Friday, December 9, 2016 - 2:30pm
Location:100 Baker-Porter Hall
Speaker:Jacob Eisenstein Georgia Tech
ABSTRACT Language is socially situated: both what we say and what we mean depend on our identities, our interlocutors, and the communicative setting. The first generation of research in computational sociolinguistics focused on large-scale social categories, such as gender. However, many of the most socially salient distinctions are locally defined. Rather than attempt to annotate these social properties or extract them from metadata, we turn to social network analysis, which has been only lightly explored in traditional sociolinguistics. I will describe three projects at the intersection of language and social networks. First, I will show how unsupervised learning over social network labelings and text enables the induction of social meanings for address terms, such as "Ms" and "dude". Next, I will describe recent research that uses social network embeddings to induce personalized natural language processing systems for individual authors, improving performance on sentiment analysis and entity linking even for authors for whom no labeled data is available. Finally, I will describe how the spread of linguistic innovations can serve as evidence for sociocultural influence, using a parametric Hawkes process to model the features that make dyads especially likely or unlikely to be conduits for language change.
BIO Jacob Eisenstein is an Assistant Professor in the School of Interactive Computing at Georgia Tech. He works on statistical natural language processing, focusing on computational sociolinguistics, social media analysis, discourse, and machine learning. He is a recipient of the NSF CAREER Award, a member of the Air Force Office of Scientific Research (AFOSR) Young Investigator Program, and was a SICSA Distinguished Visiting Fellow at the University of Edinburgh. His work has also been supported by the National Institutes for Health, the National Endowment for the Humanities, and Google. Jacob was a Postdoctoral researcher at Carnegie Mellon and the University of Illinois. He completed his Ph.D. at MIT in 2008, winning the George M. Sprowls dissertation award. Jacob's research has been featured in the New York Times, National Public Radio, and the BBC. Thanks to his brief appearance in If These Knishes Could Talk, Jacob has a Bacon number of 2.