。总的来说,我们得到的证据表明,通过在我们的应用领域遵循迭代和增量敏捷UCD方法,我们已经得到了一个游戏化的应用程序,用于工作场所的节能,它被认为是高度可用的,并提供了积极的用户体验。
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引用次数: 7
期刊
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