P
Patrick Haffner
Researcher at AT&T Labs
Publications - 97
Citations - 57875
Patrick Haffner is an academic researcher from AT&T Labs. The author has contributed to research in topics: Support vector machine & Speaker recognition. The author has an hindex of 32, co-authored 97 publications receiving 42604 citations. Previous affiliations of Patrick Haffner include Nuance Communications & Carnegie Mellon University.
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Patent
Method and apparatus for providing fast kernel learning on sparse data
TL;DR: In this article, a method and apparatus based on transposition to speed up learning computations on sparse data are disclosed, where the method receives an support vector comprising at least one feature represented by one non-zero entry.
Journal ArticleDOI
Modifying boosted trees to improve performance on task 1 of the 2006 KDD challenge cup
TL;DR: The main modifications were changing the dependent variable in the training set to account for multiple PEs per patient, and incorporating neighborhood information through augmentation of the set of predictor variables, which resulted in measurable predictive improvement.
Proceedings ArticleDOI
Semantic data mining of short utterances
Lee Begeja,H. Drucker,David Crawford Gibbon,Patrick Haffner,Zhu Liu,Bernard S. Renger,Behzad Shahraray +6 more
TL;DR: This paper introduces a methodology for speech data mining along with the tools that the methodology requires and shows how they increase the productivity of the analyst who seeks relationships among the contents of multiple utterances and ultimately must link some newly discovered context into testable hypotheses about new information.