The Signals and Noise: Actionable Information in Improvised Social Media Channels During a Disaster.
Xingsheng HeDi LuDrew MargolinMengdi WangSalma El IdrissiYu-Ru LinPublished in: WebSci (2017)
Keyphrases
- social media
- single channel
- low signal to noise ratio
- signal detection
- multi channel
- white noise
- biomedical signals
- noisy environments
- direct sequence spread spectrum
- frequency spectrum
- signal to noise ratio
- signal processing
- noise reduction
- received signal
- power spectrum
- random noise
- slowly varying
- independent component analysis
- social media data
- noisy data
- signal noise ratio
- short time fourier transform
- weak signal detection
- gaussian noise
- additive noise
- decision support system
- disaster response
- social media platforms
- disaster management
- bandpass
- spectral analysis
- noise model