公开(公告)号：US20160371363A1

公开(公告)日：2016-12-22

申请号：US15122191

申请日：2014-03-26

Applicant: Hitachi, Ltd.

Inventor： Keiro MURO ,  Yasushi MIYATA ,  Hiroyasu NISHIYAMA

IPC: G06F17/30 ,  G01D9/28

CPC classification number: G06F16/285 ,  G01D9/28 ,  G06F16/2477 ,  G06Q10/10 ,  G06Q50/06

Abstract: A time-series data management method for generating a histogram from time-series data using a computer provided with a processor and a storage device, the computer storing the time-series data including a time of day and a value in the storage device, storing section information including a start time, an end time, and an identifier of the time-series data in the storage device, generating the histogram from the time-series data corresponding to the section information and storing the generated histogram in the storage device, accepting a section to be searched and selecting the histogram associated with the section to be searched, and combining the selected histograms and generating a histogram for the section to be searched

Abstract translation: 一种时间序列数据管理方法，用于使用设置有处理器和存储装置的计算机从时间序列数据生成直方图，所述计算机存储包括在时间上的时间序列数据和存储装置中的值，存储 包括开始时间，结束时间和存储装置中的时间序列数据的标识符，从对应于分段信息的时间序列数据生成直方图，并将生成的直方图存储在存储装置中，接受 要搜索的部分并选择与要搜索的部分相关联的直方图，并且组合所选择的直方图并生成要搜索的部分的直方图

公开(公告)号：US20230378806A1

公开(公告)日：2023-11-23

申请号：US18030862

申请日：2021-10-14

Applicant: Hitachi, Ltd.

Inventor： Tsubasa ICHIKAWA ,  Shinya SUENAGA ,  Yasuyuki TADA ,  Yasushi MIYATA ,  Yoshiki KUROKAWA

IPC: H02J13/00 ,  H02J3/00

CPC classification number: H02J13/00034 ,  H02J3/0073 ,  H02J3/0012

Abstract: Disclosed is a system for supporting creation of a system plan to change a configuration of a power system including a power transmission system and a power distribution system. The system stores information on a configuration of the power transmission system and information on a configuration and a load of the power distribution system. The system determines, based on the information on the configuration and the load of the power distribution system, a load accommodation capacity between power distribution substations which indicates a power supply capacity allowed to be compensated for between the power distribution substations through a configuration change of the power distribution system. The system creates a system plan proposal including a change in system configuration of the power transmission system and the power distribution system based on the load accommodation capacity. The system outputs information on the system plan proposal to an output device.

公开(公告)号：US20160041992A1

公开(公告)日：2016-02-11

申请号：US14782237

申请日：2013-04-09

Applicant: HITACHI, LTD.

Inventor： Yasushi MIYATA ,  Shoji KODAMA

IPC: G06F17/30

CPC classification number: G06F16/355 ,  G06F16/24575 ,  G06F16/285 ,  G06F16/30 ,  G06F19/324 ,  G16H10/60 ,  G16H40/20

Abstract: A data management apparatus includes a storage unit which stores a first database for retaining structured data in which a plurality of data features are structured based on attributes and attribute values, and a second database for retaining unstructured data in file units, and a control unit which combines the structured data and the unstructured data and manages the combination as virtual structured data which is accessed during an execution of a search query to the second database, uses attribute values of virtual attributes of the virtual structured data as values that were extracted from files of the second database based on predetermined information extraction rules, and updates the attribute values of the virtual attributes of the virtual structured data when the files of the second database including the unstructured data are updated.

Abstract translation: 一种数据管理装置，包括存储单元，该存储单元存储用于保存基于属性和属性值构造多个数据特征的结构化数据的第一数据库，以及用于以文件单位保存非结构化数据的第二数据库，以及控制单元， 组合结构化数据和非结构化数据，并将组合管理为在执行搜索查询期间被访问到第二数据库的虚拟结构化数据，使用虚拟结构化数据的虚拟属性的属性值作为从文件 基于预定信息提取规则的第二数据库，并且当包括非结构化数据的第二数据库的文件被更新时，更新虚拟结构化数据的虚拟属性的属性值。

公开(公告)号：US20240184985A1

公开(公告)日：2024-06-06

申请号：US18285886

申请日：2022-03-11

Applicant: HITACHI, LTD.

