公开(公告)号：US20190158363A1

公开(公告)日：2019-05-23

申请号：US16122921

申请日：2018-09-06

Applicant: Hitachi, Ltd.

Inventor： Yuncheng ZHU ,  Yoshiteru TAKESHIMA

IPC: H04L12/24

Abstract: A data analysis device executes: acquiring time-series data including data of multiple items from an analysis target system; extracting data of at least, one first item from the time series data; calculating a feature of a temporal change of the data of the first item; extracting data of at least one second item from the time series data; calculating a feature of at least one of a relevance between the data of the first item and the data of the second item and a relevance between the data of the multiple second items; determining a model corresponding to the analysis target system on the basis of the feature of the temporal change and the change of the relevance; and setting the parameter in the analysis target system by using the parameter setting configuration of the model.

公开(公告)号：US20160283307A1

公开(公告)日：2016-09-29

申请号：US15033881

申请日：2015-03-18

Applicant: HITACHI, LTD.

Inventor： Yoshiteru TAKESHIMA ,  Yukiko TAKEDA ,  Masahiko NAKAHARA ,  Seiya KUDO

IPC: G06F11/07 ,  G06F11/34 ,  G06F11/30

CPC classification number: G06F11/079 ,  G06F11/0709 ,  G06F11/076 ,  G06F11/0787 ,  G06F11/2294 ,  G06F11/3006 ,  G06F11/3409 ,  G06F11/3452 ,  G06F11/3495 ,  G06F2201/81 ,  G06F2201/875 ,  H04L41/14 ,  H04L43/50

Abstract: A monitoring device executes: aggregating a number of messages for each type of message transmitted or received at nodes using test results; classifying the respective messages into either an original message that serves as an origin among messages transmitted and received by a system to be monitored, or a generated message that is generated in the system when the original message is transmitted to any of the plurality of nodes; analyzing a relationship between the original message and the generated message on the basis of a number of messages classified as the original message and a number of messages classified as the generated message, thereby creating a matrix indicating the relationship between the original message and the generated message; and determining that the system has undergone a failure if a value of an element inside the matrix is outside of a normal range.

Abstract translation: 监控设备执行：使用测试结果聚合在节点处发送或接收的每种类型的消息的多个消息; 将各个消息分类为在待监视的系统发送和接收的消息中作为起始点的原始消息，或者当原始消息被发送到多个节点中的任何节点时在系统中生成的生成的消息; 基于分类为原始消息的消息的数量和分类为生成的消息的消息的数量来分析原始消息和生成的消息之间的关系，从而创建表示原始消息与生成的消息之间的关系的矩阵 ; 并且如果矩阵内的元素的值在正常范围之外，则确定系统已经发生故障。

公开(公告)号：US20180365605A1

公开(公告)日：2018-12-20

申请号：US15921750

申请日：2018-03-15

Applicant: Hitachi, Ltd.

Inventor： Yoshiki KUROKAWA ,  Hiroki MIYAMOTO ,  Yoshiteru TAKESHIMA ,  Toshihiko KASHIYAMA

IPC: G06Q10/06 ,  G06Q10/08

Abstract: To shorten the simulation time without deteriorating the simulation accuracy. In a supply chain simulation system which performs simulation of a supply chain, a simulation data dividing unit creates a plurality of simulation divided input data obtained by consolidating and classifying, based on the transport-related information of each of the divided groups, simulation input data related to products of the plurality of items for each item in which the transport-related information of each of the divided groups are closely related to each other, and a plurality of simulators individually execute division simulation based on the plurality of simulation divided input data.

公开(公告)号：US20190180223A1

公开(公告)日：2019-06-13

申请号：US16122365

申请日：2018-09-05

Applicant: HITACHI, LTD.

Inventor： Yoshiteru TAKESHIMA ,  Hiroki MIYAMOTO ,  Yoshiki KUROKAWA

IPC: G06Q10/08

Abstract: A supply chain model generation system independently uses a business entity code and an item code representing an item related to a transaction in result information on a supply chain operation of a plurality of business entities; transaction information is extracted from the result information and a transaction time series information table is generated; a relationship in the transaction time series information table in each business entity is analyzed and a virtual business entity code on a supply side and a virtual business entity code on a demand side are assigned for each business entity code; and further a logical model information table where a virtual item code is assigned with respect to an item code related to the transaction of a business entity of the virtual business entity code on the supply side and a business entity of the virtual business entity code on the demand side is generated.

公开(公告)号：US20170206125A1

公开(公告)日：2017-07-20

申请号：US15314516

申请日：2015-05-27

Applicant: HITACHI, LTD.

Inventor： Yoshiteru TAKESHIMA ,  Masahiko NAKAHARA ,  Seiya KUDO ,  Yukiko TAKEDA

IPC: G06F11/07

CPC classification number: G06F11/0754 ,  G06F11/0709 ,  G06F11/30 ,  G06F11/34 ,  G06F11/3409 ,  G06F11/3495 ,  G06F2201/81 ,  H04L43/0817

Abstract: A monitoring system comprises: a measurement unit; and an analysis unit, wherein the measurement unit measures traffic information relating to messages inputted to a device to be monitored and messages outputted from the device to be monitored, and wherein the analysis unit calculates one or more indices on the basis of a prescribed relational expression and the measured traffic information, and detects that a specific change in state has occurred in the device to be monitored on the basis of the indices or a comparison between a change in the indices and a threshold.

公开(公告)号：US20140136694A1

公开(公告)日：2014-05-15

申请号：US14077481

申请日：2013-11-12

Applicant: HITACHI, LTD.

Inventor： Yoshiteru TAKESHIMA ,  Osamu NAMIKI ,  Yukio OGAWA ,  Yukiko TAKEDA

IPC: H04L12/26

CPC classification number: H04L43/12 ,  H04L41/064 ,  H04L43/00 ,  H04L43/026

Abstract: In a communication system in which a plurality of communication apparatuses perform communication via a communication network, a network abnormality detection system dynamically creates a monitoring rule during operation without defining information (monitoring rule) regarding communication to be monitored in advance and perform a collection process and an abnormality determination process quickly even when an amount of information to be monitored is vast. The network abnormality detection system copies packets transmitted at predetermined measurement positions in the communication network, calculates communication statistics information at each measurement position from the copied packets, analyzes one or more pieces of communication statistics information, and detects occurrence of communication abnormality.

Abstract translation: 在多个通信装置经由通信网络进行通信的通信系统中，网络异常检测系统在运行期间动态地创建监视规则，而无需事先确定关于要监视的通信的信息（监视规则）并执行收集处理， 即使当要监视的信息量大时，异常判定处理也很快。 网络异常检测系统复制通信网络中在预定测量位置发送的分组，从复制的分组计算每个测量位置的通信统计信息，分析一个或多个通信统计信息，并检测通信异常的发生。