vector-search

2 articles

DATA
◆Big Data Deep Dive · Part 8

Big Data on AWS Deep Dive (Part 8): Online Feature Stores — DynamoDB, ElastiCache, and OpenSearch k-NN

How recommendation systems serve features at inference time: DynamoDB for user features, ElastiCache for hot caching, OpenSearch k-NN for vector recall, and Neptune for graph retrieval.
AI

How to Build a RAG System with LangChain and Elasticsearch

A hands-on guide to building Retrieval Augmented Generation — from vector embeddings to context-enhanced LLM answers.