Extract Personal Data with a Self-Hosted LLM Mistral NeMo

This workflow utilizes the self-hosted large language model Mistral NeMo, triggered by chat messages, to intelligently extract users' personal information data. It combines structured output parsing and an automatic correction mechanism to ensure that the extracted data complies with JSON format specifications, enhancing the accuracy and reliability of the data. It is suitable for businesses and developers that require efficient and accurate handling of personal information, particularly teams that emphasize data privacy and self-hosted solutions. This significantly improves the automation level of customer information collection and reduces manual intervention.

Workflow Diagram
Extract Personal Data with a Self-Hosted LLM Mistral NeMo Workflow diagram

Workflow Name

Extract Personal Data with a Self-Hosted LLM Mistral NeMo

Key Features and Highlights

This workflow leverages a self-hosted large language model (LLM), Mistral NeMo, triggered by chat messages to intelligently extract users’ personal data. Its key strengths lie in combining structured output parsing with an automatic correction mechanism, ensuring that the extracted data conforms to predefined JSON format specifications, thereby enhancing data accuracy and reliability.

Core Problems Addressed

Traditional information extraction methods often struggle to guarantee structured and accurate outputs, especially when handling sensitive personal data. This workflow ensures data security through a self-hosted model and resolves issues of unstructured extraction and high error rates by employing multi-round automatic verification and correction.

Application Scenarios

  • Automatically extracting customer contact information and conversation content in customer service chatbots
  • Automated data collection for user information registration and management systems
  • Extracting critical personal data from unstructured dialogues in scenarios such as sales lead capture and customer relationship management (CRM)

Main Process Steps

  1. Chat Message Trigger: Listen for and trigger on incoming chat messages via a Webhook.
  2. Invoke Mistral NeMo Model: Use the Ollama Chat Model node to call the self-hosted Mistral NeMo LLM for text understanding and information extraction.
  3. Basic LLM Chain Parsing: Input the message content into a basic LLM chain to generate preliminary JSON-formatted data.
  4. Structured Output Parsing: Validate the model output against structured JSON format requirements to ensure field completeness and compliance.
  5. Automatic Output Correction: If structured parsing fails, automatically invoke a correction mechanism that repeatedly requests the model to rectify the output.
  6. Extract Final JSON Data: Output the final, compliant personal information data for downstream system use.

Involved Systems or Services

  • Self-Hosted Large Language Model: Mistral NeMo (accessed via the Ollama platform)
  • n8n Core Nodes: Webhook trigger, LLM invocation node, structured output parser, automatic correction parser, data setting node

Target Users and Value Proposition

This workflow is ideal for enterprises and developers requiring efficient, accurate, and compliant extraction of personal information from text conversations. It is especially valuable for technical teams prioritizing data privacy and seeking to reduce external dependencies by self-hosting AI models. The workflow significantly enhances automation in customer data collection, minimizes manual intervention, and improves overall business process efficiency.