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Build Knowledge Graph
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  6. Knowledge Graph

Knowledge Graph Knowledge Graph (KG) helps you turn your static FAQ text into an intelligent, personalized conversational experience. It goes beyond the usual practice of capturing FAQs in the form of flat question-answer pairs. Instead, Knowledge Graph enables you to create a hierarchical structure of key domain terms and associate them with context-specific questions and their alternatives, synonyms, and Machine learning-enabled classes. This structure, when trained by the platform, generates a Knowledge Graph that enables an intelligent FAQ experience.

See here for more on KG Terminology.


To generate a Knowledge Graph, you need to add a FAQs to an existing or new Bot. If you have not already created a bot, refer to Creating a new Bot.

Creating a Knowledge Graph involves the following steps:

Step 1: Add Knowledge Graph to Bot

To open the Knowledge Graph builder:

  1. Log in to Bot Builder and open the bot to which you want to add the Knowledge Graph.
  2. From the left navigation menu, select Bot Task and, click the Knowledge Graph tab and then click the Knowledge Graph – <Bot Name>.

Step 2: Create the Graph

By default, the name of the bot becomes the root node of the hierarchy and you can edit this. Create the rest of the nodes below the root node.

To create nodes:

  1. On the top left side of your Knowledge Graph window, hover the mouse over the root node.
  2. Click the plus icon. A box appears below to Add Node.
  3. Type the name of the node in the box and press enter.

    Note: This node becomes a child for the root node and can be referred to as a First level node.
  4. Repeat steps 1 to 3 to create other First-level nodes.
  5. After you create First-level nodes, create child nodes as follows:
    • Hover your mouse over any First-level node, and click the plus icon to create its child node.
    • You can create a child node for any level nodes by hovering the mouse over it and clicking the plus icon.

Step 3: Building Knowledge Graph

The next step is to add Knowledge Graph Intents which can be either

  • FAQ – to answer user queries, or
  • Task – execute a dialog task.

Adding FAQs

Using this option you can add relevant question-answer sets to the nodes in the hierarchy. As you enter these questions, pay attention to terms that you can further add to your FAQ hierarchy.

To enter the question and answer for a selected node:

  1. From the left section of your Knowledge Graph window, click the node to which you want to add questions.
  2. On the top right side of the Knowledge Graph, click Add Intent.
  3. Set the Intent to FAQ.
  4. In the Add question box, enter the question that describes the user’s query.
  5. Optionally, if there are alternatives to the same question, add the same in the Add alternate question field. Repeat the step for all the alternative questions you want to add.
  6. For each question, you can add terms which will serve as tags in better identifying the question by the Knowledge Graph Engine.

Bot Responses

For the Response, you can compose a simple or complex channel-specific reply.

You can use the editor like any other prompt editor in the platform like messages for dialog nodes etc., refer here to know how.

You can add channel-specific responses to questions in your Knowledge Graph. By varying the responses, you can make the language and formatting to leverage the strengths of the selected channels. To add a channel-specific response, select the channel from the channels list before typing the response.

Note: We recommend you to add one response for All Channels so that it can be used in the absence of a channel-specific response for a channel.

Sometimes the responses to FAQ can be quite lengthy or may include nice-to-have information along with the primary response. To improve the readability of such responses, you can split information into multiple responses that go as separate messages one after another by clicking Add Extended Response on the top right corner of the Send Message box.

Optionally, if there is an alternative response, click the Add Alternate Response to add the same. Repeat the step for all the alternative responses you want to add. At runtime, the platform will pick one response at random.

Run a Task

You can link a Dialog task to a KG Intent. It helps you to leverage the capabilities of the Knowledge Graph and Dialog tasks to handle FAQs that involve complex conversations.

Select Task as Intent and select a task from the drop-down list. You can Add utterance that will trigger this task. If there are multiple utterances that can mean the same, Add alternate utterance.

Building FAQs from an existing source

Chances are the Knowledge Graph you are trying to build it huge and complex. If you have all the FAQs in one place you can use the Import or Extract process.

  • You can use Knowledge Graph Generator to generate Knowledge Graph from a FAQ list and import the same to your Bot. See here for the steps.
  • You can use the Import option to import a Knowledge Graph exported from another Bot. See here for more.
  • You can use an existing list of Q&As from Knowledge Extraction to populate the Questions and Responses. See here for more.

Step 4: Traits, Synonyms and Stop Words

You can improve the performance of your Knowledge Graph by adding tags, synonyms, traits and more. Refer here to know more.


Once created, there will be times when you want to make changes to the Knowledge Graph for better organization and presentation.

Note: After you make any changes to the Knowledge Graph, make sure to click the Train button to send the updates to the Knowledge Graph engine. If you do not train the bot, the changes are not reflected in the Bot responses.

By default, questions added to a child node are visible for all its parent nodes in the path, up to the root node. If you do not want the questions from child nodes to be seen beyond a certain parent node, click the following icon on the Questions panel of the selected parent.

The questions from all its child nodes will be visible to the selected parent node and not to all its parent nodes.

Moving Question and Answers Between Nodes

You can move one or more question-answer sets between nodes in your Knowledge Graph.

To move question and answers to the relevant nodes, follow these steps:

  1. On the Knowledge Graph, click the name of the node from which you want to move the question-answer sets. The FAQs appear on the right-hand panel.
  2. Identify the set of questions that you want to move to, and select the checkboxes next to them.
  3. Drag the questions and drop them on the relevant node. The node is highlighted and the questions appear on the right-hand panel of the node.

Editing and Deleting Terms

  1. On the nodes hierarchy from the left panel, hover the mouse over the term/node you want to edit.
  2. Click the edit icon. The settings window opens.
  3. You can change the name of the term, add traits, add or remove synonyms, set term usage, and manage context from here (see here for more).
  4. To delete a term:
    1. On the nodes hierarchy, hover the mouse over the term you want to delete.
    2. Click the bin icon.
    3. On the confirmation dialog, you will be given the following options:
      • Delete the FAQs along with the term‘ – Choosing this option would delete the term and FAQs under it.
      • Delete the term and move FAQs to root term‘ –
        Choosing this option would delete the term and move the FAQs under it to the root term.
        Note: If the term has child nodes, all those nodes will be deleted.
    4. If your Bot is already published you need to Train the Bot for the deletions to be effective.
      • If you have deleted the first level term you can selectively train to remove the deleted terms from the published copy.
      • If you have deleted, say, the nth level child term, then you need to select the entire parent term for training.

Editing Questions and Responses

  1. From the nodes hierarchy, select the relevant term.
  2. Questions associated with the term appear on the right-hand panel.
  3. Hover over the question to be edited and click the edit icon.
  4. Make changes to the question or response, and then click Save.
  5. You can delete the question using the bin icon.
  6. Selecting multiple questions, enables you do delete them in bulk.