571 citations · 693 across the 8 of their papers we have counts for
4 papers · 1 filter
Bounded Quadrant System: Error-bounded Trajectory Compression on the Go
Jiajun Liu, Kun Zhao, Philipp Sommer +3
Long-term location tracking, where trajectory compression is commonly used, has gained high interest for many applications in transport, ecology, and wearable computing. However, s…
Understanding Human Mobility from Twitter
Raja Jurdak, Kun Zhao, Jiajun Liu +3
Understanding human mobility is crucial for a broad range of applications from disease prediction to communication networks. Most efforts on studying human mobility have so far use…
Multi-scale Population and Mobility Estimation with Geo-tagged Tweets
Jiajun Liu, Kun Zhao, Saeed Khan +2
Recent outbreaks of Ebola and Dengue viruses have again elevated the significance of the capability to quickly predict disease spread in an emergent situation. However, existing ap…
Optimal Lévy-flight foraging in a finite landscape
Kun Zhao, Raja Jurdak, Jiajun Liu +5
We present a simple model to study Lévy-flight foraging in a finite landscape with countable targets. In our approach, foraging is a step-based exploratory random search process wi…