edu.stanford.nlp.trees
Class LeftHeadFinder
java.lang.Object
edu.stanford.nlp.trees.LeftHeadFinder
- All Implemented Interfaces:
- HeadFinder, Serializable
public class LeftHeadFinder
- extends Object
- implements HeadFinder
HeadFinder that always returns the leftmost daughter as head. For
testing purposes.
- Author:
- Roger Levy
- See Also:
- Serialized Form
Method Summary |
Tree |
determineHead(Tree t)
Determine which daughter of the current parse tree is the head. |
Tree |
determineHead(Tree t,
Tree parent)
Determine which daughter of the current parse tree is the head given the parent of
the tree. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LeftHeadFinder
public LeftHeadFinder()
determineHead
public Tree determineHead(Tree t)
- Description copied from interface:
HeadFinder
- Determine which daughter of the current parse tree is the head.
It assumes that the daughters already have had their heads
determined. Another method has to do the tree walking.
- Specified by:
determineHead
in interface HeadFinder
- Parameters:
t
- The parse tree to examine the daughters of
- Returns:
- The parse tree that is the head. The convention has been
that this returns
null
if no head is found.
But maybe it should throw an exception?
determineHead
public Tree determineHead(Tree t,
Tree parent)
- Description copied from interface:
HeadFinder
- Determine which daughter of the current parse tree is the head given the parent of
the tree.
It assumes that the daughters already have had their heads
determined. Another method has to do the tree walking.
- Specified by:
determineHead
in interface HeadFinder
- Parameters:
t
- The parse tree to examine the daughters ofparent
- The parent of tree t
- Returns:
- The parse tree that is the head. The convention has been
that this returns
null
if no head is found.
But maybe it should throw an exception?
Stanford NLP Group