e-tissage

Outils numériques pour êtres humains
Digital tools for humans

Why is a graph structure, the best way to organize complex data ?

Véronique Gendner

10 avril, 2025

Catégorie(s): Graphes, in English

Visually analysing data with a graph structure and the yWorks Project Jupyter module

The yFiles Graphs for Jupyter widget exists for different graph technologies : Networkx✅, igraph✅, neo4j✅, pygraphviz✅ and any structured Python dictionaries and lists https://www.yworks.com/products/yfiles-graphs-for-jupyter

Véronique Gendner

16 décembre, 2024

Catégorie(s): Uncategorized

My Cypher Query Takes Too Long. What can I do ?

The purpose of this talk given at NODES 2024 is to

  • give general understanding of how the cypher query planner works and the kind of things you need to know to analyses what takes times in a query processing
  • give some insight on how to use EXPLAIN and PROFILE to identify what takes time in running a specific query
  • give examples for you to build a better understanding of how cypher works under the hood
  • Fine-tuning for real time constrains or other very demanding performance constrains will NOT be addressed. This talk is for general understanding of difficulties to traverse graphs, hints about how the query planner plans query processing and some guidelines about the different parameters query processing time depends upon.

    Lire la suite »

Véronique Gendner

6 novembre, 2024

Graphs & LLM : a visual introduction

  • Explore Core Concepts – Gain a foundational understanding of how graph technologies enhance Generative AI applications. Learn about essential terms and concepts such as embeddings, vector search, and Graph #RAG.
  • Learn about the #Neo4j property graph model – Understand how it can be leveraged to structure and query data effectively.
  • Understand Limitations and Opportunities – Identify some of the current limitations of integrating graphs with LLMs and explore opportunities for overcoming these challenges.
  • Receive Practical Resources – Walk away with a cheat sheet that includes technical basics, helpful documentation, and essential resources. You’ll also receive code examples for Neo4j and #LangChain to help you get started.

Whether you’re new to the potential of combining graphs with LLMs or need to convey these ideas to non-technical colleagues, this talk will help you move forward!

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Véronique Gendner

12 septembre, 2024

Introduction To Cypher

Slides & hands-on curriculum of the Introduction to Cypher presented in Malmö, Sweden for Pink Programming

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Véronique Gendner

27 mars, 2024

Catégorie(s): Graphes, in English