Title :
Compression and management of the point of interest in vehicle navigation
Author :
Zhang, Zhaosheng ; Yang, Diange ; Li, Ting ; Peng, Yingliang ; Lian, Xiaomin
Author_Institution :
Dept. of Automobile Eng., Tsinghua Univ., Beijing, China
Abstract :
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.
Keywords :
Global Positioning System; automotive engineering; data compression; satellite navigation; statistical databases; data retrieval; data storage; dictionary compression method; embedded navigation devices; point-of-interest compression; point-of-interest management; statistics; vehicle navigation system; word index; Automotive engineering; Dictionaries; Image coding; Indexes; Information theory; Navigation; Vehicles; dictionary compress; embedded system; point of interest; word index;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776487
