I received my PhD in 2009 under the guidance of Padhraic Smyth. I don't actively maintain this webpage anymore, see my LinkedIn page for my current whereabouts.
Research Interests
Machine Learning, Data Mining, Information Retrieval, Topic Models
Publications
Combining Background Knowledge and Learned Topics [pdf]
Mark Steyvers, Chaitanya Chemudugunta, and Padhraic Smyth. Topics in Cognitive Science, 2009, to appear.
Learning Author-Topic Models from Text Corpora [pdf]
Michal Rosen-Zvi, Chaitanya Chemudugunta, Thomas Griffiths, Padhraic Smyth, and Mark Steyvers. ACM Transactions on Information Systems, 2009, to appear.
Combining Concept Hierarchies and Statistical Topic Models [pdf]
Chaitanya Chemudugunta, Padhraic Smyth, and Mark Steyvers. Conference on Information and Knowledge Management (CIKM), 2008.
Text Modeling using Unsupervised Topic Models and Concept Hierarchies [pdf|url]
Chaitanya Chemudugunta, Padhraic Smyth, and Mark Steyvers. ArXiv Technical Report, 2008.
Modeling Documents by Combining Semantic Concepts with Unsupervised Statistical Learning [pdf]
Chaitanya Chemudugunta, America Holloway, Padhraic Smyth, and Mark Steyvers. International Semantic Web Conference (ISWC), 2008.
Deterministic latent variable models and their pitfalls [pdf]
[Update 4/15/08: fixed typos in Equations 3.17 and 3.22]
Max Welling, Chaitanya Chemudugunta, and Nathan Sutter. SIAM International Conference on Data Mining (SIAM SDM), 2008.
Subject metadata enrichment using statistical topic models [pdf] (** shortlisted for the best paper award **)
David Newman, Kat Hagedorn, Chaitanya Chemudugunta, and Padhraic Smyth. Joint Conference on Digital Libraries (JDCL), 2007.
Modeling general and specific aspects of documents with a probabilistic topic model [pdf]
Chaitanya Chemudugunta, Padhraic Smyth, and Mark Steyvers. In: Advances in Neural Information Processing Systems (NIPS), 2007.
David Newman, Chaitanya Chemudugunta, Padhraic Smyth, and Mark Steyvers. Proceedings of the 12th ACM SIGKDD Conference (KDD), 2006.
Analyzing Entities and Topics in News Articles Using Statistical Topic Models [pdf]
David Newman, Chaitanya Chemudugunta, Padhraic Smyth, and Mark Steyvers. In LNCS -- IEEE International Conference on Intelligence and Security Informatics (ISI), 2006.
