![THE [FOOD] GET[S] A 5 STAR FROM
ME, BUT, SADLY, THE SERVICE
BRINGS IT DOWN TO A 3.
Yelp Review
THE PROBLEM](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Yelp Refiner Lightning Talk
- 1. YELP REVIEWS MAKING HEADS OR TAILS OF
- 2. THE [FOOD] GET[S] A 5 STAR FROM ME, BUT, SADLY, THE SERVICE BRINGS IT DOWN TO A 3. Yelp Review THE PROBLEM
- 4. GOAL MAKE YELP MORE USEFUL
- 5. GOAL MAKE YELP MORE USEFUL ▸ More clarity
- 6. GOAL MAKE YELP MORE USEFUL ▸ More clarity ▸ Easier to make decisions
- 7. GOAL MAKE YELP MORE USEFUL ▸ More clarity ▸ Easier to make decisions ▸ Less scrolling
- 8. GOAL MAKE YELP MORE USEFUL ▸ More clarity ▸ Easier to make decisions ▸ Less scrolling
- 9. DATASET YELP DATASET CHALLENGE ▸2.7M Reviews ▸649K Tips ▸687K Users ▸86K Businesses
- 10. PREDICT CATEGORIES + SENTIMENTS MODEL GOAL:
- 12. OUTPUTS
- 14. OUTPUTS ▸ “Topics” ▸ Top words in each topic Car, vehicle, tires, drive, …
- 15. OUTPUTS ▸ “Topics” ▸ Top words in each topic Car, vehicle, tires, drive, … ▸ Topic proportions for each “document” 40% Topic 1, 30% Topic 2, 15% Topic 3, …
- 16. MODIFICATIONS
- 17. MODIFICATIONS ▸ “Codewords” Positive and negative adjectives (nltk) (Jack Linshi, 2014 Yelp Dataset Challenge winner)
- 18. MODIFICATIONS ▸ “Codewords” Positive and negative adjectives (nltk) (Jack Linshi, 2014 Yelp Dataset Challenge winner) ▸ “Foodwords” Food-related nouns
- 19. TEST RESTAURANTS FOUR RESTAURANTS Restaurant 1 Restaurant 2 Restaurant 3 Restaurant 4 Mexican Italian Mexican Pizza 4.2 Stars 3.0 Stars 3.0 Stars 3.0 Stars 49 reviews 19 reviews 20 reviews 20 reviews
- 20. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4 78% 58% 65% 50% 57% 47% 55% 40%
- 21. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 22. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 23. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 24. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 25. MANUAL CODING “GOOD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 26. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4 20% 26% 35% 35% 20% 32% 25% 35%
- 27. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 28. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 29. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 30. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 31. MANUAL CODING “BAD FOOD” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 32. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4 39% 43% 26%16% 40% 20% 10% 15%
- 33. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 34. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 35. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 36. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 37. MANUAL CODING “GOOD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 38. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4 4% 4% 21%16% 10% 15% 15% 25%
- 39. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 40. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 41. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 42. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 43. MANUAL CODING “BAD SERVICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 44. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4 0% 18% 11%11% 5% 15% 5% 15%
- 45. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 46. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 47. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 48. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4
- 49. MANUAL CODING “BAD PRICE” REVIEWS LDA CODING Rest 1 Rest 2 Rest 3 Rest 4