NLP（十五） 聊天机器人

原文链接：http://www.one2know.cn/nlp15/

• 对话引擎
  
  1.了解目标用户
  
  2.理解用于沟通得语言
  
  3.了解用户的意图
  
  4.应答用户，并给出进一步线索
• NLTK中的引擎
  
  eliza,iesha,rude,suntsu,zen

import nltkdef builtinEngines(whichOne): # 测试自带的聊天机器人
if whichOne == 'eliza':
nltk.chat.eliza.demo()
elif whichOne == 'iesha':
nltk.chat.iesha.demo()
elif whichOne == 'rude':
nltk.chat.rude.demo()
elif whichOne == 'suntsu':
nltk.chat.suntsu.demo()
elif whichOne == 'zen':
nltk.chat.zen.demo()
else:
print('unknown built-in chat engine {}'.format(whichOne))def myEngine(): # 自己的简单对话机器人
chatpairs = (
(r"(.*?)Stock price(.*)",
("Today stock price is 100",
"I am unable to find out the stock price.")),
(r"(.*?)not well(.*)",
("Oh, take care. May be you should cisit a doctor",
"Did you take some medicine ?")),
(r"(.*?)raining(.*)",
("It's monsoon season, what more do you expect ?",
"Yes, it's good for farmers")),
(r"How(.*?)health(.*)",
("I am always healthy.",
"I am a program, super healthy!")),
(r".*",
("I am good. How are you today ?",
"What brings you here ?"))
)
def chat():
print('!'*60)
print(' >> my Engine << ')
print('Talk to the program using normal english')
print('='*60)
print("Enter 'quit' when done")
chatbot = nltk.chat.util.Chat(chatpairs,nltk.chat.util.reflections)
chatbot.converse()
chat()if __name__ == "__main__":
myEngine()
for engine in ['eliza','iesha','rude','suntsu','zen']:
print("=== demo of {} ===".format(engine))
builtinEngines(engine)
print()