This signal uses a rank-1 approximation, from a nonnegative matrix factorization approach, to identify an underlying signal that best reconstructs all of: Delphi’s Doctor Visits (smoothed_adj_cli), Facebook Symptoms surveys (smoothed_cli), Facebook Symptoms in Community surveys (smoothed_hh_cmnty_cli), and Search Trends (smoothed_search) indicators. It does not include official reports (cases and deaths from the jhu-csse source). Higher values of the combined signal correspond to higher values of the other indicators, but the scale (units) of the combination is arbitrary. Also available without CTIS “Symptoms in Community” (smooth_CLI) indicator.
Additional Resource Information:
Data available via Epidata API: https://cmu-delphi.github.io/delphi-epidata/
- COVID-19
- —
Modeling results
—
- United States
- county,hrr,msa,state,hhs-region,nation
- 2020-04-06 00:00:00
- ########
- Daily
- Daily
All (ie all groups); NA
- No
*Fields with “—” indicate the center did not provide information at the time of the survey. Please see the resource URL or contact the center if you would like updated information on those fields.
No badges assigned.