Friday, September 30, 2016 - 2:30pm

Location:

100 Baker-Porter Hall

Speaker:

Cristian Danescu-Niculescu-Mizil Cornell University

Event Website:

https://www.lti.cs.cmu.edu/lti-colloquium-11700

Cristian Danescu-Niculescu-Mizil

Language and Social Dynamics*

BIO  Cristian Danescu-Niculescu-Mizil's research aims at developing computational frameworks that can lead to a better understanding of human social behavior, by unlocking the unprecedented potential of the large amounts of natural language data generated online.   He is the recipient of several awards, including the WWW 2013 Best Paper Award and a Yahoo! Key Scientific Challenges award, and his work has been featured in popular-media outlets such as the New Scientist, NBC's The Today Show, NPR and the New York Times.

ABSTRACT  More and more of life is now manifested online, and many of the digital traces that are left by human activity are in natural-language format.  In this talk I will show how exploiting these resources under a computational framework can bring a new understanding of online social dynamics;  I will be discussing three of my efforts in this direction.

The first project explores the relation between users and their community, as revealed by patterns of linguistic change.  I will show that users follow a determined life-cycle with respect to their susceptibility to adopt new community norms, and how this insight can be harnessed to predict how long a user will stay active in the community.

The second project proposes a computational framework for identifying and characterizing politeness, a central force shaping our communication behavior.  I will show how this framework can be used to study the social aspects of politeness, revealing new interactions with social status and community membership.

I will conclude by showing that conversational patterns can be predictive of the future evolution of a dyadic relationship.  In particular, I will characterize friendships that are unlikely to last and examine temporal patterns that foretell betrayal in the context of the Diplomacy strategy game.

This talk includes joint work with Jordan Boyd-Graber, Dan Jurafsky, Srijan Kumar, Jure Leskovec, Vlad Niculae, Christopher Potts, Moritz Sudhof and Robert West.

FACULTY HOST  Carolyn Rose

*Video of presentation only available to students regstrerd for 11-700 fall 2016. Andrew ID login.

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