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The Jade Gateway to Exergaming: How Socio-Cultural Factors Shape Exergaming Among East Asian Older Adults

Proceedings of the ACM on Human-computer interaction 2024年第CHI PLAY期8卷 1-34页

作者： Hadi Mogavi, Reza Son, Juhyung Yang, Simin Wang, Derrick M. Choong, Lydia Alhilal, Ahmad Zhou, Peng Yuan Hui, Pan Nacke, Lennart E. HCI Games Group Stratford School of Interaction Design and Business University of Waterloo WaterlooON Canada Guangzhou China Hong Kong University of Science and Technology Hong Kong Aarhus University Aarhus Denmark The Hong Kong University of Science and Technology University of Helsinki Hong Kong The Department of Systems Design Engineering University of Waterloo Canada The Cheriton School of Computer Science University of Waterloo Canada

Exergaming, blending exercise and gaming, improves the physical and mental health of older adults. We currently do not fully know the factors that drive older adults to either engage in or abstain from exergaming. Large-scale studies investigating this are still scarce, particularly those studying East Asian older adults. To address this, we interviewed 64 older adults from China, Japan, and South Korea about their attitudes toward exergames. Most participants viewed exergames with a positive inquisitiveness. However, socio-cultural factors can obstruct this curiosity. Our study shows that perceptions of aging, lifestyle, the presence of support networks, and the cultural relevance of game mechanics are the crucial factors influencing their exergame engagement. Thus, we stress the value of socio-cultural sensitivity in game design and urge the HCI community to adopt more diverse design practices. We provide several design suggestions for creating more culturally approachable exergames. © 2024 Owner/Author.

关键词： Game design

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Inscribing or Circumscribing a Histogon to a Convex Polygon 42

Inscribing or Circumscribing a Histogon to a Convex Polygon

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42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical computer science, FSTTCS 2022

作者： Chung, Jaehoon Bae, Sang Won Shin, Chan-Su Yoon, Sang Duk Ahn, Hee-Kap Department of Computer Science and Engineering Pohang University of Science and Technology Korea Republic of Division of Computer Science and Engineering Kyonggi University Suwon Korea Republic of Division of Computer Engineering Hankuk University of Foreign Studies Seoul Korea Republic of Department of Service and Design Engineering SungShin Women's University Seoul Korea Republic of Graduate School of Artificial Intelligence Department of Computer Science and Engineering Pohang University of Science and Technology Korea Republic of

ISBN: (纸本)9783959772617

We consider two optimization problems of approximating a convex polygon, one by a largest inscribed histogon and the other by a smallest circumscribed histogon. An axis-aligned histogon is an axis-aligned rectilinear polygon such that every horizontal edge has an integer length. A histogon of orientation θ is a copy of an axis-aligned histogon rotated by θ in counterclockwise direction. The goal is to find a largest inscribed histogon and a smallest circumscribed histogon over all orientations in [0, π). Depending on whether the horizontal width of a histogon is predetermined or not, we consider several different versions of the problem and present exact algorithms. These optimization problems belong to shape analysis, classification, and simplification, and they have applications in various cost-optimization problems. © Jaehoon Chung, Sang Won Bae, Chan-Su Shin, Sang Duk Yoon, and Hee-Kap Ahn;licensed under Creative Commons License CC-BY 4.0.

关键词： Optimization

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Breast-NET: a lightweight DCNN model for breast cancer detection and grading using histological samples

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Neural Computing and Applications 2024年第32期36卷 20067-20087页

作者： Saha, Mousumi Chakraborty, Mainak Maiti, Suchismita Das, Deepanwita Department of Computer Science and Engineering National Institute of Technology West Bengal Durgapur713209 India School of Innovation Design and Engineering Division of Intelligent Future Technologies Malardalen University Västerås Sweden Department of Information Technology Narula Institute of Technology West Bengal Kolkata700109 India Department of Computer Science and Engineering Narula Institute of Technology West Bengal Kolkata700109 India

Breast cancer is a prevalent and highly lethal cancer affecting women globally. While non-invasive techniques like ultrasound and mammogram are used for diagnosis, histological examination after biopsy is considered the gold standard. However, manual examination of tissues for abnormality is labor-intensive, expensive, and requires prior domain knowledge. Early detection, awareness, and access to specialized medical infrastructure in resource-constrained and remote areas are significant challenges but crucial for saving lives. In recent years, deep learning-based approaches have shown promising results in breast cancer detection, facilitated by advancements in GPU memory, computation power, and the availability of digital data. Motivated by these observations, we propose the Breast-NET deep convolutional neural network model for breast cancer detection and grading using histological images. Our model’s performance is evaluated on the BreakHis dataset, and we demonstrate its generalization ability on the Invasive Ductal Carcinoma (IDC) grading and IDC datasets. Extensive experimental and statistical performance analysis, along with an ablation study, validates the efficiency of our proposed model. Furthermore, we demonstrate the effectiveness of transfer learning with seven pre-trained convolutional neural networks for breast cancer detection and grading. Experimental results show that our framework outperforms state-of-the-art approaches in terms of accuracy, space, and computational complexity for the BreakHis, IDC grading, and IDC datasets. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2024.

