Making Parameter Dependencies of Time‐Series Segmentation Visually Understandable
Making Parameter Dependencies of Time‐Series Segmentation Visually Understandable
复制标题
使时间序列分割的参数依赖性直观易懂
DOI:
10.1111/cgf.13894
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发表时间:
2020
影响因子:
2.5
通讯作者:
Tominski
中科院分区:
文献类型:
--
作者:
Eichner;Schumann;Tominski
This work presents an approach to support the visual analysis of parameter dependencies of time‐series segmentation. The goal is to help analysts understand which parameters have high influence and which segmentation properties are highly sensitive to parameter changes. Our approach first derives features from the segmentation output and then calculates correlations between the features and the parameters, more precisely, in parameter subranges to capture global and local dependencies. Dedicated overviews visualize the correlations to help users understand parameter impact and recognize distinct regions of influence in the parameter space. A detailed inspection of the segmentations is supported by means of visually emphasizing parameter ranges and segments participating in a dependency. This involves linking and highlighting, and also a special sorting mechanism that adjusts the visualization dynamically as users interactively explore individual dependencies. The approach is applied in the context of segmenting time series for activity recognition. Informal feedback from a domain expert suggests that our approach is a useful addition to the analyst's toolbox for time‐series segmentation.
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DOI:
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期刊:
Eurographics Conference on Visualization
影响因子:
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DOI:
--
发表时间:
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期刊:
IEEE Conference on Visual Analytics Science and Technology
影响因子:
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