Table 3 Parameters used in the proposed method
From: Real-time spatio-temporal event detection on geotagged social media
Method | Parameter = value |
|---|---|
Quad-tree | \({\theta }_{count}\)= 20 |
\({\theta }_{area}\) = 0.001 sqkm | |
Poisson model | T = 3 days |
\(\Delta T\) = 10 min | |
Signal threshold \(\tau _1\) =0.01 | |
Event detection threshold \(\tau _2\) =0.4 | |
Event signal decay coefficient \(\alpha\) = 0.5 | |
Event filtering | Duration threshold \({\theta }_{duration}\)= 50 minutes |
Minimum top entities \({\theta }_{entity}\) = 2 |