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首页> 外文会议>Human Factors and Ergonomics Society;Human Factors and Ergonomics Society annual meeting >A FINE LINE: TARGET SLOPE AND SIMILARITY OF DISTRACTORS’ EFFECT ON EXTREMUM TREND SPOTTING
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A FINE LINE: TARGET SLOPE AND SIMILARITY OF DISTRACTORS’ EFFECT ON EXTREMUM TREND SPOTTING

机译：一条细线：目标坡度和压榨者对极端趋势斑点影响的相似性

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摘要

Trend lines are a powerful visualization tool for displaying data over a period of time. Previous researchhas shown that trend lines are encoded as a single object containing one value (a slope for linear trends),but the exact mechanics of how trend stimuli are processed is not well known. The present research set outto determine what factors impact comparisons between trend line slopes and what is the visual andcognitive process that underlies these comparisons. Results suggest that there may be a two-phase processwhen searching for an extremum in a set of trend lines, where during an initial phase a person will searchthe stimuli based on a mental anchor to identify candidates, and then make direct comparisons betweenthose competitors during a second phase. This trend holds true whether a person is searching for thesteepest or least steep slope in a set of trend lines. This result has instant applications to visualizationdesigners who use slope as a feature in their graphics, and is especially important when choosing x/y axisaspect ratio as this choice directly transforms presented slope.
机译：趋势线是功能强大的可视化工具，用于显示一段时间内的数据。先前的研究 表明趋势线被编码为包含一个值（线性趋势的斜率）的单个对象， 但是尚不清楚如何处理趋势刺激的确切机制。目前的研究出发 确定哪些因素会影响趋势线斜率之间的比较以及什么是视觉和 这些比较基础的认知过程。结果表明可能存在两个阶段的过程 在一组趋势线中搜索极值时，在初始阶段，一个人将搜索 基于心理锚的刺激来识别候选者，然后直接进行比较 在第二阶段的那些竞争对手。无论人们是否正在搜索该趋势，这种趋势都成立。 一组趋势线中最陡峭或最不陡峭的斜率。该结果可立即应用于可视化 在图形中使用坡度作为特征的设计师，在选择x / y轴时尤其重要 长宽比，因为此选择直接转换了呈现的坡度。

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