com.hankcs.hanlp.dependency.perceptron.transition.configuration

Class Instance

java.lang.Object

com.hankcs.hanlp.dependency.perceptron.transition.configuration.Instance

public class Instance
extends Object

训练实例

Field Summary

Fields

Modifier and Type	Field and Description
protected HashMap<Integer,Edge>	goldDependencies dependent -> head
protected HashMap<Integer,HashSet<Integer>>	reversedDependencies head -> dependents
protected Sentence	sentence

Constructor Summary

Constructors

Constructor and Description
Instance(Sentence sentence, HashMap<Integer,Edge> goldDependencies)

Method Summary

Modifier and Type	Method and Description
int	actionCost(Action action, int dependency, State state) For the cost of an action given the gold dependencies For more information see: Yoav Goldberg and Joakim Nivre.
HashMap<Integer,Edge>	getGoldDependencies()
HashMap<Integer,HashSet<Integer>>	getReversedDependencies()
Sentence	getSentence()
int	head(int dependent)
boolean	isNonprojective() Shows whether the tree to train is projective or not
boolean	isPartial(boolean rootFirst)
String	relation(int dependent)

Methods inherited from class java.lang.Object

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

Field Detail

goldDependencies

protected HashMap<Integer,Edge> goldDependencies

dependent -> head

reversedDependencies

protected HashMap<Integer,HashSet<Integer>> reversedDependencies

head -> dependents

sentence

protected Sentence sentence

Constructor Detail

Instance

public Instance(Sentence sentence,
                HashMap<Integer,Edge> goldDependencies)

Method Detail

getSentence

public Sentence getSentence()

head

public int head(int dependent)

relation

public String relation(int dependent)

getGoldDependencies

public HashMap<Integer,Edge> getGoldDependencies()

isNonprojective

public boolean isNonprojective()

Shows whether the tree to train is projective or not

Returns:

true if the tree is non-projective

isPartial

public boolean isPartial(boolean rootFirst)

getReversedDependencies

public HashMap<Integer,HashSet<Integer>> getReversedDependencies()

actionCost

public int actionCost(Action action,
                      int dependency,
                      State state)

For the cost of an action given the gold dependencies For more information see: Yoav Goldberg and Joakim Nivre. "Training Deterministic Parsers with Non-Deterministic Oracles." TACL 1 (2013): 403-414.

Parameters:

action -

dependency -

state -

Returns:

oracle cost of the action

Throws:

Exception