加载数据
with open(intents.json) as file:
data = json.load(file)
try:
with open(data.pickle, rb) as f:
words, labels, training, output = pickle.load(f)
except:
words = []
labels = []
docs_x = []
docs_y = []
数据预处理
for intent in data[intents]:
for pattern in intent[patterns]:
wrds = nltk.word_tokenize(pattern)
words.extend(wrds)
docs_x.append(wrds)
docs_y.append(intent[tag])
if intent[tag] not in labels:
labels.append(intent[tag])
words = [stemmer.stem(w.lower()) for w in words if w != ?]
words = sorted(list(set(words)))
labels = sorted(labels)
training = []
output = []
out_empty = [0 for _ in range(len(labels))]
for x, doc in enumerate(docs_x):
bag = []
wrds = [stemmer.stem(w.lower()) for w in doc]
for w in words:
if w in wrds:
bag.append(1)
else:
bag.append(0)
training = numpy.array(training)
output = numpy.array(output)
with open(data.pickle, wb) as f:
pickle.dump((words, labels, training, output), f)
tensorflow.reset_default_graph()
net = tflearn.input_data(shape=[None, len(training[0])])
net = tflearn.fully_connected(net, 8)
net = tflearn.fully_connected(net, 8)
net = tflearn.fully_connected(net, len(output[0]), activation=softmax)
net = tflearn.regression(net)
def bag_of_words(s, words):
bag = [0 for _ in range(len(words))]
s_words = nltk.word_tokenize(s)
s_words = [stemmer.stem(word.lower()) for word in s_words]
for se in s_words:
for i,w in enumerate(words):
if w == se:
bag[i] = 1
return numpy.array(bag)
def chat():
print(Start talking with the bot! (type quit to stop))
while True:
inp = input(You: )
if inp.lower() == quit:
break
p = bag_of_words(inp, words)
res = model.predict([p])[0]
ERROR_THRESHOLD = 0.25
results = [[i,r] for i,r in enumerate(res) if rERROR_THRESHOLD]
results.sort(key=lambda x: x[1], reverse=True)
tag = labels[results[0][0]]
for tg in data[intents]:
if(tg['tag']== tag):
responses= tg['responses']
print(random.choice(responses))
chat()
这个示例机器人依赖于一个JSON文件(`intents.json`),其中包含训练数据。例如:
json
{
intents: [
{
tag: greeting,
patterns: [Hi, Hey, Hello],
responses: [Hi there!, How can I assist you?, What's up?]
},
{
tag: goodbye,
patterns: [Bye, See you later, Goodbye],
responses: [See you!, Have a nice day!, Bye! Come back again soon.]
}
]
}