公开(公告)号：US20200311324A1

公开(公告)日：2020-10-01

申请号：US16816699

申请日：2020-03-12

Applicant: Hitachi, Ltd.

Inventor： Nobukazu KONDO ,  Tsunehiko BABA ,  Jumpei OKOSHI

IPC: G06F30/20 ,  B62D5/10

Abstract: Reusable information is extracted from a result of executing a simulation of a plurality of models.A simulation management method for managing data for use in a simulation by a management device having a processor and a memory, the method including: executing a simulation using a model and data, by a simulator; extracting intermediate data indicating that an internal state of the model that is being simulated matches a predetermined state, by the management device; and holding the extracted intermediate data as useful intermediate data, by the management device.

公开(公告)号：US20220391404A1

公开(公告)日：2022-12-08

申请号：US17694194

申请日：2022-03-14

Applicant: Hitachi, Ltd.

Inventor： Keiko TANIGAWA ,  Toshihiko KASHIYAMA ,  Jumpei OKOSHI

IPC: G06F16/25

Abstract: A data management system includes a processor. An estimated ETL level mapping processing unit is operated on the processor to estimate existence of unregistered ETL that is ETL not registered in a repository, to calculate a degree of similarity based on matching between an existing data model and retained data, and to extract a column to be a candidate based on the degree of similarity. The existence of the unregistered ETL is estimated by estimating the presence or absence of connectedness in the ETLs on the basis of correspondence between input data and output data in ETLs by using an execution ETL log relevant to an execution history of the ETL.

公开(公告)号：US20200285625A1

公开(公告)日：2020-09-10

申请号：US16807228

申请日：2020-03-03

Applicant: HITACHI, LTD.

Inventor： Tsunehiko BABA ,  Kazuhide AIKOH ,  Toshihiko KASHIYAMA ,  Jumpei OKOSHI ,  Nobukazu KONDO ,  Kentaro KAKUI

IPC: G06F16/22 ,  G06F16/242 ,  G06F16/26

Abstract: An analysis management server stores a factory A catalog group including a plurality of catalogs in factory A, an application destination catalog including a plurality of catalogs in factory B, and an application source analysis data correspondence table associating columns between a target table of factory A and a defect factor analysis table. A CPU is configured to: identify an unconnected catalog for which a catalog of factory B having an identical correspondence does not exist among the plurality of catalogs of factory A included in the application source analysis data correspondence table; identify an unconnected correspondence, which is a correspondence of the unconnected catalog in the application source analysis data correspondence table, sensor data of factory B, and an identical path correspondence which is a correspondence of a catalog on a path including the unconnected catalog; and display information of the unconnected correspondence and the identical path correspondence.

公开(公告)号：US20190050684A1

公开(公告)日：2019-02-14

申请号：US15936942

申请日：2018-03-27

Applicant: HITACHI, LTD.

Inventor： Nobukazu KONDO ,  Jumpei OKOSHI ,  Naofumi HAMA

IPC: G06K9/62 ,  G06T7/00

Abstract: Proposed are a machine learning device and a machine learning method capable of performing machine learning in a short time and an efficient manner. For each learning target, image processing having a high learning effect regarding the learning target is set in advance. When image processing has been set regarding a learning target included in the image for each image based on teaching data set prepared in advance, a processed image of the image is generated by performing the image processing to that image. By learning a learning target with image data of the generated processed image as the teaching data, basic learning information configured from externally acquired basic learning results can be tuned.

公开(公告)号：US20230325248A1

公开(公告)日：2023-10-12

申请号：US18120577

申请日：2023-03-13

Applicant: Hitachi, Ltd.

Inventor： Jumpei OKOSHI ,  Masayuki SAKATA ,  Shotaro NODA

IPC: G06F9/50

CPC classification number: G06F9/5038 ,  G06F2209/5017

Abstract: A data inconsistency correction method to be applied is selected in consideration of a specification of a transaction, execution status of the transaction, and the like. A computer system includes a computer that executes a service, is connected to a computer that divides a transaction across a plurality of services into a plurality of local transactions and executes the plurality of local transactions, and holds service management information for managing a specification of the local transaction in the service and program management information for storing a program for correcting data inconsistency and data associated with an application condition. The computer system selects the program to be applied based on the service management information, the program management information, and execution states of the plurality of local transactions when a failure of the transaction is detected.

公开(公告)号：US20230097665A1

公开(公告)日：2023-03-30

申请号：US17439147

申请日：2020-11-25

Applicant: Hitachi, Ltd.

