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Filtering with excluded slots

Now you're going to put together some of the ideas from previous exercises in order to allow users to tell your bot about what they do and do not want, split across multiple messages.

The negated_ents() function has already been defined for you. Additionally, a slightly tweaked version of the find_hotels() function, which accepts a neg_params dictionary in addition to a params dictionary, has been defined.

Este ejercicio forma parte del curso

Building Chatbots in Python

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Instrucciones del ejercicio

  • Define a respond() function which accepts a message, params, and neg_params as arguments.
  • Use the negated_ents() function with message and ent_vals as arguments. Store the result in negated.
  • Use the tweaked find_hotels() function with the params and neg_params dictionaries as arguments to find matching hotels. Store the result in results.
  • Initialize the params and neg_params dictionaries outside the respond() function and hit 'Submit Answer' to see the bot's responses!

Ejercicio interactivo práctico

Prueba este ejercicio completando el código de muestra.

# Define the respond function
def ____:
    # Extract the entities
    entities = interpreter.parse(message)["entities"]
    ent_vals = [e["value"] for e in entities]
    # Look for negated entities
    negated = ____
    for ent in entities:
        if ent["value"] in negated and negated[ent["value"]]:
            neg_params[ent["entity"]] = str(ent["value"])
        else:
            params[ent["entity"]] = str(ent["value"])
    # Find the hotels
    results = ____
    names = [r[0] for r in results]
    n = min(len(results),3)
    # Return the correct response
    return responses[n].format(*names), params, neg_params

# Initialize params and neg_params
params = ____
neg_params = ____

# Pass the messages to the bot
for message in ["I want a cheap hotel", "but not in the north of town"]:
    print("USER: {}".format(message))
    response, params, neg_params = respond(message, params, neg_params)
    print("BOT: {}".format(response))
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