Package nltk_lite :: Package tag :: Module unigram :: Class Lookup

Class Lookup

     object --+            
              |            
yaml.YAMLObject --+        
                  |        
               TagI --+    
                      |    
      SequentialBackoff --+
                          |
                         Lookup

A tagger that assigns tags to words based on a lookup table.

Nested Classes

[hide private]

Inherited from yaml.YAMLObject: __metaclass__, yaml_dumper, yaml_loader

Instance Methods

[hide private]

__init__(self, table, backoff=None)
Construct a new lookup tagger.

source code

tag_one(self, token, history=None)

source code

__repr__(self)
repr(x)

source code

Inherited from SequentialBackoff: tag, tag_sents

Inherited from SequentialBackoff (private): _backoff_tag_one

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __str__

Class Methods

[hide private]

Inherited from yaml.YAMLObject: from_yaml, to_yaml

Class Variables

[hide private]

Inherited from yaml.YAMLObject: yaml_flow_style, yaml_tag

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, table, backoff=None)
(Constructor)

source code

Construct a new lookup tagger.

Parameters:

table (dict from string to string) - A dictionary mapping words to tags, which indicates that a particular Cword should be assigned a given Ctag. If none of the regexps match a word, then the optional backoff tagger is invoked, else it is assigned the tag None.

Overrides: object.__init__

repr(self)
(Representation operator)

source code

repr(x)

Overrides: object.__repr__: (inherited documentation)

Class Lookup

__init__(self, table, backoff=None) (Constructor)

__repr__(self) (Representation operator)

init(self, table, backoff=None)
(Constructor)

repr(self)
(Representation operator)