TwiNews: Detect local user
interests in Twitter to re-
rank news
Xin Shuai
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Top ranked
news
may not satisfy
all users
from different
geographical
locations!
Tuesday, October 8, 2013
Not
relevant to
China!
Tuesday, October 8, 2013
Word Closeness Local User Interests
Tuesday, October 8, 2013
How to detect the local user
interests given a news query?
Tuesday, October 8, 2013
How to detect the local user
interests given a news query?
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Can we provide localized news
ranking for users by leveraging
geographical tweets?
Tuesday, October 8, 2013
Tuesday, October 8, 2013
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
Tuesday, October 8, 2013
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
tweet 1
tweet 2
tweet n
...
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
tweet 1
tweet 2
tweet n
...
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
tweet 1
tweet 2
tweet n
...
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
tweet 1
tweet 2
tweet n
...
LDA
topic model
topic 1
technology:
mobile
iphone
facebook
topic 2
economy:
market
stock
investor
tweet 1
tweet 2
tweet n
...
A/B Testing
TwiNews
30 queries, 2 weeks
100 turkers from CA & NY
+3%
+7%
t-test: p < 0.05
A
B
Tuesday, October 8, 2013
GibbsLDA++
Tuesday, October 8, 2013
localized news ranking
localized user interests
from Twitter
Tuesday, October 8, 2013
localized news ranking localized targeted advertising
localized user interests
from Twitter
Tuesday, October 8, 2013
localized news ranking localized targeted advertising
localized deal recommendation
localized user interests
from Twitter
...
localized news ranking localized targeted advertising
localized deal recommendation
localized user interests
from Twitter
...
Xin Shuai
Tuesday, October 8, 2013
LDA topic modeling
LDA (Latent Dirichlet Allocation)
Tuesday, October 8, 2013
LDA topic modeling
LDA (Latent Dirichlet Allocation)
topic 1:
mobile
iphone
facebook
ipad
topic 2:
market
stock
index
inve...
Amazon Mechanical Turk
Price: eleven cents/HITS
Total Cost: over 200 dollars
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Tuesday, October 8, 2013
Tuesday, October 8, 2013
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Insight demo

  1. 1. TwiNews: Detect local user interests in Twitter to re- rank news Xin Shuai Tuesday, October 8, 2013
  2. 2. Tuesday, October 8, 2013
  3. 3. Tuesday, October 8, 2013
  4. 4. Top ranked news may not satisfy all users from different geographical locations! Tuesday, October 8, 2013
  5. 5. Not relevant to China! Tuesday, October 8, 2013
  6. 6. Word Closeness Local User Interests Tuesday, October 8, 2013
  7. 7. How to detect the local user interests given a news query? Tuesday, October 8, 2013
  8. 8. How to detect the local user interests given a news query? Tuesday, October 8, 2013
  9. 9. Tuesday, October 8, 2013
  10. 10. Tuesday, October 8, 2013
  11. 11. Can we provide localized news ranking for users by leveraging geographical tweets? Tuesday, October 8, 2013
  12. 12. Tuesday, October 8, 2013
  13. 13. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor Tuesday, October 8, 2013
  14. 14. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor tweet 1 tweet 2 tweet n topic 1 topic 2 Tuesday, October 8, 2013
  15. 15. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor tweet 1 tweet 2 tweet n topic 1 topic 2 local topical distribution + + + technology (topic 1) Tuesday, October 8, 2013
  16. 16. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor tweet 1 tweet 2 tweet n topic 1 topic 2 local topical distribution + + + technology (topic 1) Tuesday, October 8, 2013
  17. 17. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor tweet 1 tweet 2 tweet n topic 1 topic 2 news 1 news 2 news 3 technology (topic 1) local topical distribution + + + technology (topic 1) Tuesday, October 8, 2013
  18. 18. LDA topic model topic 1 technology: mobile iphone facebook topic 2 economy: market stock investor tweet 1 tweet 2 tweet n topic 1 topic 2 news 1 news 2 news 3 technology (topic 1) local topical distribution + + + technology (topic 1) cosine similarity cosine similarity cosine similarity Tuesday, October 8, 2013
  19. 19. A/B Testing TwiNews 30 queries, 2 weeks 100 turkers from CA & NY +3% +7% t-test: p < 0.05 A B Tuesday, October 8, 2013
  20. 20. GibbsLDA++ Tuesday, October 8, 2013
  21. 21. localized news ranking localized user interests from Twitter Tuesday, October 8, 2013
  22. 22. localized news ranking localized targeted advertising localized user interests from Twitter Tuesday, October 8, 2013
  23. 23. localized news ranking localized targeted advertising localized deal recommendation localized user interests from Twitter Tuesday, October 8, 2013
  24. 24. localized news ranking localized targeted advertising localized deal recommendation localized user interests from Twitter localized music/movie recommendation Tuesday, October 8, 2013
  25. 25. Xin Shuai Tuesday, October 8, 2013
  26. 26. LDA topic modeling LDA (Latent Dirichlet Allocation) Tuesday, October 8, 2013
  27. 27. LDA topic modeling LDA (Latent Dirichlet Allocation) topic 1: mobile iphone facebook ipad topic 2: market stock index investor topic 3: .... .... .... Tuesday, October 8, 2013
  28. 28. Amazon Mechanical Turk Price: eleven cents/HITS Total Cost: over 200 dollars Tuesday, October 8, 2013
  29. 29. Tuesday, October 8, 2013
  30. 30. Tuesday, October 8, 2013
  31. 31. Tuesday, October 8, 2013
  32. 32. Tuesday, October 8, 2013

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