Package edu.stanford.nlp.trees

Interface Summary

Interface	Description
ConstituentFactory	A ConstituentFactory is a factory for creating objects of class Constituent, or some descendent class.
CopulaHeadFinder	A mix-in interface for HeadFinders which support the makesCopulaHead method, which says how the HeadFinder in question handles "to be" verbs.
Dependency<G extends Label,D extends Label,N>	An individual dependency between a governor and a dependent.
DependencyFactory	A factory for dependencies of a certain type.
DependencyPrinter
DependencyReader
DependencyTyper<T>	A generified interface for making some kind of dependency object between a head and dependent.
GrammaticalStructureFactory	A general factory for GrammaticalStructure objects.
GrammaticalStructureFromDependenciesFactory	An interface for a factory that builds a GrammaticalStructure from a list of TypedDependencies and a TreeGraphNode.
HasParent	Only to be implemented by Tree subclasses that actualy keep their parent pointers.
HeadFinder	An interface for finding the "head" daughter of a phrase structure tree.
Labeled	Interface for Objects which have a Label.
TreebankFactory	An interface for treebank vendors.
TreebankLanguagePack	This interface specifies language/treebank specific information for a Treebank, which a parser or other treebank user might need to know.
TreebankTransformer
TreeFactory	A TreeFactory acts as a factory for creating objects of class Tree, or some descendant class.
TreeReader	A TreeReader adds functionality to another Reader by reading in Trees, or some descendant class.
TreeReaderFactory	A TreeReaderFactory is a factory for creating objects of class TreeReader, or some descendant class.
TreeTransformer	This is a simple interface for a function that alters a local Tree.
TreeVisitor	This is a simple strategy-type interface for operations that are applied to Tree.
WordNetConnection	Allows us to verify that a wordnet connection is available without compile time errors if the package is not found.

