Package jazzparser :: Package parsers

Package parsers

Parser modules for the Jazz Parser.

Subpackages of this define parser modules. Each may implement its own parsing algorithm and operates independently of the formalism and tagger, which have strictly defined interfaces through which the parser accesses them.

To add a new parser, create the parser class in a new subpackage and add the package's name to the PARSERS constant below.

Author: Mark Granroth-Wilding <mark.granroth-wilding@ed.ac.uk>

Submodules

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jazzparser.parsers.base: Base classes for parser modules.
- jazzparser.parsers.base.parser: Parser module common base class.
- jazzparser.parsers.base.utils: Utils for chart-related processing
jazzparser.parsers.cky: Basic implementation of the CKY algorithm for chart parsing.
- jazzparser.parsers.cky.chart: Chart representation for CKY chart parsing.
- jazzparser.parsers.cky.inspector: Chart inspector, for viewing the chart during parsing.
- jazzparser.parsers.cky.parser: CKY parser implementation.
- jazzparser.parsers.cky.tools: Interactive shell tools for the CKY parser.
jazzparser.parsers.fail
- jazzparser.parsers.fail.parser: A parser that always fails to find a result.
jazzparser.parsers.loader: Utility to load dynamically a named parser module.
jazzparser.parsers.pcfg: Generative probabilistic (PCFG) parsing module.
- jazzparser.parsers.pcfg.chart: Chart representation for the PCFG parser.
- jazzparser.parsers.pcfg.inspector: Chart inspector for the pcfg parser.
- jazzparser.parsers.pcfg.model: Probabilistic models for the PCFG parser.
- jazzparser.parsers.pcfg.parser: Probabilistic (PCFG) extension to the CKY parser implementation.
- jazzparser.parsers.pcfg.tools: Interactive shell tools for the PCFG parser.
jazzparser.parsers.tagrank: CKY parser that propagates probabilities through a derivation from the tag probabilities.
- jazzparser.parsers.tagrank.chart: Simple probabilistic extension to the CKY chart for the tagrank parser.
- jazzparser.parsers.tagrank.inspector: Chart inspector for the tag rank parser.
- jazzparser.parsers.tagrank.parser: Simple extension of a CKY parser to propagate probabilities through a derivation from the tag probabilities.

Classes

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RuleApplicationError
Thrown if there's an error during application of a rule to categories.

ParseError
Thrown if it's not possible to carry out a parse, for some reason.

ParserInitializationError
Thrown when initializing the parser if something in the configuration prevents correct initialization.

Variables

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PARSERS = ['cky', 'pcfg', 'tagrank', 'fail']

__package__ = None
hash(x)