使用可重新排序的矩阵和热图来支持学生成绩单的数据分析

Rafael Tavares Carvalho Barros, Thiago Gonçalves Mendes, C. D. Silva
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引用次数: 2

摘要

对于课程协调员来说,分析几个学生的成绩单以确定科目或学生的情况通常是通过文本和数字方法执行的老式过程。这项工作是一个更大的项目的一部分,旨在选择适当的视觉表示,以帮助课程协调员分析学生的成绩单集。在这项工作中,我们开发了一个系统,可以通过学生各科成绩的热图将学生成绩单可视化。热图根据用户定义的色阶表示等级。为了帮助分析,可以使用最优叶序算法对科目和学生进行重新排序,甚至可以根据特定科目或学生的成绩进行重新排序。此外,还开发了一些功能来满足视觉指南,如概述、缩放、过滤器和按需细节。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Use of reorderable matrices and heatmaps to support data analysis of students transcripts
For a course coordinator, the analysis of several students’ transcripts to identify the situation of subjects or students is often an old-fashioned process executed through a textual and numerical approach. This work is part of a larger project aimed at choosing appropriate visual representations to help course coordinators to analyze sets of students transcripts. In this work, we developed a system that allows the visualization of student transcripts through a heatmap of student grades per subject. The heatmap represent grades based on a user-defined color scale. To assist in the analysis, it is possible to reorder subjects and students using the optimal leaf order algorithm, or even to reorder according to the grades of a specific subject or student. In addition, some features have been developed to meet visual guidelines, such as overview, zoom, filter and details-on-demand.
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