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Finn Hertsch

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Jul 2026

Kairos: Numerically Robust News Recommendation under Item Cold-Start via Cholesky-based LinUCB

Algorithmic news personalization in regional markets often fails because modern deep learning models require massive interaction data while real-world news has a short Time-to-Live (TTL<48 h) and shallow article pools. This structural item cold-start deprives collaborative filtering of the data needed for robust modeli...

Finn Hertsch · 0 citations

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