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Towards Contextual Glyph Design: Visualizing Hearing Screenings 27

Towards Contextual Glyph Design: Visualizing Hearing Screeni...

27th international conference on Information Visualisation (IV) / 19th international conference computer graphics, imaging and visualization (CGiV)

作者： Ramos, Barbara Nascimento Macas, Catarina Lourenco, Nuno Polisciuc, Evgheni Univ Coimbra Dept Informat Engn CISUC Coimbra Portugal

ISBN: (纸本)9798350341614

Data is everywhere, our society shapes itself through it and, with the years passing by, it is becoming greater in dimension. A lot of this data now available is multivariate in nature. The bigger the volume and complexity are, the harder tasks to detect, classify, and measure characteristics and relations within data. Glyph-based visualization is one of the possible techniques commonly adopted in data science to address the representation of multivariate data. Multiple varieties of glyph design have been developed and studied over the past decades. However, little research was done to compare the effectiveness of glyphs designs developed for a specific context of the application. This paper aims to study data glyphs and their applications. More specifically, three visual explorations are produced as glyph design alternatives to represent a dataset related to audiological tests carried out in the population of Portugal. These glyphs were evaluated through controlled semi-structured experiments with users, and a crowdsourced experiment, and then an analysis of the performance result of each of the glyphs is presented, evaluating them in terms of learning and memorization. The results show how the use of metaphors and semantic relations to represent the attributes helps in understanding the glyph and its memorization. Additionally, we identified that the redundancy in encoding data might be beneficial.

关键词： Data glyphs design Glyph-based visualization Multivariate data visualization

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Non-destructive Prediction of Loquat Sugar Content and Hardness Using Hyperspectral imaging Combined with Weighted Band Selection 17

Non-destructive Prediction of Loquat Sugar Content and Hardn...

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17th international conference on Advanced computer Theory and Engineering

作者： Zhang, Longfeng Chen, Chong Anhui Jianzhu Univ Sch Elect & Informat Engn Hefei Peoples R China

ISBN: (纸本)9798331539894;9798331539887

Sugar content and firmness are important indicators for measuring the quality of loquats. In order to perform non-destructive testing on the sugar content and hardness of loquat, the hyperspectral image information of 262 loquats was obtained by using a visible light/near infrared (400-1167 nm) hyperspectral imaging system. The original spectra were preprocessed using moving average smoothing (MA) and convolution smoothing (SG). On this basis, the weighted band selection algorithm (WBS), successive projection algorithm (SPA), principal component analysis (PCA) and SPA-WBS were used to reduce the dimension of hyperspectral data and extract characteristic variables. Random forest (RF) and partial least squares regression (PLSR) prediction models were established to detect the sugar content and hardness of loquat, and the optimal prediction model was established. Based on the optimal prediction model, the sugar content and firmness of loquat fruits were fitted, enabling the visualization of the internal distribution of sugar content and firmness within the fruits. The results indicate that: The RF model based on SPA-WBS has the best prediction effect on sugar content, with correlation coefficients of the training set and test set being 0.9269 and 0.9162, and root mean square errors being 0.4366 and 0.4336, respectively;The RF model based on the full spectrum band achieves the best hardness prediction effect, and the correlation coefficient of the test set can reach *** methods proposed in this work enable non-destructive prediction and visualization research of sugar content and hardness in loquat.

关键词： loquats sugar content and firmness hyperspectral image non-destructive testing visualization

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Analysis of tools to support the Design Review process in Virtual Reality 8

Analysis of tools to support the Design Review process in Vi...

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8th international conference on computer graphics and Virtuality, ICCGV 2025

作者： Beisiegel, Thomas Grimm, Paul Hergenröther, Elke Thesen, Philipp Darmstadt University of Applied Sciences Schöfferstraße 3 Darmstadt Germany

ISBN: (纸本)9781510689213

This paper examines currently available programs with regard to their suitability for use in Design Review. Required functions were derived and classified based on scientific studies. This classification served as a basis for evaluating the respective tools. The aim of the study is to identify functions that are not yet adequately mapped or not mapped at all. The results showed that there is a potential need to support the analysis of the quality and condition of surfaces as well as the analysis of the structure (e.g. exploded or cross-sectional view). Finally, a tool and a prototype are presented with the aim of offering an initial approach to closing this gap. Our prototype is intended to give designers an access to the Design Review without technical knowledge of Virtual Reality. © 2025 SPIE.

关键词： Virtual reality Design Prototyping computer aided design 3D modeling Integration 3D tracking Sensors Video visualization

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Exploring the Effectiveness of Electrotactile Feedback for Data visualization for Blind and Visually Impaired Users 18th

Exploring the Effectiveness of Electrotactile Feedback for D...

