Date post: | 13-Jun-2015 |
Category: |
Data & Analytics |
Upload: | srastkar |
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MyReviewRater: Uncovering Helpful Amazon Reviews
Sarah Rastkar
Buying a New Product
Review Helpfulness
Review Helpfulness
Most reviews do not have enough user votes
Num
ber
of R
evie
ws
1,000,000
Between 5 and 10 Between 10 and 20 More than 20
750,000
500,000
250,000
Less than 5
Number of User Votes
~20000 reviews
Data
Electronicscategory
Model
reviews with at least 10 votes
labeling each review as'helpful' or 'not helpful'
a random forestbinary classifier
Validation
False Positive Rate
Tru
e P
osi
tive
Ra
te
ROC Curve (Area = 0.85)
Feature Importance
Similarity toProduct's
Description
Star Rating Overlapwith Title
Reviewer'sActivity
LengthReviewer'sHelpfulness
0
0.10
0.20
0.30
0.40
Review Length and Helpfulness
Length of review (number of words)
Helpfulness
less than 100 between100 & 200
between200 & 300
more than 300
Sarah Rastkar
Web Application – First Page
Web Application – Results Page