公开(公告)号：US20250053750A1

公开(公告)日：2025-02-13

申请号：US18791514

申请日：2024-08-01

Applicant: Hitachi, Ltd.

Inventor： Kohei MATSUSHITA ,  Masaki HAMAMOTO ,  Masayoshi MASE ,  Masashi EGI

IPC: G06F40/35

Abstract: A computer system stores a large-scale language model that receives an instruction sentence as an input and outputs an interpretation sentence for interpreting a result of an inference, and text template information that stores template data in which a characteristic of a contribution value of a feature in a group having features is associated with a template of the instruction sentence, calculates the contribution value of each of a plurality of the features, generates a plurality of groups each constituted with one or more of the features, acquires, for each of the plurality of groups, the template data by referring to the text template information based on the characteristic of the contribution value of the feature included in the group, generates, based on the template data and the feature included in the group, the instruction sentence to be input to the large-scale language model, and outputs the interpretation sentence obtained.

公开(公告)号：US20180274929A1

公开(公告)日：2018-09-27

申请号：US15756716

申请日：2016-04-06

Applicant: HITACHI, LTD.

Inventor： Masayoshi MASE ,  Yuxin LIANG ,  Junji YAMAMOTO

IPC: G01C21/20 ,  G08G3/02

Abstract: Provided is a technique for reducing the calculation load in navigation management of a moving body within a freely navigable space. The system has a storage unit 21 for storing movement locus data showing a plurality of movement loci in which a moving body is moved in a two-dimensional or three-dimensional space in which free movement is possible; a network model management unit 11 for integrating sections approximated by the plurality of movement loci on the basis of the movement locus data, and generating a network model showing a route within the space; a navigation schedule calculation unit 13 for calculating a navigation schedule when a plurality of moving bodies planning to pass within the space navigate within that space according to the network model route; and a display processing unit 15 for outputting the calculated navigation schedule to a display apparatus.

公开(公告)号：US20210117831A1

公开(公告)日：2021-04-22

申请号：US17071482

申请日：2020-10-15

Applicant: Hitachi, Ltd.

Inventor： Yuyao WANG ,  Masayoshi MASE ,  Masashi EGI

IPC: G06N5/04 ,  G06N20/00

Abstract: To more appropriately explain bases of estimation in a machine learning model that estimates appropriate outputs as responses to a temporally changing state. A machine learning model estimates an appropriate output in an environment with a temporally changing state. One or more processors acquire an episode. The episode includes steps at different times. Each step in the steps indicates a state of the environment, and an output selected by the machine learning model in the state. The one or more processors form a plurality of phases including one or more consecutive steps on a basis of one or more changing indicators in the episode, and generate data that explains a basis of the machine learning model in the plurality of phases.

公开(公告)号：US20240169220A1

公开(公告)日：2024-05-23

申请号：US18379537

申请日：2023-10-12

Applicant: Hitachi, Ltd.

Inventor： Masayoshi MASE ,  Kohei MATSUSHITA ,  Masaki HAMAMOTO ,  Masashi EGI

IPC: G06N5/04

CPC classification number: G06N5/04

Abstract: A computer system is accessibly connected to model management information for managing model data, risk assessment management information for managing risk assessment data, and evaluation method management information for managing evaluation method data, and generates, as relation data, association of, model data, risk assessment data, and evaluation method data in a template. The computer system is configured to, when receiving an evaluation request, by referring to the model management information, search for model data of a model to be evaluated, search for the relation data associated with the model data, generate a template based on the relation data, store, in association with the relation data, an evaluation result based on an evaluation method corresponding to the evaluation method data associated with the relation data, and generate a report based on the template and the evaluation result.

公开(公告)号：US20240046124A1

公开(公告)日：2024-02-08

申请号：US18223696

申请日：2023-07-19

Applicant: Hitachi, Ltd.

Inventor： Kohei MATSUSHITA ,  Masayoshi MASE ,  Yasuhide MORI

IPC: G06N5/04

CPC classification number: G06N5/04

Abstract: A computer system includes an arithmetic device and a storage device. The storage device stores a model configured to output an action predicted based on an action value in response to input data. The arithmetic device is configured to acquire data to be explained including values of a plurality of components to be explained in order to explain first prediction processing of the model that outputs a first predicted action in response to first input data, determine contributions of each of the plurality of components to be explained to an action value and an uncertainty of the action value in the first prediction processing, detect one or more risk components in the first prediction processing from the plurality of components to be explained based on the contributions, and present information on the risk components.

公开(公告)号：US20200034738A1

公开(公告)日：2020-01-30

申请号：US16504897

申请日：2019-07-08

Applicant: Hitachi, Ltd.

Inventor： Masashi EGI ,  Yuxin LIANG ,  Naoaki YOKOI ,  Masayoshi MASE ,  Naofumi HAMA ,  Yasuhide MORI ,  Hiroyuki NAMBA

IPC: G06N20/00 ,  G06F16/22

Abstract: There is provided is a computer system that outputs a predicted value of data to be evaluated using a predictor generated using learning data. The computer system includes the predictor; an index calculation unit that calculates an interpretation index of the data to be evaluated; and an extraction unit that selects the learning data useful for a user to interpret the predicted value of the data to be evaluated, wherein index management information for managing an interpretation index of the learning data is stored, the index calculation unit calculates the interpretation index of the data to be evaluated, and the extraction unit calculates a selection index based on the interpretation index of the data to be evaluated and the interpretation index of the learning data, selects the learning data based on the selection index, and outputs display information for presenting information indicating a processing result.

公开(公告)号：US20160210181A1

公开(公告)日：2016-07-21

申请号：US14915299

申请日：2014-01-29

Applicant: HITACHI, LTD.

Inventor： Katsuro KIKUCHI ,  Masashi EGI ,  Daisuke TASHIRO ,  Takao SAKURAI ,  Masayoshi MASE

IPC: G06F11/07

CPC classification number: G06F11/079 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/3409 ,  G06F11/3419 ,  G06F11/3452 ,  G06F11/3476 ,  G06F2201/875

Abstract: An analysis apparatus is connectable to a terminal capable of displaying web pages by accessing a web server capable of executing a web application. The analysis apparatus comprises a processor, a memory and an interface. The processor is configured to perform the following processing of: receiving at least one log concerning the web application stored in the terminal from the terminal via the interface; acquiring a plurality of kinds of use condition feature values based on the log received, the plurality of kinds of use condition feature values being information characterizing conditions of use of the web application; analyzing whether a correlation exists between a first kind of use condition feature values and a second kind of use condition feature values in the plurality of kinds of use condition feature values acquired in the processing of acquiring; and outputting an analysis result obtained by the processing of the analyzing.

Abstract translation: 分析装置可连接到能够通过访问能够执行web应用的web服务器来显示网页的终端。 分析装置包括处理器，存储器和接口。 处理器被配置为执行以下处理：经由接口从终端接收关于存储在终端中的web应用的至少一个日志; 基于收到的日志获取多种使用条件特征值，所述多种使用条件特征值是表示web应用的使用条件的信息; 分析在获取的处理中获取的多种使用条件特征值中的第一种使用条件特征值和第二种使用条件特征值之间是否存在相关性; 并输出通过分析处理获得的分析结果。