Understanding Nodes

In the PET schema, Understanding Nodes represent the contextual basis or justification for relationships between nodes. They are not direct links themselves, but rather the explanation or source behind why an edge exists.

Purpose

Understanding nodes serve as the memory of why a connection was made, storing contextual details such as the source, time, and outcome of a learning or observation event.

Structure

An understanding node typically includes:

• id: Unique identifier for the understanding node
• source: Entity or context that taught or conveyed the information (e.g., “Father”, “Book”, “Experience”)
• time: (optional) Timestamp or reference to when this was learned or formed
• from: Originating node ID
• to: Target node ID
• result: The expected outcome or interpretation (e.g., “exist”, “non-exist”, “warning”, “beneficial”)
• details: (optional) Any additional description or qualifiers about the context or reliability

Example