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。
First, the new scheme of a lossless data compression based on neural network is given by using non-statistical method.
本文首先采用非统计的方法给出了基于神经网络的无损数据压缩新方案。
There are new contents and significance on data compression to statistical databases.
在统计数据库中，数据压缩有其新的内容和意义。
There are new contents and significance on data compression to statistical databases.
在统计数据库中，数据压缩有其新的内容和意义。
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