814 citations · 3.3k across the 73 of their papers we have counts for
8 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…
In-Network Distributed Solar Current Prediction
Elizabeth Basha, Raja Jurdak, Daniela Rus
Long-term sensor network deployments demand careful power management. While managing power requires understanding the amount of energy harvestable from the local environment, curre…
Genetic Programming for Smart Phone Personalisation
Philip Valencia, Aiden Haak, Alban Cotillon +1
Personalisation in smart phones requires adaptability to dynamic context based on user mobility, application usage and sensor inputs. Current personalisation approaches, which rely…
Affect Sensing on Smartphone - Possibilities of Understanding Cognitive Decline in Aging Population
Rajib Rana, John Reilly, Raja Jurdak +3
Due to increasing sensing capacity, smartphones offer unprecedented opportunity to monitor human health. Affect sensing is one such essential monitoring that can be achieved on sma…
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…
The Impact of Cost and Network Topology on Urban Mobility: A Study of Public Bicycle Usage in 2 U.S. Cities
Raja Jurdak
Understanding the drivers of urban mobility is vital for epidemiology, urban planning, and communication networks. Human movements have so far been studied by observing people's po…