nltk.parse.projectivedependencyparser

module documentation

(source)

Undocumented

Class	`ChartCell`	A cell from the parse chart formed when performing the CYK algorithm. Each cell keeps track of its x and y coordinates (though this will probably be discarded), and a list of spans serving as the cell's entries.
Class	`DependencySpan`	A contiguous span over some part of the input string representing dependency (head -> modifier) relationships amongst words. An atomic span corresponds to only one word so it isn't a 'span' in the conventional sense, as its _start_index = _end_index = _head_index for concatenation purposes...
Class	`ProbabilisticProjectiveDependencyParser`	A probabilistic, projective dependency parser.
Class	`ProjectiveDependencyParser`	A projective, rule-based, dependency parser. A ProjectiveDependencyParser is created with a DependencyGrammar, a set of productions specifying word-to-word dependency relations. The parse() method will then return the set of all parses, in tree representation, for a given input sequence of tokens...
Function	`arity_parse_demo`	A demonstration showing the creation of a `DependencyGrammar` in which a specific number of modifiers is listed for a given head. This can further constrain the number of possible parses created by a `ProjectiveDependencyParser`...
Function	`demo`	Undocumented
Function	`projective_prob_parse_demo`	A demo showing the training and use of a projective dependency parser.
Function	`projective_rule_parse_demo`	A demonstration showing the creation and use of a `DependencyGrammar` to perform a projective dependency parse.

def arity_parse_demo(): (source) ¶

A demonstration showing the creation of a DependencyGrammar in which a specific number of modifiers is listed for a given head. This can further constrain the number of possible parses created by a ProjectiveDependencyParser.

def demo(): (source) ¶

Undocumented

def projective_prob_parse_demo(): (source) ¶

A demo showing the training and use of a projective dependency parser.

def projective_rule_parse_demo(): (source) ¶

A demonstration showing the creation and use of a DependencyGrammar to perform a projective dependency parse.