Inventor： Hiroaki MASUDA ,  Jumpei OKOSHI ,  Tsunehiko BABA

IPC: G06F16/9032

Abstract: A tag domain presentation device holds a data usage log table that stores a department to which a user belongs, information about an application for each user, a search tag used by the application, data information corresponding to the search tag, a given tag corresponding to each data piece, and user evaluation information related to the given tag. The tag domain presentation device generates a usage viewpoint extraction log table that is filtered from a data usage viewpoint from a record of the data usage log table, and generates a usage tendency evaluation table from the usage viewpoint extraction log table based on usage information about the user and the application for each department of the data and the user evaluation information, and presents a search formula of the tag for each department common as a data usage viewpoint based on the information.

公开(公告)号：US20210124733A1

公开(公告)日：2021-04-29

申请号：US17012906

申请日：2020-09-04

Applicant: Hitachi, Ltd.

Inventor： Nobukazu KONDO ,  Jumpei OKOSHI ,  Kentaro KAKUI ,  Tsunehiko BABA

IPC: G06F16/23 ,  G06F16/245 ,  G06F16/248

Abstract: A computer system manages a data lake storing collected data, which is obtained from a data source, a data catalog storing first catalog data, and an asset catalog storing second catalog data. The computer system comprises: a catalog generation module configured to generate the data catalog, and the asset catalog; and a catalog link generation module configured to associate, in a case where at least one of the data catalog or the asset catalog is generated by the catalog generation module, the asset catalog and the data catalog with each other by adding, as an access key, a value that is stored in the first catalog data stored in the data catalog to the second catalog data stored in the asset catalog.

公开(公告)号：US20250021455A1

公开(公告)日：2025-01-16

申请号：US18605543

申请日：2024-03-14

Applicant: Hitachi, Ltd.

Inventor： Jumpei OKOSHI ,  Yohsuke ISHII ,  Tatsuhiko MIYATA

IPC: G06F11/263

Abstract: Based on a state transition table of each of individual services and a state transition correspondence table that shows the correspondence relationship between a state transition in each individual service and a trigger event that triggers a state transition of another individual service caused by that state transition, a test scenario generation portion 15 generates a test scenario indicating a state transition pattern of a test target service and a state transition pattern of a coupling destination service that occurs in conjunction with that state transition pattern. A stateful pact generation portion 16 generates a stateful pact describing a response of the coupling destination service that takes into account the transition pattern of the coupling destination service. Based on the test scenario and the stateful pact, a test program generation portion 17 generates a pact test program, which is a program for conducting a test.

公开(公告)号：US20230281329A1

公开(公告)日：2023-09-07

申请号：US17945958

申请日：2022-09-15

Applicant: Hitachi, Ltd.

Inventor： Tsunehiko BABA ,  Jumpei OKOSHI ,  Hiroaki MASUDA

IPC: G06F21/62

CPC classification number: G06F21/6218

Abstract: A policy can be easily and appropriately set. A policy setting control device 100 that controls setting of a policy for controlling access to a resource includes a processor. The policy includes a resource to be accessed, a subject who accesses the resource, and an access operation. The processor receives an input policy 11 which is a candidate to be newly set, acquires an attribute value corresponding to values of a subject and a resource included in the input policy 11, generates one or more post-conversion policies 103 by changing the values of the subject and the resource included in the input policy 11 to the acquired attribute value, and sets the input policy as a new policy when all the generated post-conversion policies 103 are consistent with an existing policy.

公开(公告)号：US20220398555A1

公开(公告)日：2022-12-15

申请号：US17683705

申请日：2022-03-01

Applicant: Hitachi, Ltd.

Inventor： Shotaro NODA ,  Jumpei OKOSHI ,  Toshihiko KASHIYAMA ,  Tsunehiko BABA

IPC: G06Q20/10 ,  G06Q20/06 ,  G06Q20/38 ,  H04L67/1097

Abstract: A distributed transaction in which appropriate patterns are combined without modifying implementation of a management system even when a service characteristic of a participating system changes. A management system receives input of a distributed transaction flow defining respective call sequential numbers of participating systems and service characteristic information representing respective service characteristics of the participating systems. The management system specifies an applied pattern for each of the participating systems based on pattern information including information for each pattern that represents a constraint condition of a service characteristic of a participating system as a call target. The applied pattern is a pattern satisfying the constraint condition corresponding to the service characteristic of the participating system. The management system generates a pattern-applied call program for each of the participating systems, and generates a distributed transaction program based on the pattern-applied call programs and a call sequence of the participating systems.