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：US20230055564A1

公开(公告)日：2023-02-23

申请号：US17683118

申请日：2022-02-28

Applicant: Hitachi, Ltd.

Inventor： Keiro MURO

IPC: G05B23/02

Abstract: A model construction support system supports searching for a feature used to construct a prediction model that outputs an objective variable related to a predicted event for a machine based on explanatory variables, and a division method for dividing the explanatory variables into groups to improve calculation accuracy of the objective variables based on the prediction model. The system divides the explanatory variables into a plurality of groups, calculates accuracy of the features set based on the explanatory variable in the groups, and calculates a score of the feature in the groups based on the accuracy and a support ratio of the explanatory variable to all of the explanatory variables before division. The system calculates accuracy of a group division feature used to divide the explanatory variables, and a score in the groups based on the score and the accuracy in the groups.

公开(公告)号：US20190171459A1

公开(公告)日：2019-06-06

申请号：US15746807

申请日：2016-02-26

Applicant: Hitachi, Ltd.

Inventor： Hiromitsu NAKAGAWA ,  Keiro MURO

IPC: G06F9/38 ,  G06F9/48 ,  G06F11/30

Abstract: The analysis system executes an analysis process which takes as input data at least portions of: time series data of a plurality of instances of value data which each include times and values; and analysis data which includes data which has been outputted by previous analysis processes. Each of the one or more objects is a process definition conforming to a user operation. In the analysis process, the analysis system skips at least one of: an execution of a process conforming to an object which matches any previous object; an execution of a process conforming to an object for a scope block and process description, among a plurality of scope blocks which constitute the scope to be analyzed, which match a scope block and process description which are associated with any stored data block; and/or the storage of a data block which matches any stored data block.

公开(公告)号：US20220147573A1

公开(公告)日：2022-05-12

申请号：US17482161

申请日：2021-09-22

Applicant: Hitachi, Ltd.

Inventor： Yoichi KAWACHIYA ,  Keiro MURO ,  Hiroaki SHIKANO ,  Satoru WATANABE

IPC: G06F16/9038 ,  G06F16/901

Abstract: An apparatus that presents a search condition, which is an execution condition to be searched, for a correlation model that calculates an index related to an execution result of process according to the execution condition from predetermined execution conditions, includes: an importance calculation unit configured to calculate the importance of searching for each of a plurality of divided regions belonging to the search space, which is a space that the execution condition can take; an execution cost calculation unit configured to calculate an execution cost required for the process under the execution condition corresponding to the divided region; and a divided region selection unit and a screen output unit configured to select a divided region to be actually searched from the plurality of divided regions on the basis of the importance and the execution cost, and present an execution condition corresponding to the selected divided region as a search condition.

公开(公告)号：US20180349780A1

公开(公告)日：2018-12-06

申请号：US15993644

申请日：2018-05-31

Applicant: Hitachi, Ltd.

Inventor： Qi XIU ,  Yoshiko NAGASAKA ,  Keiro MURO ,  Hiromitsu NAKAGAWA

IPC: G06N5/04 ,  G06N99/00 ,  G06F17/50

Abstract: A traceability system includes: a Equipment table that stores production data of a product manufactured in a first process, in which an individual ID is appended to a product; a Equipment table that stores production data of a product manufactured in a second process, in which an individual ID is not appended to a product; a training data setting unit that creates a training data table that stores the Equipment table and the Equipment table, which are correlated with each other; a feature amount extracting unit that calculates a cycle time of a predetermined number of products manufactured in the past in the first process; a model creation section that creates a production time estimation model for estimating a production time at which a product has been manufactured in the second process on the basis of the cycle time of the products; and a production time estimating unit.

公开(公告)号：US20180173576A1

公开(公告)日：2018-06-21

申请号：US15816366

申请日：2017-11-17

Applicant: HITACHI, LTD.

Inventor： Keiro MURO ,  Hiromitsu NAKAGAWA

IPC: G06F9/54 ,  G01N29/44 ,  G05B15/02

CPC classification number: G06F9/542 ,  G01N29/14 ,  G01N29/4454 ,  G05B15/02 ,  G05B23/0213

Abstract: An event flow system connecting nodes, for which processes are defined, from an upstream side to a downstream side by an event which is generated due to a certain process and is used by another process to realize a process flow is provided. The event flow system includes: a process flow builder configured to build a process flow using a plurality of nodes, one or more events, and a reverse event that sends a predetermined request, from a downstream node to an upstream node disposed further toward an upstream side than the downstream node; and a process flow executer configured to execute a process defined for each of the plurality of nodes according to the event and the reverse event.

