joshua.decoder.ff.WordPenaltyFF Class Reference

Inheritance diagram for joshua.decoder.ff.WordPenaltyFF:

Collaboration diagram for joshua.decoder.ff.WordPenaltyFF:

List of all members.

Public Member Functions
	WordPenaltyFF (int featureID, double weight)
double	estimateLogP (final Rule rule, int sentID)
Static Private Attributes
static final double	OMEGA = -Math.log10(Math.E)

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Detailed Description

Author:

Zhifei Li, zhife.nosp@m.i.wo.nosp@m.rk@gm.nosp@m.ail..nosp@m.com

Version:

$LastChangedDate$

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Constructor & Destructor Documentation

joshua.decoder.ff.WordPenaltyFF.WordPenaltyFF	(	int	featureID,
		double	weight
	)

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Member Function Documentation

double joshua.decoder.ff.WordPenaltyFF.estimateLogP	(	final Rule	rule,
		int	sentID
	)

Each additional word gets a penalty. The more number of words, the more negative. So, to encourage longer sentence, we should have a negative weight on the feature

Here is the call graph for this function:

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Member Data Documentation

final double joshua.decoder.ff.WordPenaltyFF.OMEGA = -Math.log10(Math.E) [static, private]