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Utilizing Learning-Analytics-Based Activities as a Bridge to Enhance Elementary Students’ Mathematical Learning 以学习分析活动为桥梁促进小学生数学学习
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-16 DOI: 10.1109/TLT.2025.3570979
Sergio Tirado-Olivares;Rocío Mínguez-Pardo;Javier del Olmo-Muñoz;José A. González-Calero
Decimal misconceptions are a persistent challenge in mathematics education, often hindering students’ long-term understanding. This study examines how learning analytics (LA) can be effectively integrated into instructional sequences to address these misconceptions, providing teachers with real-time insights for formative assessment. Despite the growing presence of technology in education, LA remains underutilized at the primary level. The study involved 235 fifth- and sixth-grade students completing decimal number tasks through a Moodle-based platform. Students were assigned to one of three conditions: tasks based on correct examples (CE tasks, n = 79), erroneous examples (n = 80), or no tasks (control group, n = 76). Results indicate that example-based tasks significantly improve learning outcomes, particularly for students with lower prior knowledge, who benefited more from CE tasks. LA data effectively predicted student performance, demonstrating its potential as a formative assessment tool. Importantly, results suggest that the observed effects were consistent across male and female students. These findings highlight the need to integrate LA into daily teaching practice, enabling educators to identify misconceptions and tailor instruction accordingly. Given the positive student reception and the efficiency of LA-driven interventions, this study underscores its relevance for policy decisions aimed at enhancing mathematics education in primary schools.
十进制误解是数学教育中一个持续存在的挑战,经常阻碍学生的长期理解。本研究探讨了如何将学习分析(LA)有效地整合到教学序列中,以解决这些误解,为教师提供形成性评估的实时见解。尽管技术在教育中的应用越来越多,但在小学阶段,LA仍然没有得到充分利用。这项研究涉及235名五年级和六年级的学生,他们通过基于moodle的平台完成十进制数字任务。学生们被分配到三种情况中的一种:基于正确例子的任务(CE任务,n = 79),错误例子(n = 80),或者没有任务(对照组,n = 76)。研究结果表明,基于实例的任务显著提高了学习效果,特别是对于那些先验知识较低的学生,他们从CE任务中获益更多。洛杉矶数据有效地预测了学生的表现,展示了其作为形成性评估工具的潜力。重要的是,结果表明,观察到的效果在男女学生中是一致的。这些发现强调了将LA融入日常教学实践的必要性,使教育者能够识别误解并相应地调整教学。考虑到积极的学生接受和洛杉矶驱动的干预措施的效率,本研究强调了其与旨在加强小学数学教育的政策决策的相关性。
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引用次数: 0
Motivating Students With Different Needs to Learn Chinese in a Mixed-Background Classroom by Robot-Assisted Learning 机器人辅助学习在混合背景课堂中激励不同需求学生学习汉语
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-14 DOI: 10.1109/TLT.2025.3551256
Ka-Yan Fung;Kwong-Chiu Fung;Tze Leung Rick Lui;Kuen-Fung Sin;Lik-Hang Lee;Huamin Qu;Shenghui Song
Mastering the visually complex characters of the Chinese language poses significant challenges for students. The situation is even worse in Hong Kong, where students with different backgrounds, including students with/without dyslexia and non-Chinese speaking (NCS) students, are placed in the same class. Interactive design has been proven effective in enhancing students' learning performance and engagement. However, developing a learning tool for students with diverse backgrounds is challenging. This study proposes a robot-assisted Chinese learning system (RACLS) for those with diverse backgrounds and investigates its impact on learning motivation by a comparison study. In particular, 39 students participate in a five-day robot-led training program, while another 39 students received traditional teacher-led training. The comparison results show that RACLS can enhance the emotional engagement of students with dyslexia and strengthen the behavioral engagement of students without dyslexia. Interestingly, the learning motivation of NCS students in the experimental and control groups is enhanced similarly.