公开(公告)号：US20200042926A1

公开(公告)日：2020-02-06

申请号：US16356697

申请日：2019-03-18

Applicant: HITACHI, LTD.

Inventor： Keiro MURO

IPC: G06Q10/06 ,  G06Q50/04 ,  G06F16/28 ,  G06F17/18 ,  G06F17/15

Abstract: An analysis method performed by a computer analyzes analysis data acquired from a system which includes a plurality of devices to manufacture a product. The computer manages a set of values of each field of the analysis data as a column, analyzes a correspondence from a value belonging to a first target column to a value belonging to a second target column, specifies a surjection column pair which is a set of the first target column and the second target column which have a surjective correspondence, generates graph information to manage a graph of tree structure indicating a connection relation of the column by connecting a graph which has nodes of the first target column and the second target column of the surjection column pair, and performs a yield analysis to specify a parameter affecting an evaluation value using the graph information.

公开(公告)号：US20190065491A1

公开(公告)日：2019-02-28

申请号：US15934123

申请日：2018-03-23

Applicant: HITACHI, LTD.

Inventor： Yoshiko NAGASAKA ,  Keiro MURO

IPC: G06F17/30 ,  G06F17/27 ,  G06F17/15

Abstract: An information processing system includes: a document reception unit configured to receive multiple pieces of document data; a data storage unit configured to store the received multiple pieces of document data; and a correspondence relation estimation unit configured to estimate a correspondence relation at least between an item in a first document data and an item in a second document data out of the multiple pieces of document data stored in the data storage unit. The correspondence relation estimation unit includes an item-item coupling relation extraction unit configured to extract a coupling relation among items in the first document data and a coupling relation among items in the second document data, and a word relationship extraction unit configured to extract a relevance between a word that appears in an item in the first document data and a word that appears in an item in the second document data.

公开(公告)号：US20160203032A1

公开(公告)日：2016-07-14

申请号：US14902184

申请日：2013-07-01

Applicant: HITACHI, LTD.

Inventor： Hiroaki OZAKI ,  Keiro MURO

IPC: G06F9/52 ,  G06F17/30

CPC classification number: G06F9/52 ,  G06F9/46 ,  G06F9/5066 ,  G06F9/5083 ,  G06F17/142 ,  G06F17/30595

Abstract: A series data distributed processing system including a parallel processing infrastructure and a distributed series data management unit managing distributed series data, wherein: the parallel processing infrastructure includes, on each computing device, a data block, a data block processing server for processing the data block, and a block processing integration server for processing a result from the data block processing server, the data block being formed from a plurality of values each associated with one of a plurality of sequential labels in the series data; and the distributed series data management unit includes a distributed information management database for managing data blocks, which retains management data, including sequential label ranges, which refer to ranges of sequential labels in the data blocks, series IDs corresponding to value names in the data blocks, and meta-information identifying computing devices retaining the data blocks.

Abstract translation: 一种串行数据分布处理系统，包括并行处理基础设施和分布式系列数据管理单元，其管理分布式系列数据，其中：所述并行处理基础设施在每个计算设备上包括数据块，用于处理所述数据块的数据块处理服务器 以及块处理集成服务器，用于处理来自数据块处理服务器的结果，数据块由与串行数据中的多个顺序标签中的一个相关联的多个值形成; 并且分布式系列数据管理单元包括用于管理数据块的分布式信息管理数据库，其保存包括顺序标签范围的管理数据，该顺序标签范围涉及数据块中的顺序标签的范围，与数据块中的值名称相对应的系列ID 以及识别保留数据块的计算设备的元信息。

公开(公告)号：US20220066429A1

公开(公告)日：2022-03-03

申请号：US17179009

申请日：2021-02-18

Applicant: HITACHI, LTD.

Inventor： Masakazu TAKAHASHI ,  Takuro YASUI ,  Keiro MURO

IPC: G05B19/418 ,  G06F16/2455

Abstract: A manufacturing condition setting automating apparatus includes: a quality judging unit that computes a present process quality from facility data at predetermined time intervals, and judges whether or not it is in a quality tolerance range; a manufacturing condition candidate creating unit that computes a feature quantity, searches a database for condition change cases having similar feature quantities, tabulates condition change cases basis on whether the condition change cases are successes or failures, and outputs manufacturing condition candidates in descending order of rates of successes; an imbalance-preventing manufacturing condition candidate creating unit that changes scores that decide ranks of manufacturing condition candidates, and creates a ranking of manufacturing condition candidates; and a manufacturing condition output unit that outputs a set value of a condition change of a top manufacturing condition candidate to the manufacturing facility, and registers a new condition change in the condition change history.