Stars
Software in C and data files for the popular GloVe model for distributed word representations, a.k.a. word vectors or embeddings
Multi-format archive and compression library
Hydra: Column-oriented Postgres. Add scalable analytics to your project in minutes.
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
Columnar storage extension for Postgres built as a foreign data wrapper. Check out https://github.com/citusdata/citus for a modernized columnar storage implementation built as a table access method.
New generation entropy codecs : Finite State Entropy and Huff0