掌握视觉复杂的汉字对学生来说是一项巨大的挑战。在香港,不同背景的学生,包括有/没有读写困难的学生和非华语学生,被安排在同一个班级,情况更为严重。事实证明,互动设计能有效提高学生的学习成绩和参与度。然而,为背景各异的学生开发学习工具却极具挑战性。本研究针对不同背景的学生提出了机器人辅助中文学习系统(RACLS),并通过对比研究探讨了该系统对学习动机的影响。具体而言,39 名学生参加了为期五天的机器人指导培训项目,而另外 39 名学生则接受了传统的教师指导培训。对比结果表明,RACLS 可以提高有阅读障碍学生的情感参与度,加强无阅读障碍学生的行为参与度。有趣的是,实验组和对照组非华语学生的学习动机也得到了类似的提升。
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引用次数: 0
Exploring the Impact of the Metaverse on Promoting Students’ Access to Quality Education: A Meta-Analysis 探讨元环境对促进学生接受素质教育的影响:一项元分析
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-11 DOI: 10.1109/TLT.2025.3550714
Yuanbin Diao;Yu-Sheng Su
With technological advancements, the Metaverse is being used to enhance learning effects and learning experience to ensure quality education. However, current empirical studies have produced varying results. Therefore, a meta-analysis was executed, leveraging the capabilities of Version 3 of the Comprehensive Meta-Analysis software to effectively synthesize the data, drawing insights from 34 studies published prior to October 2024. The goal was to analyze the effects of the Metaverse on quality education, and to investigate the moderating influences of four variables: Metaverse tools, educational stages, subject area, and treatment duration. The results showed that the overall effect sizes for learning effects and learning experience were 0.922 and 1.153, respectively, suggesting that the Metaverse substantially influences educational effects and learning experience. The four moderating variables all play a significant role in shaping the influence of the Metaverse on both learning effects and experience. This meta-analysis highlights a striking trend: the Metaverse's effects were especially pronounced for elementary and secondary school students, but less so for university students. In addition, the Metaverse's effects were most significant in science disciplines.
随着科技的进步,虚拟世界正被用于提高学习效果和学习体验,以确保优质教育。然而,目前的实证研究产生了不同的结果。因此,我们执行了一项荟萃分析,利用第三版综合荟萃分析软件的功能,有效地综合数据,从2024年10月之前发表的34项研究中获得见解。目的是分析meta对素质教育的影响,并调查四个变量的调节作用:meta工具、教育阶段、学科领域和治疗持续时间。结果显示,学习效果和学习体验的总体效应量分别为0.922和1.153,表明虚拟世界对教育效果和学习体验有实质性影响。这四个调节变量都在形成虚拟世界对学习效果和经验的影响方面发挥了重要作用。这项荟萃分析突出了一个惊人的趋势:虚拟世界的影响对小学生和中学生尤为明显,而对大学生则不那么明显。此外,虚拟世界的影响在科学学科中最为显著。
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引用次数: 0
Capturing the Process of Students' AI Interactions When Creating and Learning Complex Network Structures 捕捉学生在创建和学习复杂网络结构时的人工智能交互过程
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-09 DOI: 10.1109/TLT.2025.3568599
Sonsoles López-Pernas;Kamila Misiejuk;Rogers Kaliisa;Mohammed Saqr
Despite the growing use of large language models (LLMs) in educational contexts, there is no evidence on how these can be operationalized by students to generate custom datasets suitable for teaching and learning. Moreover, in the context of network science, little is known about whether LLMs can replicate real-life network properties. This study addresses these gaps by evaluating the use of generative artificial intelligence (AI), specifically LLMs, to create synthetic network datasets for educational use. The analyzed data include students’ AI-generated network datasets, their interactions with the LLMs, and their perceptions and evaluations of the task's value. The results indicate that the LLM-generated networks had properties closer to real-life networks, such as higher transitivity, network density, and smaller mean distances compared to randomly generated networks. Thus, our findings show that students can use LLMs to produce synthetic networks with realistic structures while tailoring to the individual preferences of each student. The analysis of students’ interactions (prompts) with the LLMs revealed a predominant use of direct instructions and output specifications, with less emphasis on providing contextual details or iterative refinement of the LLM's responses, which highlights the need for AI literacy training to optimize students’ use of generative AI. Students’ perceptions of the use of AI were overall positive; they found using LLMs time saving and beneficial, although opinions on output relevance and quality varied, especially for assignments requiring replication of specific networks.
