AgasedViz: visualizing groundwater availability of Ogallala Aquifer, USA

Dang, Tommy; Pham, Vung; Nguyen, Huyen; Nguyen, Ngan V.T.

doi:10.1007/s12665-020-8851-6

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The explicit context is characterized by words as topics and their distribution over time. The technique of Word-Stream is commonly used in visualizing a large corpus of text such as geo-tag messages from social media [8,20] or social media discussions [12,26] for further analysis on emerging topics. In [20], the additional context to topics is provided on tool-tip and mouseover interaction, which offers quick details-on-demand information without cluttering the view.…”

Section: Text Visualizationmentioning

confidence: 99%

Interactive Qualitative Data Visualization for Educational Assessment

Nguyen

Trujillo

Wee

et al. 2021

The 12th International Conference on Advances in Information Technology

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Data visualization accelerates the communication of quantitative measures across many fields, including education, but few visualization methods exist for qualitative data in educational fields that capture both the context-specific information and summarize trends for instructors. In this paper, we design an interface to visualize students' weekly journal entries collected as formative educational assessments from an undergraduate data visualization course and a statistics course. Using these qualitative data, we present an interactive WordStream and word cloud to show the temporal and topic-based organization of students' development during instruction and explore the patterns, trends, and diversity of student ideas in a context-specific way. Informed by the Technology Acceptance Model, we used an informal user study to evaluate the perceived ease of use and usefulness of the tool for instructors using journal entries. Our evaluation found the tool to be intuitive, clear, and easy-to-use to explore student entries, especially words of interest, but might be limited by focusing on word frequencies rather than underlying relationships among the student's ideas or other measures in assessment. Implications and challenges for bridging qualitative data for educational assessment with data visualization methods are discussed. CCS CONCEPTS• Applied computing → Education; • Human-centered computing → Visualization systems and tools; Information visualization.

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Section: Text Visualizationmentioning

confidence: 99%

Interactive Qualitative Data Visualization for Educational Assessment

Nguyen

Trujillo

Wee

et al. 2021

The 12th International Conference on Advances in Information Technology

Self Cite

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“…Having a good HCI design is a challenging task since it not only has to cope with "more than just a computer now... but considerable awareness that touch, speech, and gesture-based interfaces" [4] but also requires a substantial cognitive effort to think and make the product that encompassed the aspects of useful, usable, and ultimately used by the public [13], such as user interfaces assisting monitoring and system operational tasks [7,15]. Literature work has contributed significantly to fostering HCI from imposing design principles, processes, guidelines to teaching.…”

Section: Introductionmentioning

confidence: 99%

Interface Design for HCI Classroom: From Learners’ Perspective

Nguyen

Dang

2020

Advances in Visual Computing

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Having a good Human-Computer Interaction (HCI) design is challenging. Previous works have contributed significantly to fostering HCI, including design principle with report study from the instructor view. The questions of how and to what extent students perceive the design principles are still left open. To answer this question, this paper conducts a study of HCI adoption in the classroom. The studio-based learning method was adapted to teach 83 graduate and undergraduate students in 16 weeks long with four activities. A standalone presentation tool for instant online peer feedback during the presentation session was developed to help students justify and critique other's work. Our tool provides a sandbox, which supports multiple application types, including Web-applications, Object Detection, Web-based Virtual Reality (VR), and Augmented Reality (AR). After presenting one assignment and two projects, our results showed that students acquired a better understanding of the Golden Rules principle over time, which was demonstrated by the development of visual interface design. The Wordcloud reveals the primary focus was on the user interface and shed some light on students' interest in user experience. The inter-rater score indicates the agreement among students that they have the same level of understanding of the principles. The results show a high level of guideline compliance with HCI principles, in which we witnessed variations in visual cognitive styles. Regardless of diversity in visual preference, the students presented high consistency and a similar perspective on adopting HCI design principles. The results also elicited suggestions into the development of the HCI curriculum in the future.

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