Hitachi, Ltd.

Akihiko Yamaguchi

Atsushi Hatakeyama

Katsumi Tada

Tadataka Matsubayashi

Natsuko Sugaya

Yasuhiko Inaba

Nobuo Beniyama

Mikihiko Tokunaga

Kota Saito

Tatsundo Aoshima

Hideo Ohata

Yousuke Ushiroji

In a case where a master virtual machine, which is constructed on the basis of master information for configuring either part or all of a virtual machine, and an individual virtual machine, which is constructed on the basis of individual information that is configured partially or entirely in accordance with the master information, exist as the types of virtual machines that a physical client provides to a user terminal, a security check of a plurality of virtual machines is selectively executed, with respect to each check item, for a virtual machine of the type corresponding to the contents of the check item.

Security management device and method

An evaluation system evaluates the suitability of an application in a plurality of types of application execution environments based on the characteristics of this application and the usage of this application by a user. The evaluation system displays information denoting the result of this evaluation.

System and method for evaluating application suitability in execution environment

A method for controlling a management computer connected to a server for permitting communications therebetween, wherein the server transmits to a client the result of processing executed in response to each processing request sent from the client. The management computer stores an allowance for a value indicative of a load on the server, receives from the server a value calculated on the basis of the number of processing requests from the client and the value indicative of the load on the server. The management computer calculates an allowance for the value calculated from the number of processing requests, based on the value calculated from the number of processing requests, the allowance for the value indicative of the load, and the value indicative of the load, and transmits to the server the calculated allowance for the value calculated from the number of processing requests.

Method for controlling a management computer

A host group which uses a specific port as a data transfer path is retrieved to be detected from data transfer paths of respective hosts, and then such a report of an I/O conflict is generated in which only performance data of the retrieved host group is extracted. As a result, such a condition that I/O loads are concentrated to a specific port employed in an SAN (Storage Area Network) can be easily detected, and such hosts which give the loads can be readily specified.

Method of managing a storage area network

In document retrieval having the relevance feedback function to modify a searching profile for retrieval on the basis of a user's evaluation to evaluate a search result as pertinent or impertinent, recommencement of the relevance feedback returned to a desired time is permitted. An evaluation inputted by a user, a searching profile modified by the evaluation and a search result based on the searching profile are all saved while making the correspondence between them. When a request for restoration of searching profile is made, a searching profile corresponding to an evaluation designated by the user is restored.

Method and system for retrieving a document and computer readable storage medium

If a failure occurs in a certain layer of a conventional hierarchical backup system, the lower layers are also affected by the failure. If, for instance, a failure occurs in the second layer, a backup process cannot be performed in the third layer so that an improper backup results in the fourth layer. When a failure occurs in a certain layer of a hierarchical backup system of the present invention, the influence of the failure is minimized by causing a lower layer to substitute for the layer where the failure exists, by making backups skipping the layer where the failure exists, or by reducing the backup intervals for the lower layers.

Backup method on a hierarchical backup system

A document retrieval method using a computer program includes retrieving a first set of documents using a first query expression generated by the computer program. The first set of documents is provided to a user. An evaluation of the first set of documents is received from the user. The first query expression is changed to a second query expression generated by the computer program based on the evaluation.

Document retrieval method and system and computer readable storage medium

A text mining method whereby documents (texts) can be analyzed from a wide variety of visual points. The text mining method includes: distinctive word and/or phrase extraction step of extracting words and/or phrases characteristically emerging in a processing subject document set obtained by taking out whole or a part of a set of documents registered beforehand; definition information setting step of setting definition information including a specified word or phrase or specified bibliography information; coincident word and/or phrase acquisition step of acquiring coincident words and/or phrases coincident in a predetermined range with a word or phrase or bibliography information included in said definition information from among words and/or phrases extracted at said distinctive word and/or phrase extraction step; and multiplex coincident word and/or phrase acquisition step of acquiring coincident words and/or phrases coincident in a predetermined range with an individual word or phrase or bibliography information acquired from each of a plurality of different definition information pieces.

Text mining method and apparatus allowing a user to analyze contents of a document set from plural analysis axes

A document retrieval system is provided which has a document display interface which is easy to recognize the important portions even if a document retrieved by using a query expression designated by a document or a long sentence is displayed. When a text is registered, predetermined character strings and location information which are extracted from the text are stored in a location information file. A weight of each character string is calculated by a predetermined method and is stored in a weight file. In retrieving a document, predetermined character strings are extracted from a designated query expression. A similarity is calculated between the query expression and texts in the database by using the location information and the weights acquired from the location file and the weight file. In displaying the document, character strings having the high weights are extracted from the character strings used for the retrieval. Then, the display format of a portion which contains the extracted character strings is changed to display the text.

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Yokohama, Japan

Akihiko Yamaguchi