research questions how can (Twitter) content contributed aroundlarge-scale broadcast news events informjournalistic inquiry?what kinds of insights and analyses areenabled through visual analytic tools?[with postdoctoral fellow Nick Diakopoulos]
designing for journalismdivergent points of viewnewsworthiness: surprising, unusual,extremes of positive / negative
supporting analysisdirect attention to relevant information automatic content analysis for ﬁltering – relevance – uniqueness / novelty – sentiment – keyword extraction
how to evaluate?directly evaluate the output of the algorithms(quantitative)deep, extensive evaluation of users’ interactionwith the system (qualitative) read more: Olsen (UIST ’07) Naaman (MTAP ’12)
Vox evaluation goals• How effective for generating story ideas?• What kind of insights/analysis are supported?• Shortcomings and how features are used?
Vox evaluation: framing• “develop two story pitches for the event”• open-ended questionnaires, content analysis• 18 participants
highlights Vox Civitas VAST 2010 SRSR Multiplayer
research question how can we help a journalists identify reliable,knowledgeable sources for remote breakingnews events? [with postdoctoral fellows Nick Diakopoulos, Mummun De Choudhury]