Roaring bitmaps are compressed bitmaps, can be 100x faster

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com
Projects Go Data structures Bitmap Java

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  • RoaringBitmap

    A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

  • libu8ident

    unicode security guidelines for identifiers

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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  • featurebase

    Discontinued A crazy fast analytical database, built on bitmaps. Perfect for ML applications. Learn more at: http://docs.featurebase.com/. Start a Docker instance: https://hub.docker.com/r/featurebasedb/featurebase

    • Featurebase[1] is a database based on bitmaps. (Formerly known as Piloasa) I'm not sure if they actually use Roaring Bitmaps [2] or they implemented it themselves. Either way it's based on the idea of compressed bitmaps.

    [1] https://github.com/FeatureBaseDB/featurebase

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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