Why knowledge graphs?

CASTEMO is a data collection workflow whose ultimate goal is to produce queryable, well-structured, research-oriented knowledge graphs. It features a comprehensive data model based on 11 entity types (SPECTRABLOG—Statements, Persons, Events, Concepts, Territories / Texts, Resources, Actions, Living Beings, Locations, Physical Objects, and Groups) and various connections between them, offering a flexible and comprehensive multi-languagelingual structure.

Statements model the syntactic structure of textual clauses and sentences and capture the semantics by linking entities. The knowledge graph is enhanced by three main kinds of connection between entities: Properties, References,Relations, and RelationsReferences. All those connections are considered optional in terms of the general data model, but they can be required by the guidelines of specific projects and the requirement can be enforced through the validation features of InkVisitorInkVisitor.

Properties are flexible and extensible structures  composed of an origin (the entity to which the Property is being attached), property type, and property value, and read with a “has” logic: e.g.: P current U.S. president — PROP — C area of authority—authority — L United States of America”.

References serve to relate knowledge to a specific Resource from which it has been derived.

Relations, of which there are seventeen types, serve to model core ontological (e.g. Classification, Identification) and semantic (e.g. Synonymy, Superclass) connections. 

References serve to relate knowledge to a specific Resource from which it has been derived.