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18th international conference on Universal Access in Human-computer Interaction (UAHCI) Held as Part of the 26th international conference on Human-computer Interaction (HCII)

作者： Milallos, Rezylle Oh, Tae Peiris, Roshan L. Rochester Inst Technol Sch Informat Rochester NY 14623 USA

ISBN: (纸本)9783031608834;9783031608841

Blind and visually impaired individuals use tactile graphics to interpret any type of image, figure, or graph. However, the production of these materials is resource exhaustive-taking a lot of time, quality assurance, and money. This research project uses recent advancements in electrotactile feedback to provide an accurate and timely approach to data visualizations of users who are blind or visually impaired. For this, we developed Electromouse, a mouse-based prototype where users can navigate the screen and feel an electrotactile sensation every time the cursor hits a significant line on the graphic presented on the screen. We performed an early exploration study with five blind adults to evaluate the effectiveness and safety of the prototype. Overall, participants were excited for this new method, but had suggestions for improvement related to the form factor, additional graphical information, and multimodal notification.

关键词： Accessibility Assistive Technologies Electrotactile Feedback Haptics blind low vision

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Data visualization Accessibility for Blind and Low Vision Audiences 17th

Data Visualization Accessibility for Blind and Low Vision Au...

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17th international conference on Universal Access in Human-computer Interaction (UAHCI) part of the 25th international conference on Human-computer Interaction (HCI)

作者： Keilers, Chloe Tigwell, Garreth W. Peiris, Roshan L. Rochester Inst Technol Sch Informat Rochester NY 14623 USA

ISBN: (纸本)9783031356803;9783031356810

While data visualizations have the potential to convey vast quantities of information, they are not always accessible to audiences with vision impairments. We prepared and distributed an online survey to blind and low vision adults to investigate the accessibility of data visualizations across the following five mediums-computers, phones, tablets, paper, TVs. After analyzing 45 survey responses, we identified that the inaccessibility is pervasive and that people want to interpret data independently. At present, data visualizations are largely inaccessible to blind and low vision users;however, it is possible to improve accessibility with intentional design.

关键词： BLV blind low vision graphics visualization accessibility

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Wearable Augmented Reality: Research Trends and Future Directions from Three Major Venues

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IEEE TRANSACTIONS ON visualization AND computer graphics 2023年第11期29卷 4782-4793页

作者： Minh Tran, Tram Thi Brown, Shane Weidlich, Oliver Billinghurst, Mark Parker, Callum Univ Sydney Camperdown NSW Australia Contxtual Sydney Australia Univ South Australia Adelaide Australia

Wearable Augmented Reality (AR) has attracted considerable attention in recent years, as evidenced by the growing number of research publications and industry investments. With swift advancements and a multitude of interdisciplinary research areas within wearable AR, a comprehensive review is crucial for integrating the current state of the field. In this paper, we present a review of 389 research papers on wearable AR, published between 2018 and 2022 in three major venues: ISMAR, TVCG, and CHI. Drawing inspiration from previous works by Zhou et al. and Kim et al., which summarized AR research at ISMAR over the past two decades (1998-2017), we categorize the papers into different topics and identify prevailing trends. One notable finding is that wearable AR research is increasingly geared towards enabling broader consumer adoption. From our analysis, we highlight key observations related to potential future research areas essential for capitalizing on this trend and achieving widespread adoption. These include addressing challenges in Display, Tracking, Interaction, and Applications, and exploring emerging frontiers in Ethics, Accessibility, Avatar and Embodiment, and Intelligent Virtual Agents.

关键词： Market research Headphones Ethics Augmented reality Rendering (computer graphics) Calibration Biomedical monitoring mixed reality head-mounted displays survey trends

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ASSESSING THE USABILITY OF A MOBILE APP IN A REMOTE ENVIRONMENT: COMBINING THINK ALOUD WITH A USER EXPERIENCE SCALE QUESTIONNAIRE 17

ASSESSING THE USABILITY OF A MOBILE APP IN A REMOTE ENVIRONM...

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17th international conference on Interfaces and Human computer Interaction 2023, IHCI 2023, the 17th international conference on computer graphics, visualization, computer Vision and Image Processing 2023, CGVCVIP 2023 and 16th international conference on Game and Entertainment Technologies 2023, GET 2023

作者： Souto, Virginia Tiradentes Cabral, Luiza Reolon Design Department University of Brasilia Brazil

ISBN: (纸本)9789898704498

The aim of this study is to investigate an approach for evaluating the user experience of mobile applications in remote environments. The proposed approach includes both thinking aloud and a user experience questionnaire with three types of questions: personalized, scaled, and open-ended. The novelty of this study lies in the proposal of a new form with questions that not only focus on usability but also include other aspects of user experience, such as user characteristics, product features, and previous user experiences. The proposed App User eXperience Scale (AUXS) is based on SUS, but has many differences, including questions about content, visual appeal, content, user expectations, and an NPS question. The proposed approach is tested using a mobile application to promote artists and artisans. The results show that this approach can be useful not only for researchers, but also for designers to validate their creations and for companies offering mobile applications to test the usability of their applications. © 2023 Proceedings of the international conferences on Interfaces and Human computer Interaction 2023, IHCI 2023;computer graphics, visualization, computer Vision and Image Processing 2023, CGVCVIP 2023;and Game and Entertainment Technologies 2023, GET 2023. All rights reserved.

