i-com最新文献_第4页

Constraint-based bare-hand immersive 3D modelling 基于约束的徒手沉浸式3D建模

i-com Pub Date : 2023-05-31 DOI: 10.1515/icom-2023-0013

Thomas Jung, J. H. Israel, Ruben Ahlhelm, Patrick Bauer

{"title":"Constraint-based bare-hand immersive 3D modelling","authors":"Thomas Jung, J. H. Israel, Ruben Ahlhelm, Patrick Bauer","doi":"10.1515/icom-2023-0013","DOIUrl":"https://doi.org/10.1515/icom-2023-0013","url":null,"abstract":"Abstract Three-dimensional user interfaces that are controlled by the user’s bare hands are mostly based on purely gesture-based interaction techniques. However, these interfaces are often slow and error prone. Especially in the field of immersive 3D modelling, gestures are unsuitable because they complicate and delay the modelling process. To address these problems, we present a new gesture-free 3D modelling technique called “3D touch-and-drag”, which allows users to select vertices by approaching them and to terminate operations by moving the 3D cursor (e.g. the forefinger) away from the constraint geometry (e.g. a straight line or a plane). Our proposed technique makes it possible to transfer the existing 3D modelling concepts (“3D widgets”) to virtual environments, as shown by an experimental 3D modelling tool. The gesture-free bare-hand interaction also improves the possibility of tactile feedback during 3D manipulation. We compared different modelling techniques for controlling the 3D widgets. We found that controller-based techniques are significantly faster than finger-tracking-based techniques. The 3D touch-and-drag technique is about as fast as gesture-based interactions. Mouse interaction in a two-dimensional GUI is only slightly faster than the 3D modelling techniques. Since our proposed technique has proven to be at least equivalent to gesture-based interaction techniques in terms of accuracy and efficiency, its further development using more accurate tracking techniques seems promising to exploit the advantages of hands-free and gesture-free interaction for immersive 3D modelling.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"11 1","pages":"125 - 141"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88821016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fostering skills with chatbot-based digital tutors – training programming skills in a field study 通过基于聊天机器人的数字导师培养技能——在实地研究中训练编程技能

i-com Pub Date : 2023-05-29 DOI: 10.1515/icom-2022-0044

Sebastian Hobert

{"title":"Fostering skills with chatbot-based digital tutors – training programming skills in a field study","authors":"Sebastian Hobert","doi":"10.1515/icom-2022-0044","DOIUrl":"https://doi.org/10.1515/icom-2022-0044","url":null,"abstract":"Abstract Digital skills, particularly programming, have become a vital prerequisite for succeeding in today’s work life. Developing those skills is, however, a challenging task, as it requires perseverance, effort, and practice. To teach coding, individualized tutoring adapted to the novice programmers’ state of knowledge has evolved as the most promising learning strategy. However, offering sufficient learning support while practicing coding tasks is a challenge due to resource constraints. Following a three-cycle design science research approach, we developed a chatbot-based digital tutor that can support novice programmers using individualized, automated conversations based on adaptive learning paths and in-depth code analyses. In this article, we present the final version of the digital tutor software and report the findings of introducing it in a field setting over two entire lecture periods. We show that digital tutors can effectively provide individualized guidance in moments of need and offer high learning satisfaction in a long-term learning setting. This article expands the state of research by presenting insights into how students interact with a digital tutor over an entire lecture period. This also provides insights on how to design digital tutors for developing skills.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"140 1","pages":"143 - 159"},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75658468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Frontmatter 头版头条

i-com Pub Date : 2023-04-01 DOI: 10.1515/icom-2023-frontmatter1

引用次数: 0

Digital natives aren't concerned much about privacy, or are they? 数字原生代不太关心隐私，是吗?

i-com Pub Date : 2023-04-01 DOI: 10.1515/icom-2022-0041

Edith Maier, Michael Doerk, Ulrich Reimer, Matthias Baldauf

{"title":"Digital natives aren't concerned much about privacy, or are they?","authors":"Edith Maier, Michael Doerk, Ulrich Reimer, Matthias Baldauf","doi":"10.1515/icom-2022-0041","DOIUrl":"https://doi.org/10.1515/icom-2022-0041","url":null,"abstract":"Voice assistants have become embedded in people's private spaces and domestic lives where they gather enormous amounts of personal information which is why they evoke serious privacy concerns. The paper reports the findings from a mixed-method study with 65 digital natives, their attitudes to privacy and actual and intended behaviour in privacy-sensitive situations and contexts. It also presents their recommendations to governments or organisations with regard to protecting their data. The results show that the majority are concerned about privacy but are willing to disclose personal data if the benefits outweigh the risks. The prevailing attitude is one characterised by uncertainty about what happens with their data, powerlessness about controlling their use, mistrust in big tech companies and uneasiness about the lack of transparency. Few take steps to self-manage their privacy, but rely on the government to take measures at the political and regulatory level. The respondents, however, show scant awareness of existing or planned legislation such as the GDPR and the Digital Services Act, respectively. A few participants are anxious to defend the analogue world and limit digitalization in general which in their opinion only opens the gate to surveillance and misuse.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"22 1","pages":"83-98"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10081922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9290090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Authentication methods for voice services on smart speakers – a multi-method study on perceived security and ease of use 智能扬声器上语音服务的认证方法——感知安全性和易用性的多方法研究

