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Fox-V3/chatter/chatterbot/response_selection.py

72 lines
2.2 KiB

"""
Response selection methods determines which response should be used in
the event that multiple responses are generated within a logic adapter.
"""
import logging
def get_most_frequent_response(input_statement, response_list):
"""
:param input_statement: A statement, that closely matches an input to the chat bot.
:type input_statement: Statement
:param response_list: A list of statement options to choose a response from.
:type response_list: list
:return: The response statement with the greatest number of occurrences.
:rtype: Statement
"""
matching_response = None
occurrence_count = -1
logger = logging.getLogger(__name__)
logger.info(u'Selecting response with greatest number of occurrences.')
for statement in response_list:
count = statement.get_response_count(input_statement)
# Keep the more common statement
if count >= occurrence_count:
matching_response = statement
occurrence_count = count
# Choose the most commonly occuring matching response
return matching_response
def get_first_response(input_statement, response_list):
"""
:param input_statement: A statement, that closely matches an input to the chat bot.
:type input_statement: Statement
:param response_list: A list of statement options to choose a response from.
:type response_list: list
:return: Return the first statement in the response list.
:rtype: Statement
"""
logger = logging.getLogger(__name__)
logger.info(u'Selecting first response from list of {} options.'.format(
len(response_list)
))
return response_list[0]
def get_random_response(input_statement, response_list):
"""
:param input_statement: A statement, that closely matches an input to the chat bot.
:type input_statement: Statement
:param response_list: A list of statement options to choose a response from.
:type response_list: list
:return: Choose a random response from the selection.
:rtype: Statement
"""
from random import choice
logger = logging.getLogger(__name__)
logger.info(u'Selecting a response from list of {} options.'.format(
len(response_list)
))
return choice(response_list)