AI SEARCH CITATION ATLAS · SOURCE OVERLAP NOTE
Gemini × Perplexity: change after normalization
Removing only a leading www. prefix changes this pair by 448 shared hostnames and 5.58 percentage points of Jaccard overlap. This is a sensitivity result, not a quality ranking.
What the number measures
Jaccard overlap compares the intersection of two unique hostname sets with their union. The measurement is limited to the supplied May 2026 citation snapshot.
Method and source
Public 15-pair source matrix · machine-readable evidence object
Boundary
- This card is not an independent study; it is one view of the same 15-row source matrix.
- It does not establish current platform behavior, answer use, agent intent, payment intent, or actual machine-resource consumption.
Confidence: high for reproducing this supplied value; limited for current behavior and any conclusion outside this matrix.
asca:citation-note-gemini--perplexity--normalization-delta@2026-08-27.v1