2021-05-19 Notes from GraphCommons / mapping networks

(https://medium.com/graph-commons/mapping-networks-1dea70b2f550)

Four general categories of network relationships (?)

1. Transmission networks: Connection is something that flows (water, electricity, money, news ...). Connection can be broken like a physical pipe.

2. Interaction networks: Connection is an event with a specific time (any perhaps place?) (send an email, have a meal, put on a show together, hand-off a document ...). Connection is explicit.

3. Attribution networks: Connection is an expression of a relationship (we are friends, I trust you, she recognizes you ...) Visible only if you state it.

4. Affiliation networks: Connection is belonging to a group or category (we attend the same school, things are in the same category, organizations connected by board members). Linked by correlation, similarity, or membership. Implicit.

Note: these type descriptions are a bit fuzzy, but the distinctions seem to have some value.

Graphs can be represented or built up from two tables.

• Nodes table: list of nodes and their properties

• Edges table: list of relations with "Edge Type" between two node types.