The Problem with Timeseries Data in Machine Learning Feature Systems

Introduction The Feature Systems team at Etsy is responsible for the platform and services through which machine learning (ML) practitioners create, manage and consume feature data for their machine learning models. We recently made new real-time features available through our streaming feature platform, Rivulet, where we return things like “most recent add-to-carts.” While timeseries data itself wasn’t new to our system, these newer features from our streaming feature service would be the first...

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