24. research questions
how can (Twitter) content contributed around
large-scale broadcast news events inform
journalistic inquiry?
what kinds of insights and analyses are
enabled through visual analytic tools?
[with postdoctoral fellow Nick Diakopoulos]
26. supporting analysis
direct attention to relevant information
automatic content analysis for filtering
– relevance
– uniqueness / novelty
– sentiment
– keyword extraction
27.
28.
29. how to evaluate?
directly evaluate the output of the algorithms
(quantitative)
deep, extensive evaluation of users’ interaction
with the system (qualitative)
read more: Olsen (UIST ’07)
Naaman (MTAP ’12)
30. Vox evaluation goals
• How effective for generating story ideas?
• What kind of insights/analysis are supported?
• Shortcomings and how features are used?
31. Vox evaluation: framing
• “develop two story pitches for the event”
• open-ended questionnaires, content analysis
• 18 participants
32. highlights
Vox Civitas
VAST 2010
SRSR
Multiplayer
33. research question
how can we help a journalists identify reliable,
knowledgeable sources for remote breaking
news events?
[with postdoctoral fellows Nick Diakopoulos,
Mummun De Choudhury]
55. experience
Her story allows us to see what was lost, [and]
gained, in the political, economic and social
transformations of the 18th and 19th centuries.
