edu.stanford.nlp.parser.lexparser
Class Options.LexOptions

java.lang.Object
  edu.stanford.nlp.parser.lexparser.Options.LexOptions

All Implemented Interfaces:

Serializable

Enclosing class:

Options

public static class Options.LexOptions
extends Object
implements Serializable

See Also:

Serialized Form

Field Summary

boolean	smartMutation Smarter smoothing for rare words.
int	smoothInUnknownsThreshold Words more common than this are tagged with MLE P(t|w).
int	useUnknownWordSignatures Use suffix and capitalization information for unknowns.

Constructor Summary

Options.LexOptions()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

useUnknownWordSignatures

public int useUnknownWordSignatures

Use suffix and capitalization information for unknowns. 0 means a single unknown token. 1 uses suffix, and capitalization. 2 uses a variant (richer) form of signature. Good. Use this one. Using the richer signatures in versions 3 or 4 seems to have very marginal or no positive value. 3 uses a richer form of signature that mimics the NER word type patterns. 4 is a variant of 2. 5 is another with more English specific morphology (good for English unknowns!)

smoothInUnknownsThreshold

public int smoothInUnknownsThreshold

Words more common than this are tagged with MLE P(t|w). Default 100. The smoothing is sufficiently slight that changing this has little effect.

smartMutation

public boolean smartMutation

Smarter smoothing for rare words.

Constructor Detail

Options.LexOptions

public Options.LexOptions()