PPM is an adaptive statistical data compression technique based on context modeling and prediction.
PPM是自适应统计数据压缩技术，基于上下文建模和预测。
SCMPPM combines a technique called structure context modeling (SCM) with the PPM compression scheme.
SCMPPM结合了称为结构上下文建模(SCM)的技术和PPM压缩方案。
An improved method has been proposed for the simple context modeling procedure in the entropy coding in SPIHT.
针对SPIHT编码过程中熵编码简单的上下文建模过程，提出了一种改进的方法。
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