GraphRAG: Why Vectors Aren't Enough and Your AI Needs a Knowledge Graph

You ask your RAG system: ‘What are the cross-cutting themes and operational risks across 500 enterprise audit reports?’. Your vector database fails because it only understands word proximity, not relationships. GraphRAG merges knowledge graphs, hierarchical community detection, and LLMs to transform unstructured data into a navigable cognitive map.

September 25, 2026 · Datalaria

Wallapop: The Invisible Engineering Behind Europe's Largest Circular Marketplace

Upload a photo of a bicycle to Wallapop. In under 200 milliseconds, a cascade of real-time Machine Learning models classifies the item, estimates optimal pricing, runs fraud detection, and computes avoided CO₂ emissions. Behind Spain’s most famous second-hand app lies one of Europe’s most sophisticated data and ML architectures, culminating in its acquisition by Asian tech giant NAVER.

August 31, 2026 · Datalaria