290 likes | 530 Views
INTRODUCTION. Data-location-based social network data-cell phone dataThree aspect of human mobility -geographic movement -temporal dynamics -social network. 2. INTRODUCTION. Empirical findings-Observe the popular location-based social networkThe mobility model-a model of spati
E N D
1. Friendship and Mobility: User Movement InLocation-Based Social Networks Eunjoon Cho Seth A. Myers Jure Leskovec
Stanford University
??? 1
2. INTRODUCTION Data
-location-based social network data
-cell phone data
Three aspect of human mobility
-geographic movement
-temporal dynamics
-social network
2
3. INTRODUCTION Empirical findings
-Observe the popular location-based social network
The mobility model
-a model of spatial locations that a user regularly visits
-a model of temporal movement between these locations
-a model of movement that is influenced by the ties of the social network
3
4. CHARACTERISTICS OF CHECK-INS Gowalla
-2009/2~2010/10 , 6.4million(196,591 nodes, 950,327 edges)
Brightkite
-2008/4~2010/10 , 4 million(58,228 nodes, 214,078 edges)
Cellphone
-455 days , 900 million(2 million nodes and 4.5 million edges, both called each other at least five times (10 calls total)) 4
5. CHARACTERISTICS OF CHECK-INS Check-in behavior of users -how far from their homes users tend to travel