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Unpublished Paper
Piecewise Training with Parameter Independence Diagrams: Comparing Globally- and Locally-trained Linear-chain CRFs
(2004)
Abstract
We present a diagrammatic formalism and practial methods for introducing additional independence assumptions into parameter estimation, enabling efficient training of undirected graphical models in locally-normalized pieces. On two real-world data sets we demonstrate our locally-trained linear-chain CRFs outperforming traditional CRFs--training in less than one-fifth the time, and providing a statistically-significant gain in accuracy.
Disciplines
Publication Date
2004
Comments
This is the pre-published version harvested from CIIR.
Citation Information
Andrew McCallum and Charles Sutton. "Piecewise Training with Parameter Independence Diagrams: Comparing Globally- and Locally-trained Linear-chain CRFs" (2004) Available at: http://works.bepress.com/andrew_mccallum/48/