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Vector database as a big data analysis tool for AI agents [3/3 - anomaly]

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Vector Database as a Big Data Analysis Tool for AI Agents Workflows from the webinar "Build production ready AI Agents with Qdrant and n8n". This seri...

Best for

  • Engineering automation workflows
  • AI Summarization automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.httprequest, n8n-nodes-base.code, n8n-nodes-base.set, n8n-nodes-base.executeworkflowtrigger

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Jenny .

Original n8n.io source

1.1 Workflow description

Title
Vector database as a big data analysis tool for AI agents [3/3 - anomaly]
Workflow name
Vector database as a big data analysis tool for AI agents [3/3 - anomaly]

Vector Database as a Big Data Analysis Tool for AI Agents

Workflows from the webinar "Build production-ready AI Agents with Qdrant and n8n".

This series of workflows shows how to build big data analysis tools for production-ready AI agents with the help of vector databases. These pipelines are adaptable to any dataset of images, hence, many production use cases.

  1. Uploading (image) datasets to Qdrant
  2. Set up meta-variables for anomaly detection in Qdrant
  3. Anomaly detection tool
  4. KNN classifier tool

For anomaly detection

  1. The first pipeline to upload an image dataset to Qdrant.
  2. The second pipeline is to set up cluster (class) centres & cluster (class) threshold scores needed for anomaly detection. 3. This is the third pipeline --- the anomaly detection tool, which takes any image as input and uses all preparatory work done with Qdrant to detect if it's an anomaly to the uploaded dataset.

For KNN (k nearest neighbours) classification

  1. The first pipeline to upload an image dataset to Qdrant.
  2. The second is the KNN classifier tool, which takes any image as input and classifies it on the uploaded to Qdrant dataset.

To recreate both

You'll have to upload crops and lands datasets from Kaggle to your own Google Storage bucket, and re-create APIs/connections to Qdrant Cloud (you can use Free Tier cluster), Voyage AI API & Google Cloud Storage.

[This workflow] Anomaly Detection Tool

This is the tool that can be used directly for anomalous images (crops) detection. It takes as input (any) image URL and returns a text message telling if whatever this image depicts is anomalous to the crop dataset stored in Qdrant.

  • An Image URL is received via the Execute Workflow Trigger, which is used to generate embedding vectors using the Voyage AI Embeddings API.
  • The returned vectors are used to query the Qdrant collection to determine if the given crop is known by comparing it to threshold scores of each image class (crop type).
  • If the image scores lower than all thresholds, then the image is considered an anomaly for the dataset.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note1

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 2 - Embed image

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 3 - Get similarity of medoids

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 4 - Compare scores

Type / Role
n8n-nodes-base.code - code
Config choices
Version 2

Block 5 - Sticky Note4

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 6 - Variables for medoids

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 7 - Sticky Note3

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 8 - Info About Crop Labeled Clusters

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 9 - Total Points in Collection

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 10 - Each Crop Counts

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 11 - Image URL hardcode

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 12 - Execute Workflow Trigger

Type / Role
n8n-nodes-base.executeWorkflowTrigger - executeWorkflowTrigger
Config choices
Version 1

Block 13 - Sticky Note2

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 14 - Sticky Note5

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 15 - Sticky Note6

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 16 - Sticky Note7

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 17 - Sticky Note22

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

3. Summary Table

Workflow Vector database as a big data analysis tool for AI agents [3/3 - anomaly]
Complexity advanced
Nodes 17
Categories Engineering, AI Summarization
Author Jenny
Published 19 Dec 2024

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/2656/2656.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Vector database as a big data analysis tool for AI agents [3/3 - anomaly] do?

Vector Database as a Big Data Analysis Tool for AI Agents Workflows from the webinar "Build production ready AI Agents with Qdrant and n8n". This seri...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Engineering, AI Summarization use case.