graphallthethings.com

Trees, maps, and theorems

workshop.scios.tech

SciOS Graph — live graph

Your name rides along on whatever you add — questions, thoughts, connections, reactions. Just here to look? Close this and explore the graph; you can add your name any time.

www.panarchy.org

Tim Berners-Lee, Giant Global Graph (2007)

A new vision for the web where the users master their data and link them to everybody's benefit in a giant global graph.

oaklandlibrary.bibliocommons.com

The Edge of Fruitvale — Oakland Public Library

The Edge of Fruitvale — DaCosta, Rohan, — Poetry, prose, and photographs.

https://oaklandlibrary.bibliocommons.com/v2/record/S183C2300225 social preview image

www.sigmajs.org

Sigma.js

a JavaScript library aimed at visualizing graphs of thousands of nodes and edges

restofworld.org

Charts

A view of Rest of World through all our charts and graphics.

doi.org

Categorical Data Structures for Technical Computing

Many mathematical objects can be represented as functors from finitely-presented categories $\mathsf{C}$ to $\mathsf{Set}$. For instance, graphs are functors to $\mathsf{Set}$ from the category with two parallel arrows. Such functors are known informally as $\mathsf{C}$-sets. In this paper, we describe and implement an extension of $\mathsf{C}$-sets having data attributes with fixed types, such as graphs with labeled vertices or real-valued edge weights. We call such structures "acsets," short for "attributed $\mathsf{C}$-sets." Derived from previous work on algebraic databases, acsets are a joint generalization of graphs and data frames. They also encompass more elaborate graph-like objects such as wiring diagrams and Petri nets with rate constants. We develop the mathematical theory of acsets and then describe a generic implementation in the Julia programming language, which uses advanced language features to achieve performance comparable with specialized data structures.