~/talk

When Sharing Economy Meets IoT: Towards Fine-grained Urban Air quality Monitoring through Mobile ...

on YouTube 06m
Talkat UbiComp 2021 · 2021-09-21..09-26· [iot, data-engineering]

speakers

name:Di Wu
links:none on file
name:Tao Xiao
links:none on file
name:Xuewen Liao
links:none on file
name:Jie Luo
links:none on file
name:Chao Wu
links:none on file
name:Shigeng Zhang
links:none on file
name:Yong Li
links:none on file
name:Yike Guo
links:none on file

resources

video:https://youtu.be/BdTTNVoXazk
slides:none on file

summary

UbiAir mounts an IoT sensor box on shared bikes, collects >100k PM2.5 readings from 36 students over 18 days, and splits the area into fine grids. It applies hardware and software calibration, then uses Bayesian compressive sensing and an adaptive projection strategy to reconstruct missing grid values, yielding smoother maps and lower reconstruction error than three baseline methods. Data collection is steered by red envelope incentives placed at the most informative grid cells.

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