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Updated: May 11, 2026

Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
Where am I? Location archetype keyword extraction from urban mobility patterns
Vassilis Kostakos1, Tomi Juntunen, Jorge Goncalves
1Department of Computer Science & Engineering, University of Oulu, Oulu, Finland. vassilis@ee.oulu.fi
Online search trends can predict urban mobility patterns. This study shows that analyzing search keywords alongside mobility data reveals insights into pedestrian traffic and community behavior, using online activity as a proxy for offline actions.
Area of Science:
- Urban studies
- Computational social science
- Data science
Background:
- Digital mobility traces offer new insights into collective human behavior.
- Online behavioral data (e.g., Twitter) has successfully predicted real-world phenomena.
- Urban mobility studies can benefit from novel data sources and analytical approaches.
Purpose of the Study:
- To investigate if online behavior can serve as a proxy for urban mobility.
- To correlate city-scale urban traffic patterns with online search trends.
- To develop a method for uncovering keywords that describe pedestrian traffic locations.
Main Methods:
- Analysis of a 3-year urban mobility dataset.
- Correlation of traffic patterns with online search trends.
- Development and application of the Location Archetype Keyword Extraction (LAKE) approach.
Main Results:
- The LAKE approach successfully uncovers semantically relevant keywords for urban locations.
- A significant relationship is demonstrated between online search trends and offline pedestrian traffic.
- Online search keywords act as a practical proxy for understanding community-level behavior.
Conclusions:
- Online behavior, specifically search trends, can effectively proxy for urban mobility.
- The LAKE method provides a novel way to analyze and understand community-level dynamics.
- Integrating online and offline data enhances the study of collective human behavior in cities.
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