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. Author manuscript; available in PMC: 2017 Jun 8.
Published in final edited form as: Trans GIS. 2016 Apr 12;20(6):869–886. doi: 10.1111/tgis.12181

Figure 7.

Figure 7

An example of an over detection of walking activity: all GPS points in the figure belong to a staying activity inside the building. However, due to signal shielding, a group of consecutive points exhibit a curve pattern (shown inside the red circle) that was mistakenly classified as walking activity by the classification method proposed in this paper.