How Many Writers does the Prime Minister have for his Speeches?

After the speech, however, an Audio clip was leaked, allegedly of the PM taking advice on diction from his aides

• Does the Prime Minister consult his advisors on diction for every speech or for ones delivered during extraordinary circumstances only?
  
• From his advisors, does the PM rely more on his family members?
  
• Has the PM's reliance on certain family members and aides increased only recently, as his government has come under increasing fire for involvement in large scale corruption?
  
• Is it possible to obtain information of such collaborations for other speeches of the PM?

Using Traditional Journalism to identify if different authors are involved in the PM's speeches is likely to be:

• perilous
• time-consuming

Data Journalism, on the other hand, can attempt to answer this question relatively comfortably with:

• Stylistic Analysis/Stylometry

• Scrap Speech Data from the PM Office's website
  • English Speeches
  • Around 60 in total
• Clean Data
  • Semi-automatic
• Apply Stylometric Techniques
  • Various
  • Boostrap Consensus Network (due to Professor Eder)
  • Visualise
• Details included here

Different datasets genereted using:

• Parts of Speech (POS) Tagging
• Word Bigrams
• Character 4-grams

• Almost all analyses point to two separated clusters of speeches
• Does depend significantly on amount of data
• Indicates there may be two (or more) authors
• Blog post can be accessed here