尽管在教育环境中越来越多地使用大型语言模型(llm),但没有证据表明学生如何操作这些模型来生成适合教学和学习的自定义数据集。此外,在网络科学的背景下,法学硕士是否可以复制现实生活中的网络属性,人们知之甚少。本研究通过评估生成式人工智能(AI)的使用,特别是法学硕士,来创建用于教育用途的合成网络数据集,从而解决了这些差距。分析的数据包括学生的人工智能生成的网络数据集,他们与法学硕士的互动,以及他们对任务价值的看法和评估。结果表明,与随机生成的网络相比,llm生成的网络具有更高的传递性、网络密度和更小的平均距离等特性,更接近现实生活中的网络。因此,我们的研究结果表明,学生可以使用法学硕士来制作具有现实结构的合成网络,同时根据每个学生的个人偏好进行定制。对学生与法学硕士互动(提示)的分析显示,主要使用直接指令和输出规范,较少强调提供上下文细节或迭代改进法学硕士的回答,这突出了人工智能素养培训的必要性,以优化学生对生成式人工智能的使用。学生对人工智能使用的看法总体上是积极的;他们发现使用llm既节省时间又有益,尽管对输出相关性和质量的看法不一,特别是对于需要复制特定网络的作业。
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引用次数: 0
Exploring Augmented Reality's Influence on Cognitive Load and Emotional Dynamics Within AAV Training Environments 探索增强现实对AAV训练环境中认知负荷和情绪动态的影响
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-08 DOI: 10.1109/TLT.2025.3568416
Fatema Rahimi;Abolghasem Sadeghi-Niaraki;Houbing Song;Huihui Wang;Soo-Mi Choi
This study investigates the cognitive and emotional processes involved in augmented reality (AR)-based learning. The study looks at learning outcomes, emotional responses, meditation, and attention using a comprehensive approach that includes self-assessment, electroencephalogram data gathering, and postexperiment questionnaires. In total, 12 participants, selected based on their English proficiency and lack of prior knowledge of the course material, engaged in AR-based learning, while a baseline reading condition was included to contextualize cognitive and emotional engagement. The study findings indicate that the AR group's participants demonstrated notably elevated attention and meditation levels, indicating heightened engagement and focus that is advantageous for efficient assimilation and retention of knowledge. Furthermore, AR learners reported feeling less tired and exhausted, which may have mitigated the negative emotional states that are frequently connected to learning activities. However, no significant differences in negative emotions were observed between the reading and AR groups. These results emphasize the value of customized AR environments for education goals and the need for more study to maximize learning outcomes and affective experiences in AR learning contexts.
本研究探讨了基于增强现实(AR)的学习中涉及的认知和情感过程。该研究采用综合方法考察学习成果、情绪反应、冥想和注意力,包括自我评估、脑电图数据收集和实验后问卷调查。总共有12名参与者,根据他们的英语水平和对课程材料缺乏先验知识的情况选择,参与基于ar的学习,同时包括基线阅读条件,以使认知和情感参与情境化。研究结果表明,AR组的参与者表现出显著提高的注意力和冥想水平,表明更高的参与度和注意力有利于有效地吸收和保留知识。此外,AR学习者报告说感觉不那么疲倦和疲惫,这可能减轻了经常与学习活动相关的负面情绪状态。然而,阅读组和AR组在负面情绪方面没有显著差异。这些结果强调了定制AR环境对教育目标的价值,以及需要更多的研究来最大化AR学习环境中的学习成果和情感体验。
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引用次数: 0
Parameter-Efficiently Fine-Tuning Large Language Models for Classroom Dialogue Analysis 参数有效微调课堂对话分析的大型语言模型
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-07 DOI: 10.1109/TLT.2025.3567995
Deliang Wang;Yaqian Zheng;Jinjiang Li;Gaowei Chen
Researchers have increasingly utilized artificial intelligence to automatically analyze classroom dialogue, aiming to provide timely feedback to teachers due to its educational significance. However, traditional machine learning and deep learning models face challenges, such as limited performance and lack of generalizability, across various dimensions of classroom dialogue and educational contexts. Recent efforts to utilize large language models (LLMs) for classroom dialogue analysis have predominantly relied on prompt engineering techniques, primarily due to the high costs associated with full fine-tuning, which has resulted in suboptimal performance and areas needing improvement. We, therefore, propose the application of parameter-efficient fine-tuning (PEFT) techniques to enhance the performance of LLMs in classroom dialogue analysis. Specifically, we utilized low-rank adaptation, a prominent PEFT technique, to fine-tune three state-of-the-art LLMs—Llama-3.2-3B, Gemma-2-9B, and Mistral-7B-v0.3—targeting the analysis of both teachers' and students' dialogic moves within K-12 mathematics lessons. The experimental results indicate that, in comparison to fully fine-tuning BERT and RoBERTa models and prompting LLMs, LLMs fine-tuned using the PEFT technique achieve superior performance. Moreover, the PEFT approach significantly reduced the number of trainable parameters within the LLMs by over 300 times and decreased their training duration. Although the training time for PEFT-tuned LLMs was still longer than that required for fully fine-tuning BERT and RoBERTa, these LLMs demonstrated specialization in this specific dimension and generalizability to other tasks and contexts. We believe that the use of PEFT techniques presents a promising direction for future research in classroom dialogue analysis.
