BWhat changed
Clustered user actions in a fixed pin-embedding space with hierarchical Ward clustering, represented each cluster by a medoid and sampled important medoids for retrieval using daily and online updates.
Scientific scope
Clustered user actions in a fixed pin-embedding space with hierarchical Ward clustering, represented each cluster by a medoid and sampled important medoids for retrieval using daily and online updates. Uses existing PinSage embeddings, Ward clustering and approximate nearest-neighbor search. A variable number of stored interests does not mean all are queried: the described retrieval samples three medoids. Oracle comparisons inspect future actions and are not a deployable predictor; empirical engagement gains do not establish complete understanding of user interests.
Evidence
The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Uses existing PinSage embeddings, Ward clustering and approximate nearest-neighbor search. A variable number of stored interests does not mean all are queried: the described retrieval samples three medoids. Oracle comparisons inspect future actions and are not a deployable predictor; empirical engagement gains do not establish complete understanding of user interests.
Contributors
- Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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