2. Me
๏ต Senior DBA at Wake County
๏ต 13 years
๏ต Code for Raleigh Brigade Captain
๏ต Business Analytics student @ Wake Tech
๏ต Lover of craft beer and Tracy โ not in that order
๏ต ChrisTheDBA โ Gmail, Github, Slack, Twitter
5. Chicago
๏ต Establishments that had previous critical or serious violations
๏ต Three-day average high temperature
๏ต Nearby garbage and sanitation complaints
๏ต The type of facility being inspected
๏ต Nearby burglaries
๏ต Whether the establishment has a tobacco license or has an incidental alcohol
consumption license
๏ต Length of time since last inspection
๏ต The length of time the establishment has been operating
๏ต Inspector assigned
12. Wake County
๏ต The results are inconclusive that average restaurant ratings may indicate how well
a restaurant performs during a food inspection administered by Wake County
Environmental Services.
๏ต Additionally, we see that restaurants with a higher amount of foodborne illness
flags (as derived from the text within a restaurant's reviews) tend to have lower
average restaurant ratings.
๏ต The results of this project only suggest that restaurant ratings may be correlated
with foodborne illness outbreaks. In order to further investigate a possible
association between restaurant reviews and foodborne illness outbreaks,
additional statistical and study design methods must be considered to improve
the validity and robustness of this project.
13. Wake County โ Next Steps
๏ต More Data
๏ต Additional review sources: Incorporate restaurant reviews from other sources in addition
to yelp.
๏ต Additional Restaurants: Include more than 200 restaurants in order to have a bigger
sample size.
๏ต Improve match rate between restaurant grade data and restaurant review data: Use
restaurant name and address.
๏ต Storage Solution for data โ Now using OpenDataSoft portal.
14. Wake County โ Next Steps
๏ต Refine foodborne illness flag (FBI) classification: Perform a more thorough literature
review to identify the best words to use for the FBI flag derivation.
15. Wake County โ Next Steps
๏ต Apply additional statistical methods and machine learning techniques:
๏ต Apply t-test/ANOVA to identify whether the difference in average restaurant rating is
statistically different between restaurant grade groups/fbi flag groups.
๏ต Explore the ability to prospectively predict foodborne illness outbreak or restaurant grade
given previous restaurant review ratings.