Fast and accurate geomapping

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United States of America Patent

PATENT NO 11586680
APP PUB NO 20160171027A1
SERIAL NO

14230676

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Abstract

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A system and method are provided for discovering k-nearest-neighbors to a given point within a certain distance d. The method includes constructing an index of geometries using geohashes of geometries as an indexing key to obtain an indexed set of geometries, and calculating a geohash representation of the given point with a resolution equal to a magnitude value of d. The method includes searching for a closest-prefix geometry from the indexed set using the geohash representation of the given point, and identifying geometries from the indexed set having a same prefix as the closest-prefix geometry. The method further includes calculating distances between the given point and the geometries identified from the indexed set having the same prefix as the closest-prefix geometry, and determining k geometries with respective shortest distances less than d from the geometries identified from the indexed set having the same prefix as the closest-prefix geometry.

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Patent Owner(s)

  • IBM CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agrawal, Dakshi Monsey, US 126 1894
Ganti, Raghu K Elmsford, US 24 154
Srivatsa, Mudhakar White Plains, US 147 880
Zerfos, Petros New York, US 42 810

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