关键词： Grading

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Approximating Convex Polygons by Histogons* 34

Approximating Convex Polygons by Histogons*

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34th Canadian Conference on Computational Geometry, CCCG 2022

作者： Chung, Jaehoon Bae, Sang Won Shin, Chan-Su Yoon, Sang Duk Ahn, Hee-Kap Department of Computer Science and Engineering Pohang University of Science and Technology Pohang Korea Republic of Division of Computer Science and Engineering Kyonggi University Suwon Korea Republic of Division of Computer Engineering Hankuk University of Foreign Studies Seoul Korea Republic of Department of Service and Design Engineering SungShin Women’s University Seoul Korea Republic of Graduate School of Artificial Intelligence Department of Computer Science and Engineering Pohang University of Science and Technology Pohang Korea Republic of

We study the problem of finding the largest inscribed histogon and the smallest circumscribed histogon for a convex polygon. A histogon is an axis-aligned rectilinear polygon such that every horizontal edge has an integer length. Depending on whether the horizontal width of a histogon is predetermined or not, we consider four different versions of the problem and present exact algorithms. © 2022 Yeganeh Bahoo and Konstantinos Georgiou.

关键词： Geometry

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Empty squares in arbitrary orientation among points 36

Empty squares in arbitrary orientation among points

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36th International Symposium on Computational Geometry, SoCG 2020

作者： Bae, Sang Won Yoon, Sang Duk Division of Computer Science and Engineering Kyonggi University Suwon Korea Republic of Department of Service and Design Engineering Sungshin Women's University Seoul Korea Republic of

ISBN: (纸本)9783959771436

This paper studies empty squares in arbitrary orientation among a set P of n points in the plane. We prove that the number of empty squares with four contact pairs is between Ω(n) and O(n2), and that these bounds are tight, provided P is in a certain general position. A contact pair of a square is a pair of a point p ∈ P and a side ` of the square with p ∈ `. The upper bound O(n2) also applies to the number of empty squares with four contact points, while we construct a point set among which there is no square of four contact points. We then present an algorithm that maintains a combinatorial structure of the L∞ Voronoi diagram of P, while the axes of the plane continuously rotate by 90 degrees, and simultaneously reports all empty squares with four contact pairs among P in an output-sensitive way within O(slog n) time and O(n) space, where s denotes the number of reported squares. Several new algorithmic results are also obtained: a largest empty square among P and a square annulus of minimum width or minimum area that encloses P over all orientations can be computed in worst-case O(n2 log n) time. © Sang Won Bae and Sang Duk Yoon;licensed under Creative Commons License CC-BY 36th International Symposium on Computational Geometry (SoCG 2020).

关键词： Computational geometry

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Attitudes Toward Advanced Driver Assistance System-An International Study

Attitudes Toward Advanced Driver Assistance System-An Intern...

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第十七届国际工效学大会暨中国人类工效学会成立20周年庆祝大会

作者： Patrick Jordan Interaction Design Group Department of Computer Science and EngineeringChalmers University of Technology

Advanced Driver Assistance Systems(ADAS) are technologies that have the potential to improve road safety through the prevention of accidents and the mitigation of their ***,despite these potential benefits,a question remains about the extent to which they are likely to be accepted by *** questionnaire-based study asked drivers in China,Sweden and the UK about how useful they thought various ADAS would *** results indicated that while they were positive about systems that enhanced the level of information available to the driver,they were far less so about those that took automatic control of the ***'preferences for particular ADAS may not reflect their potential safety *** implies that market forces alone cannot be relied upon to maximise road safety and that there is also a role for legislation and voluntary agreements about ADAS within the automotive industry.

关键词： Attitudes Toward Advanced Driver Assistance System-An International Study

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Bioderived Hygromorphic Twisted Actuator for Untethered Sustainable Systems 12th

Bioderived Hygromorphic Twisted Actuator for Untethered Sust...

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Proceedings of the 12th International Conference on Biomimetic and Biohybrid Systems, Living Machines 2023

作者： Whatmore, Reece Keely, Emelia Lee, Zoe Minori, Adriane Yao, Lining Department of Materials Science and Engineering Carnegie Mellon University PittsburghPA15218 United States Industrial Design Department Rhode Island School of Design ProvidenceRI02903 United States Human-Computer Interaction Institute School of Computer Science Carnegie Mellon University PittsburghPA15218 United States

ISBN: (纸本)9783031388569

Environmentally friendly and hygromorphic actuators have gained increasing attention for energy harvesting, field robotics, seeding and biodegradable active structures and sensors. While recent works have used hygromorphic seeds as sources of bio-inspiration, it is challenging to engineer synthetic hygromorphic actuators with comparable stiffness, energy density, and reaction speed, and the processing of synthetic materials or need for external power sources inevitably increases fossil fuel consumption and waste production. In this paper, we harness an alternative bioderived design approach, utilizing the natural twisted body of the seed, Hesperostipa Spartea, itself as a sustainable and biodegradable hygromorphic twisting actuator that converts atmospheric water concentration into mechanical energy. Our self-powered twisted actuator is capable of providing twisting actuation with a load over 11,000 times its body mass. We further demonstrate the potential of modular biohybrid design to create untethered self-locking and crawling systems, powered solely by environmental stimuli. The ability to create biodegradable self-actuating systems with modular bioderived design presents opportunities to create biocompatible systems, improving sustainability in the field of soft robotics and beyond. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

