Hitachi, Ltd.

Nippon Telegraph and Telephone Corporation

Fujitsu Corporation

Nec Corporation

Hitachi Software Engineering Company, Ltd.

Hitachi Vlsi Engineering Corp.

Hitachi Microcomputer Engineering, Ltd.

Central Research Institute of Electric Power Industry

Hitachi Communication System, Inc.

Yukio Nakano

Yoshihiro Ashi

Masashi Tsuchida

Masahiro Takatori

Morihiro Iwata

Hiroyuki Nakano

Satoshi Aoki

Shinya Sasaki

Shin Nishimura

Keiji Tomooka

Naohiro Sakakida

Hironari Matsuda

Norihiro Hara

Toru Kazawa

Ryoji Takeyari

Yoshito Kamegi

Nobuo Kawamura

Toshiki Sugawara

Takashi Mori

Tadayuki Kanno

Susumu Kobayashi

Shunichi Torii

Masaki Ohira

Masato Asami

Kazuyoshi Negishi

Akihiko Takase

Takahiko Kozaki

Shinobu Gohara

Hiromi Ueda

Yuki Sugimoto

Yoichi Yamamoto

Yasushi Takahashi

Hiroki Ikeda

Hiroyuki Fujita

Tohru Kazawa

Nobuyuki Yamashita

Minoru Maeda

Hiroyuki Kitajima

Toru Baji

Hideaki Tsushima

Kenji Takeda

Yoshitaka Takasaki

Tetsuya Nakagawa

Tatsundo Aoshima

Masao Mizukami

Takafumi Chujo

Shiro Tanabe

Junichirou Yanagi

Shotaro Ohno

Yoshitaka Takahashi

Shigeo Amemiya

Takashi Onoda

Yoichi Sato

Ryuichi Ikematsu

Naoya Kobayashi

Takatoshi Kurano

Yasushi Sawada

Masahiro Koya

Youichi Igarashi

Akihiro Hori

Michio Iijima

Kiyoshi Yata

Satoshi Shinagawa

Hirotsugu Kojima

Tadashi Ohsone

Toshio Honma

Hideo Mutoh

Kentaro Chigusa

Koichi Shimazaki

Yoshitaka Tokusho

Yoshiaki Takemura

Kenji Akutsu

Ikuo Tokizawa

Yoshihiro Yano

Shoo Urabe

Nobuhiro Taniquchi

Keiichi Ishida

Kenji Tomooka

Ryoji Tateyari

Kyoji Takeyari

Yoshihiko Miyano

Masatoyo Sumida

Takashi Kotera

Yuusuke Morita

Shohei Matsuura

Katsuhisa Yoshimoto

Kentarou Chigusa

A DBMS manages a database including a structured data group capable of communicating with a plurality of execution nodes that manage an unstructured data group and execute parallel distributed processing. Each of the plurality of execution nodes is capable of creating data to be processed based on at least one structured data of the structured data group managed by the DBMS and at least one unstructured data of the unstructured data group managed by the plurality of execution nodes, and performing processing using the data to be processed. Based on control information (information about controlling the provision of two or more structured data designated in a reference request sent to the DBMS), the two or more structured data are acquired by the DBMS from the database, and provided from the DBMS to two or more execution nodes among the plurality of execution nodes.

Data processing system, database management system, and data processing method

A search method and apparatus, and storage medium capable of enhancing response accuracy of a search result is proposed. A search apparatus for searching among a plurality of conversation history documents, each of which includes an inquiry from a customer and a response to the inquiry, for the conversation history documents whose content of the inquiry is similar to an inquiry text representing content of a new inquiry from the customer: classifies the plurality of conversation history documents into a plurality of clusters according to content of the conversation history documents; extracts a conversation history document representative of each of the clusters as a representative document for the relevant cluster; and searches for the conversation history documents having a relation with the inquiry text and presents the representative document for the cluster, to which the conversation history documents detected by the search belong, as a result of the search.

Search method and apparatus and storage medium

A data analysis method for analyzing data on a data analysis apparatus having: setting, a plurality of dimension tables each having a first identifier for identifying data to be analyzed and attributes corresponding to the first identifier; setting, a history table having a second identifier associated with each of the first identifiers of the dimension tables, and having attributes corresponding to the second identifier; setting, a relation table for storing attributes relating to the first identifier, the dimension tables having a first dimension table associated with the relation table through the attribute relating to the first identifier; associating, the first identifiers that refers to the first identifier of a first dimension table with the attributes; and processing, a query for the relation table and the first dimension table, and generating a second dimension table.

Data analysis method, data analysis device, and storage medium storing processing program for same

A virtual machine deployment determination unit that manages a plurality of physical machines as machines in which a virtual machine is to be deployed acquires setting information including a type of software that is running on the virtual machine and an operating policy of the software, refers to deployment condition determination information which prescribes a deployment condition for selecting the physical machine to become the deployment destination of the virtual machine is associated with the operating policy of the software and stored therein based on the acquired setting information, and determines the physical machine to become the deployment destination of the virtual machine by selecting the physical machine among the plurality of physical machines based on the referral result.