关键词： computer games

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BONE POROSITY AND THICKNESS EVALUATION BY ULTRASONIC SIGNALS USING PATTERN RECOGNITION 18

BONE POROSITY AND THICKNESS EVALUATION BY ULTRASONIC SIGNALS...

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18th international conference on Interfaces and Human computer Interaction 2024, IHCI 2024, the 17th international conference on Game and Entertainment Technologies 2024, GET 2024 and the 18th international conference on computer graphics, visualization, computer Vision and Image Processing 2024, CGVCVIP 2024, Part of the 18th Multi conference on computer Science and Information Systems 2024, MCCSIS 2024

作者： Mamontovs, Maksims Sisojevs, Aleksandrs Tatarinov, Alexey Riga Technical University 6A Ķīpsalas Str. Riga Latvia Institute of Electronics and Computer Science 14 Dzerbenes Str. Riga Latvia

ISBN: (纸本)9789898704580

The fragility of long bones in osteoporosis is linked to a decrease in cortical layer thickness (CTh) and the development of internal porosity (P) within the cortex. This study is dedicated to investigate whether it is possible and how accurately P and CTh can be determined using a pattern recognition methods, utilizing discrete Fourier transform (DFT) analysis of ultrasonic signals transmitted through a soft tissue layer. As input data, ultrasound scans of phantom of cortical bone with different grades of CTh and P were used. Each of the phantom scans was chosen in turn as a test object, while other specimens composed the training set. For analysis, three different existing approaches were applied firstly and the later one was developed by improving the existing ones. The analysis was carried out in three categories: P and CTh ratio, P only and CTh only. Based on the results of each analysis, a method was obtained that predicts P and CTh better than other applied ones. A comparison of the methods for P and CTh determining and choosing the most effective ones are shown. © 2024 Interfaces and Human computer Interaction. All Rights Reserved.

关键词： Discrete Fourier transforms

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AN ANALYSIS OF INTERACTION BEHAVIORS IN PERSONALIZED LEARNING 18

AN ANALYSIS OF INTERACTION BEHAVIORS IN PERSONALIZED LEARNIN...

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作者： Cabı, Emine Türkoğlu, Hacer Baskent University Faculty of Education Department of Computer and Instructional Technology Education Ankara Turkey

ISBN: (纸本)9789898704580

The purpose of this study is to examine the relationship between students' participation behaviors in online learning analytics (LA) and their academic performance and self-regulated learning (SRL) in learning analytics-based feedback systems. In the study, 73 university students participated. Moodle was used as a learning management system (LMS) to share digital content, communicate with students, and make evaluations. In the flipped learning (FL) environment, LA including different types of activities was made available to students for four weeks. During this process, students were supported with feedback within the framework of instructional design based on learning analytics. Interaction data, achievement test, and SRL Scale were used as data collection tools. The data obtained in the study were examined using K-Means Clustering Analysis and Mann-Whitney U-test. Cluster analysis was performed to classify students with similar behavioral patterns into a homogeneous group. As a result of the analysis, two clusters were obtained: those with high engagement and those with low engagement. Students' interaction behaviors were determined and the relationship between different interaction behaviors and students' academic success and self-regulation skills was examined. As a result, students with high interaction/engagement spend more time in activities than students with low engagement. Additionally, the academic success and self-regulation score averages (except for help-seeking) of students with high engagement were found to be higher than those with low engagement. When academic achievement and self-regulation skills were compared according to clusters, no statistically significant difference was observed. © 2024 Interfaces and Human computer Interaction. All Rights Reserved.

关键词： Federated learning

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Analysis Of The Procedural Generation Algorithm Of Edgar Pro Tool With A Faster Variety Creation In Dungeon Layout 17

Analysis Of The Procedural Generation Algorithm Of Edgar Pro...

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作者： De Araujo, Cristina Souza Salgado, Ana Carolina Brandão Da Silva Lima, Gabriel Barroso Da Silva, Jucimar Maia Pinheiro, Clairon Lima Rodriguez, Luis Cuevas CESAR SCHOOL Recife Brazil Escola Superior de Tecnologia - EST Universidade do Estado do Amazonas - UEA Manaus Brazil

ISBN: (纸本)9789898704498

This article describes the process of analysis the procedural generation package Edgar for Unity game engine. This package focuses on generating dungeon layouts for top-down 2D games. The generation works with the developer creating room models and a non-directional graph for the dungeon, with the package generating a random layout from these inputs. The purpose of this article is to expand the variety of layouts that the package generates, creating a greater variety of results for the player without losing the randomness factor that comes from procedural generation. © 2023 Proceedings of the international conferences on Interfaces and Human computer Interaction 2023, IHCI 2023;computer graphics, visualization, computer Vision and Image Processing 2023, CGVCVIP 2023;and Game and Entertainment Technologies 2023, GET 2023. All rights reserved.

关键词： computer games

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