What GVS is
GVS (Generative Visibility Score) is AUTHON's metric for citation and surfacing visibility in AI answers and generative search.
Measurement principles
- Axis separation: crawlable → indexed → surfaced → citation selected → answer absorption → re-measure. Each axis is measured independently (schema validity alone does not equal success).
- Causal isolation (matched-pair): publish article pairs that differ only in the test variable to measure the differential, isolating confounds (engine updates, competitors, query drift).
- Per-engine isolation: Google and Naver are measured on separate axes (GVS / GVS-N).
See the measurement-protocol document in this repository for the full protocol.