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Johan Bollen is associate professor at the Indiana University School of In-formatics and Computing (2009-present). He was formerly a staff scientist at
 

Summary: Johan Bollen is associate professor at the Indiana University School of In-
formatics and Computing (2009-present). He was formerly a staff scientist at
the Los Alamos National Laboratory (2005-2009). His research takes place
at the intersection between informatics, computer science, network science,
social science, and informetrics. His present interests include the develop-
ment of quantitative tools for the assessment of scholarly impact from usage
data (MESUR project) and the study of social phenomena such as public
mood states and social contagion from large-scale online networking envi-
ronments.
NICO coffee hour will follow for questions, networking and collaboration.
http://www.northwestern.edu/nico
NICO is pleased to present:
Johan Bollen
January 19, 2011 | 12:00 to 01:00 P | Chambers Hall, Lower Level | 600 Foster Street
Refreshments served at 11:30 A
Measuring the Public Mood State from Large-Scale Microblogging
We perform a sentiment analysis of all public tweets broadcast by
Twitter users. For every day in the timeline, we extract six dimensions of
mood (tension, depression, anger, vigor, fatigue, confusion) using an
extended version of the Profile of Mood States (POMS), a well estab-

  

Source: Amaral, Luis A.N. - Department of Chemical and Biological Engineering, Northwestern University

 

Collections: Physics; Biology and Medicine