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Document Processing and Retrieval with LangChain in JavaScript

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Details

Provider

CodeSignal
Pricing

Free Certificate
Languages

English
Certificate

Certificate Available
Duration & workload

2 hours
Sessions

On-Demand
Level

Intermediate

Found in

Part of

Talk to Your Documents with LangChain and JavaScript

Overview

Unlock the power of document intelligence with LangChain in JavaScript. This course will teach you how to efficiently process and retrieve information from documents. Learn to load, split, and embed documents, and master the art of similarity search to extract relevant insights. Build a robust foundation for document-driven applications with cutting-edge techniques.

Syllabus

Unit 1: Loading and Splitting Documents with LangChain

Loading and Inspecting PDF Documents
Switching to Text File Loading
Experiment with Document Splitting Parameters
Exploring Different Text Splitters
Loading and Splitting PDF Documents

Unit 2: Generating Document Embeddings with OpenAI

Generating Embeddings from PDF Document Chunks
Experiment with Embedding Parameters
Troubleshoot the Embedding Model Bug
Exploring Embedding Dimensionality

Unit 3: Retrieving Relevant Information with Similarity Search

Exploring Document Processing and Embeddings with FAISS
Similarity Search with FAISS on a Document
Adjusting the Number of Retrieved Document Chunks
Vector Store Creation and Similarity Search with FAISS

Unit 4: Asking Questions with Retrieved Context and Templates

Creating Dynamic Chat Prompts with Templates
Merging Document Chunks for Context Creation
Integrating Context into Structured Prompts
Engaging with Chat Models Using Formatted Prompts
Guiding Model Responses with Contextual Prompts

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