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TR-544-97
Hierarchical Non-Emitting Markov Models |
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| Authors: | Ristad, Eric Sven, Thomas, Robert G. |
| Date: | May 1997 |
| Pages: | 24 |
| Download Formats: | [Postscript] |
We describe a simple variant of the interpolated Markov model with non-emitting state transitions and prove that it is strictly more powerful than any Markov model. More importantly, the non-emitting model outperforms the classic interpolated model on the natural language texts under a wide range of experimental conditions, with only a modest increase in computational requirements. The non-emitting model is also much less prone to overfitting. |
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