This tutorial provides a comprehensive guide on using Google's LangExtract library to transform unstructured text into machine-readable structured data. By leveraging OpenAI models, the guide demonstrates how to build reusable extraction pipelines for various document types such as legal contracts, meeting notes, and product announcements. The workflow includes setting up dependencies, designing precise prompts with example annotations for grounding, and implementing interactive visualizations of extracted entities.
Key topics covered:
- Implementing structured data extraction using LangExtract and OpenAI
- Designing prompt templates and providing few-shot examples for entity recognition
- Building specialized pipelines for contract risk analysis and meeting action item tracking
- Handling long-document intelligence and batch processing workflows
- Visualizing extracted information through HTML and organizing results into tabular datasets via Pandas
Key topics covered:
- Implementing structured data extraction using LangExtract and OpenAI
- Designing prompt templates and providing few-shot examples for entity recognition
- Building specialized pipelines for contract risk analysis and meeting action item tracking
- Handling long-document intelligence and batch processing workflows
- Visualizing extracted information through HTML and organizing results into tabular datasets via Pandas
This article discusses how to apply vision language models (VLMs) to document understanding, covering application areas like agentic use cases, question answering, classification, and information extraction, as well as limitations like cost and processing long documents.
Google has introduced LangExtract, an open-source Python library designed to help developers extract structured information from unstructured text using large language models such as the Gemini models. The library simplifies the process of converting free-form text into structured data, offering features like controlled generation, text chunking, parallel processing, and integration with various LLMs.
We introduce NuExtract, a lightweight text-to-JSON LLM. NuExtract allows to extract arbitrarily complex information from text and turns it into structured data.
This article explores NuExtract, a family of Small Language Models (SLMs) for extracting structured data from text. The author, Fabio Matricardi, discusses using NuExtract to process candidate CVs for a database and highlights its benefits for privacy protection and running on less powerful computers.
NuExtract is a fine-tuned version of phi-3-mini for information extraction. It requires a JSON template describing the information to extract and an input text. Provides tiny (0.5B) and large (7B) versions.
NuExtract is a 3.8B parameter information extraction model fine-tuned from phi-3, designed to extract structured data from text using a JSON template.
A prompt template containing prompting techniques that have worked for the author on over a dozen nuanced medical information extraction tasks.
Extract structured data from remote or local LLM models. Predictable output is essential for any serious use of LLMs.
Extract data into Pydantic objects, dataclasses or simple types.
Same API for local file models and remote OpenAI, Mistral AI and other models.
Model management: download models, manage configuration, quickly switch between models.
Tools for evaluating output across local/remote models, for chat-like interaction and more.
No matter how well you craft a prompt begging a model for the output you need, it can always respond something else. Extracting structured data can be a big step into getting predictable behavior from your models.
Extract data into Pydantic objects, dataclasses or simple types.
Same API for local file models and remote OpenAI, Mistral AI and other models.
Model management: download models, manage configuration, quickly switch between models.
Tools for evaluating output across local/remote models, for chat-like interaction and more.
No matter how well you craft a prompt begging a model for the output you need, it can always respond something else. Extracting structured data can be a big step into getting predictable behavior from your models.
