US 12,292,871 B2
Pattern updating device, pattern updating method, and non-transitory computer-readable recording medium
Shintaro Fukushima, Tokyo-to (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 31, 2022, as Appl. No. 17/828,789.
Claims priority of application No. 2021-101970 (JP), filed on Jun. 18, 2021.
Prior Publication US 2022/0405259 A1, Dec. 22, 2022
Int. Cl. G06F 16/22 (2019.01); G06F 16/23 (2019.01)
CPC G06F 16/2246 (2019.01) [G06F 16/2379 (2019.01)] 15 Claims
OG exemplary drawing
 
1. A pattern updating device comprising:
a storage;
a memory; and
a processor coupled to the memory,
the processor being configured to:
receive a plurality of path information obtained from position information of travel data of a vehicle,
extract frequently-occurring patterns from the plurality of path information using sequential pattern mining,
store the extracted patterns as a predetermined data structure in the storage,
perform a check of newly received path information obtained from location of travel data of the vehicle against the stored predetermined data structure,
based on the check, update the frequently-occurring patterns in all path information, including the newly received path information, by updating the stored predetermined data structure, and
store the updated patterns in the storage,
wherein, based on the check, a pattern that newly becomes a frequently-occurring pattern by exceeding a threshold during the check is adapted to fit the predetermined data structure, and the new frequently-occurring pattern is stored in the storage.