研究人员越来越多地利用人工智能来自动分析课堂对话,旨在为教师提供及时的反馈,因为它具有教育意义。然而,传统的机器学习和深度学习模型面临着挑战,例如在课堂对话和教育背景的各个维度上,性能有限,缺乏通用性。最近利用大型语言模型(llm)进行课堂对话分析的努力主要依赖于快速工程技术,这主要是由于与完全微调相关的高成本,这导致了次优性能和需要改进的领域。因此,我们建议应用参数有效微调(PEFT)技术来提高法学硕士在课堂对话分析中的表现。具体来说,我们利用低阶适应(一种突出的PEFT技术)来微调三个最先进的llms——llama -3.2- 3b、Gemma-2-9B和mistral - 7b -v0.3——针对K-12数学课中教师和学生的对话动作进行分析。实验结果表明,与完全微调BERT和RoBERTa模型和提示llm相比,使用PEFT技术微调的llm具有更好的性能。此外,PEFT方法显着减少了llm中可训练参数的数量超过300倍,并缩短了它们的训练时间。尽管peft调优的法学硕士的培训时间仍然比完全微调BERT和RoBERTa所需的时间长,但这些法学硕士在这一特定维度上表现出专业化,并可推广到其他任务和上下文。我们相信,PEFT技术的使用为课堂对话分析的未来研究提供了一个有希望的方向。
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引用次数: 0
Reducing English Major Students’ Writing Errors With an Automated Writing Evaluation System: Evidence From Eye-Tracking Technology 用自动写作评价系统减少英语专业学生写作错误:来自眼动追踪技术的证据
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-03-05 DOI: 10.1109/TLT.2025.3547321
Bei Cai;Ziyu He;Hong Fu;Yang Zheng;Yanjie Song
Much research has applied automated writing evaluation (AWE) systems to English writing instruction; however, understanding how students internalize and apply this feedback to reduce writing errors is difficult, largely due to the personal and private nature of this process. Therefore, this research utilized eye-tracking technology to explore the AWE system's effectiveness in reducing the writing errors of English major students. A total of 118 higher vocational college students majoring in English in China participated in this eight-week study. The experimental group studied with and received feedback from both the AWE system (Pigai) and the teacher, whereas the control group studied without the AWE system and only received teacher feedback. Eye-tracking experiments were conducted before and after the writing instruction. Participants’ responses during the eye-tracking experiment, first-person eye movement video data, and corresponding gaze data were collected. Leveraging the application of neural network technology in optical character recognition (OCR), combined with data from an eye-tracking device, we developed a system that can transform first-person eye movement video data and gaze data into heatmaps and eye-tracking indices conducive to analysis. Various data analysis methods were employed, including neural network algorithms, heatmap analysis, Mann–Whitney U test, independent-samples t-test, and Welch's t-test. The results for the post-eye-tracking experiment responses, heatmaps, and eye-tracking indices indicate the advantages of using the AWE system, which effectively enhances students’ ability to recognize writing errors while reducing processing time by facilitating the internalization of writing errors through continuous feedback on such errors, and enabling them to apply this knowledge to new materials, thereby recognizing writing errors more quickly and accurately, and thus helping them to reduce writing errors. The pedagogical implications are fully discussed.
