公开(公告)号：US20170039470A1

公开(公告)日：2017-02-09

申请号：US15102303

申请日：2013-12-25

Applicant: HITACHI, LTD.

Inventor： Junichi HIRAYAMA ,  Ryuji MINE

IPC: G06N3/08 ,  G06N3/04

CPC classification number: G06N3/08 ,  G06N3/0436 ,  G06N3/0454 ,  G06Q10/0639

Abstract: An objective of the present invention is to efficiently identify a combination of other variables which contribute to variation of a target variable, and extract same as explanatory variables (factors). A factor extraction system according to the present invention defines a covariant composite variable which is configured of a combination of event variables and a binary number which represents whether the combination is present in event data, and obtains a correlation between the covariant composite variable and the target variable, thereby extracting contribution factors.

Abstract translation: 本发明的目的是有效地识别有助于目标变量的变化的其他变量的组合，并且将其解释为解释变量（因子）。 根据本发明的因子提取系统定义协变组合变量，其由事件变量和表示组合是否存在于事件数据中的二进制数的组合构成，并且获得协变复合变量与目标之间的相关性 变量，从而提取贡献因子。

公开(公告)号：US20180095937A1

公开(公告)日：2018-04-05

申请号：US15566523

申请日：2015-04-17

Applicant: Hitachi, Ltd.

Inventor： Junichi HIRAYAMA ,  Ryuji MINE

IPC: G06F17/18 ,  G06F17/15 ,  G06F7/02 ,  G06F17/30

CPC classification number: G06F17/18 ,  G06F7/02 ,  G06F16/00 ,  G06F16/254 ,  G06F16/90344 ,  G06F17/15

Abstract: An automatic data processing system includes a reception section, a data type determination section, a measurement scale determination section, and a data processing section. The reception section receives data on numbers, characters, and symbols. The data type determination section determines the type of the data. The measurement scale determination section determines the measurement scale of the data in accordance with the distribution of the data when the data is of a numeric type. The data processing section processes the data in accordance with the determined measurement scale.

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.