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Computation and Elicitation of Valleyness

机译:低谷的计算与启发

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Existing methods for land surface form characterisation often focus on relatively simple landform element classifications and do not evaluate results with large scale participant experiments. This piece of research takes a semantics-grounded approach to characterising the landform valley. Based on definitions three algorithms to characterise valleys in a fuzzy way are introduced. Comparison of the results to assessments regarding the degree of being in a valley gained from over 800 participants in a questionnaire survey yields significant amounts of explained variance (R~2 = 0.35-0.37). Furthermore, accounting for very ambiguously perceived stimuli showing vast low places leads to markedly improved regressions (R~2 = 0.45-0.49), weighting of the data with a measure of uncertainty in judgment even more so (R~2 = 0.50-0.55).
机译:现有的用于地表形态表征的方法通常集中在相对简单的地貌要素分类上,并且不通过大规模的参与者实验来评估结果。这项研究采用了基于语义的方法来表征地形谷。根据定义,介绍了三种以模糊方式表征谷值的算法。将结果与对问卷调查中800多个参与者获得的谷底程度的评估进行比较后,可以得出大量的解释方差(R〜2 = 0.35-0.37)。此外,考虑到显示巨大低位的非常模糊的感知刺激会导致回归显着改善(R〜2 = 0.45-0.49),对数据的加权以及判断中的不确定性更是如此(R〜2 = 0.50-0.55) 。

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