2. The Knowledge Graph
TRIPLE STORE
1. “German Precision”
2. Academic Provenance
3. Things, not Strings
4. Pro: W3C Standard
1. Stable and Known
5. Con: Reification and Purism
1. Overhead
PROPERTY GRAPH
1. “Wild Barbarians”
2. Industry Provenance
3. Things and Strings
4. Pro: Hashing over Reification
1. Influenced by “Coding by Convention” camp
5. Con: No Standard Yet
1. O.M.G.? Oasis?
4. Reification
It gets worse
Anand says:
“Hamlet was written in 1854”
And he knows this because
“Anand was influenced by a Wikipedia
article that Craig edited”
5. Property Graphs
• Unlimited key/value at any vertex or edge in
the graph
• The order of properties (in this case)
determines the provenance chain order
• Subject to interpretation error
• Easy, easy, easy
• Easy to write
• Easy to query
• Easy to understand
• Convention over Configuration