Compression and management of the point of interest in vehicle navigation
Zhaosheng Zhang, Diange Yang, Ting Li, Yingliang Peng, Xiaomin Lian · 2011
This paper proposes a dictionary compression method based on statistics to achieve massive poi data's storage and retrieval in the embedded navigation devices. Then word index and high-frequency words index of the poi names were used to improve the searching speed. Experiments show that it has better compression rate and the retrieval speed meets actual needs.