Graph schema
A graph schema is a specification of permitted node types, relationship types, properties, and structural constraints in a graph.
Graph Neural Networks in Action
A graph schema is a specification of the permitted node types, edge types, properties, and structural rules of a graph.
- How it is used
- Specifies how a graph dataset is represented in a system and supplies rules for checking its integrity.
- How deep it goes
- Works through elements, constraints, conceptual versus system schemas, and iterative integrity testing without prescribing one database implementation.
- Examples
- Uses recruitment-network checks for candidate attributes, Knows edges, and unique IDs, alongside diagrams with increasing node and edge types.
- What you can do after
- Build it from scratch by defining graph elements and constraints, mapping them to a system, and testing graph instances.
Read how Graph Neural Networks in Action explains graph schema →
Graph Algorithms for Data Science
A graph schema is a specification of the permissible node categories, relationship types, properties, and structural constraints in a graph.
- How it is used
- Guides iterative graph modeling and communicates which labels, relationships, and properties support planned network queries.
- How deep it goes
- Explains LPG schema notation and practical omissions, but stops short of formal standards for direction, optionality, or uniqueness.
- Examples
- Uses Twitter users, tweets, hashtags, links, follows, retweets, and inferred amplification relationships.
- What you can do after
- Build it from scratch by combining modeling decisions into a self-describing schema and reserving inferred edges for later validation.
Read how Graph Algorithms for Data Science explains graph schema →
Related concepts
- schemakind of · A data schema is a formal specification of the structure, fields, types, relationships, and constraints of data.
- node labelhas part · A node label is a categorical marker assigned to a graph node to identify its type, role, or semantic class.
- attributehas part · An attribute is a named property, value, or piece of information associated with an entity, object, or program element.
- property graphuses · A property graph is a graph data model in which nodes and the edges connecting them can have labels and key-value properties.
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