Making User-Sequence Data More Cost-Efficient, Faster, and Easier to Use

Pinterest redesigned its user-sequence platform to improve cost efficiency and consistency.

• •User sequences are timestamped event lists with enrichments like embeddings and contextual features
• •Three workflows: real-time indexing, batch indexing for history, and online serving
• •Single signal definition prevents training-serving skew across runtimes
• •Architecture includes ingestion, enrichment engine, real-time indexer, batch backfill, and storage
• •Configuration-as-code enables declarative sequence definitions

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