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Automatic evaluation of learning objects based on cross-entropy of eye fixations minimization 基于交叉熵最小化注视的学习对象自动评价
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123872
Carlos Lara, Maria Alvarado-Hernandez, Hugo A. Mitre-Hernández
Learning objects (LOs) are important information resources that support traditional learning methods. To evaluate the impact, effectiveness, and usefulness of learning objects it is necessary a theoretically, reliable, and valid evaluation tool. This paper presents a cross-entropy metric to compare the design of LO that uses the information provided by visual fixations measured from a small focus group. The cross-entropy is measured on the test set to assess how accurate the entropy constancy rate principle is in predicting the test data. We conducted an experiment with children of elementary school (n=23). Results show that images with lower values of the proposed metric can be easily read (Mean = 0.746 min/image) than those LO composed of random images (Mean = 0.977 min/image). Hence, the metric is useful to optimize the fluency. This is an important step through the design of a fully automated tool to evaluate LO.
学习对象是支持传统学习方法的重要信息资源。要评价学习对象的影响、有效性和有用性,需要一个理论上可靠、有效的评价工具。本文提出了一个交叉熵度量来比较LO的设计,该设计使用了从一个小焦点组中测量的视觉注视提供的信息。在测试集上测量交叉熵,以评估熵不变率原理在预测测试数据方面的准确性。我们对小学生进行了一个实验(n=23)。结果表明,与由随机图像组成的盲检结果(均值= 0.977 min/图像)相比,具有较低度量值的图像更容易被读取(均值= 0.746 min/图像)。因此,该度量对于优化流畅性是有用的。这是通过设计全自动工具来评估LO的重要一步。
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引用次数: 1
Semiautomated cognitive tutor, to serve as a support in upper secondary students in solving algebra problems 半自动认知辅导,为高中生解决代数问题提供支持
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123876
Pedroza-Méndez Blanca-Estela, G. Josefina
Learning mathematics is closely related with the fact that the student knows how to solve problems. There are cognitive theories that say that problem solving teaching requires techniques based on the student's cognitive ability, linked to the type of problems or examples (when cognitive ability is low) that must work. This process requires automated tools to identify the characteristics of the students in order to provide more personalized teaching strategies and also manage feedback that helps the student and the teacher to identify their achievements. These types of automated tools are known as cognitive tutors, which are intelligent tutoring systems, with the particularity of being focused on providing individualized support to students to improve their complex cognitive skills, through problem-solving practice. On the other hand, it is considered that algebra, in addition to arithmetic, are the areas that serve as the basis for the understanding of many mathematical subjects. Therefore, in this thesis project a semi-automated tool is proposed, by means of which, the different modules of a cognitive tutor are implemented, following an instructional design for solving algebra problems, through the management of gamification and game strategies based on the techniques of computational theory of tangible user interfaces. For the student model module, a fuzzy model is used to detect and classify the student's cognitive ability. In modules of model of the domain and the tutor model, fuzzy cognitive maps are defined and implemented to determine, respectively, the activities related to the different types of problems related to various algebra topics and to determine the pedagogical activities that the student must follow in each of the stages of problem solving.
学习数学与学生知道如何解决问题密切相关。有认知理论认为,解决问题的教学需要基于学生认知能力的技巧,与必须起作用的问题或例子的类型(当认知能力较低时)相关联。这个过程需要自动化工具来识别学生的特征,以便提供更个性化的教学策略,并管理反馈,帮助学生和老师识别他们的成就。这些类型的自动化工具被称为认知导师,这是一种智能辅导系统,其特点是专注于为学生提供个性化的支持,通过解决问题的实践来提高他们复杂的认知技能。另一方面,除了算术之外,代数也被认为是理解许多数学学科的基础。因此,在本论文项目中提出了一个半自动化的工具,通过基于有形用户界面计算理论技术的游戏化和游戏策略管理,遵循解决代数问题的教学设计,通过该工具实现认知导师的不同模块。在学生模型模块中,采用模糊模型对学生的认知能力进行检测和分类。在领域模型模块和导师模型模块中,定义并实现了模糊认知图,分别确定与各种代数主题相关的不同类型问题相关的活动,并确定学生在解决问题的每个阶段必须遵循的教学活动。
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引用次数: 1
A case study of usability evaluation of an InfoVis tool for analyzing Twitter 一个用于分析Twitter的InfoVis工具的可用性评估案例研究
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123870
Víctor M. González, Hector Hernandez, Cassandra Pratt, G. Garduño
This paper1 presents a case study to identify the characteristics of an information visualization tool that facilitates its learning and adoption process in the context of professional practice. We identified the principal categories that explain the most important aspects on the usefulness of the info vis tool that emerged during the practical use of the system and the challenges for its adoption. Our results point to the value of allowing more consideration of the user needs and may direct a future research on the development of information visualization tools.
