Patents Assigned to Hitachi, Ltd.
-
Publication number: 20230334072Abstract: A customer inputs a question sentence indicating a problem that the customer needs to resolve, to an automatic question answering system, and the system answers the question sentence. A history of the conversation is recorded in the system as conversation history data. When the system fails to give a suitable answer in a question-and-answer session, the system escalates the question to a support representative. In such a case, the question sentences and an answer sentence given by the support representative to resolve the problem are added to question-answer pair data as new question-answer pairs. The accuracy of automatic question answering is thus enhanced.Type: ApplicationFiled: February 17, 2023Publication date: October 19, 2023Applicant: Hitachi, Ltd.Inventors: Keiichi MATSUZAWA, Mitsuo HAYASAKA
-
Patent number: 11789613Abstract: In a storage system in which a plurality of pieces of control software constituting a redundancy group are distributedly arranged in a plurality of storage nodes, control software in an active state out of the plurality of pieces of control software constituting the redundancy group receives a write request from a higher-level device. The control software in the active state writes data related to the write request by mirroring into a cache memory of a storage node in which the control software in the active state is arranged and a cache memory of a storage node in which control software in an inactive state belonging to the same redundancy group is arranged. The control software in the active state sends a write completion response to the higher-level device, and redundantly stores the data written in the cache memories in a storage device.Type: GrantFiled: March 9, 2022Date of Patent: October 17, 2023Assignee: HITACHI, LTD.Inventors: Shintaro Ito, Sachie Tajima, Takahiro Yamamoto, Masakuni Agetsuma
-
Patent number: 11787437Abstract: A driving domain management unit which includes a change pattern setting portion that selects one of multiple typical patterns previously patterning drivable domains based on input information changing in time series; a driving condition monitor portion that determines an event based on collected event related information from the outside; an exclusion domain management portion that determines an exclusion domain prohibiting driving of the vehicles in preference to the driving permission domain based on position information about the event, the position information being contained in the event related information used for the determination of the event; a distribution portion that distributes, to the vehicles, the selected typical pattern and the information about the determined exclusion domain or the information based on these pieces of information; and a data storage portion that stores the multiple typical patterns and the exclusion domain information.Type: GrantFiled: November 1, 2021Date of Patent: October 17, 2023Assignee: Hitachi, Ltd.Inventors: Takashi Matsumoto, Akihiro Kondo
-
Patent number: 11792650Abstract: An unauthorized communication detection apparatus comprises: a reception module configured to receive operational data; a transmission module configured to transmit the operational data; an acquisition module configured to acquire a correction value for correcting a determination expression for calculating a score for determining whether the operational data is involved in unauthorized communication, based on a parameter for extending an application range of a specific learning model and on a specific feature amount corresponding to the specific learning model among a plurality of feature amounts of the operational data; a determination module configured to calculate the score based on the plurality of learning models, the plurality of feature amounts, and the correction value, and determine whether the operational data is involved in unauthorized communication based on the calculated score; and a transmission control module configured to control the transmission of the operational data based on a determinatiType: GrantFiled: September 10, 2019Date of Patent: October 17, 2023Assignee: Hitachi, Ltd.Inventors: Hiroki Hanawa, Kenji Naka, Tsuyoshi Taniguchi
-
Patent number: 11790661Abstract: To generate a prediction image in which an outline of an object is clear and existence of the object is easily recognized, the image prediction system that generates a future prediction image and includes a gaze unit, a working memory unit, a control unit, and a generation model unit. The gaze unit controls a region including an object included in an observation image as a first gaze region. The working memory unit controls the first gaze region as a second gaze region when a difference in the first gaze region between the observation image and a prediction image is equal to or less than a predetermined value. The generation model unit generates prediction images of the first gaze region and the second gaze region. The control unit integrates the prediction image of the first gaze region and the prediction image of the second gaze region to generate a prediction image.Type: GrantFiled: December 18, 2020Date of Patent: October 17, 2023Assignee: HITACHI, LTD.Inventors: Tadayuki Matsumura, Kanako Esaki, Hiroyuki Mizuno, Kiyoto Ito
-
Patent number: 11789439Abstract: Sensor combinations that are effective for failure sign diagnosis are automatically generated in consideration of hidden relationships between sensor data. The present invention includes: a time shift data generation unit 106 that processes sensor data acquired from an instrument and generates the processed sensor data; and a sensor combinations/pre-processing condition generation unit 112 that generates sensor combinations on the basis of correlation coefficients between the sensor data and the processed sensor data, and generates, as a preprocessing condition, a processing condition that increases a correlation coefficient between sensors for each sensor combination, in which the failure sign diagnosis of the instrument is performed on the basis of a change in the relationship between the sensor data included in the sensor combination and the processed sensor data.Type: GrantFiled: April 24, 2020Date of Patent: October 17, 2023Assignee: HITACHI, LTD.Inventors: Junsuke Fujiwara, Hideaki Suzuki, Toshiaki Kono, Toshiyuki Odaka
-
