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embedding freshness 1low-rank approximation 1online updating 1recommender systems 1sketching 1

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1 paper

cs.LG2026

Mutable Low-Rank Sketches for Retrain-Free Recommendation

Hector J. Garcia, Nick Clayton

The paper introduces mutable low‑rank sketches that store user preferences in a KP‑tree and update embeddings instantly as new ratings arrive, eliminating the need for periodic mod…