Build contextual chatbots with RASA framework

Copyright © 2019 HCL Technologies Limited | www.hcltech.com
OPEN CONVERSATIONAL AI FRAMEWORK FOR BUILDING CONTEXTUAL CHATBOTS AND
AI ASSISTANTS.
BY - PRASANNA VENKATESH JAYAPRAKASH (PRASANNAVJ@HCL.COM)

2 Copyright © 2019 HCL Technologies Limited | www.hcltech.com
AGENDA
Conversational AI Framework for building contextual chatbots and AI assistants.
 Understanding Chatbot Architecture
 Introduction to Current Chatbot Platforms and Industry Problem
 Introduction to RASA Framework
 introduction to RASA Chatbot Architecture
 Natural Language understanding - Components
 CORE Components and Structure.
 Core - Stories and Dialog management
 Integrating with External API
 Demonstration using Restaurant Details capture details.
 Demonstration integrating with Slack Messaging Platform.

CHATBOT ARCHITECTURE

INTRODUCTION TO CURRENT CHATBOT PLATFORMS AND INDUSTRY PROBLEM
 Google dialogFlow
 IBM
 Microsoft
 Amazon
 Facebook
 Industry problem:
 To Implement the solution no inhouse platform.
 All depend on cloud based learning solution – when enterprise plan to integrate might face problem due to the security and privacy concern of the
providers.
 Old rule based providers are phasing out
 Solution:
 Open Source conversational platform enable building and managing the complete chatbot inhouse – one such platform is RASA.

INTRODUCTION TO RASA FRAMEWORK
 Utilizes customizable ML and NLP solution to enable developers to control how and what they wanted to achieve part of the conversation.
 Provide option to integrate with external API services, External databases etc.
 Provide option to integrate with various prominent chatting/Messaging solution i.e: - Slack, faceBook messenger etc.
 Provide both Open Source (RASA Stack) and Commercial Offering (RASA Platform)

INTRODUCTION TO RASA CHATBOT ARCHITECTURE

NATURAL LANGUAGE UNDERSTANDING - COMPONENTS
Creating using
 Entity
 Intents
 Using RASA NLU Trainer

RASA CORE COMPONENTS AND STRUCTURE - DIALOG MANAGEMENT
 Entity
 Intents
 Slots
 Templates
 Actions
 Buttons

ENTITY
- Entity allows us to
define the list of items that
Need to be recognized by
Chatbot while conversing

INTENTS
- Intent of the person
Interacting with the chatbot

SLOTS
- Recognized by chatbot and
filled by the bot for further
processing.

ACTIONS
- Action to be carried out by
Chatbot on specific input
- Searching for restaurant
- Connecting with back end
Db etc.

TEMPLATES
- Possible options for display
To the used based on the
Specific intent

DIALOG MANAGEMENT MODULE - STORIES
 Stories
- Potential option for
conversation flow is detailed
In the conversation.

CONVERSATION EXAMPLE - DEMO
 Demo of solution:
 Video Link: https://www.youtube.com/watch?v=qi0o3jwMjvo&t=26s
 Live demo will be conducted during the presentation session.
 Starting from setting up the NLU
 Setting up core
 Integrating with Zomato API
 Integrating with SLACK

THANK YOU
PRASANNA VENKATESH JAYAPRAKASH
PRASANNAVJ@HCL.COM
LINKEDIN – HTTPS://WWW.LINKEDIN.COM/IN/PRASANNA-VENKATESH-JAYAPRAKASH-454133A/
TWITTER - @PRASANNA_VRI

Build contextual chatbots with RASA framework

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