许多研究将自动写作评价系统应用于英语写作教学;然而,理解学生如何内化和应用这些反馈来减少写作错误是困难的,很大程度上是由于这个过程的个人和私人性质。因此,本研究利用眼动追踪技术来探讨AWE系统在减少英语专业学生写作错误方面的有效性。共有118名中国高职英语专业的学生参加了为期8周的研究。实验组同时使用AWE系统(Pigai)和教师进行学习并获得反馈,而对照组不使用AWE系统进行学习,只接受教师反馈。在写作指导前后分别进行了眼动追踪实验。收集被试在眼动追踪实验中的反应、第一人称眼动视频数据以及相应的注视数据。利用神经网络技术在光学字符识别(OCR)中的应用,结合眼动追踪设备的数据,我们开发了一个系统,可以将第一人称眼动视频数据和凝视数据转换为热图和眼动追踪指数,便于分析。采用多种数据分析方法,包括神经网络算法、热图分析、Mann-Whitney U检验、独立样本t检验、Welch t检验等。眼动后实验反应、热图和眼动指标的结果表明,使用AWE系统的优势在于,通过对写作错误的持续反馈,促进写作错误的内化,有效提高学生识别写作错误的能力,同时减少处理时间,使学生能够将这些知识应用到新的材料中,从而更快、更准确地识别写作错误。从而帮助他们减少写作错误。对教学意义进行了充分的讨论。
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引用次数: 0
PythonPal: Enhancing Online Programming Education Through Chatbot-Driven Personalized Feedback PythonPal:通过聊天机器人驱动的个性化反馈增强在线编程教育
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-02-28 DOI: 10.1109/TLT.2025.3545084
Sirinda Palahan
The rise of online programming education has necessitated more effective personalized interactions, a gap that PythonPal aims to fill through its innovative learning system integrated with a chatbot. This research delves into PythonPal's potential to enhance the online learning experience, especially in contexts with high student-to-teacher ratios where there is a need for personalized feedback. PythonPal's design, featuring modules for conversation, tutorials, and exercises, was evaluated through student interactions and feedback. Key findings reveal PythonPal's proficiency in syntax error recognition and user query comprehension, with its intent classification model showing high accuracy. The system's performance in error feedback, though varied, demonstrates both strengths and areas for enhancement. Student feedback indicated satisfactory query understanding and feedback accuracy but also pointed out the need for faster responses and improved interaction quality. PythonPal's deployment promises to significantly enhance online programming education by providing immediate personalized feedback and interactive learning experiences, fostering a deeper understanding of programming concepts among students. These benefits mark a step forward in addressing the challenges of distance learning, making programming education more accessible and effective.
在线编程教育的兴起需要更有效的个性化交互,PythonPal旨在通过与聊天机器人集成的创新学习系统来填补这一空白。这项研究深入探讨了PythonPal在提高在线学习体验方面的潜力,特别是在学生与教师比例高的情况下,需要个性化的反馈。PythonPal的设计以对话、教程和练习模块为特色,通过学生的互动和反馈进行评估。主要发现表明,PythonPal在语法错误识别和用户查询理解方面非常熟练,其意图分类模型显示出很高的准确性。系统在误差反馈方面的性能虽然各不相同,但也显示出了优点和需要改进的地方。学生的反馈表明对查询的理解和反馈的准确性令人满意,但也指出需要更快的响应和改进的交互质量。PythonPal的部署承诺通过提供即时的个性化反馈和交互式学习体验来显著增强在线编程教育,促进学生对编程概念的更深入理解。这些好处标志着在解决远程学习挑战方面迈出了一步,使编程教育更容易获得和有效。
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引用次数: 0
An Intelligent Tutoring System to Support Code Maintainability Skill Development 支持代码可维护性技能开发的智能辅导系统
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-02-25 DOI: 10.1109/TLT.2025.3545641
Nikola M. Luburić;Luka Ž. Dorić;Jelena J. Slivka;Dragan Lj. Vidaković;Katarina-Glorija G. Grujić;Aleksandar D. Kovačević;Simona B. Prokić
Software engineers are tasked with writing functionally correct code of high quality. Maintainability is a crucial code quality attribute that determines the ease of analyzing, modifying, reusing, and testing a software component. This quality attribute significantly affects the software's lifetime cost, contributing to developer productivity and other quality attributes. Consequently, academia and industry emphasize the need to train software engineers to build maintainable software code. Unfortunately, code maintainability is an ill-defined domain and is challenging to teach and learn. This problem is aggravated by a rising number of software engineering students and a lack of capable instructors. Existing instructors rely on scalable one-size-fits-all teaching methods that are ineffective. Advances in e-learning technologies can alleviate these issues. Our primary contribution is the design of a novel assessment item type, the maintainability challenge. It integrates into the standard intelligent tutoring system (ITS) architecture to develop skills for analyzing and refactoring high-level code maintainability issues. Our secondary contributions include the code maintainability knowledge component model and the implementation of an ITS that supports the maintainability challenge for the C# programming language. We designed, developed, and evaluated the ITS over two years of working with undergraduate students using a mixed-method approach anchored in design science. The empirical evaluations culminated with a field study with 59 undergraduate students. We report on the evaluation results that showcase the utility of our contributions. Our contributions support software engineering instructors in developing the code maintainability skills of their students at scale.
