Package nltk :: Package ccg :: Module chart :: Class CCGEdge

type CCGEdge

       object --+    
                |    
parse.chart.EdgeI --+
                    |
                   CCGEdge

Instance Methods

[hide private]

__init__(self, span, categ, rule)

source code

lhs(self)
Returns: This edge's left-hand side, which specifies what kind of structure is hypothesized by this edge.

source code

(int, int)

span(self)
Returns: A tuple (s,e), where subtokens[s:e] is the portion of the sentence that is consistent with this edge's structure. source code

int

start(self)
Returns: The start index of this edge's span.

source code

int

end(self)
Returns: The end index of this edge's span.

source code

int

length(self)
Returns: The length of this edge's span.

source code

rhs(self)
Returns: This edge's right-hand side, which specifies the content of the structure hypothesized by this edge.

source code

int

dot(self)
Returns: This edge's dot position, which indicates how much of the hypothesized structure is consistent with the sentence.

source code

boolean

is_complete(self)
Returns: True if this edge's structure is fully consistent with the text.

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boolean

is_incomplete(self)
Returns: True if this edge's structure is partially consistent with the text.

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Nonterminal or terminal or None

next(self)
Returns: The element of this edge's right-hand side that immediately follows its dot.

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categ(self)

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rule(self)

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__cmp__(self, other)

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__hash__(self)

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Method Details

[hide private]

init(self, span, categ, rule)
(Constructor)

source code

Overrides: parse.chart.EdgeI.__init__

lhs(self)

source code

Returns:: This edge's left-hand side, which specifies what kind of structure is hypothesized by this edge.
Overrides: parse.chart.EdgeI.lhs: (inherited documentation)

span(self)

source code

Returns: (int, int): A tuple (s,e), where subtokens[s:e] is the portion of the sentence that is consistent with this edge's structure.
Overrides: parse.chart.EdgeI.span: (inherited documentation)

start(self)

source code

Returns: int: The start index of this edge's span.
Overrides: parse.chart.EdgeI.start: (inherited documentation)

end(self)

source code

Returns: int: The end index of this edge's span.
Overrides: parse.chart.EdgeI.end: (inherited documentation)

length(self)

source code

Returns: int: The length of this edge's span.
Overrides: parse.chart.EdgeI.length: (inherited documentation)

rhs(self)

source code

Returns:: This edge's right-hand side, which specifies the content of the structure hypothesized by this edge.
Overrides: parse.chart.EdgeI.rhs: (inherited documentation)

dot(self)

source code

Returns: int: This edge's dot position, which indicates how much of the hypothesized structure is consistent with the sentence. In particular, self.rhs[:dot] is consistent with subtoks[self.start():self.end()].
Overrides: parse.chart.EdgeI.dot: (inherited documentation)

is_complete(self)

source code

Returns: boolean: True if this edge's structure is fully consistent with the text.
Overrides: parse.chart.EdgeI.is_complete: (inherited documentation)

is_incomplete(self)

source code

Returns: boolean: True if this edge's structure is partially consistent with the text.
Overrides: parse.chart.EdgeI.is_incomplete: (inherited documentation)

next(self)

source code

Returns: Nonterminal or terminal or None: The element of this edge's right-hand side that immediately follows its dot.
Overrides: parse.chart.EdgeI.next: (inherited documentation)