Knowledge Graph vs. Schema

One last thing we need to cover: the difference between a knowledge graph and a knowledge graph schema.

A full knowledge graph will contain actual instance data. For example, a knowledge graph concerning music festivals would have an entry for South by Southwest in the city of Austin, TX.

What we’ve been discussing so far is the knowledge graph schema, i.e., the metadata about the knowledge graph that describes what concepts are and the relationships between them.

You’ll often hear people say ‘knowledge graph’ when they mean ‘knowledge graph schema’. To add another wrinkle, knowledge graph schema information can be stored with the data itself– so they aren’t exactly wrong.

Just remember this: if you’re talking about data, you’re talking about the knowledge graph itself. If you’re talking about the structure of the data & how it relates to each other, you’re probably talking about the knowledge graph schema.

Now that we have the basics covered, continue on to build your first knowledge graph.