finding ostriches in the courtroom
DESCRIPTION
Introductory slides on my research projects related to content analysis linguistic visualization from Transparent Text 2009TRANSCRIPT
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Finding Ostriches in the CourtroomEnabling Insight with Linguistic Visualization
Christopher CollinsUniversity of Toronto (to Dec 2009)
University of Ontario Institute of Technology (Jan 2010-)
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Target Audience
Real-time Single Document
Discrete Corpus
Continuous Corpus
Linguistic
NLP
CL
General
Public
Domain
ExpertsLanguage
Researchers
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Real-time Single Document
Discrete Corpus
Continuous Corpus
Linguistic
NLP
CL
Problem Areas
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Humans have reached
their cognitive capacity.
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Humans have reached
their cognitive capacity.
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Information is overwhelming
because of
the naïve manner
in which it is delivered.
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7
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External Cognition
• External cognition is the interaction
between internal and external
representations when performing cognitive
tasks.
• Computational offloading is the extent to
which external representations can reduce
the amount of cognitive effort to solve a
problem.
Yvonne Rogers, New Theoretical Approaches for Human-Computer Interaction, 2004.
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Document Visualization
Collins, C.; Carpendale, S.; Penn, G.
DocuBurst: Visualizing Document Content using Language Structure.
Proceedings of Eurographics/IEEE VGTC Symposium on Visualization, June, 2009.
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Mihalcea and Tarau, 2004Many Eyes Tag Cloud
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DocuBurst
absolute,noun,10
chair,noun,2
moment,noun,11
game,noun,30
reality,noun,3
take,verb,13
represent,verb,17
...
games�game
taken�take
game IS activity
chair IS furnitureWordNet
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U.S. Presidential Debates
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Collins, C.; Viégas, F.; Wattenberg, M.
Parallel Tag Clouds to Explore and Analyze Faceted Text Corpora.
To appear in Proc. IEEE Symposium on Visual Analytics Science & Technology (VAST), 2009.
Corpus Visualization
• Beyond similarity and clustering
– How do we discern differences within and between
document collections?
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Our Data: U.S. Federal Court Decisions
Data from public.resource.org
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Visualization Design
• Size = significance of
difference (G2 score)
• Order = alphabetic
• Edges = word occurring in
multiple columns
17
Patent Invention
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Ostriches in the 7th Circuit
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Highfalutin Judge Selya
furculum
impuissant
immurement
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Open APIs for data
NYT, Twitter, Google
Toolkits and APIs for
Visualization
Processing, Rafael,
Flare, Flash
?Open APIs for NLP
- Summarization
- Keyword extraction
- Sentiment analysis
Bridging the Linguistic Divide
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Visualization
Augments
Reading
www.christophercollins.ca