Today I tried out Rasa Core to see if it is really the better alternative too a decision tree. I made up a super simple story and did not include any actions, only simple utterances. Idea The idea is,… …that I can order drinks in a loop until I’m satisfied …each time I order a “fanta”, the bot makes an additional comment “bamboocha” That’s it! Problem I don’t make it to build such a flow. I tried many different stories, but always had some problems. In the attached sample I have the following problems: If I order a coke after the greeting, the bot tells me “bamboocha” (should only happen with fanta) The visualisation shows me a loop for order a drink, but not one for ordering fanta Questions Can you help me… …to solve the specific problem? …with general knowledge how to write stories? …to get rid of my doubts, that this never can work for a complex project, if I have already so many problem with this super simple example? Training data Stories ## story_greet * greet - utter_greet > check_greet ## story_order_drink > check_greet * orderdrink - utter_anythingelse * orderdrink - utter_anythingelse > check_finish ## story_order_fanta_1 > check_greet * orderdrink - utter_anythingelse * orderdrink{"drink":"fanta"} - utter_bamboocha - utter_anythingelse > check_finish ## story_order_fanta_2 > check_greet * orderdrink{"drink":"fanta"} - utter_bamboocha - utter_anythingelse * orderdrink - utter_anythingelse > check_finish ## story_finish > check_finish * finish - utter_goodbye Visualisation, Domain and NLU domain.yml (351 Bytes) graph.html (4.8 KB) nlu_data.md (1.0 KB) I’m more than curious for your inputs. Many thanks!

Hi Chris, have you already tried using a slot for drinks, and specifically a slot of type categorized? Slots and slot types are declared in the domain.yml like slots: drink: type: categorical values: - fanta - rivella See here in the docs: https://rasa.com/docs/core/slots/ https://rasa.com/docs/core/api/slots_api/ If you give it a try, please let me know what you found.

Finally I found time to test that. The result is more or less the same. I can’t create reliable stories. If I wan’t to react different depending on the entity (or/and slot) value, it does not work. Additional thoughts: The ML seams to ignore that orderdrink{"drink": "coke"} is a specification and orderdrink (without a concrete entity value) a generalisation. In my eyes the specification should have a stronger impact on the decision. Interactive learning is good idea, but to reach my goal I will “train” hundreds of times. A plain decision tree would be way more effective, less time consuming and not as error prone. How can that scale, if it does not work with such an easy sample? I heard so many good comments about RASA CORE. I would be super glad to understand how I can use Rasa Core the right way (or at least that somebody tells me that it is not as cool). Thanks for all input.

Hi all. @Chris @weberi @juste_petr @Tanja @amn41 Please help me with below issue I have a question regarding writing stories.Suppose I have two intents Order and Shipping. Order checks order status and shipping is to get the shipping address. For this I have 3!(Factorial) combinations. 1)greetings, order status, shipping address 2)greetings, shipping address, order status 3)without greeting, direct OS and SA 4)without greeting, direct SA and OS. So my question is do I need to write every possible combination in stories? What if I have many such types. Say I have 100 types, it will sum up to 100!, for which it is humanly impossible to write those combination stories.

hi @iampkk - it depends on the behaviour you want. if each of these intents always results in the same action, you can set your max_history to 1, or use the mapping policy, see Tutorial: Building Assistants if you want your assistant to also handle context, you can use AugmentedMemoization or ML-based policies, see Tutorial: Building Assistants . These were designed for exactly this behaviour.

This can be done in your action.py file. Don’t use separate responses but use if/else statement for your output file in the action response that you’ve created.

can you elaborate using an example ?

Rasa Core - How to write reliable stories

Rasa Open Source

Chris (Caspar) January 14, 2019, 9:03am 2

Are there any field reports, best practices or just experiences with RASA Core and the use of sample stories? Where you I find them?

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Rasa Core - How to write reliable stories

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