processing. ********是一个访问WordNet风格的关系词典的API，除了能够提供数据访问外，还可以方便关系发现和语义处理********

2、基本操作方法：
Basic Usage
Using JWNL is very simple. First, call JWNL.initialize() somewhere in the initialization code of your program. （JWNL.initialize()在程序中进行初始化）

Then, just call Dictionary.getInstance() to get the currently installed dictionary. The only dictionary methods you should really ever need to call are lookupIndexWord(), lookupAllIndexWords(), and getIndexWordIterator(). （Dictionary.getInstance()获取当前所载入的词典，lookupIndexWord()进行词语的寻找。）

The other methods you may be interested in RelationshipFinder.findRelationships(), and those in PointerUtils. （RelationshipFinder.findRelationships()进行关系的查找（一般为继承关系类属））RelationshipFinder.findRelationships() allows you to find relationships of a given type between two words (such as ancestry). Another way of thinking of a relationship is as a path from the source synset to the target synset. （另外也可以通过计算源词语与目标词语距离的计算）The methods in PointerUtils allow you to find chains of pointers of a given type. For example, calling PointerUtils.getHypernymTree() on the synset that contains "dog," returns a tree with all its parent synsets ("canine"), and its parents' parents ("carnivore"), etc., all the way to the root synset ("entity"). （PointerUtils允许发现某个节点的给定类型的节点链）

3、改进目标：
Goals for Future Releases
There are many areas in which JWNL needs improvement:
     Support for non-english dictionaries
     A GUI for browsing the dictionary
     Better documentation, logging, and error messages
     Frequency of sense use
As JWNL is now officially an open-source project, you are

encouraged to improve JWNL in any of these areas, or any other

areas in which you see fit.

一个Synset表达了一个概念，并且其包含了一组同义词。Synset被Pointers

链接成相关概念的网络，这就是WordNet的Net；getTarget可以从这个链中

抽取出目标；getPointer可以抽取出pointers自己本身。
  A Synset, or synonym set, represents a line of a WordNet

pos.data file. A Synset represents a concept, and contains a

set of Words, each of which has a sense that names that concept

(and each of which is therefore synonymous with the other words

in the Synset). Synset's are linked by Pointers into a network

of related concepts; this is the Net in WordNet. getTarget

retrieves the targets of these links, and getPointer retrieves

the pointers themselves.
（2）、A Pointer encodes a lexical or semantic relationship

between WordNet entities. A lexical relationship holds between

Words; a semantic relationship holds between Synsets.

Relationships are directional: the two roles of a relationship

are the source and target. Relationships are typed: the type of

a relationship is a PointerType, and can be retrieved via

getType.
（3）、An IndexWord represents a line of the pos.index file. An

IndexWord is created retrieved or retrieved via

DictionaryDatabase.lookupIndexWord(edu.gwu.wordnet.POS,

java.lang.String), and has a lemma, a pos, and a set of senses,

which are of type Synset.
（4）、POS：Instances of this class enumerate the possible major

syntactic categories, or part's of speech. Each POS has a

human-readable label that can be used to print it, and a key by

which it can be looked up.
（5）、A Word represents the lexical information related to a

specific sense of an IndexWord. Word's are linked by Pointers

into a network of lexically related words. getTarget retrieves

the targets of these links, and getPointer retrieves the

pointers themselves.
（6）、A PointerTarget is the source or target of a Pointer. The

target of a semantic PointerTarget is a Synset; the target of a

lexical PointerTarget is a Word.
（7）、PointerType：Instances of this class enumerate the

possible WordNet pointer types, and are used to label

PointerTypes. Each PointerType carries additional information:

a human-readable label, an optional reflexive type that labels

links pointing the opposite direction, an encoding of

parts-of-speech that it applies to, and a short string that

represents it in the dictionary files.

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