192 citations · 223 across the 6 of their papers we have counts for
4 papers · 1 filter
Contact Tracing over Uncertain Indoor Positioning Data (Extended Version)
Tiantian Liu, Huan Li, Hua Lu +2
Pandemics often cause dramatic losses of human lives and impact our societies in many aspects such as public health, tourism, and economy. To contain the spread of an epidemic like…
Data Imputation for Sparse Radio Maps in Indoor Positioning (Extended Version)
Xiao Li, Huan Li, Harry Kai-Ho Chan +2
Indoor location-based services rely on the availability of sufficiently accurate positioning in indoor spaces. A popular approach to positioning relies on so-called radio maps that…
Towards Crowd-aware Indoor Path Planning (Extended Version)
Tiantian Liu, Huan Li, Hua Lu +2
Indoor venues accommodate many people who collectively form crowds. Such crowds in turn influence people's routing choices, e.g., people may prefer to avoid crowded rooms when walk…
An Experimental Analysis of Indoor Spatial Queries: Modeling, Indexing, and Processing
Tiantian Liu, Huan Li, Hua Lu +2
Indoor location-based services (LBS), such as POI search and routing, are often built on top of typical indoor spatial queries. To support such queries and indoor LBS, multiple tec…