nltk.sem.boxer.Boxer

class documentation

class Boxer(object): (source)

Constructor: Boxer(boxer_drs_interpreter, elimeq, bin_dir, verbose, resolve)

This class is an interface to Johan Bos's program Boxer, a wide-coverage semantic parser that produces Discourse Representation Structures (DRSs).

Method	`__init__`	`AbstractBoxerDrs` object hierarchy to a different object. The default is `NltkDrtBoxerDrsInterpreter`, which converts to the NLTK DRT hierarchy. :param elimeq: When set to true, Boxer removes all equalities from the DRSs and discourse referents standing in the equality relation are unified, but only if this can be done in a meaning-preserving manner...
Method	`interpret`	Use Boxer to give a first order representation.
Method	`interpret_multi`	Use Boxer to give a first order representation.
Method	`interpret_multi_sents`	Use Boxer to give a first order representation.
Method	`interpret_sents`	Use Boxer to give a first order representation.
Method	`set_bin_dir`	Undocumented
Method	`_call`	Call the binary with the given input.
Method	`_call_boxer`	Call the `boxer` binary with the given input.
Method	`_call_candc`	Call the `candc` binary with the given input.
Method	`_find_binary`	Undocumented
Method	`_parse_drs`	Undocumented
Method	`_parse_to_drs_dict`	Undocumented
Instance Variable	`_boxer_bin`	Undocumented
Instance Variable	`_boxer_drs_interpreter`	Undocumented
Instance Variable	`_candc_bin`	Undocumented
Instance Variable	`_candc_models_path`	Undocumented
Instance Variable	`_elimeq`	Undocumented
Instance Variable	`_resolve`	Undocumented

def __init__(self, boxer_drs_interpreter=None, elimeq=False, bin_dir=None, verbose=False, resolve=True): (source) ¶

AbstractBoxerDrs object hierarchy to a different object. The default is NltkDrtBoxerDrsInterpreter, which converts to the NLTK DRT hierarchy. :param elimeq: When set to true, Boxer removes all equalities from the DRSs and discourse referents standing in the equality relation are unified, but only if this can be done in a meaning-preserving manner. :param resolve: When set to true, Boxer will resolve all anaphoric DRSs and perform merge-reduction. Resolution follows Van der Sandt's theory of binding and accommodation.

Parameters
boxer_drs_interpreter	A class that converts from the
elimeq	Undocumented
bin_dir	Undocumented
verbose	Undocumented
resolve	Undocumented

def interpret(self, input, discourse_id=None, question=False, verbose=False): (source) ¶

Use Boxer to give a first order representation.

Parameters
input	str Input sentence to parse
discourse_id	str An identifier to be inserted to each occurrence-indexed predicate.
question	Undocumented
verbose	Undocumented
occur_index	bool Should predicates be occurrence indexed?
Returns
`drt.DrtExpression`

def interpret_multi(self, input, discourse_id=None, question=False, verbose=False): (source) ¶

Use Boxer to give a first order representation.

Parameters
input	list of str Input sentences to parse as a single discourse
discourse_id	str An identifier to be inserted to each occurrence-indexed predicate.
question	Undocumented
verbose	Undocumented
occur_index	bool Should predicates be occurrence indexed?
Returns
`drt.DrtExpression`

def interpret_multi_sents(self, inputs, discourse_ids=None, question=False, verbose=False): (source) ¶

Use Boxer to give a first order representation.

Parameters
inputs	list of list of str Input discourses to parse
discourse_ids	list of str Identifiers to be inserted to each occurrence-indexed predicate.
question	Undocumented
verbose	Undocumented
occur_index	bool Should predicates be occurrence indexed?
Returns
`drt.DrtExpression`

def interpret_sents(self, inputs, discourse_ids=None, question=False, verbose=False): (source) ¶

Use Boxer to give a first order representation.

Parameters
inputs	list of str Input sentences to parse as individual discourses
discourse_ids	list of str Identifiers to be inserted to each occurrence-indexed predicate.
question	Undocumented
verbose	Undocumented
occur_index	bool Should predicates be occurrence indexed?
Returns
list of `drt.DrtExpression`

def set_bin_dir(self, bin_dir, verbose=False): (source) ¶

Undocumented

def _call(self, input_str, binary, args=[], verbose=False): (source) ¶

Call the binary with the given input.

Parameters
input_str	A string whose contents are used as stdin.
binary	The location of the binary to call
args	A list of command-line arguments.
verbose	Undocumented
Returns
stdout

def _call_boxer(self, candc_out, verbose=False): (source) ¶

Call the boxer binary with the given input.

Parameters
candc_out	str output from C&C parser
verbose	Undocumented
Returns
stdout

def _call_candc(self, inputs, discourse_ids, question, verbose=False): (source) ¶

Call the candc binary with the given input.

Parameters
inputs	list of list of str Input discourses to parse
discourse_ids	list of str Identifiers to be inserted to each occurrence-indexed predicate.
question	Undocumented
verbose	Undocumented
filename	str A filename for the output file
Returns
stdout

def _find_binary(self, name, bin_dir, verbose=False): (source) ¶

Undocumented

def _parse_drs(self, drs_string, discourse_id, use_disc_id): (source) ¶

Undocumented

def _parse_to_drs_dict(self, boxer_out, use_disc_id): (source) ¶

Undocumented

_boxer_bin = (source) ¶

Undocumented

_boxer_drs_interpreter = (source) ¶

Undocumented

_candc_bin = (source) ¶

Undocumented

_candc_models_path = (source) ¶

Undocumented

_elimeq = (source) ¶

Undocumented

_resolve = (source) ¶

Undocumented