Knowledge bases

A knowledge base (also called a collection) is where your company’s knowledge lives in Nebulas. Assistants with the knowledge search tool answer from it and cite the passages they used.

A knowledge base can hold three kinds of content:

Documents

Unstructured content: PDF, Word, web pages, audio, video and more. It is indexed for semantic search, so assistants find the passages that answer a question.

Data tables

Structured records with typed columns, such as customers, products or tickets. Assistants query them in natural language and can add or update rows. See Data tables and time series.

Time series

Metrics recorded over time, such as page views, sales or response times, to track your stats and plot them. See Data tables and time series.

My Files, your personal knowledge

Every user has a personal knowledge base called My Files. Open it from the My Files tab of the chat sidebar, in any workspace, to upload files and use them in your conversations.

My Files is private: only you can access these files, and it can’t be shared with other people or teams. Use it for your own documents, drafts and files you don’t want to expose to others.

To make a file available to your team, move or copy it from My Files to a shared knowledge base.

Create a knowledge base

1. Open Knowledge from the left rail and click New knowledge base.

2. Give it a name and a description of what it contains. The description helps assistants decide when to search it.

3. Choose who owns and sees it:

   • Declare as a team resource to make it owned by a team. Team members then manage its access together. You need the Team Editor or Owner role.
   • Confidential to make it private. Only invited users can access it, and it doesn’t appear when others browse knowledge.

4. Keep the default settings unless you have a specific need, and create it.

Add documents

Open the knowledge base, then add content from the Files tab:

• Upload files. Drag and drop PDF, Word, text, audio or video files.
• Add a web page. Paste a URL, and Nebulas fetches and indexes the page.
• Import from SharePoint or Google Drive. Pick documents from a site or a drive. This needs a connection to that service first.
• From a chat. Add an answer, an attached file or a generated artifact to a knowledge base straight from a conversation.

Documents are processed in the background. Once indexed, they become searchable by the assistants that use this knowledge base.

Tip

The Analysis tab shows what the knowledge base contains by file type and topic, and can find and remove duplicates so assistants don’t cite the same content twice.

The tabs of a knowledge base

Tab	What you find there
Files	The documents, with their processing status.
Tables	The data tables of the knowledge base.
Time Series	The time series and their graphs.
Analysis	File types, topics and duplicate detection.
Access	Who can view, edit or own the knowledge base: people, teams and service accounts.
Activity	What changed recently and who did it.

Use it in an assistant

A knowledge base does nothing on its own. To have it answer questions:

1. Add it to a workspace, so its members can use it.
2. Give an assistant the knowledge search tool with this knowledge base, or the datatable tool for its tables.

Assistants only search knowledge bases the person asking has access to.