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Title & Speakers	Event
HH DS + ML Meetup at cronn 2025-08-28 · 16:15 Register: https://www.meetup.com/de-DE/hamburg-data-science-meetup/events/310344244/ Welcome to the August version of our Data Science + Machine Learning Meetup Hamburg! Neo4j Session: Martin Preusse, Partner & Founder, Kaiser & Preusse 🔗 LinkedIn Neurosymbolic AI with LLMs and Knowledge Graphs This talk outlines a neurosymbolic approach—combining neural LLMs with symbolic knowledge graphs and ontologies—for practical data-science workflows. We’ll introduce GraphRAG: building a graph from your corpus and using graph structure and summaries to retrieve context, contrasted with text-only RAG. We’ll then use ontologies and SHACL constraints as machine-checkable contracts to scope prompts and validate model outputs. Finally, we’ll discuss using LLMs for entity harmonization and for bootstrapping vocabularies/ontologies, with notes on accuracy, cost, and human oversight. For context, we’ll situate these patterns in recent work on neurosymbolic AI.	HH DS + ML Meetup at cronn

Welcome to the August version of our Data Science + Machine Learning Meetup Hamburg!

Neo4j Session:

Martin Preusse, Partner & Founder, Kaiser & Preusse 🔗 LinkedIn Neurosymbolic AI with LLMs and Knowledge Graphs

This talk outlines a neurosymbolic approach—combining neural LLMs with symbolic knowledge graphs and ontologies—for practical data-science workflows. We’ll introduce GraphRAG: building a graph from your corpus and using graph structure and summaries to retrieve context, contrasted with text-only RAG. We’ll then use ontologies and SHACL constraints as machine-checkable contracts to scope prompts and validate model outputs. Finally, we’ll discuss using LLMs for entity harmonization and for bootstrapping vocabularies/ontologies, with notes on accuracy, cost, and human oversight. For context, we’ll situate these patterns in recent work on neurosymbolic AI.

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