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Quantifying International Travel Flows Using Flickr.

Daniele Barchiesi¹, Helen Susannah Moat², Christian Alis¹

¹Department of Mathematics, University College London, London, United Kingdom.

|July 7, 2015

Summary

Online photo sharing platforms like Flickr offer a novel way to track international travel. Flickr data on user locations and movement significantly correlates with official UK visitor statistics, demonstrating its potential for human mobility analysis.

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Area of Science:

Computational social science
Human mobility studies
Digital data analysis

Background:

Online social media provides unprecedented opportunities for analyzing human behavior at scale.
Digital data offers a potentially faster and more cost-effective alternative to traditional surveys for behavioral measurements.

Purpose of the Study:

To quantify international travel flows using geotagged photographs from Flickr.
To assess the validity of using online photo data as a proxy for human mobility.

Main Methods:

Extraction of user locations from geotagged Flickr photographs.
Inference of user movement trajectories over time.
Statistical correlation analysis between Flickr-based estimates and official statistics.

Main Results:

Flickr-based estimates of UK visitors showed significant correlation with official UK Office for National Statistics data.
This correlation was observed for 28 different countries.
The study highlights the utility of online photo data for mobility research.

Conclusions:

Geotagged photographs on platforms like Flickr can serve as a valuable data source for understanding international travel patterns.
Digital indicators derived from online data hold potential for monitoring key aspects of human behavior, such as mobility.
This approach offers a scalable and efficient method for complementing traditional data collection in social science research.