Invention Grant
- Patent Title: Hybrid road network and grid based spatial-temporal indexing under missing road links
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Application No.: US15257036Application Date: 2016-09-06
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Publication No.: US10281284B2Publication Date: 2019-05-07
- Inventor: Ning Duan , Peng Gao , Peng Ji , Xiao Bo Li , Zhi Hu Wang , Jun Zhu
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Alexa L. Ashworth; Brian M. Restauro
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G01C21/32 ; G01C21/00 ; G05D1/02 ; G01C21/36

Abstract:
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.
Public/Granted literature
- US20170010123A1 HYBRID ROAD NETWORK AND GRID BASED SPATIAL-TEMPORAL INDEXING UNDER MISSING ROAD LINKS Public/Granted day:2017-01-12
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