公开(公告)号：US20230334406A1

公开(公告)日：2023-10-19

申请号：US18115081

申请日：2023-02-28

Applicant: Hitachi, Ltd.

Inventor： Shunichi AKATSUKA ,  Susumu SERITA ,  Toshihiro KUJIRAI

IPC: G06Q10/0637 ,  G06Q10/0631 ,  G06Q50/30

CPC classification number: G06Q10/06375 ,  G06Q10/06315 ,  G06Q50/30

Abstract: An inference apparatus includes: an inference module configured to infer a modification plan for modification target data by inputting, for each of agents, a state of the each of the agents to a policy model of the each of the agents which is related to the modification target data, and by acquiring an action of the each of the agents, and store, as experience data, the state and the action of each of the agents as well as a reward earned by taking the action; an evaluation module configured to calculate an evaluation value for each of the agents, the evaluation value being a probability at which the action is selected under the state; and a modification module configured to modify the experience data based on the evaluation value of each of the agents calculated by the evaluation module.

公开(公告)号：US20240289719A1

公开(公告)日：2024-08-29

申请号：US18569664

申请日：2022-03-24

Applicant: Hitachi, Ltd.

Inventor： Hiroya MATSUBA ,  Morio MATSUMOTO ,  Toshihiro KUJIRAI

IPC: G06Q10/0635 ,  G06Q10/20

CPC classification number: G06Q10/0635 ,  G06Q10/20

Abstract: The risk management system includes countermeasure information indicating a relationship between each of a plurality of risk types and a countermeasure against each risk type, and a plurality of risk models that define a process of estimating a risk value at each point of time in future and determining a countermeasure, the plurality of risk models corresponding respectively to the plurality of risk types, selects a risk model corresponding to a risk type of each of the constituent elements, gives result information to the selected risk model to estimate a future risk value of each of the constituent elements, and, according to the risk model, extracts a countermeasure corresponding to the risk type, based on the countermeasure information. The risk management system includes also risk structure information defining a countermeasure for the management target and a threshold for applying the countermeasure.

公开(公告)号：US20230230016A1

公开(公告)日：2023-07-20

申请号：US18009635

申请日：2021-02-08

Applicant: Hitachi, Ltd.

Inventor： Junichi HIRAYAMA ,  Yaemi TERAMOTO ,  Toshihiro KUJIRAI ,  Kohsei MATSUMOTO ,  Naoki SHIMODE

IPC: G06Q10/067 ,  G06Q10/04

CPC classification number: G06Q10/067 ,  G06Q10/04

Abstract: A coordinating apparatus selects discrete systems that simulate behavior of an actual environment and outputs an indicator value related to the actual environment, shares internal states related to the actual environments obtained on a basis of the behavior simulated by the discrete systems selected in the selection process, generates a shared internal state, decides such an action that a post-coordination integrated indicator value obtained by integrating a post-coordination indicator value from the discrete systems when the discrete systems are coordinated is optimized, the action being should be taken and being able to be taken by the discrete systems on a basis of the shared internal state in a case where the discrete systems are coordinated, determines whether or not the discrete systems should be coordinated on a basis of the post-coordination indicator values, and the indicator value from each of the discrete systems, and outputs a determination result.

公开(公告)号：US20200333775A1

公开(公告)日：2020-10-22

申请号：US16845522

申请日：2020-04-10

Applicant: Hitachi, Ltd.

Inventor： Morio MATSUMOTO ,  Fumiya KUDO ,  Toshihiro KUJIRAI

IPC: G05B19/418 ,  G05B17/02 ,  G05B19/4069

Abstract: An object of the present invention is to reduce an error between an actual machine and a simulation by removing the influence of overlearning of an adjustment by a mathematically-described function, and to optimize automatic operation control of the machine. An automatic operation control system for controlling an automatic operation of a machine sets a first model showing a relation between a control signal string input to the machine on the basis of a mathematically-described function and data output from the machine controlled in accordance with the control signal string. In a learning process including learning the automatic operation control of the machine, the system executes learning using the first model until a first condition is satisfied. After the first condition is satisfied, the learning is executed using a second model that is a model after the first model is changed one or more times until a second condition meaning overlearning is satisfied or the learning is finished without satisfying the second condition.

公开(公告)号：US20190164101A1

公开(公告)日：2019-05-30

申请号：US16173020

申请日：2018-10-29

Applicant: Hitachi, Ltd.

Inventor： Hikaru KOYAMA ,  Toshio OKOCHI ,  Toshihiro KUJIRAI

IPC: G06Q10/06 ,  G05B23/02 ,  G05B19/418

Abstract: A data analysis apparatus generates M (M is an integer of 3 or greater) groups each including data regarding a plurality of units from data where first KPIs and K (K is an integer of 2 or greater) explanatory variables are given by 1:1, generates a second KPI indicating the state of the group based on the values of a plurality of first KPIs included in the group, and selects a feature for the first KPIs based on a correlation analysis between the second KPI of each group and the feature of each group calculated based on the explanatory variables.