Attribute (Atrybut)

Attribute (Atrybut) is a characteristic describing an entity in the EAV model — a specific property or fact associated with a subject entity. Attributes are classified as UNIQUE (differentiators), ROOT (definitional characteristics, always present), and RARE (additional, rarely covered). Presentation order in text is mandatory: UNIQUE at the top (H1, lead), ROOT in the middle (H2), RARE at the bottom (H3, FAQ). Attribute filtering uses the three-criteria RPP framework: Relevance, Prominence, Popularity. All three conditions must be met simultaneously.

For example, for the entity Cortisol, the attribute 'stress hormone' is UNIQUE (differentiator), 'hormone type' is ROOT (definition), and 'cortisol and fertility' is RARE (covered by 1/10 of pages).

In practice, use the Attribute Classifier skill to automatically classify attributes extracted by the EAV extraction tool; this determines the entire article structure.