头压缩算法是一种常用的稀疏数组压缩算法，在数据联机分析处理（OLAP）等领域有着重要

应用。针对头压缩算法的特点，给出基于STL 的实现方法，并对解压算法进行改进。仿真实验表明，改进

后的解压算法的计算效率要优于原有解压算法-Head-compress algorithm was a commonly used algorithm for compressing sparse array, which was widely applied

in OLAP(Online Analytic Processing). According to the speciality of the head-compress algorithms, the implementation

based on STL(Standard Template Library) was presented, which improved on the decompressing process. The stimulation

results showed that the improved algorithm was more efficient.