i-com Pub Date : 2023-03-29 DOI: 10.1515/icom-2022-0039

Andreas Renz, Thomas Neff, Matthias Baldauf, Edith Maier

{"title":"Authentication methods for voice services on smart speakers – a multi-method study on perceived security and ease of use","authors":"Andreas Renz, Thomas Neff, Matthias Baldauf, Edith Maier","doi":"10.1515/icom-2022-0039","DOIUrl":"https://doi.org/10.1515/icom-2022-0039","url":null,"abstract":"Abstract With the increasing proliferation of security-critical voice-based services such as voice banking, user authentication on smart speakers is becoming a vital requirement. Prior research on verifying the speaker’s identity has been taken a technical perspective predominantly, while respective user-centered research is scarce. To investigate authentication methods for smart speakers from a user’s perspective, we conducted a multi-method experiment. In a comprehensive online survey (n = 696) and a comparative lab study (n = 18) with an advanced functional prototype we studied 6 authentication methods (spoken PIN, biometrics, app with button/voice confirmation, card reader, sound authentication) regarding their perceived security and ease of use. While token-based authentication approaches (in particular an authenticator app on a smartphone) typically are perceived as more secure, they are found inferior when it comes to the ease of use. The currently most frequently used authentication method for smart speakers, the spoken PIN method, seems to represent a compromise between security and ease of use. The sophisticated sound authentication was appreciated for its ease of use, however, was rated worst regarding the perceived security.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"32 1","pages":"67 - 81"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75777053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PrintAssist—a conversational human-machine interface for 3D printers printassistant -用于3D打印机的会话人机界面

i-com Pub Date : 2023-03-16 DOI: 10.1515/icom-2022-0045

Florian Jasche, Philip Weber, Shi Liu, Thomas Ludwig

引用次数: 2

Special issue on “conversational agents” – Editorial 关于“会话代理”的特刊-社论

i-com Pub Date : 2023-03-16 DOI: 10.1515/icom-2023-0010

Thomas Ludwig, Philip Weber, A. Maedche, A. Riener

引用次数: 0

Addressing loneliness in the workplace through human-robot interaction 通过人机交互解决工作场所的孤独感

i-com Pub Date : 2023-03-14 DOI: 10.1515/icom-2023-0006

Melina Busch, Tim Lindermayer, Klara Schuster, Jonas Zhang, Pia Von Terzi

{"title":"Addressing loneliness in the workplace through human-robot interaction","authors":"Melina Busch, Tim Lindermayer, Klara Schuster, Jonas Zhang, Pia Von Terzi","doi":"10.1515/icom-2023-0006","DOIUrl":"https://doi.org/10.1515/icom-2023-0006","url":null,"abstract":"Abstract New work has been a topic for a few years now and the COVID-19 pandemic has brought this trend more into focus, i.e., working remotely became more popular. However, besides various advantages, there is the risk of loneliness in employees, which can negatively affect their work performance and mental health. Research in different domains suggests that social robots could reduce loneliness. Since we were interested in whether and how such findings are transferable to the office context, we developed and tested a concept for a social office robot. More specifically, we first conducted a cultural probes study with white-collar workers to gain information about workplace loneliness and its drivers. Second, we explored design possibilities for a social office robot in a focus group. Based on the results, we created a concrete concept, Luca, which we finally evaluated and optimized with the help of interviews with participants from various industries. The present work contributes to HRI research and practice, e.g., by providing design recommendations for the implementation of a social office robot. Future research could investigate the effectiveness of a social office robot intervention in field studies. Next to implications for research and practice, potential limitations are discussed.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"9 1","pages":"53 - 65"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84989691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fridolin: participatory design and evaluation of a nutrition chatbot for older adults Fridolin:老年人营养聊天机器人的参与式设计和评估

i-com Pub Date : 2023-03-14 DOI: 10.1515/icom-2022-0042

Philip Weber, Faisal Mahmood, Michael Ahmadi, Vanessa von Jan, Thomas Ludwig, R. Wieching

引用次数: 2

Say what you want, I'm not listening!: A conversational self-reflection robot that does not parse user speech. 随你怎么说，我没在听不解析用户语音的对话式自省机器人。

i-com Pub Date : 2023-03-10 eCollection Date: 2023-04-01 DOI: 10.1515/icom-2022-0047

Adriana Lorena González, Denise Y Geiskkovitch, James E Young

{"title":"Say what you want, I'm not listening!: A conversational self-reflection robot that does not parse user speech.","authors":"Adriana Lorena González, Denise Y Geiskkovitch, James E Young","doi":"10.1515/icom-2022-0047","DOIUrl":"10.1515/icom-2022-0047","url":null,"abstract":"We present a conversational social robot behaviour design that draws from psychotherapy research to support individual self-reflection and wellbeing, without requiring the robot to parse or otherwise understand what the user is saying. This simplicity focused approached enabled us to intersect the well-being aims with privacy and simplicity, while achieving high robustness. We implemented a fully autonomous and standalone (not network enabled) prototype and conducted a proof-of-concept study as an initial step to test the feasibility of our behaviour design: whether people would successfully engage with our simple behaviour and could interact meaningfully with it. We deployed our robot unsupervised for 48 h into the homes of 14 participants. All participants engaged with self-reflection with the robot without reporting any interaction challenges or technical issues. This supports the feasibility of our specific behaviour design, as well as the general viability of our non-parsing simplicity approach to conversation, which we believe to be an exciting avenue for further exploration. Our results thus pave the way for further exploring how conversational behaviour designs like ours may support people living with loneliness.","PeriodicalId":37105,"journal":{"name":"i-com","volume":"22 1","pages":"19-32"},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10081923/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9290091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0