Research and Improvement of Data Compression Algorithm in Real-time Database
Niu Fu-li · Huagong zidonghua ji yibiao · 2010
For the shortcomings of compression algorithms,an improved history data compression algorithm was put forward.The three basic elements in history data:value,time stamp and quality stamp were compressed with different strategies,and vector data compression was introduced in the process of value compression.The value was compressed regularly through the establishment of data buffer pool.Simulation results show that compression ratio and compression time had a great upswing in the improved compression algorithm.