Technology correspondent · MSc, Computer Science
Marcus Okonkwo covers artificial intelligence and search for DataBackedNews, focused on what the measurements actually show once the marketing is stripped away. He reads the papers so you don't have to — and cites them so you can.
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A synthesis of four peer-reviewed studies on how AI search decides what to cite — covering visibility instability, the discovery gap, content structure, and the earned-media bias. Every figure sourced and dated.
A 112-product study found AI models recognize products by name 99% of the time but surface them in category searches just 3–8% of the time — and on-page GEO optimization did nothing to close the gap.
A St. Gallen study tracked four AI engines for six weeks and found the sources they cite overlap only 34–42% between consecutive days. AI visibility is a distribution, not a ranking — and needs 7–8 measurements to pin down.