Publication number: 20230324862Abstract: A storage apparatus stores existing data including data relating to management of an instrument and data on actual records of the instrument, information on path structure of the existing data, mission information relating to a task in the facility operation, and information on the path structure of the mission information. An arithmetic operation apparatus extracts information on data meanings of terms contained in the existing data based on the existing data and the path structure of the existing data, and generates information of the degree of association between the plurality of terms. The arithmetic operation apparatus generates mission management information based on mission information, the path structure of the mission information, and the information on the degree of association between the terms, the mission management information including information on a meaning of each of a plurality of tasks relating to facility operation and chronological information on the plurality of tasks.Type: ApplicationFiled: March 30, 2023Publication date: October 12, 2023Applicant: Hitachi, Ltd.Inventors: Koji AMANO, Hiroki YAMAMOTO, Kazuma SAWADA, Kyohei NAKA, Hiroshi YAMADA, Yudai ZAMA, Yusuke IMURA
-
Publication number: 20230327876Abstract: An authentication apparatus holds: a combination of a concealment template generated from a secret key and biometric information through use of biometric cryptography and encrypted identity verification information obtained by encrypting identity verification information through use of the secret key; and biometric information on a user, and is configured to: extract the secret key from the concealment template through use of the biometric information on the user; acquire the identity verification information by decrypting the encrypted identity verification information through use of the extracted secret key; and verify identity of the user based on the acquired identity verification information.Type: ApplicationFiled: August 23, 2021Publication date: October 12, 2023Applicant: Hitachi, Ltd.Inventors: Yosuke KAGA, Kenta TAKAHASHI, Masakazu FUJIO, Wataru NAKAMURA, Yoshiko YASUMURA
-
Publication number: 20230325692Abstract: Provided is a search support device to perform a search related to a parameter representing an influence degree of a feature at high speed and with high accuracy. The search support device calculates at least one or more pieces of SHAP data indicating an influence degree of each feature in a trained model on output data output from the trained model; a process of generating compressed SHAP data, which is data obtained by compressing the SHAP data, for each of the SHAP data and storing the compressed SHAP data; verification target SHAP data which is SHAP data for output data output from the trained model by inputting input data to the trained model; a similarity between each of the calculated compressed SHAP data and the calculated verification target SHAP data, and specifies the compressed SHAP data in which the similarity with the verification target SHAP data satisfies a predetermined condition.Type: ApplicationFiled: March 8, 2023Publication date: October 12, 2023Applicant: HITACHI, LTD.Inventors: Giada Confortola, Mika Takata, Toshihiko Kashiyama
-
Publication number: 20230325190Abstract: The data processing management system includes a queue deployment system that deploys a queue with a processing description of stream processing having a branch instruction being an input. The queue deployment system designates processing to be preferentially executed for the processing description, measures throughputs in respective processing after the branch instruction, and obtains branch proportions that at which the respective processing after the branch instruction is executed. The queue deployment system then computes deployment costs in a case of deploying a queue between the branch instruction and the respective processing after the branch instruction, for combinations of the respective processing after the branch instruction using the throughputs and the branch proportions, and outputs a queue deployment pattern for preventing a decrease in a throughput of the processing to be preferentially executed among the respective processing after the branch instruction.Type: ApplicationFiled: March 9, 2023Publication date: October 12, 2023Applicant: Hitachi, Ltd.Inventors: Taichi HISATSUNE, Shinichiro SAITO
-
Patent number: 11782603Abstract: A bandwidth between a second processor and a second memory is higher than a bandwidth between a first processor and a first memory. The first memory stores a read command from a host computer. The first processor analyzes a content of the read command, and in accordance with a result of the analysis, requests read data from the second processor. In response to the request from the first processor, the second processor reads the read data from one or more storage drives and stores the read data in the second memory. The second processor notifies the first processor that the read data is stored in the second memory. The first processor transfers the read data read from the second memory, to the host computer without storing the read data in the first memory.Type: GrantFiled: March 9, 2022Date of Patent: October 10, 2023Assignee: Hitachi, Ltd.Inventors: Kentaro Shimada, Takashi Nagao, Naoya Okada
-
Patent number: 11785112Abstract: It is made possible to realize bidirectional communication safely on the cloud side, and on-premises side in a job execution system. It is checked whether or not there is an agent with the same logical name at time of agent registration. In a case that there is the same logical name, transfer performance required of each agent is checked, and communication is performed by rewriting a logical name during transfer by using an existing logical name for an agent required of the highest transfer performance, and using a logical name which is a new unique alias for the other agent.Type: GrantFiled: February 15, 2022Date of Patent: October 10, 2023Assignee: HITACHI, LTD.Inventors: Jun Mizuno, Takahiro Sagara
-
Patent number: 11784489Abstract: A supply and demand adjustment monitoring device of a power grid includes an output actual power value database that stores an output actual power value of at least one generator, an output power command value database that stores an output power command value issued to the generator, a planned adjustment capacity value database that stores a planned adjustment capacity value for the generator, and an adjustment capacity evaluation unit that evaluates an adjustment capacity based on the output actual power value, the output power command value, and the planned adjustment capacity value.Type: GrantFiled: February 8, 2019Date of Patent: October 10, 2023Assignee: HITACHI, LTD.Inventors: Yuki Tsujii, Toshiyuki Furukawa
