Using Amazon reviews and correlating with stock data for Apple and major competitors. Link to project report: http://goo.gl/l1YAJL

1. Apple iPhone Sentiment Analysis
IT 651
Candice Goodin
Ercan Komurcu
Joel Sop

2. Introduction
 Use Amazon review data
 4S, 5, 5S models
 Excluded 5C model
 Stock prices
 Apple, Samsung, Motorola Mobility, HTC, etc.
 Analyze sentiments over time
 Correlate with stock data
 Noted announcement and release dates of models as well for
correlation

3. Usefulness
 Anyone interested in technology, the iPhone or stock price
trends
 Apple themselves
 When to release or stop selling a phone model
 What customers like and don’t like about each model
 Apple’s major competitors
 When to release their own phones
 Investors
 When to buy and sell stock

4. Data Collection
 Decided on Amazon reviews
 Found Perl Script that extracted reviews
 Determined each product’s unique ID
 Input data into database
 Output as CSV file

5. Analysis
 Nvivo did not work for us
 Researched free/trial alternatives
 Semantria plug-in for Excel
 Provided sentiment analysis as well as themes and categories
 Found to be accurate ~70% of time
 Humans are only 80% accurate
 Visualize using Tableau
 Multiple chart options

6. Results
 Total Data Collected
 511 iPhone 4S
 392 iPhone 5
 377 iPhone 5S
 Overall sentiments positive
 Never more negative than positive
 Does not seem to trend in any specific direction

7. Total Sentiment OverTime

8. Total Sentiment OverTime w/ Important Dates
iPhone 5 iPhone 5S

9. Total Sentiment OverTime
iPhone 5SiPhone 5

10. Positive
54%
Negative
18%
Neutral
28%
Total Sentiment for all models

11. 4S Sentiment OverTime
iPhone 5 iPhone 5S

12. 5 Sentiment OverTime
iPhone 5S

13. 5S Sentiment OverTime

14. positive
52%
negative
21%
neutral
27%
iPhone 4S
Total Sentiment – Each Model
positive
52%
negative
17%
neutral
31%
iPhone 5
positive
57%negative
15%
neutral
28%
iPhone 5S

15. iPhone 4STheme Breakdown
26%
20%
20%
18%
16%
good condition
great phone
perfect condition
excellent condition
unlocked phone

16. iPhone 5Theme Breakdown
31%
24%
18%
15%
12%
battery life
Android phone
great
improvement
rear cameras
smart phone

17. iPhone 5STheme Breakdown
28%
24%18%
16%
14% finger print
scanner
battery life
screen size
fingerprint sensor
retina display

18. 0
100
200
300
400
500
600
700
800
900
Apple High
Google High
Samsung High
HTC High
iPhone 4S Release –Stock Prices

19. iPhone 4S Release –Sentiments

20. 0
100
200
300
400
500
600
700
800
900
9/4/2012
9/6/2012
9/8/2012
9/10/2012
9/12/2012
9/14/2012
9/16/2012
9/18/2012
9/20/2012
9/22/2012
9/24/2012
9/26/2012
9/28/2012
9/30/2012
10/2/2012
10/4/2012
10/6/2012
10/8/2012
10/10/2012
10/12/2012
10/14/2012
10/16/2012
10/18/2012
10/20/2012
10/22/2012
10/24/2012
10/26/2012
10/28/2012
10/30/2012
Apple High
Google High
Samsung High
HTC High
iPhone 5 Release – Stock Prices

21. iPhone 5 Release –Sentiments

22. 0
200
400
600
800
1000
1200
Apple High
Google High
Samsung High
HTC High
iPhone 5S Release – Stock Prices

23. iPhone 5S Release – Sentiments

24. Conclusion
 Overall Inconclusive
 Does not trend negative over time
 Subsequent releases do not show impact on sentiment
 No correlation with announcement, release and stock prices
 Bigger study with more data points for each may be more
conclusive