US 12,216,732 B2
Estimation apparatus, estimation method and program to estimate function parameters and data values
Tomoharu Iwata, Tokyo (JP); and Hitoshi Shimizu, Tokyo (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/295,291
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Nov. 7, 2019, PCT No. PCT/JP2019/043621
§ 371(c)(1), (2) Date May 19, 2021,
PCT Pub. No. WO2020/105445, PCT Pub. Date May 28, 2020.
Claims priority of application No. 2018-218037 (JP), filed on Nov. 21, 2018.
Prior Publication US 2024/0012869 A1, Jan. 11, 2024
Int. Cl. G06F 17/11 (2006.01)
CPC G06F 17/11 (2013.01) 20 Claims
OG exemplary drawing
 
1. An estimation apparatus comprising a processor configured to execute operations comprising:
receiving aggregated data in which a plurality of data are aggregated, and feature data representing a feature of the aggregated data;
determining a parameter of a model of the plurality of data before the aggregation of the aggregated data, using a predetermined function and the feature data; and
estimating a parameter of the function and the plurality of data by optimizing a predetermined objective function, using the aggregated data, wherein the objective function is a likelihood indicating a degree of agreement between estimated values of the plurality of data and the parameter of the model, and the aggregated data.