Maja Rudolph
Structured Embedding Models for Grouped Data
Maja Rudolph, Francisco Ruiz, Susan Athey, David Blei
Neural Information Processing Systems http://nips.cc/
Structured Embedding Models for Grouped Data
Maja Rudolph, Francisco Ruiz, Susan Athey, David Blei
We study how the word usage of U.S. Congressional speeches varies across states and party affiliation, how words are used differently across sections of the ArXiv, and how the copurchase patterns of groceries can vary across seasons. Key to the success of our method is that the groups share statistical information. We develop two sharing strategies: hierarchical modeling and amortization. We demonstrate the benefits of this approach in empirical studies of speeches, abstracts, and shopping baskets.