US 11,995,077 B2
Parameter optimization apparatus, method, and system
Hideyuki Nakagawa, Kawasaki (JP); Yasunori Taguchi, Kawasaki (JP); and Hiro Gangi, Tokyo (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Aug. 30, 2021, as Appl. No. 17/446,325.
Claims priority of application No. 2020-185291 (JP), filed on Nov. 5, 2020.
Prior Publication US 2022/0138194 A1, May 5, 2022
Int. Cl. G06F 16/245 (2019.01); G06F 3/0482 (2013.01); G06F 16/22 (2019.01); G06F 16/2453 (2019.01)
CPC G06F 16/24532 (2019.01) [G06F 3/0482 (2013.01); G06F 16/2264 (2019.01)] 25 Claims
OG exemplary drawing
 
1. A parameter optimization apparatus comprising:
a memory configured to store a plurality of data sets which each include a first parameter value of a first number of dimensions and an observed value of an objective function corresponding to the first parameter value: and
processing circuitry configured to
determine a search space of a second number of dimensions that includes a predetermined first parameter value, the second number being smaller than the first number,
to acquire, based on the plurality of data sets, one or more data sets each having a first parameter value included in a predetermined distance from the search space, or one or more data sets each having a second parameter value of the second number of dimensions corresponding to this data sets, and
search the search space for a first parameter value or a second parameter value that optimizes the objective function, using a surrogate model of the objective function based on the acquired one or more data sets.