Class Summary

Class	Description
AbstractCollinsHeadFinder	A base class for a HeadFinder similar to the one described in Michael Collins' 1999 thesis.
AbstractTreebankLanguagePack	This provides an implementation of parts of the TreebankLanguagePack API to reduce the load on fresh implementations.
BasicCategoryTreeTransformer	Transforms trees by turning the labels into their basic categories according to the TreebankLanguagePack
BobChrisTreeNormalizer	Normalizes trees in the way used in Manning and Carpenter 1997.
BobChrisTreeNormalizer.AOverAFilter
BobChrisTreeNormalizer.EmptyFilter
CollinsHeadFinder	Implements the HeadFinder found in Michael Collins' 1999 thesis.
CollocationFinder	Finds WordNet collocations in parse trees.
CompositeTreebank
CompositeTreeTransformer	A TreeTransformer that applies component TreeTransformers in order.
Constituent	A Constituent object defines a generic edge in a graph.
CoordinationTransformer	Coordination transformer transforms a PennTreebank tree containing a coordination in a flat structure in order to get the dependencies right.
DateTreeTransformer	Flattens the following two structures: (NP (NP (NNP Month) (CD Day) ) (, ,) (NP (CD Year) )) becomes (NP (NNP Month) (CD Day) (, ,) (CD Year) ) (NP (NP (NNP Month) ) (NP (CD Year) )) becomes (NP (NNP Month) (CD Year))
DeepTree	A tree combined with a map from subtree to SimpleMatrix vectors.
Dependencies	Utilities for Dependency objects.
Dependencies.DependentPuncTagRejectFilter<G extends Label,D extends Label,N>
Dependencies.DependentPuncWordRejectFilter<G extends Label,D extends Label,N>
DependencyTreeTransformer	Transforms an English structure parse tree in order to get the dependencies right: -- put a ROOT node -- remove NONE nodes -- retain only NP-TMP, NP-ADV, UCP-TMP tags The UCP- tags will later be turned into NP- anyway (Note [cdm]: A lot of this overlaps other existing functionality in trees.
DiskTreebank	A DiskTreebank is a Collection of Trees.
EnglishGrammaticalRelations	EnglishGrammaticalRelations is a set of GrammaticalRelation objects for the English language.
EnglishGrammaticalStructure	A GrammaticalStructure for English.
EnglishGrammaticalStructure.FromDependenciesFactory
EnglishGrammaticalStructureFactory
EnglishPatterns	This class contains some English String or Tregex regular expression patterns.
EnglishPTBTreebankCorrector
FilteringTreebank	This class wraps another Treebank, and will vend trees that passed a Filter.
FilteringTreeReader	A FilteringTreeReader filters the output of another TreeReader.
GrammaticalFunctionTreeNormalizer	Tree normalizer for cleaning up labels and preserving the whole node label, the grammatical function and category information from the label, or only the category information.
GrammaticalRelation	GrammaticalRelation is used to define a standardized, hierarchical set of grammatical relations, together with patterns for identifying them in parse trees.
GrammaticalStructure	A GrammaticalStructure stores dependency relations between nodes in a tree.
LabeledConstituent	A LabeledConstituent object represents a single bracketing in a derivation, including start and end points and Label information, but excluding probabilistic information.
LabeledScoredConstituent	A LabeledScoredConstituent object defines an edge in a graph with a label and a score.
LabeledScoredConstituentFactory	A LabeledScoredConstituentFactory acts as a factory for creating objects of class LabeledScoredConstituent.
LabeledScoredTreeFactory	A LabeledScoredTreeFactory acts as a factory for creating trees with labels and scores.
LabeledScoredTreeNode	A LabeledScoredTreeNode represents a tree composed of a root label, a score, and an array of daughter parse trees.
LabeledScoredTreeReaderFactory	This class implements a TreeReaderFactory that produces labeled, scored array-based Trees, which have been cleaned up to delete empties, etc.
LeftHeadFinder	HeadFinder that always returns the leftmost daughter as head.
LengthTreeFilter	Only accept trees that are short enough (less than or equal to length).
MemoryTreebank	A MemoryTreebank object stores a corpus of examples with given tree structures in memory (as a List).
ModCollinsHeadFinder	Implements a variant on the HeadFinder found in Michael Collins' 1999 thesis.
NamedDependency	An individual dependency between a head and a dependent.
NPTmpRetainingTreeNormalizer	Same TreeNormalizer as BobChrisTreeNormalizer, but optionally provides four extras.
NPTmpRetainingTreeNormalizer.NPTmpAdvRetainingTreeReaderFactory	Implementation of TreeReaderFactory, mainly for convenience of constructing by reflection.
NPTmpRetainingTreeNormalizer.NPTmpRetainingTreeReaderFactory	Implementation of TreeReaderFactory, mainly for convenience of constructing by reflection.
OrderedCombinationTreeNormalizer	This class combines multiple tree normalizers.
PennTreebankLanguagePack	Specifies the treebank/language specific components needed for parsing the English Penn Treebank.
PennTreebankTokenizer	Builds a tokenizer for English PennTreebank (release 2) trees.
PennTreeReader	This class implements the TreeReader interface to read Penn Treebank-style files.
PennTreeReaderFactory	Vends PennTreeReader objects.
QPTreeTransformer	Transforms an English structure parse tree in order to get the dependencies right: Adds an extra structure in QP phrases: (QP (RB well) (IN over) (CD 9)) becomes (QP (XS (RB well) (IN over)) (CD 9)) (QP (...) (CC ...) (...)) becomes (QP (NP ...) (CC ...) (NP ...))
RecursiveTreeTransformer	A tool to recursively alter a tree in various ways.
SemanticHeadFinder	Implements a 'semantic head' variant of the the HeadFinder found in Michael Collins' 1999 thesis.
SimpleConstituent	A SimpleConstituent object defines a generic edge in a graph.
SimpleConstituentFactory	A ConstituentFactory acts as a factory for creating objects of class Constituent, or some descendent class.
SimpleTree	A SimpleTree is a minimal concrete implementation of an unlabeled, unscored Tree.
SimpleTreeFactory	A SimpleTreeFactory acts as a factory for creating objects of class SimpleTree.
Span	A Span is an optimized SimpleConstituent object.
StringLabeledScoredTreeReaderFactory	This class implements a TreeReaderFactory that produces labeled, scored array-based Trees, which have been cleaned up to delete empties, etc.
SynchronizedTreeTransformer	If you have a TreeTransformer which is not threadsafe, and you need to call it from multiple threads, this will wrap it in a synchronized manner.
TransformingTreebank	This class wraps another Treebank, and will vend trees that have been through a TreeTransformer.
Tree	The abstract class Tree is used to collect all of the tree types, and acts as a generic extendable type.
Treebank	A Treebank object provides access to a corpus of examples with given tree structures.
Treebanks	This is just a main method and other static methods for command-line manipulation, statistics, and testing of Treebank objects.
TreeCoreAnnotations	Set of common annotations for CoreMaps that require classes from the trees package.
TreeCoreAnnotations.BinarizedTreeAnnotation	The CoreMap key for getting the binarized version of the syntactic parse tree of a sentence.
TreeCoreAnnotations.HeadTagLabelAnnotation	The standard key for storing a head tag in the map as a pointer to the head label.
TreeCoreAnnotations.HeadWordLabelAnnotation	The standard key for storing a head word in the map as a pointer to the head label.
TreeCoreAnnotations.TreeAnnotation	The CoreMap key for getting the syntactic parse tree of a sentence.
TreeFilters	A location for general implementations of Filter<Tree>.
TreeFilters.HasMatchingChild
TreeFunctions	This is a utility class which vends tree transformers to translate trees from one factory type to trees of another.
TreeGraphNode	A TreeGraphNode is simply a Tree with some additional functionality.
TreeGraphNodeFactory	A TreeGraphNodeFactory acts as a factory for creating nodes in a TreeGraph.
TreeLeafLabelTransformer	Applies a Function to the labels in a tree.
TreeLemmatizer
TreeLengthComparator	A TreeLengthComparator orders trees by their yield sentence lengths.
TreeNormalizer	A class for tree normalization.
TreePrint	A class for customizing the print method(s) for a edu.stanford.nlp.trees.Tree as the output of the parser.
Trees	Various static utilities for the Tree class.
TreeTokenizerFactory	Wrapper for TreeReaderFactory.
TypedDependency	A TypedDependency is a relation between two words in a GrammaticalStructure.
UniversalPOSMapper	Helper class to perform a context-sensitive mapping of POS tags in a tree to universal POS tags.
UnnamedConcreteDependency	An individual dependency between a head and a dependent.
UnnamedDependency	An individual dependency between a head and a dependent.
WordStemmer	Stems the Words in a Tree using Morphology.

Enum Summary

Enum	Description
GrammaticalRelation.Language
GrammaticalStructure.Extras	A specification for the types of extra edges to add to the dependency tree.