本文提出了一个案例研究,以确定信息可视化工具的特征,从而促进其在专业实践背景下的学习和采用过程。我们确定了主要类别,这些类别解释了在系统实际使用过程中出现的信息可视化工具有用性的最重要方面,以及采用它所面临的挑战。我们的研究结果指出了允许更多地考虑用户需求的价值,并可能指导未来对信息可视化工具开发的研究。
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引用次数: 0
Teaching experience of the human-computer interaction course at the universidad autónoma de occidente of Colombia 曾在哥伦比亚西方大学autónoma教授人机交互课程
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123822
Andrés F. Solano
Human-Computer Interaction (HCI) is a discipline related to the design, evaluation and implementation of interactive systems for use by people; and with the study of the most important phenomena related to this type of interaction. At the Universidad Autónoma de Occidente (UAO), Cali, Colombia, the HCI course is mandatory in the Multimedia Engineering program. The objective of the course is that students acquire, recognize and apply basic concepts and methodologies of analysis, design and implementation of HCI techniques for the development of interactive systems. Thus, the course offers students the knowledge and techniques so that they are able to obtain easy-to-use and easy-to-learn interactive systems. This paper presents the HCI course taught at the UAO and the analysis of the changes to be included in the course design, considering the teacher's experience and the trends in the discipline.
人机交互(HCI)是一门与设计、评估和实现供人们使用的交互系统有关的学科;以及与这种互动相关的最重要现象的研究。在哥伦比亚卡利的西方大学Autónoma (UAO),多媒体工程专业必修HCI课程。本课程的目标是让学生掌握、认识和应用分析、设计和实现人机交互技术的基本概念和方法,以开发交互式系统。因此,本课程为学生提供了知识和技术,使他们能够获得易于使用和易学的交互系统。本文介绍了UAO开设的HCI课程,并考虑到教师的经验和学科的发展趋势,分析了课程设计中要包括的变化。
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引用次数: 3
Towards cognitive-affective modeling based on students' traits and preferences 基于学生特质和偏好的认知-情感模型研究
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123859
N. S. Huerta-Pacheco, G. Rebolledo-Méndez, Sergio Hernandez-Gonzalez, Claudio R. Castro-Lopez
This paper presents preliminary results in the construction of a cognitive-affective model based on both students' internal and external characteristics and student's preferences an Intelligent Tutoring System (ITS) for mathematics. The development of such model is important because using students' traits to predict achievement and affective reactions in the use of the tutoring system may be a more economical solution than real time modeling both cognition and affect. The hypothesis of this research project is that it is possible to conceptualize a model that could be used to predict students' affect and cognitive achievement in the interaction with a tutoring system for mathematics. Preliminary results suggest that, at least when considering students' preferences, it is possible to observe tendencies in line with our research hypothesis. Future studies will use other theoretical constructs to make the proposed conceptual model more robust.
本文介绍了基于学生内外特征和学生偏好的数学智能辅导系统的认知-情感模型构建的初步结果。这种模型的发展很重要,因为在使用辅导系统时,使用学生的特征来预测成绩和情感反应可能是比实时建模认知和情感更经济的解决方案。本研究项目的假设是,有可能概念化一个模型,可以用来预测学生在与数学辅导系统互动时的情感和认知成就。初步结果表明,至少在考虑学生的偏好时,有可能观察到与我们的研究假设相符的趋势。未来的研究将使用其他理论结构来使所提出的概念模型更加稳健。
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引用次数: 0
25 years teaching HCI in UdL 在UdL教了25年HCI
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123820
T. Granollers, M. Sendín, Roberto García, Marta Oliva, R. Gil, J. M. Gimeno, J. E. Garrido
This work shows the evolution of teaching HCI in the university studies of computer engineering at the University of Lleida. The progress is described in terms of the content and the teaching methodologies based on the experience acquired during the last 25 years. The article details the changes made in the different degrees, from the methodology to the content perspective. The intent is to provide a reference document that can be useful for the teaching community interested in the Human-Computer Interaction discipline.
这项工作展示了在莱伊达大学计算机工程研究中HCI教学的演变。根据过去25年获得的经验,在内容和教学方法方面描述了进展。本文从方法论到内容的角度,详细介绍了不同程度的变化。其目的是为对人机交互学科感兴趣的教学社区提供一个有用的参考文档。
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引用次数: 0
Serious game to train auditory discrimination and identification in children with hearing impairments 严肃游戏训练听力障碍儿童的听觉辨别和识别能力
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123847
C. Manresa-Yee, Ramon Mas, Sandra P. Cano
This1 paper presents the design of a serious game whose objective is to work the auditory identification and discrimination in children with hearing impairments, both for children using cochlear implants or auditory aids. The design takes into account emotional design issues, serious game development methodologies and the activities carried out by educators and therapists with children to work on these auditory skills.
