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Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt

4 February 2014

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Politicians and the media

ˆ

Mutual interdependence

ˆ

Politicians need the media for outreach

ˆ

Journalists need politicians as sources

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Media as a political institution

ˆ
ˆ

Cook 2005
Media as a coherent institution
ˆ

ˆ

Across organizations, formats, time

Media as a political institution
ˆ
ˆ

ˆ →

Media show a 'distorted' picture of politics
The distortion has policy consequences

What picture do the media show?

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Quotes as data: Politicians in the media

ˆ

Political supply:
ˆ
ˆ
ˆ

ˆ

Reach voters
Frame issues
Communicate positions

Journalistic demand:
ˆ
ˆ

Source/provenance of information
Relevance of news

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Research Questions

ˆ

Which politicans are quoted the most?

ˆ

Are media quotes similar to parliamentary discourse?

ˆ

Does this depend on party, function, and election cycle?

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Extracting Quotes: Method
ˆ

Identify politicians
ˆ
ˆ
ˆ

ˆ

Keyword based matches
Anaphora resolution
Precision: 100%, Recall: 73%

Extract quote
ˆ
ˆ
ˆ
ˆ

Syntactic parse of sentences
Rule-based graph transformation
Extracts source, quote pairs
Precision: 86%, recall: 82%

http://www.kenbenoit.net/
new-directions-in-analyzing-text-as-data-workshop-2013/

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Bravoure maakt plaats voor deemoedigheid
Korte tijd later verschijnt Samsom. Sinds zes uur heeft hij met
zijn geestverwanten gesproken. 'Ik heb goedkeuring van de
fractie om verder te praten met de VVD', zegt hij. Aan de
andere kant van het Kamergebouw zijn de liberalen een paar
tellen eerder naar buiten gekomen. Daar zegt fractieleider
Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat
klinkt dan toch weer omineus, maar Samsom reageert
desgevraagd: 'Ja, dat wil ik ook.'
(de Volkskrant, 13 November 2013)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Bravoure maakt plaats voor deemoedigheid
Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij
met zijn geestverwanten gesproken. 'Ik heb goedkeuring van
de fractie om verder te praten met de VVD ', zegt hij. Aan de
andere kant van het Kamergebouw zijn de liberalen een paar
tellen eerder naar buiten gekomen. Daar zegt fractieleider
Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat
klinkt dan toch weer omineus, maar Samsom reageert
desgevraagd: 'Ja, dat wil ik ook.'
(de Volkskrant, 13 November 2013)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Bravoure maakt plaats voor deemoedigheid
Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij
met zijn geestverwanten gesproken. ' Ik heb goedkeuring van
de fractie om verder te praten met de VVD ', zegt hij . Aan
de andere kant van het Kamergebouw zijn de liberalen een
paar tellen eerder naar buiten gekomen. Daar zegt fractieleider
Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat
klinkt dan toch weer omineus, maar Samsom reageert
desgevraagd: 'Ja, dat wil ik ook.'
(de Volkskrant, 13 November 2013)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Bravoure maakt plaats voor deemoedigheid
Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met
zijn geestverwanten gesproken. ' Ik heb goedkeuring van de
fractie om verder te praten met de VVD ', zegt hij . Aan de
andere kant van het Kamergebouw zijn de liberalen een paar tellen
eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat
hij terug wil naar de onderhandelingstafel . Dat klinkt dan toch
weer omineus, maar Samsom reageert desgevraagd:
'Ja, dat wil ik ook.'
(de Volkskrant, 13 November 2013)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Results

ˆ
ˆ

Who is quoted the most?
How are 'mentions' and 'quotes' related?