-
Publication number: 20230315754Abstract: A distributed transaction control system includes redundant coordinator apparatuses, wherein determination part replaces input votes to votes of preparation failure when input votes from the participant apparatus time out, makes a determination of commit when all input votes are votes of preparation success, makes a determination of rollback when the input votes include at least one vote of preparation failure, and inputs a content of the determination into the distributed consensus processing part, the distributed consensus processing part decides on one of the contents of the determination that are inputs from the determination parts, by distributed consensus, and settlement part notifies an output of the distributed consensus processing part to the participant apparatuses as a settlement result.Type: ApplicationFiled: September 22, 2022Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Nobuyuki YAMAMOTO, Naoshi MANIWA, Junpei NISHITANI
-
Publication number: 20230315286Abstract: Provided is a processor configured to cause each of a plurality of servers to operate a storage node, configured to combine a plurality of the storage nodes to set a storage cluster, configured to perform a comparison between a maintenance plan for the storage cluster and a state of the storage cluster to modify the maintenance plan based on a result of the comparison, and configured to perform maintenance for the storage cluster in accordance with the maintenance plan modified.Type: ApplicationFiled: September 13, 2022Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Hiroto EBARA, Hideo SAITO, Takaki NAKAMURA, Misato YOSHIDA, Naruki KURATA, Takahiro YAMAMOTO
-
Publication number: 20230309884Abstract: A physiological measurement data processing device includes a reception unit receiving, from a user terminal of a user, physiological measurement data obtained by measuring a physiological state of the user with a sensor, a deviation assessment unit that assesses a deviation of the physiological measurement data received by the reception unit with respect to past physiological measurement data of the user, a subjective score assessment unit estimating a subjective score indicating a subjective state of mind and body of the user based on the physiological measurement data received by the reception unit, an uncertainty assessment unit that assesses an uncertainty of the subjective score estimated by the subjective score assessment unit, and a discrepancy assessment unit that assesses a discrepancy indicating a discrepancy regarding a usual state of the user based on the deviation assessed by the deviation assessment unit and the uncertainty assessed by the uncertainty assessment unit.Type: ApplicationFiled: February 8, 2023Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventor: Shunsuke MINUSA
-
Publication number: 20230319531Abstract: A network system comprises a communication facility, and a management apparatus. The communication facility includes a wireless base station, a data processing apparatus, and communication processing apparatuses. The management apparatus manages resource management information for managing, as a resource, a value of an item to be set for the communication facility to generate a network slice for each of characteristics of the network slice. The management apparatus generates the network slice, refers, based on a characteristic of the network slice, to the resource management information to determine the value of the item and transmits, to the communication facility, first setting information for setting the determined value of the item.Type: ApplicationFiled: September 15, 2022Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Tomoyuki IIJIMA, Masayuki TAKASE, Shiro MAZAWA
-
Publication number: 20230315892Abstract: An object of the invention is to appropriately separate an available cluster for each user in a storage system configured by using a plurality of clusters each of which is an aggregate of nodes. A computer system includes a plurality of K8s clusters each configured by one or a plurality of K8s nodes, a storage that provides a volume, and a tenant management unit that manages the plurality of the K8s clusters and the storage. The tenant management unit creates, in the storage, a plurality of tenants respectively corresponding to the plurality of the K8s clusters. The storage, for each of the plurality of the K8s clusters, permits access from the K8s cluster to a tenant corresponding to the K8s cluster and prohibits access from the K8s cluster to a tenant not corresponding to the K8s cluster.Type: ApplicationFiled: June 8, 2023Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Takaki NAKAMURA, Takahiro Yamamoto, Hideo Saito, Keisuke Matsumoto, Hiroto Ebara, Naruki Kurata
-
Publication number: 20230315345Abstract: A storage apparatus includes a plurality of storage controllers. Each of the plurality of storage controllers includes a controller interface for connecting the storage controllers. The controller interface includes one or more logical ports corresponding to each storage controller of the connection destination. When converting the first request of the first protocol used in the storage controller into the second request of the second protocol used in the inter-storage controller network, the controller interface stores the identification information of the first request and the identification information of the second request in the send queue of the logical port.Type: ApplicationFiled: September 19, 2022Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Katsuya TANAKA, Yutaro KOBAYASHI, Hideaki FUKUDA
-
Publication number: 20230319131Abstract: An information processing system including Application Platform capable of communicating with Edge1 connected to each other to be able to communicate each other, in which Application Platform includes a second processor, information on microservices and data possessed by Edge1, and performance information describing the performance of Edge1, and the second processor uses predetermined data to combine a plurality of predetermined microservices and causes Edge1 to execute them in a predetermined order. When executing the application, microservices and data are moved between Edge1 based on the information of the microservices and the data possessed by Edge1, and the performance information.Type: ApplicationFiled: June 8, 2023Publication date: October 5, 2023Applicant: Hitachi, Ltd.Inventors: Shimpei NOMURA, Mitsuo HAYASAKA, Kazumasa MATSUBARA, Eiichi INOUE