Kafka App? There’s a Skill for That

Etsy is home to over 100 million listings from 5.6 million active sellers. Because the items for sale are unique and creative, there is no standard product catalog that tells us what they are. When someone searches for “light linen dress for summer,” our models must infer what the shopper means and what the listings contain. They do that using data from user visits and Etsy listings. We use Kafka for streaming data. These data streams provide fresh features and embeddings that power our machine learning models. If a shopper favorites a hand-painted ceramic mug, that action can shape their reco

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