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Fig. 11 | Environmental Health

Fig. 11

From: Automated classification of time-activity-location patterns for improved estimation of personal exposure to air pollution

Fig. 11

Fourfold displays of confusion matrices to visualise the performance of the space-use model. Model predictions were compared against participant logs and assigned to one of four classes represented by a quarter of a circle as shown in the legend. The size of each quarter is proportional to the counts of observations belonging to that class. Blue quarters indicate correctly classified positive and negative labels while orange quarters correspond to erroneous classifications. Quantitative evaluation metrics are displayed under each fourfold plot for each visited micro-environment. (a-f) Microenvironments and activities identified with a composite model of rule-based algorithms and spatio-temporal movement analysis. (g-l) Modes of transport classified with an RF model applied to True Positive and True Negative transit observations

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