本文介绍了一个严肃游戏的设计,其目的是对使用人工耳蜗或助听器的听力障碍儿童进行听觉识别和辨别。该设计考虑到了情感设计问题、严肃的游戏开发方法以及教育工作者和治疗专家针对儿童开展的训练这些听觉技能的活动。
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引用次数: 0
E-mail management system for blind people in spanish language 西班牙语盲人电子邮件管理系统
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123857
G. Tapia, Ana Lilia Reyes-Herrera
Nowadays, due to advances in the media, in particular after the emergence of the Internet, millions of people are communicating through e-mail. Unfortunately, this type of communication is not accessible to blind people. Currently these people need assistance to be able to access their email in reading and writing. This paper presents an application for the reading, writing and sending of emails using voice as a mean of communication between the computer and the person, in the Spanish language. This application was evaluated by five people with visual impairment at the special education school "Baltazar Maldonado Olvera", in the community of San Andrés, in the municipality of Tzompantepec, Tlaxcala, México; obtaining very good results.
如今,由于媒体的进步,特别是在互联网出现后,数以百万计的人通过电子邮件交流。不幸的是,盲人无法使用这种交流方式。目前,这些人需要帮助,以能够访问他们的电子邮件阅读和写作。本文介绍了一种应用程序,用于阅读,写作和发送电子邮件,使用语音作为计算机和人之间的通信手段,在西班牙语。这一申请由5名视障人士在特拉斯卡拉省特孔帕特佩克市圣安德拉西姆斯社区的特殊教育学校“Baltazar Maldonado Olvera”进行评估;取得了很好的效果。
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引用次数: 1
Aratraductor: text to pictogram translation using natural language processing techniques 翻译:使用自然语言处理技术的文本到象形文字的翻译
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123825
S. Bautista, Raquel Hervás, Agustín Hernández-Gil, Carlos Martínez-Díaz, Sergio Pascua, Pablo Gervás
Nowadays, there is a significant amount of the population that have problems when communicating through written text. This means that many people are in high risk of social exclusion as they find themselves without access to key forms of communication such as writing and reading. Besides, this form of communication has become more relevant in relation to new technologies. This paper focuses on providing a tool for translating Spanish text into pictograms that aims to facilitate access to written information for people who cannot use natural language due to physical or mental disabilities. In order to improve the obtained translations we have used Natural Language Processing (NLP) techniques. The evaluation of the system effectively confirms that obtained translations are not only accurate but closer to human-made translations than the ones obtained by a similar tool.
如今,有相当多的人在通过书面文本进行交流时存在问题。这意味着许多人面临被社会排斥的高风险,因为他们发现自己无法获得写作和阅读等关键的交流方式。此外,这种交流形式与新技术的关系也越来越密切。本文的重点是提供一种将西班牙语文本翻译成象形文字的工具,旨在为那些由于身体或精神残疾而无法使用自然语言的人提供方便的书面信息。为了提高翻译的质量,我们使用了自然语言处理(NLP)技术。对该系统的评估有效地证实了所获得的翻译不仅准确,而且比由类似工具获得的翻译更接近人工翻译。
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引用次数: 4
Evaluating fitts' law performance with a non-ISO task 通过非iso任务评估fitts的法律绩效
Pub Date : 2017-09-25 DOI: 10.1145/3123818.3123827
Maria Francesca Roig-Maimó, I. Mackenzie, C. Manresa-Yee, J. Varona
We used a target-selection task to evaluate head-tracking as an input method on a mobile device. The procedure used a non-ISO Fitts' law task since targets were randomly positioned from trial to trial. Due to a non-constant amplitude within each sequence of trials, throughput was calculated using two methods of data aggregation: by sequence of trials using the mean amplitude and by common A-W conditions. For each data set, we used four methods for calculating throughput. The grand mean for throughput calculated using the division of means and the adjustment for accuracy was 0.74 bps, which is 45% lower than the value obtained using an ISO task. We recommend calculating throughput using the division of means (and not the slope reciprocal from the regression model) and with the adjustment for accuracy. We present design recommendation for non-ISO tasks: Keep amplitude and target width constant within each sequence of trials and use strategies to avoid or remove reaction time.
我们使用目标选择任务来评估头部跟踪作为移动设备上的输入法。该程序使用了非iso菲茨定律任务,因为目标从一个试验随机定位到另一个试验。由于每个试验序列的振幅不恒定,因此使用两种数据聚合方法计算吞吐量:使用平均振幅的试验序列和使用常见的a - w条件。对于每个数据集,我们使用了四种方法来计算吞吐量。使用均值除法和精度调整计算的吞吐量的大平均值为0.74 bps,比使用ISO任务获得的值低45%。我们建议使用均值除法(而不是回归模型的斜率倒数)和精度调整来计算吞吐量。我们提出了非iso任务的设计建议:在每个试验序列中保持振幅和目标宽度恒定,并使用策略来避免或消除反应时间。
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引用次数: 15
期刊
Proceedings of the XVIII International Conference on Human Computer Interaction
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