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Strengths and Weaknesses of Global Positioning System (GPS) Data-Loggers and Semi-structured Interviews for Capturing Fine-scale Human Mobility: Findings from Iquitos, Peru

Figure 1

Locations inferred by (A) semi-structured interviews (SSI) and (B) GPS units.

(A) Spatial distribution of all locations reported as visited by 160 participants during a 14-day period. (B) Raw GPS tracks (yellow points) and locations inferred after the application of a data-reduction algorithm (black dots) that assigns each track to a specific location code in the Iquitos GIS.

Figure 1

doi: https://doi.org/10.1371/journal.pntd.0002888.g001