* VByte（or VB ） / VarIntGB（or GroupVB ） / StreamVByte /MaskedVByte [http://maskedvbyte.org/ SIMD-accelerated VByte] / [https://github.com/lemire/MaskedVByte MaskedVByte]
* PEF (Partitioned Elias-Fano) [http://github.com/ot/partitioned_elias_fano Partitioned Elias-Fano]
* Data Structures for Inverted Indexes ([https://github.com/ot/ds2i ds2i])