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Hits and quotes by party (Campaign)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Hits and quotes by party (Formation)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Hits and quotes by party (Rutte II)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Measuring the content of quotes

ˆ
ˆ
ˆ

What do politicians say in their quotes?
Are media quotes similar to parliamentary discourse?
Does this dier per party, period

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Bravoure maakt plaats voor deemoedigheid
Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met zijn
geestverwanten gesproken. ' Ik heb goedkeuring van de
fractie om verder te praten met de VVD ', zegt hij . Aan de andere
kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar
buiten gekomen. Daar zegt fractieleider Zijlstra dat
hij terug wil naar de onderhandelingstafel . Dat klinkt dan toch weer
omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.'

PvdA

Ik heb goedkeuring van de fractie om verder te praten met de
VVD Ja dat wil ik ook
Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

PVV (during campaign)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

PvdD (during formation)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

SGP (during campaign)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

VVD

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

PvdA

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Latent Dirichlet Allocation

ˆ

Automatic bag-of-words based cluster method
Cluster words into N 'topics'
Each document has multiple clusters
Each cluster has multiple words

ˆ

Topics are a mix of issues, framing, and langauge use

ˆ
ˆ
ˆ

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

15: Housing

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

1: Tax service / problems

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

12: Procedural (parliament)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

3: Language use

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Correlation between Media and Parliamentary
discourse
ˆ
ˆ
ˆ
ˆ

Compare use of LDA topics per party
Media: 7929 quotes (from 22.891 articles)
Parliament: 9760 speeches
Assumption:
ˆ
ˆ

Parliamentary discourse is 'political logic'
Media logic distorts this into quotes
ˆ Politicians adapt their statements
ˆ Journalists select specic quotes

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Correlation media:parliament per period

Period
Prelude
Campaign
Formation
Rutte II

Media: Platform or Power Broker?

All Substantive
-0.26
-0.15
-0.20
-0.25

Wouter van Atteveldt

-0.01
0.04
-0.01
0.12

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Correlations media:parliament per period

Party
VVD
PvdA
D66
CDA
GL
SP
SGP
CU
50plus
PvdD
PVV
Media: Platform or Power Broker?

Correlation
-0.32
-0.25
-0.21
-0.06
-0.05
-0.03
0.04
0.08
0.22
0.51
0.56
Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Correlations per period per party

Party

Total Prelude Campaign Formation Normal

VVD
PvdA
D66
CDA
GL
SP
SGP
CU
50plus
PvdD
PVV

-0.32
-0.25
-0.21
-0.06
-0.05
-0.03
0.04
0.08
0.22
0.51
0.56

Media: Platform or Power Broker?

-0.24
-0.42
-0.24
-0.27
-0.09
-0.21
0.26
0.08
0.26
0.28
0.50

-0.36
-0.07
0.27
0.16
0.14
-0.02
-0.25
0.16
-0.13
0.45
0.06
Wouter van Atteveldt

-0.14
0.03
-0.29
-0.07
-0.14
0.03
0.13
-0.17
0.14
-0.11
0.49

-0.27
-0.18
-0.05
0.26
0.05
0.15
0.05
0.09
0.18
0.54
0.51

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Conclusions
ˆ
ˆ

Quote extraction and LDA are useful methods
Mentions and quotes are separate measures of power and
interest
ˆ
ˆ

Mentions largely follow political power, less skewed in
elections
Quotes show mix of supply and demand
ˆ Well quoted: relevant but also scandal
ˆ Less quoted: irrelevant but also during formation

ˆ

Measuring 'distortion' gives interesting results
ˆ
ˆ
ˆ

Catch-all more distorted than issue-parties
Coalition more distorted than opposition
'Language use' more 'parliamentary' during campaign

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt
Platform or Power Broker?

Extracting Quotes

What do they say?

Conclusion

Thanks:

ˆ
ˆ
ˆ

Kasper Welbers, for LDA and vocabulary R code
Nel Ruigrok, for help with substantive analysis
UvA xTas for NLP framework (De Rijke, De Rooij,
Buitinck)

Media: Platform or Power Broker?

