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I am the Aravind K Joshi Term Assistant Professor in the Computer and Information Sciences Department at the University of Pennsylvania. I joined the department in the Fall of 2013. My research interests include statistical machine translation, data-driven paraphrasing, and crowdsourcing.

In 2014 I was named a Sloan Research Fellow. Here is a press release from Penn about my research and the research of the two other Penn faculty members who received the award.

I am the program co-chair for EMNLP 2015 in Lisbon. I am an action editor for the new journal Transactions of the ACL (TACL). I recently finished my terms on the editorial board of Computational Linguistics, and as the Chair of the NAACL Executive Board.

My research group released PPDB, the paraphrase database, a resource with 169 million paraphrase transformation rules.

We developed Joshua, an open source decoder for statistical machine translation, which uses synchronous context free grammars, and extracts linguistically informed translation rules.

Office: Levine 506
Office Hours: Thurs and Fri noon-1
Email: ccb@upenn.edu