OpenSource Connections Courses

Evaluating Search Features in Knowledge-Intensive Domains

Explore how AMBOSS developed and evaluated advanced search features like knowledge panels and vector search for medical information platforms without traditional metrics.

• YouTube
• 47 minutes
• Self-Paced
• Free Video

Beyond LLM-as-Judge Towards LLM Relevance Engineering

Explore advanced LLM ensemble techniques for search relevance engineering, moving beyond single judges to multi-strategy systems that guide feature development and optimization.

• YouTube
• 42 minutes
• Self-Paced
• Free Video

Building Relevance Formulas with LLMs for E-commerce Search

Explore building conversational e-commerce search using LLMs to create relevance formulas that balance user preferences like price, reliability, and personal taste through tensor-based scoring.

• YouTube
• 44 minutes
• Self-Paced
• Free Video

Behind the Hype - Managing Billion-Scale Embeddings

Discover real-world strategies for managing billion-scale vector databases in Elasticsearch and OpenSearch, moving beyond semantic search hype to tackle scalability and performance challenges.

• YouTube
• 45 minutes
• Self-Paced
• Free Video

Automatic FAQ - Building a Multi-Agent System to Extract Insights from User Discussions

Discover how to build multi-agent systems that automatically extract insights from user discussions across Discord, GitHub, and other platforms using open-source tools like Milvus and LangChain.

• YouTube
• 51 minutes
• Self-Paced
• Free Video

Beyond RAG - From Search to Analytics on Unstructured Data with Aryn

Explore advanced AI analytics on unstructured data using Aryn, moving beyond RAG to perform complex semantic analysis at scale with visual AI models and LLMs.

• YouTube
• 45 minutes
• Self-Paced
• Free Video

AI and LLM Strategies and Application at Mercari Search

Explore how Mercari re-architected their search system using AI and LLMs, covering end-to-end architecture, successful applications, and business ROI considerations for e-commerce.

• YouTube
• 47 minutes
• Self-Paced
• Free Video

Data-Driven Query Understanding to Supercharge Hybrid Search

Discover how to optimize hybrid search using machine learning for dynamic query adaptation, achieving 7%+ improvements in search quality metrics through data-driven parameter tuning.

• YouTube
• 42 minutes
• Self-Paced
• Free Video

Haystack US 2025 - Lightning Talks on Search, RAG, and AI Technologies

Explore cutting-edge search and AI techniques through rapid-fire presentations covering vector databases, RAG optimization, quantization methods, and emerging search technologies.

• YouTube
• 1 hour 10 minutes
• Self-Paced
• Free Video

Enhancing Generative AI Evaluation with Synthetic Raters

Explore innovative Synthetic Raters as cost-effective alternatives to human experts for evaluating AI-generated content across medicine, law, and finance domains.

• YouTube
• 43 minutes
• Self-Paced
• Free Video

From Traditional Keyword Search to AI-Powered Search

Discover how to evolve from traditional keyword search to AI-powered solutions, covering semantic expansion, KNN search, Learning to Rank, and practical implementation challenges.

• YouTube
• 55 minutes
• Self-Paced
• Free Video

Judge Moody's - Automating Semantic Search Relevance Evaluation with LLM Judges

Discover how Moody's automated semantic search evaluation using LLM judges, achieving 80% agreement with experts while cutting experiment time from days to minutes.

• YouTube
• 48 minutes
• Self-Paced
• Free Video

Innovation in the Age of Artificial Intelligence

Explore how AI reshapes work, creation, and innovation for technologists, learning practical habits to nurture inventive thinking and thrive in an AI-permeated future.

• YouTube
• 52 minutes
• Self-Paced
• Free Video

Lexical Love - Rediscovering the Power of Lexical Search in RAG

Discover how lexical search enhances RAG workflows, solving semantic search limitations with precise matching, transparent results, and practical implementation techniques.

• YouTube
• 44 minutes
• Self-Paced
• Free Video

Persona Based Evaluation of Search Systems

Discover how to automate search evaluation using AI personas that simulate diverse users, eliminating manual test cases while ensuring dynamic coverage across multi-modal content.

• YouTube
• 40 minutes
• Self-Paced
• Free Video