Graph is…
- a mathematical concept
- data structures
- graph algorithms, like, shortest path or PageRank
- graph databases
Graphs are used everywhere:
- building route in maps
- fraud analysis
- internet search
- and many more
I mainly interested in graphs as knowledge representation
Other relevant subjects:
- graph visualisation
- metadata translation
- graph query languages
- storing graph data in relational databases
- RDF vs LPG
- Data catalogs
- Ontologies
Another good source