Hitachi, Ltd.

Kazuhide Aikoh

Keisuke Hatasaki

Eri Teruya

Yoshifumi Takamoto

Nobukazu Kondo

Takashi Tameshige

Toshihiko Kashiyama

Tsunehiko Baba

Ken Sugimoto

Akihisa Nagami

Masafumi Kinoshita

Kentaro Kakui

Jumpei Okoshi

Go Kojima

Takeshi Teramura

Shouchun Peng

Jose Luis Beltran-Guerrero

Yujirou Ichikawa

Arif Herusetyo Wicaksono

Among pieces of attribute information contained in a document, user-designated attribute information and other attribute information that may give additional value to the user-designated attribute information are accurately and efficiently presented. An attribute extraction apparatus includes a storage section that stores a document; and a computing section that executes a process for calculating a predetermined index on the basis of the document's structure with respect to a relationship between a plurality of pieces of attribute information described in the document, and a process for calculating an importance degree of each piece of the attribute information other than predetermined attribute information for the predetermined attribute information on the basis of at least one of the index and a predetermined statistical property with respect to a relationship between the predetermined attribute information and the attribute information other than the predetermined attribute information among the plurality of pieces of the attribute information.

Attribute extraction apparatus and attribute extraction method

Example implementations described herein involve extracting keywords and dependency information from a text; and generating a co-occurrence dictionary for the text, the generating the co-occurrence dictionary involving selecting ones of the keywords for inclusion in the co-occurrence dictionary based on a number of times the ones of the keywords satisfy the dependency rules; determining for the selected ones of the keywords included in the co-occurrence dictionary, surrounding words to be associated with the selected ones of the keywords in the co-occurrence dictionary based on a number of instances of co-occurrence of the surrounding words with the selected ones of the keywords; and generating weights for each of the selected ones of the keywords in the co-occurrence dictionary based on a number of the surrounding words associated with the selected ones of the keywords.

Method and system for extracting keywords from text

A technology is disclosed that makes it possible even for an analyst, who has poor knowledge relating to field data, to select and use analysis data in analysis. A data catalog automatic generation system that generates a catalog tag to be used to select analysis data from collected field data is configured such that, based on a set classification rule input, a relationship between an objective variable as an analysis perspective relating to field data and an explanatory variable or a causal relationship between a plurality of the explanatory variables is extracted, and based on a result of the extraction, a catalog tag of the objective variable and a catalog tag of the explanatory function are specified and attached.

Data catalog automatic generation system and data catalog automatic generation method

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.

Data selection system and data selection method

A first system receives values with identifiers of the values from one or more clients. The first system enters the values sequentially into a first data store. The first system associates each of the values with a sequence ID indicating a position in entry sequence of the values into the first data store. The first system transmits a first identifier of a first value and a first sequence ID associated with the first value to a second system. The first system transmits the first sequence ID and the first value to the second system after transmitting the first identifier and the first sequence ID. The second system holds the first identifier and the first sequence ID transmitted from the first system in a first queue. The second system enters the first value received after the first identifier from the first system into a second data store.

Information processing system

An object of the present invention is to acquire exact related data in short time. The present invention relates to a data management system, the data management system is configured by a computer provided with an arithmetic unit that executes predetermined processing and a storage connected to the arithmetic unit, and the data management system is provided with a presentation unit that presents relationship between tags to a user and accepts selection of the relationship between tags and a determination unit that determines related data to be recommended on the basis of tags applied to data acquired in retrieval, referring to the selected relationship between tags.

Data management system and related data recommendation method

The present invention relates to a distributed processing system having a master node and a plurality of worker nodes. Each worker node has an assigned identifier. A worker node caches in its own memory first output data, which is the result of the execution of a first task, and copies said first output data to another worker node. The master node selects, on the basis of the identifier information of the first worker node, a worker node to which to assign a second task, wherein the first output data is used as input data.

Distributed processing system, task processing method, and storage medium

A plurality of nodes includes an I/O (Input/Output) node and a plurality of computation nodes. Each computation node sends an I/O request to the I/O node. The I/O node includes a first storage device which stores data to be written or read according to the I/O request and a first memory device on which a first cache area is based to temporarily store the data written in the first storage device or read from the first storage device. The computation node includes a second memory device on which the second cache area is based to temporarily store the data according to the I/O request. At least one of the I/O node and the computation node stores management information which contains information on a physical storage area in the cache area of the other one of the I/O node and the computation node, and information on a virtual storage area which is associated with the physical storage area and has a part of its own cache area. A target node in the plurality of nodes controls arrangement of data stored in the second cache area based on the management information of the computation node or the management information of the I/O node.

Computer system and cache control method

A converged system and migration method capable of preventing system performance degradation with respect to data transfer is proposed. A first calculation node continues executing I/O processing in response to an I/O request from an application; and, upon execution of the I/O processing, the first calculation node issues an I/O processing event notice indicating a transfer status of data on which the I/O processing has been executed. When receiving a migration command from a migration management unit, a second calculation node judges whether or not data stored in a first I/O node is data which should be transferred, based on the I/O processing event notice; and then transfers the data, which should be transferred, to a third calculation node.

Converged system and storage system migration method

In a computer, a logical partition for calculation in which an OS and an application operate and a logical partition for storage for providing a storage function are constructed. In the logical partition for calculation, a device corresponding to a storage device is provided, while the logical partition for storage provides a volume. A memory space that can be shared by the both logical partitions is prepared, and management information describing a sorting destination or a sorting method of an I/O request issued by an application is provided in the memory. If the logical partition for calculation receives an I/O request from the application, the partition refers to the management information and sorts the I/O request to the storage device or the logical partition for storage. The logical partition for storage processes the received I/O request by the storage function and transmits the result to the storage device.

Computer realizing high-speed access and data protection of storage device, computer system, and I/O request processing method

At least one of a first application program and a second application program sends an access request to a second cache management module, which receives the access request, and references the second cache management table to identify the storage location of the access-target data conforming to the access request. When access-target data exists in first cache area, the second cache management module sends a request to the first cache management module storing the access-target data, and where access-target data does not exist in the first cache area, acquires the access-target data from the second storage device. When the access-target data is in first cache area, the first cache management module acquires the access-target data conforming to the request from the relevant first cache area, and sends access-target data to the second cache management module.

Computer system with virtualization mechanism and management table, cache control method and computer program

Devices unnecessary for deployment are invalidated during the deployment. A method of building a system and a management server for establishing a system according to the present invention have the following configuration. The management server obtains server information from a server connected through a network, refers to the obtained server information to select devices unnecessary for deployment among devices connected to the server, and invalidates the selected devices.

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Tokyo, Japan

Kazuhide Aikoh