Apply SECOMPAX to work with WAH in bitmap index for FastBit. FastBit is a successful archival data management software using bitmap index to accerlate the query speed.

SECOMPAX is a new bitmap index encoding algorithm, it is a descent of COMPAX with new designed codebook. SECOMPAX is the abbreviation of Scope-Extended COMPressed Adaptive indeX. In Chinese, it named "展域压缩自适应索引."

SECOMPAX performs better compression ratio and fast encoding speed compared with the state-of-the-art bitmap index compression algorithm, such as WAH (Word-Aligned-Hybrid), PLWAH(Position list word aligned hybrid) and COMPAX (COMPressed Adaptive indeX).

If you feel interested in this work, please cite it as follows:

[1] Yuhao Wen et al. "SECOMPAX: A bitmap index compression algorithm." Computer Communication and Networks (ICCCN), 2014 23rd International Conference on. IEEE, 2014.

URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6911838.

[2] Zhen Chen et al., “A Survey of Bitmap Index Compression Algorithms for Big Data,” Tsinghua Science and Technology, 20(1), pp.100-115, February 2015.

URL: http://ieeexplore.ieee.org/xpls/articleDetails.jsp?arnumber=7040519.