Invention Grant
- Patent Title: Detecting road condition changes from probe data
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Application No.: US15155701Application Date: 2016-05-16
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Publication No.: US09881497B2Publication Date: 2018-01-30
- Inventor: Xin Chen , Vladimir Zhukov
- Applicant: HERE Global B.V.
- Applicant Address: NL Eindhoven
- Assignee: HERE Global B.V.
- Current Assignee: HERE Global B.V.
- Current Assignee Address: NL Eindhoven
- Agency: Lempia Summerfield Katz LLC
- Main IPC: G06F19/00
- IPC: G06F19/00 ; G08G1/01 ; G01C7/04

Abstract:
Systems, methods, and apparatuses are disclosed for identifying anomalies or changes in road conditions on a roadway location. An initial low rank data matrix of initial vehicle probe data at a plurality of different times for a roadway location is provided, where the initial low rank data matrix represents a baseline of road conditions for the roadway location. A plurality of additional vehicle probe data from at least one vehicle at the roadway location is received. The additional vehicle probe data is added to the initial vehicle probe data of the initial low rank data matrix. The updated data matrix with the compiled probe data is decomposed into a low rank data matrix and a sparse data matrix. A change at the roadway location is identified based on the probe data in the sparse data matrix.
Public/Granted literature
- US20160260322A1 Detecting Road Condition Changes from Probe Data Public/Granted day:2016-09-08
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