Wouter van Atteveldt

http://www.slideshare.net/vanatteveldt

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Media: Platform or Power Broker (Etmaal vd Communicatiewetenschap 2014)

  • 1. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt 4 February 2014 Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 2. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Politicians and the media ˆ Mutual interdependence ˆ Politicians need the media for outreach ˆ Journalists need politicians as sources Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 3. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Media as a political institution ˆ ˆ Cook 2005 Media as a coherent institution ˆ ˆ Across organizations, formats, time Media as a political institution ˆ ˆ ˆ → Media show a 'distorted' picture of politics The distortion has policy consequences What picture do the media show? Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 4. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Quotes as data: Politicians in the media ˆ Political supply: ˆ ˆ ˆ ˆ Reach voters Frame issues Communicate positions Journalistic demand: ˆ ˆ Source/provenance of information Relevance of news Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 5. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Research Questions ˆ Which politicans are quoted the most? ˆ Are media quotes similar to parliamentary discourse? ˆ Does this depend on party, function, and election cycle? Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 6. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Extracting Quotes: Method ˆ Identify politicians ˆ ˆ ˆ ˆ Keyword based matches Anaphora resolution Precision: 100%, Recall: 73% Extract quote ˆ ˆ ˆ ˆ Syntactic parse of sentences Rule-based graph transformation Extracts source, quote pairs Precision: 86%, recall: 82% http://www.kenbenoit.net/ new-directions-in-analyzing-text-as-data-workshop-2013/ Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 7. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Bravoure maakt plaats voor deemoedigheid Korte tijd later verschijnt Samsom. Sinds zes uur heeft hij met zijn geestverwanten gesproken. 'Ik heb goedkeuring van de fractie om verder te praten met de VVD', zegt hij. Aan de andere kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat klinkt dan toch weer omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.' (de Volkskrant, 13 November 2013) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 8. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Bravoure maakt plaats voor deemoedigheid Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met zijn geestverwanten gesproken. 'Ik heb goedkeuring van de fractie om verder te praten met de VVD ', zegt hij. Aan de andere kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat klinkt dan toch weer omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.' (de Volkskrant, 13 November 2013) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 9. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Bravoure maakt plaats voor deemoedigheid Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met zijn geestverwanten gesproken. ' Ik heb goedkeuring van de fractie om verder te praten met de VVD ', zegt hij . Aan de andere kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat hij terug wil naar de onderhandelingstafel. Dat klinkt dan toch weer omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.' (de Volkskrant, 13 November 2013) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 10. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Bravoure maakt plaats voor deemoedigheid Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met zijn geestverwanten gesproken. ' Ik heb goedkeuring van de fractie om verder te praten met de VVD ', zegt hij . Aan de andere kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat hij terug wil naar de onderhandelingstafel . Dat klinkt dan toch weer omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.' (de Volkskrant, 13 November 2013) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 11. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Results ˆ ˆ Who is quoted the most? How are 'mentions' and 'quotes' related? Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 12. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Hits and quotes by party (Campaign) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 13. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Hits and quotes by party (Formation) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 14. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Hits and quotes by party (Rutte II) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 15. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Measuring the content of quotes ˆ ˆ ˆ What do politicians say in their quotes? Are media quotes similar to parliamentary discourse? Does this dier per party, period Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 16. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Bravoure maakt plaats voor deemoedigheid Korte tijd later verschijnt Samsom . Sinds zes uur heeft hij met zijn geestverwanten gesproken. ' Ik heb goedkeuring van de fractie om verder te praten met de VVD ', zegt hij . Aan de andere kant van het Kamergebouw zijn de liberalen een paar tellen eerder naar buiten gekomen. Daar zegt fractieleider Zijlstra dat hij terug wil naar de onderhandelingstafel . Dat klinkt dan toch weer omineus, maar Samsom reageert desgevraagd: 'Ja, dat wil ik ook.' PvdA Ik heb goedkeuring van de fractie om verder te praten met de VVD Ja dat wil ik ook Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 17. Platform or Power Broker? Extracting Quotes What do they say? Conclusion PVV (during campaign) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 18. Platform or Power Broker? Extracting Quotes What do they say? Conclusion PvdD (during formation) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 19. Platform or Power Broker? Extracting Quotes What do they say? Conclusion SGP (during campaign) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 20. Platform or Power Broker? Extracting Quotes What do they say? Conclusion VVD Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 21. Platform or Power Broker? Extracting Quotes What do they say? Conclusion PvdA Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 22. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Latent Dirichlet Allocation ˆ Automatic bag-of-words based cluster method Cluster words into N 'topics' Each document has multiple clusters Each cluster has multiple words ˆ Topics are a mix of issues, framing, and langauge use ˆ ˆ ˆ Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 23. Platform or Power Broker? Extracting Quotes What do they say? Conclusion 15: Housing Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 24. Platform or Power Broker? Extracting Quotes What do they say? Conclusion 1: Tax service / problems Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 25. Platform or Power Broker? Extracting Quotes What do they say? Conclusion 12: Procedural (parliament) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 26. Platform or Power Broker? Extracting Quotes What do they say? Conclusion 3: Language use Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 27. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Correlation between Media and Parliamentary discourse ˆ ˆ ˆ ˆ Compare use of LDA topics per party Media: 7929 quotes (from 22.891 articles) Parliament: 9760 speeches Assumption: ˆ ˆ Parliamentary discourse is 'political logic' Media logic distorts this into quotes ˆ Politicians adapt their statements ˆ Journalists select specic quotes Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 28. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Correlation media:parliament per period Period Prelude Campaign Formation Rutte II Media: Platform or Power Broker? All Substantive -0.26 -0.15 -0.20 -0.25 Wouter van Atteveldt -0.01 0.04 -0.01 0.12 http://www.slideshare.net/vanatteveldt
  • 29. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Correlations media:parliament per period Party VVD PvdA D66 CDA GL SP SGP CU 50plus PvdD PVV Media: Platform or Power Broker? Correlation -0.32 -0.25 -0.21 -0.06 -0.05 -0.03 0.04 0.08 0.22 0.51 0.56 Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 30. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Correlations per period per party Party Total Prelude Campaign Formation Normal VVD PvdA D66 CDA GL SP SGP CU 50plus PvdD PVV -0.32 -0.25 -0.21 -0.06 -0.05 -0.03 0.04 0.08 0.22 0.51 0.56 Media: Platform or Power Broker? -0.24 -0.42 -0.24 -0.27 -0.09 -0.21 0.26 0.08 0.26 0.28 0.50 -0.36 -0.07 0.27 0.16 0.14 -0.02 -0.25 0.16 -0.13 0.45 0.06 Wouter van Atteveldt -0.14 0.03 -0.29 -0.07 -0.14 0.03 0.13 -0.17 0.14 -0.11 0.49 -0.27 -0.18 -0.05 0.26 0.05 0.15 0.05 0.09 0.18 0.54 0.51 http://www.slideshare.net/vanatteveldt
  • 31. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Conclusions ˆ ˆ Quote extraction and LDA are useful methods Mentions and quotes are separate measures of power and interest ˆ ˆ Mentions largely follow political power, less skewed in elections Quotes show mix of supply and demand ˆ Well quoted: relevant but also scandal ˆ Less quoted: irrelevant but also during formation ˆ Measuring 'distortion' gives interesting results ˆ ˆ ˆ Catch-all more distorted than issue-parties Coalition more distorted than opposition 'Language use' more 'parliamentary' during campaign Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt
  • 32. Platform or Power Broker? Extracting Quotes What do they say? Conclusion Thanks: ˆ ˆ ˆ Kasper Welbers, for LDA and vocabulary R code Nel Ruigrok, for help with substantive analysis UvA xTas for NLP framework (De Rijke, De Rooij, Buitinck) Media: Platform or Power Broker? Wouter van Atteveldt http://www.slideshare.net/vanatteveldt