nltk.corpus.reader.LinThesaurusCorpusReader

class documentation

class LinThesaurusCorpusReader(CorpusReader): (source)

Constructor: LinThesaurusCorpusReader(root, badscore)

Wrapper for the LISP-formatted thesauruses distributed by Dekang Lin.

Method	`__contains__`	Determines whether or not the given ngram is in the thesaurus.
Method	`__init__`	Initialize the thesaurus.
Method	`scored_synonyms`	Returns a list of scored synonyms (tuples of synonyms and scores) for the current ngram
Method	`similarity`	Returns the similarity score for two ngrams.
Method	`synonyms`	Returns a list of synonyms for the current ngram.
Static Method	`__defaultdict_factory`	Factory for creating defaultdict of defaultdict(dict)s
Class Variable	`_key_re`	Undocumented
Instance Variable	`_badscore`	Undocumented
Instance Variable	`_thesaurus`	Undocumented

Inherited from CorpusReader:

Method	`__repr__`	Undocumented
Method	`abspath`	Return the absolute path for the given file.
Method	`abspaths`	Return a list of the absolute paths for all fileids in this corpus; or for the given list of fileids, if specified.
Method	`citation`	Return the contents of the corpus citation.bib file, if it exists.
Method	`encoding`	Return the unicode encoding for the given corpus file, if known. If the encoding is unknown, or if the given file should be processed using byte strings (str), then return None.
Method	`ensure_loaded`	Load this corpus (if it has not already been loaded). This is used by LazyCorpusLoader as a simple method that can be used to make sure a corpus is loaded -- e.g., in case a user wants to do help(some_corpus).
Method	`fileids`	Return a list of file identifiers for the fileids that make up this corpus.
Method	`license`	Return the contents of the corpus LICENSE file, if it exists.
Method	`open`	Return an open stream that can be used to read the given file. If the file's encoding is not None, then the stream will automatically decode the file's contents into unicode.
Method	`readme`	Return the contents of the corpus README file, if it exists.
Class Variable	`root`	Undocumented
Method	`_get_root`	Undocumented
Instance Variable	`_encoding`	The default unicode encoding for the fileids that make up this corpus. If `encoding` is None, then the file contents are processed using byte strings.
Instance Variable	`_fileids`	A list of the relative paths for the fileids that make up this corpus.
Instance Variable	`_root`	The root directory for this corpus.
Instance Variable	`_tagset`	Undocumented

def __contains__(self, ngram): (source) ¶

Determines whether or not the given ngram is in the thesaurus.

Parameters
ngram:C{string}	ngram to lookup
Returns
whether the given ngram is in the thesaurus.

def __init__(self, root, badscore=0.0): (source) ¶

overrides nltk.corpus.reader.CorpusReader.__init__

Initialize the thesaurus.

Parameters
root:C{string}	root directory containing thesaurus LISP files
badscore:C{float}	the score to give to words which do not appear in each other's sets of synonyms

def scored_synonyms(self, ngram, fileid=None): (source) ¶

Returns a list of scored synonyms (tuples of synonyms and scores) for the current ngram

Parameters
ngram:C{string}	ngram to lookup
fileid:C{string}	thesaurus fileid to search in. If None, search all fileids.
Returns
If fileid is specified, list of tuples of scores and synonyms; otherwise, list of tuples of fileids and lists, where inner lists consist of tuples of scores and synonyms.

def similarity(self, ngram1, ngram2, fileid=None): (source) ¶

Returns the similarity score for two ngrams.

Parameters
ngram1:C{string}	first ngram to compare
ngram2:C{string}	second ngram to compare
fileid:C{string}	thesaurus fileid to search in. If None, search all fileids.
Returns
If fileid is specified, just the score for the two ngrams; otherwise, list of tuples of fileids and scores.

def synonyms(self, ngram, fileid=None): (source) ¶

Returns a list of synonyms for the current ngram.

Parameters
ngram:C{string}	ngram to lookup
fileid:C{string}	thesaurus fileid to search in. If None, search all fileids.
Returns
If fileid is specified, list of synonyms; otherwise, list of tuples of fileids and lists, where inner lists contain synonyms.

@staticmethod
def __defaultdict_factory(): (source) ¶

Factory for creating defaultdict of defaultdict(dict)s

_key_re = (source) ¶

Undocumented

_badscore = (source) ¶

Undocumented

_thesaurus = (source) ¶

Undocumented