[Colloquium] REMINDER: TTIC Colloquium: Lyle Ungar, University of Pennsylvania
Dawn Ellis
dellis at ttic.edu
Fri Feb 27 06:39:43 CST 2015
When: Monday, March 2nd at 11am
Where: TTIC, 6045 S Kenwood Avenue, 5th Floor, Room 526
Who: Lyle Ungar, University of Pennsylvania
Title: Spectral Language Modeling
Low dimensional vector models of language have long been built using
Singular Value Decomposition (SVD) of word co-occurrence data. More
recently, such methods have been extended to build optimal linear
estimators of hidden state in probabilistic models such as HMMs and
PCFGs. These spectral methods are much faster than EM and come with
optimality proofs. We present a fast, clean spectral method for
estimating HMMs, sketch some generalizations of it, and show that these
spectral methods can be used to improve performance in a wide range
natural language processing (NLP) applications.
joint work with Paramveer Dhillon, Jordan Rodu, Mike Collins, and Dean
Foster
Hosts: David McAllester, mcallester at ttic.edu
<javascript:_e(%7B%7D,'cvml','mcallester at ttic.edu');> and Karen Livescu,
klivescu at ttic.edu <javascript:_e(%7B%7D,'cvml','klivescu at ttic.edu');>
--
*Dawn Ellis*
Administrative Coordinator,
Bookkeeper
773-834-1757
dellis at ttic.edu <javascript:_e(%7B%7D,'cvml','dellis at ttic.edu');>
TTIC
6045 S. Kenwood Ave.
Chicago, IL. 60637
--
*Dawn Ellis*
Administrative Coordinator,
Bookkeeper
773-834-1757
dellis at ttic.edu
TTIC
6045 S. Kenwood Ave.
Chicago, IL. 60637
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.cs.uchicago.edu/pipermail/colloquium/attachments/20150227/f5355d61/attachment.htm
More information about the Colloquium
mailing list