软件工程师的任务是编写功能正确的高质量代码。可维护性是一个关键的代码质量属性,它决定了分析、修改、重用和测试软件组件的难易程度。这个质量属性显著地影响软件的生命周期成本,有助于开发人员的生产力和其他质量属性。因此,学术界和工业界强调需要培训软件工程师来构建可维护的软件代码。不幸的是,代码可维护性是一个定义不清的领域,很难教授和学习。软件工程专业学生数量的增加和有能力的教师的缺乏加剧了这个问题。现有的教师依赖于可扩展的一刀切的教学方法,这是无效的。电子学习技术的进步可以缓解这些问题。我们的主要贡献是设计了一种新的评估项目类型,即可维护性挑战。它集成到标准的智能辅导系统(ITS)体系结构中,以开发分析和重构高级代码可维护性问题的技能。我们的次要贡献包括代码可维护性知识组件模型和支持c#编程语言可维护性挑战的ITS的实现。我们在两年多的时间里与本科生一起设计、开发和评估了智能交通系统,采用了以设计科学为基础的混合方法。通过对59名本科生的实地研究,实证评估达到了高潮。我们报告评估结果,展示我们的贡献的效用。我们的贡献支持软件工程讲师大规模地开发他们学生的代码可维护性技能。
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引用次数: 0
Enhancing Sand-Table-Based Incident Command Training With Extended Reality and Interactive Simulations: A Use Case in Forest Firefighting 用扩展现实和交互模拟增强基于沙盘的事故指挥训练:森林消防用例
IF 2.9 3区 教育学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Pub Date : 2025-02-24 DOI: 10.1109/TLT.2025.3545436
Lorenzo Valente;Federico De Lorenzis;Davide Calandra;Fabrizio Lamberti
In recent years, first responders have faced increasing challenges in their operations, highlighting a growing need for specialized and comprehensive training. In particular, the firefighting incident commanders (ICs) are playing a pivotal role, providing directions to field operators and making critical decisions in emergency situations. Over time, traditional training tools in this field have evolved, reaching their pinnacle with augmented sand tables (ASTs). ASTs build on spatial augmented reality (SAR), a form of extended reality (XR) that utilizes projections. Although ASTs enable large-scale visualization of the morphological features of the terrain, by relying solely on SAR, it is not possible to fully leverage the potential of XR, which is increasingly recognized as a powerful tool for training. This work introduces a novel approach to training ICs by integrating ASTs with XR, incorporating a learning-by-doing methodology alongside an objective measurement of trainees' performance. To this end, an XR training system (XRTS) has been developed, combining the capabilities of an AST with personal mixed reality devices and integrating a physically accurate interactive fire simulator. This system was deployed within a forest firefighting IC training course. All the system components were designed based on the theoretical foundations of decision making to effectively develop the necessary skills. The proposed approach was compared with traditional AST-based training methods for these roles, focusing on the analysis of learning outcomes, user experience, usability, and cognitive load. The study demonstrated several advantages associated with the use of the XRTS, including improvements in training effectiveness and a notable reduction in overall cognitive load.
近年来,急救人员在行动中面临越来越多的挑战,这凸显了对专业和全面培训的日益增长的需求。特别是,消防事故指挥官(ic)发挥着关键作用,向现场操作员提供指示,并在紧急情况下做出关键决策。随着时间的推移,这一领域的传统培训工具也在不断发展,并随着增强型沙盘(ast)达到了顶峰。ast建立在空间增强现实(SAR)基础上,这是一种利用投影的扩展现实(XR)形式。尽管ast能够实现地形形态特征的大规模可视化,但仅依靠SAR,不可能充分利用XR的潜力,XR越来越被认为是一种强大的训练工具。这项工作引入了一种通过将ast与XR相结合来培训ic的新方法,结合了边做边学的方法以及对受训者绩效的客观测量。为此,开发了XR训练系统(XRTS),将AST的功能与个人混合现实设备相结合,并集成了物理精确的交互式火灾模拟器。该系统已在森林消防集成电路培训课程中部署。所有系统组件都基于决策的理论基础进行设计,以有效地培养必要的技能。将该方法与传统的基于ast的角色培训方法进行了比较,重点分析了学习结果、用户体验、可用性和认知负荷。该研究证明了使用XRTS的几个优势,包括提高训练效率和显著减少总体认知负荷。
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IEEE Transactions on Learning Technologies
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