Apache Flink

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

RTBkit is an open-source software package that allows you to create and deploy a Real Time Bidder for display advertising.

SSDB - A fast NoSQL database, an alternative to Redis

Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs,…

A python library for implementing a recommender system

C library for estimating cardinality in streams for which it is infeasible to store all events in memory