Applied Sciences & Engineering Computing & CybersecurityENAre Vector Databases Still Needed? RAG, AI Agents & SearchMartin Keen (IBM Technology)November 5, 2026 10 min★ ★ ★ ★ ☆ 4/5Vector DatabaseRAGAI Agents
Applied Sciences & Engineering Computing & CybersecurityENPostgreSQL Hybrid Search Course – Keyword (BM25) + Vector RetrievalBeau CarnesOctober 21, 2026 60 min★ ★ ★ ★ ☆ 4/5PostgreSQLBM25Vector Search
Applied Sciences & Engineering Computing & CybersecurityENFrom Inventory to Accelerator: What Happens When a Large AI Org Builds Data Products No One Can FindMendelsohn ChanAugust 11, 2026 29 min★ ★ ★ ★ ☆ 4/5Data GovernanceAI AgentsData Products
Formal & Physical Sciences Computing & CybersecurityENA Fun & Absurd Introduction to Vector Databases • Alexander Chatzizacharias • GOTO 2025Alexander ChatzizachariasJune 10, 2026 45 min★ ★ ★ ★ ☆ 4/5Vector DatabasesEmbeddingsSemantic Search
Applied Sciences & Engineering Computing & CybersecurityENLexical, Vector & Hybrid Search with Elasticsearch • Carly Richmond • GOTO 2025Carly RichmondDecember 17, 2025 36 min★ ★ ★ ★ ☆ 4/5ElasticsearchVector SearchLexical Search
Humanities, Social Sciences & Thought Computing & CybersecurityENKaren Sparck-Jones: Automatic Information & Language Processing: Rethinking EvaluationKaren Sparck-JonesDecember 12, 2025 83 min★ ★ ★ ★ ☆ 4/5EvaluationInformation RetrievalSpeech Recognition
Applied Sciences & Engineering Computing & CybersecurityENBeginner’s Guide to Metadata: Make Your RAG Agents SmarterNate Herk | AI AutomationJuly 23, 2025 15 min★ ★ ★ ★ ☆ 4/5RAGMetadataN8n
Formal & Physical Sciences Computing & CybersecurityENElasticsearch Course for BeginnersImad SaddikDecember 11, 2024 299 min★ ★ ★ ★ ★ 5/5ElasticsearchSearch EnginePython