Post on 18-Feb-2017
Leveraging LDA to learn tweet topics
Terrible!! The worst flight ever! The pretzels and peanuts were bad
Airline tweets
Leveraging LDA to learn tweet topics
Terrible!! The worst flight ever! The pretzels and peanuts were bad
topic3
topic1
topic2
Latent Dirichlet
Allocation (LDA)
Airline tweets
WorstFailTerrible
Leveraging LDA to learn tweet topics
Terrible!! The worst flight ever! The pretzels and peanuts were bad
Airline tweets
Latent Dirichlet
Allocation (LDA)
topic3
topic1
topic2
WorstFailTerrible
Learning tweet topics using LDA
Good customer service
Using topics to estimate airline customer service
Topic 2
Tweets passing filter
Ranking airlines by Topic 2“bad customer service”
Predicted customer service matches recently published results
Source: 2015 J.D. Power North America AirlineSatisfaction Traditional Airline Rankings
J.D. Power rankings Ranking airlines by relativebad customer service
PredictionModel input
020
4060
8010
0
Varying µ−2
02
46
Popu
latio
n do
ublin
gs
DIP rate(doublings/h)
Time in erl (d)−0.04 0.00 0.04
020
4060
8010
0
0 5 10 15 20 25 30
−20
24
6Dens
ity 2µ
µ
0.5µ
0.5σ
σ
2σVarying σ
PredictionModel input
020
4060
8010
0
Varying µ
−20
24
6Po
pula
tion
doub
lings
DIP rate(doublings/h)
Time in erl (d)−0.04 0.00 0.04
020
4060
8010
0
0 5 10 15 20 25 30
−20
24
6Dens
ity 2µ
µ
0.5µ
0.5σ
σ
2σVarying σ
Peter Frick