Computer, virtual machine deployment method and program

In reference, update, and insertion processing, the lock of an un-transferred object is released, and then the lock of a transferred object is set when the pointer is traced for transfer between objects to thereby improve the parallel execution capability of the reference, update, and insertion. At that time, the IS-mode (in the case of reference processing) or the IX-mode (in the case of update and insertion processing) is set at the starting of the processing, and the lock is released at the time of completion of the processing. Furthermore, in deletion processing, after the pointer to a deletion target is separated or replaced and all the processing that acquires the lock of an object group has been completed, the region of the deletion target object is released.

Data processing method, data processing apparatus, and data processing program

A method for creating an index for searching a structured document having a document data-structure stored, in a computer. The method to be performed in the computer for creating an index includes the steps of: analyzing a structured document to extract a document data-structure in the structured document; normalizing the extracted document data-structure to create a logical structure index composed of a plurality of elements having a hierarchical structure; extracting an appearance number of each element in the created logical structure index; and extracting elements for creating the index, based on the logical structure index, by comparing the extracted element appearance number and a first predetermined threshold.

Method, system and program for creating an index

A database system for storing table data as divided in a plurality of storages has a processing request acceptance section and an execution section which, at the time of rebalancing already stored data in response to addition of a storage, can execute inquiry operations concurrently. The system determines data to be moved from existing storages to the additional storage. When search, update and delete processing requests are issued during execution of the rebalance operation of copying the data to the additional storage and deleting the original data, both the DBMS acceptance section and DBMS executor section execute the operation corresponding to the requests. When an insert processing request is issued, the system determines a data insert destination on the basis of contents of a step of dividing the data from the existing storages to the additional storage.

Database management system with rebalance architectures

A method of allocating storage areas, intended to reserve the storage areas formed on a storage device for storing data, this method including the steps of: registering beforehand as a storage configuration information table, information on multiple storage areas to be managed and on the position where the storage device is installed; registering information on the purposes of use and positions of the storage areas beforehand as a position management table; acquiring position information from the position management tablein accordance with an allocation request for a storage area associated with the purpose of use; selecting an unallocated storage area from the storage configuration information tablewith reference to the position information; and sending information on a selected area to a client from which the allocation request was issued.

Allocating storage area according to physical position information of a storage device

Configuration adjustment processing receives database configuration information and parameter adjustment policy information from an application. When database configuration information received from another application exists in DBMS, the configuration adjustment processing reads in the database configuration information and makes adjustment of the inputted database configuration information and the existing database configuration information in accordance with the parameter adjustment policy information. The configuration adjustment processing updates the existing database configuration information on the basis of the adjusted database configuration information.

Method, system and program for constructing a database

An overhead passing processing circuit in a synchronous multiplex network, with a circuit for extracting predetermined administration and maintenance operating information from multiplexed signals, a crossconnecting circuit for crossconnecting information extracted by the extraction circuit stage, and an insertion circuit for inserting an output of the crossconnecting circuit into a predetermined location in the overhead of the multiplexed signal to be transmitted.

Multiplex transmission apparatuses, multiplex transmission networks, and operation method therefor

The present invention relates to a method for allocating volumes having a suitable physical location relationship based on a method of use of files by applications. When an application management unit receives an application area expansion request, a distribution request table is created based on a preset distribution rule table and a file management table. The distribution rule table includes a flag indicating whether or not files stored on a logical disk for allocation, and existing files, may be stored on the same disk drive. A storage management unit selects, in consideration of the distribution request table, a logical disk having suitable physical attributes from unused logical disks satisfying basic conditions such as requested size and RAID configuration. The selected logical disk is allocated to the application.

Storage system including a device, data management unit, control unit and/or primary computer, and method, for allocating storage area

An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

Optical transmission system constructing method and system

A parallel database system retrieval method and system for transferring from database operation servers to a front end server only those data items that are used in subsequent processing, thereby shortening the query time when the unused data are massive. The invention allows an initial retrieval query to transfer only location information about the target data from a database operation server to the front end server. Using the location information the invention permits a subsequent query to get variable-bound location information so that the latter query will retrieve a desired sub-data item according to the acquired location information and dictionary information about the sub-data item locations within the data.

Querying database system to execute stored procedures using abstract data type attributes, retrieving location information of data, sub-data between first and second servers

To store data in an insertion process, a processthat inserts data into a new block and a processthat inserts, within the block reserved, data into areas that became free when data was deleted are prepared. A switching event to switch from the processto the processis designated in advance. The occurrence of the designated event is checked while executing the processin an insertion process, and if the designated event occurs, the insertion process executes the process. If during the execution of the process, areas that can be reused become depleted, the execution of the insertion process reverts back to the process. As a result, free areas resulting from deletions can be reused according to the switching event designated.

Method for reserving pages of database

Growing community of inventors

Oyama, Japan

Yukio Nakano