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