Inventor： Yasushi MIYATA ,  Tadashi TAKEUCHI

IPC: G06F40/253 ,  G06F40/186

CPC classification number: G06F40/253 ,  G06F40/186

Abstract: An information representation structure analysis device: stores an information representation template for each combination of an information representation grammar and a support information type, the information representation template being a template used to generate an information representation pattern being a program code for implementing a function of extracting an extraction target, the support information type being a category of support information being information used in extraction of the extraction target; identifies the information representation template to be used to generate the information representation pattern for extraction of the extraction target from an atypycal document, based on the information representation grammar and the support information type identified for the information representation; and generates the information representation pattern by applying the extraction target and basis information to the identified information representation template, the basis information being a basis in extraction of the extraction target from the information representation.

公开(公告)号：US20190384272A1

公开(公告)日：2019-12-19

申请号：US16412566

申请日：2019-05-15

Applicant: Hitachi, Ltd.

Inventor： Yasushi MIYATA ,  Yohsuke ISHII

IPC: G05B23/02 ,  G01R31/08

Abstract: Input data, output data having a plurality of output parameters obtained by analyzing the input data, and a plurality of associations between the input data and the output data are stored. A division condition for dividing an output data distribution in which the output data is plotted for two axes corresponding to two parameters among the plurality of output parameters is extracted, the output data distribution is divided according to the division condition, and output data of the divided output data distribution is derived as first and second output data distribution rules corresponding to the two axes. First and second output data distribution region candidates are calculated by applying the first and second output data distribution rules to new input data, and an output data distribution region of the new input data is estimated by combining the first and second output data distribution region candidates with each other.

公开(公告)号：US20180018347A1

公开(公告)日：2018-01-18

申请号：US15543935

申请日：2015-01-30

Applicant: Hitachi, Ltd.

Inventor： Kazuhito YOKOI ,  Go KOJIMA ,  Takuya ODA ,  Yasushi MIYATA ,  Masanori TAKATA ,  Hitoshi KAMEI ,  Akiyoshi TSUCHIYA

IPC: G06F17/30

CPC classification number: G06F16/188 ,  G06F16/13 ,  G06F16/16 ,  G06F16/1827 ,  G06F16/1873

Abstract: The purpose of the present invention is, in a file storage, to shorten an access response time to shared data. When a file storage apparatus receives a command for a specific manipulation of a file system, a specific apparatus determines, based on a state of the file system and a manipulation history, whether or not an unapplied manipulation affects a target of the specific manipulation, the unapplied manipulation being a manipulation which has been previously executed by another file storage apparatus among a plurality of file storage apparatuses and which has not been applied to the file system. When it is determined that the unapplied manipulation affects the target of the specific manipulation, the file storage apparatus applies the unapplied manipulation to the file system, executes the specific manipulation on the file system, and transmits, to a cloud storage apparatus, manipulation information which represents the specific manipulation.

公开(公告)号：US20170046353A1

公开(公告)日：2017-02-16

申请号：US15305481

申请日：2014-07-29

Applicant: HITACHI, LTD.

Inventor： Mika TAKATA ,  Norifumi NISHIKAWA ,  Yasushi MIYATA ,  Nobuaki KOHINATA

IPC: G06F17/30

CPC classification number: G06F16/125 ,  G06F16/162 ,  G06F16/172 ,  G06F16/24552 ,  G06F16/2474

Abstract: A database management system (DBMS) is configured to delete, from a database storing information about time points associated with records, a record indicating a lapse of a predetermined time period since a time point indicated by associated information. The DBMS receives a remaining condition which indicates a time period during which a record is kept in the database regardless of the predetermined time period, and controls to keep a record in the database even after a lapse of the predetermined time period, based on the remaining condition.

Abstract translation: 数据库管理系统（DBMS）被配置为从存储关于与记录相关联的时间点的信息的数据库中删除表示自关联信息指示的时间点起经过了预定时间段的记录。 数据库管理系统接收剩余条件，其指示记录保存在数据库中的时间段，而不管预定的时间段，并且控制即使在经过预定时间段之后仍然保持数据库中的记录，基于剩余条件 条件。