Hybrid road network and grid based spatial-temporal indexing under missing road links

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United States of America Patent

PATENT NO 9880012
SERIAL NO

15355539

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Abstract

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Embodiments of the present invention provide efficient and dynamic systems and methods for building a hybrid road network and grid based spatial temporal index to handle big trajectory data. Embodiments of the present invention can be used to satisfy the issue of low indexing and compression rate of big trajectory data, and to improve the efficiency of index queries, while also providing a mechanism to account for missing road links in a map.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duan, Ning Beijing, CN 126 593
Gao, Peng Beijing, CN 240 1264
Ji, Peng Nanjing, CN 81 635
Li, Xiao Bo Ningbo, CN 11 21
Wang, Zhi Hu Beijing, CN 81 503
Zhu, Jun Shanghai, CN 650 4357

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