Brendan T. O'Connor
Last September I joined the
College of Information and Computer Sciences
at UMass Amherst
as an assistant professor.
I am also affiliated with the
Computational Social Science Institute,
the Centers for
Data Science and
Intelligent Information Retrieval, and
Machine Learning for Data Science lab.
For meetings, see my shared calendar for appointments --
this is not always up to date, but please consult it to help propose times that might work.
What can statistical text analysis tell us about society?
that can help answer social science
I'm interested in
statistical machine learning and
natural language processing,
especially when informed by or applied to areas like
political science or sociolinguistics.
My work often uses text data from news and social media.
Some areas of interest include:
- Interactive text data visualization (prev work)
- Regional dialects and language change in social media (prev work
- Social media sentiment compared to polls
- NLP for informal (sometimes called "noisy") language (prev work)
- Syntactic analysis, e.g. part of speech tagging, parsing
- Semantic/discourse analysis, e.g. coreference, events, entity modeling (e.g. movie character archetypes)
- Political event extraction from news (prev work)
- Joint statistical models of social factors and language
- Measuring sentiment, opinions, ideologies, worldviews from text
- Human-in-the-loop learning, e.g. simple syntax annotations, or Mechanical Turk crowdsourcing
- Probabilistic graphical models, latent variable models, Bayesian inference, sampling and optimization methods
See also my (oldish) research statement
or publications below.
If you are interested in getting involved in research, shoot me an email.
Keep in mind there is a rich set of faculty at UMass interested in
similar areas—from computational social science
to natural language processing.
See the CSSI website.
Also, I maintain
a list of computation and language researchers and courses at UMass.
My PhD was in the Machine Learning Department
Carnegie Mellon University's School of Computer Science, where I was a member of the
Noah's ARK research group.
I have also been a
Visiting Fellow at Harvard IQSS,
an intern on the Facebook Data Science team.
Before grad school,
I worked on crowdsourced annotations at CrowdFlower / Dolores Labs,
as well as
"semantic" search at Powerset.
I was an undergrad and masters student in the Stanford
Symbolic Systems Program (cognitive science, more or less).
Videos from past presentations
Selected recent publications
(See also Google Scholar.)
Other papers on my CV or
- MiTextExplorer: interactive exploration of text data and document covariates.
- TweetNLP: tokenization and part-of-speech tagging for Twitter.
- ARKref, a coreference resolution system.
- ParseViz - quick and dirty parse tree/dependency visualization via graphviz.
- tsvutils for tab-separated data processing
- Other misc utilities (commandline, R, Python...)
Recent and not-so-recent news
- Aug 19: Thesis defense.
- Mar 28: invited speaker, University of Michigan School of Information.
- Mar 26: invited speaker, NYU
Courant Institute and
Center for Data Science.
- Feb 26: invited speaker, Allen Institute for Artificial Intelligence.
- Feb 24-25: invited speaker, Information School, University of Washington. slides, abstract.
- Feb 14: invited speaker, Microsoft Research, New York City.
- Feb 10-11: invited speaker, Computer Science, UMass Amherst.
- Feb 7: invited speaker, Information Science, Cornell University.
- Jan 27: invited speaker, Toyota Technological Institute at Chicago, University of Chicago.
- Jan 15, 2014: invited speaker, Wharton Statistics, University of Pennsylvania. slides, abstract.
- Oct 9, 2013: invited talk at Univ. of Maryland at College Park,
CLIP Colloquium (host: Philip Resnik). [slides]
- Summer 2013: attended SOCS, NAACL, and ACL. See publications list for presentations/posters.
- Apr 9: Thesis proposal has been proposed: "Statistical Text Analysis for Social Science."
- Mar 22: invited speaker, Northeastern (Lazer Lab; host David Lazer)
- Feb 25: invited speaker, Columbia NLP group (abstract)
Elsewhere on the Internet
My PGP key
Random links: JK 1995
There are many Brendan O'Connors in the world.
If this is the wrong webpage, you may be interested in another Brendan O'Connor – for example,
My awesome sister, Maureen O'Connor, is a writer in New York.