关键词： Robotics

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Towards Automated Support for the Co-Evolution of Meta-Models and Grammars

arXiv

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arXiv 2023年

作者： Zhang, Weixing Department of Computer Science & Engineering Division of Interaction Design & Software Engineering Chalmers University of Technology University of Gothenburg Gothenburg Sweden

Blended modeling is an emerging paradigm involving seamless interaction between multiple notations for the same underlying modeling language. We focus on a model-driven engineering (MDE) approach based on meta-models to develop textual languages to improve the blended modeling capabilities of modeling tools. In this thesis, we propose an approach that can support the co-evolution of meta-models and grammars as language engineers develop textual languages in a meta-model-based MDE setting. Firstly, we comprehensively report on the challenges and limitations of modeling tools that support blended modeling, as well as opportunities to improve them. Second, we demonstrate how language engineers can extend Xtext’s generator capabilities according to their needs. Third, we propose a semi-automatic method to transform a language with a generated grammar into a Python-style language. Finally, we provide a solution (i.e., GrammarOptimizer) that can support rapid prototyping of languages in different styles and the co-evolution of meta-models and grammars of evolving languages. © 2023, CC BY-NC-ND.

关键词： Modeling languages

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Reducing Secondary-task Workload While Driving Through Interactive Interface

Reducing Secondary-task Workload While Driving Through Inter...

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第十七届国际工效学大会暨中国人类工效学会成立20周年庆祝大会

作者： Patrick Jordan Interaction Design Group Department of Computer Science and EngineeringChalmers University of Technology

The proliferation of new technology in cars brings many potential benefits in terms of safety,driving efficiency and in-car *** there are also potential problems associated with it,in particular that its usage may cause distraction from the driving *** problems may be compounded by drivers bringing other ?nomadic devices? into the vehicle to use while *** include products such as mobile phones,music players,GPS and personal *** combined effect of using these devices in addition to in-car technology creates a danger that the driver will become overloaded to the extent that it has a detrimental effect on driving performance and *** mitigate this potential problem,a number of manufacturers have developed ?interactive interfaces?.These are systems which allow drivers to operate nomadic devices by connecting them to a specially designed in-car interface and operating them(and the in-car technology) through *** paper reports a study investigating drivers? favourability towards ?interactive interfaces?-in-car interfaces through which a wide variety of different devices and in-car systems can be used Participants were asked for their perceptions about the effects of interactive interfaces on driving safety and their views about the comparative usability of different *** study was questionnaire-based and included 126 Swedish drivers and 170 Chinese *** results indicated the differences between Chinese driver and Swedish *** on the Chalmers Driving Segmentation,the majority of Swedish are ?diligent? drivers while over 30% Chinese driver were ?progressive? *** majority of Swedish drivers understand the negative impact of using mobile phones during driving,while the majority of the Chinese drivers didn?t see a problem with *** indicated that drivers were mostly positive about interactive interfaces and felt that they made device use easier when on the *** at the same time,a s

关键词： Reducing Secondary-task Workload While Driving Through Interactive Interface

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Towards Understanding and Applying Security Assurance Cases for Automotive Systems

arXiv

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arXiv 2024年

作者： Mohamad, Mazen Department of Computer Science & Engineering Division of Interaction Design and Software Engineering Chalmers University of Technology Gothenburg University Gothenburg Sweden

Security Assurance Cases (SAC) are structured bodies of arguments and evidence used to reason about security properties of a certain artefact. SAC are gaining focus in the automotive domain as the need for security assurance is growing due to software becoming a main part of vehicles. Market demands for new services and products in the domain require connectivity, and hence, raise security concerns. Regulators and standardisation bodies started recently to require a structured for security assurance of products in the automotive domain, and automotive companies started, hence, to study ways to create and maintain these cases, as well as adopting them in their current way of working. In order to facilitate the adoption of SAC in the automotive domain, we created CASCADE, an approach for creating SAC which have integrated quality assurance and are compliant with the requirements of ISO/SAE-21434, the upcoming cybersecurity standard for automotive systems. CASCADE was created by conducting design science research study in two iterative cycles. The design decisions of CASCADE are based on insights from a qualitative research study which includes a workshop, a survey, and one-to-one interviews, done in collaboration with our industrial partners about the needs and drivers of work in SAC in industry, and a systematic literature review in which we identified gaps between the industrial needs and the state of the art. The evaluation of CASCADE was done with help of security experts from a large automotive OEM. It showed that CASCADE is suitable for integration in industrial product development processes. Additionally, our results show that the elements of CASCADE align well with respect to the way of working at the company, and has the potential to scale to cover the requirements and needs of the company with its large organization and complex products Copyright © 2024, The Authors. All rights reserved.

关键词： Automotive industry

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