e-tissage

Graphs are a very useful formal structure because you can represent in one place, the precise complexity of your data, by interrelating lists, hierarchies, categorizations and tables. You can also avoid being lost in complexity by choosing what to expose for a specific purpose, in any of those more basic formal structures.

Graphs are a very interesting structure to get the best of human thinking combined with automatic processing. Through a very intuitively graph based use case – genealogy – the following presentation at the Nodes 2022 conference takes genealogical researches as an example to illustrate possibilities that can be applied to many domain of research. It is demoing several graph issues and technologies, from data collection to visualization, including data transfer from one app to another:

• documentation collection, in a graph structure, with TheBrain Technologies application,
• Gramps visualizations based on a family tree specific layout algorithm
• Bloom for visual and interactive exploration of data structured in graph and
• yWorks to make precisely selected information of interest, stand out on a graph display
• as well as Neo4j graph database as a pivot technology, to make use of graph topology and graph pattern matching

Data collection and export/import process from TheBrain to Gramps via Neo4j are presented, graph models are discussed.

The purpose of the Choucas research project is to come up with methods, tools and resources, to help mountain rescue team localise victims, when answering emergency calls. In this context, we have built a graph data base with the Neo4j Label Property Graph (LPG) technology, that integrates several sources of geolocated objects. Some data comes from the national mapping agency (IGN BDTOPO), others, like routes from crowdsourcing websites. Categorization of multi-source imported data has been normalized by an instantiation process based on the Landmarks Objects Ontology (OOR) that had previously been produced by the project team.
The flexibility of graph databases helps make the right modelling choices by progressively taking into account problems observed in the data as well as researchers and users feedback and new needs.

A more in depth presentation of this work, with a demo of a python script to display the content of the database on a map, with QGIS can be seen here.

Here is the presentation of this work done at the International Cartographic Conference, on 15th Dec. 2021 : Lire la suite »

At NODES2020, I’ve presented about graphs for humans : how to manually build a graph structured documentation with TheBrain Technologies, and why this graph writing is so useful.

Also how cypher (Neo4j *) can be used to automatically extract tables or hierarchies needed for specific contexts of use of this documentation.

Along the way, I’ve exposed some ideas about Information Design, the way I see it, that is including all that concerns representation of information but also structuring and the way they are interrelated.

Ce matin, à Paris Web, Grandin Donovan et Claudio Vandi faisaient une intéressante présentation de documents numériques existants sur différentes plateformes, en les classant par type de fonctionnalités proposées.

A retenir:

Entre les applications et les livres numériques, la frontière est très très floue.

Avec un peu de chance, la présentation ne devrait pas tarder à être en ligne ici.

Cet après-midi, atelier sur les formats de l’édition proposé par Valérie Ferrière au labo de l’édition.

Demain, alors que Mikael Randy pose (toujours à Paris Web), la question pertinente « Le livre numérique : et si c’était du web ? », le Syndicat de la Presse Indépendante d’Information en Ligne a mis à l’ordre du jour de la 3e édition de la Journée de la Presse en Ligne, des tables rondes sur le thème « Produire du contenu pour des supports mobiles » et « De la rotative à la tablette, un nouvel écosystème ? Éditeurs, innovons ! »

L’édition numérique en France serait-elle en train de se secouer les puces ?