A production ad-matching system expands seller keywords with embeddings, cluster-adaptive thresholds, and a stacked relevance model, yet its A/B data do not show the claimed CTR and relevance gains.
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Improving Ad matching via Cluster-Adaptive Keyword Expansion and Relevance tuning
A production ad-matching system expands seller keywords with embeddings, cluster-adaptive thresholds, and a stacked relevance model, yet its A/B data do not show the claimed CTR and relevance gains.