1. Big Data Trends in the Google Era Application to Greek Politics Business and Environmental Technology Lab Environmental Engineering Department, Democritus University of Thrace Amaryllis Mavragani & Konstantinos Tsagarakis

2. Big Data  Large volumes (growing exponentially)  Wide range of data sets  High processing speed

3. Google Tools  Google Trends  Google Correlate  Keyword Planner

4. Google Tools Are these tools credible enough for academic research? The answer seems to be positive

5. Google Tools Many published papers using Google Trends Scientific fields include:  Economics and Finance  Medicine  Behavior  Social Sciences

6. Aims & Scope We use these Google Tools to look into specific terms in greek politics

7. Google Trends  Keyword search  Select time period  Select location (Country/Worldwide) Outputs:  A ‘What’s Trending’ graph  Breakdown by City or Region  Related Searches – Breakdown by Top & Rising

8. Grexit A well-known term derived by the words ‘Greece’ & ‘Exit’ i.e. Greece exiting Euro

9. Google Trends

10. Default The greek word for default is “ Χρεοκοπία ”, though very commonly misspelled as “ Χρεωκοπία ”

11. Default

12. Google Trends

13. Different Spellings

14. Google Trends

15.  Noisy Data  Varoufakis: Greek Economics Minister  Incident with video with middle finger  Not clear if real or fake

16. Google Trends

18. Google Trends requires careful use and analysis  Normalized values Differences in results:  Misspelling  Use or not of accents

19. Google Correlate Keyword search Outputs:  Keyword’s correlation with other words or phrases  Line Chart  Scatter Plot

20. Google Correlate

25.  Odd correlations  Upload own time series  Instant correlation results  Line Chart & Scatter Plot

26. Keyword Planner  Keyword search  Breakdown by Device  Breakdown by Location

27. Keyword Planner

29.  Absolute volumes of searches  Breakdown by device allows further analysis  Only goes two years back

30. Conclusions Google tools  Easy  Fast  Accessible

31. Conclusions Google tools  Careful analysis  Languages  Misspelling  Accents  Odd correlations

32. Thank you