Acta Geodaetica et Cartographica Sinica ›› 2016, Vol. 45 ›› Issue (S1): 66-76.doi: 10.11947/j.AGCS.2016.F008

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An Efficient Integer Coding and Computing Method for Multiscale Time Segment

TONG Xiaochong1, WANG Rong2, WANG Lin3, LAI Guangling1, DING Lu1   

  1. 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450001, China;
    2. Science and Technology on Information Systems Engineering Laboratory, National University of Defense Technology, Changsha 410073, China;
    3. Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China
  • Received:2016-08-20 Revised:2016-10-20 Online:2016-12-31 Published:2017-03-29
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41671409;41201392)

Abstract: This article focus on the exist problem and status of current time segment coding, proposed a new set of approach about time segment coding: multi-scale time segment integer coding (MTSIC). This approach utilized the tree structure and the sort by size formed among integer, it reflected the relationship among the multi-scale time segments: order, include/contained, intersection, etc., and finally achieved an unity integer coding processing for multi-scale time. On this foundation, this research also studied the computing method for calculating the time relationships of MTSIC, to support an efficient calculation and query based on the time segment, and preliminary discussed the application method and prospect of MTSIC. The test indicated that, the implement of MTSIC is convenient and reliable, and the transformation between it and the traditional method is convenient, it has the very high efficiency in query and calculating.

Key words: multi-scale time, subdivison, time segment coding, time scale

CLC Number: