Abstract
LZW algorithm is adopted in this paper to compress the bridge vibration data. Based on the data structure of chained lists, an improved version of the algorithm, in which a new method called forward-moving on frequently-used entries is applied, is implemented and optimized. It can be drawn that using the above-mentioned method can effectively improve the searching speed and save compression time. In addition, optimizing the location of forward-moved frequently-used entries and selecting the appropriate statistical frequency have better optimization effects. Finally, implemented with C language, the algorithm is proved to have high compression efficiency with less time cost in the practical compression of bridge vibration data.
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