01

02

Suggestion

Missing Value in Business Attributes

> 50% Removal

<=50% Imputation

Normalized root mean squared error (NRMSE)

mean((X − X̂ )2 )var(X )

Business Attributes

K=3 K=5

Ontario in Canada

Positive Topic WordsEnvironment drink, bar, night, beer, table, look, menu

Service time, service, amaze, experience, staff, friendly, recommendFood dish, fry, sauce, chicken, taste, menu, delicious

Negative Topic WordsTable Availability table, wait, minutes, seat, sit, host, ask

Service Time time, service, wait, experience, staff, slow, longFood Flavor fry, taste, chicken, dish, menu, wing, sauce

Bartender Proficiency drink, bar, beer, night, look, friends, bartenderService Quality ask, server, tell, bill, manager, leave, waitress

Elite Years User Weight0 11 1.12 1.23 1.34 1.45 1.56 1.67 1.78 1.89 1.910 2.011 2.112 2.2

Frequency of Elite Years

years_elite

Frequency

0 2 4 6 8 10 12 14

05000

10000

15000

20000

Business topic j score =Wuseri

*Scoretopici

j

j=1

m

∑i=1

n

∑

Wuserii=1

n

∑

Business

Review 1𝑢":𝑤"

topic 1 S""

topic 2 𝑆"'

topic j 𝑆"(

Review i𝑢): 𝑤* topic j 𝑆)(

Business Name State Topic 1 PlaceRank

Topic 2 ServiceRank

Topic 3 MenuRank

Sparrow QC 66% 55% 71%

Words CategoryTopic 1 table, wait, minutes, ask, time, service, minutes, waitress PlaceTopic 2 drink, bar, night, beer, bartender, pay, leave ServiceTopic 3 fry, taste, chicken, dish, menu, service, burger Menu

https://ylingbfcalculator.shinyapps.io/Yelp_data_analysis/