公开(公告)号：US20200244688A1

公开(公告)日：2020-07-30

申请号：US16634964

申请日：2018-08-07

Applicant: NEC Corporation

Inventor： Etsuko ICHIHARA ,  Yoshiaki SAKAE ,  Shuichi KARINO ,  Hiroki TAGATO ,  Kazuhiko ISOYAMA ,  Yuji KOBAYASHI ,  Takayoshi ASAKURA

IPC: H04L29/06

Abstract: Disclosed are an information selection device and the like that make it possible to rapidly acquire information about an event of interest. An information selection device is configured to specify target log information among log information. The log information represents that a process is executed for a processing object in a target system and the target log information represents a processing object that may affect an abnormal process executed in the target system. The information selection device is configured to calculate a frequency of the target log information for each combination of the process with the processing object, calculate an abnormality degree of the target log information based on the calculated frequency and select relevant log information with having the abnormality degree satisfying a condition for determining abnormal log information among the target log information.

公开(公告)号：US20170262145A1

公开(公告)日：2017-09-14

申请号：US15509783

申请日：2015-09-07

Applicant: NEC Corporation

Inventor： Kazuhiko ISOYAMA ,  Etsuko ICHIHARA ,  Junpei KAMIMURA ,  Yoshiaki SAKAE ,  Yuji KOBAYASHI ,  Takashi NOMURA ,  Koji KIDA

IPC: G06F3/0482 ,  G06F11/32

CPC classification number: G06F3/0482 ,  G06F11/30 ,  G06F11/32 ,  G06F11/324 ,  G06F21/00

Abstract: Disclosed are a display control device, etc., with which information is displayed according to a display mode having high visibility. Provided is a display control device (101), comprising: a first identification information creation unit (103) with which a plurality of communication bodies which are capable of communication are classified into a plurality of groups, said unit creating first identification information which represents at least a portion of the communication bodies which are included in one of the groups; a second identification information creation unit (104) which creates second identification information which collectively represents a group set which represents two or more groups of the plurality of groups; and a control unit (102) which, on the basis of the size of a region which is displayed in a display means, selects specified identification information from the first identification information or the second identification information, and controls to display, in the display means, device identification information which represents the communication bodies which are not included in the specified identification information and/or the group identification information which represents the groups which are not included in the specified identification information, along with the specified identification information.

公开(公告)号：US20250050442A1

公开(公告)日：2025-02-13

申请号：US18715789

申请日：2021-12-07

Applicant: NEC Corporation

Inventor： Hiroki TAGATO ,  Yoshiaki SAKAE ,  Takashi KONASHI ,  Jun NISHIOKA ,  Yuji KOBAYASHI ,  Jun KODAMA ,  Etsuko ICHIHARA

IPC: B23K9/095 ,  B23K31/12

Abstract: In order to attain an object of providing a technique to, upon detection of an abnormality in a welded part, provide notification of a factor of the detected abnormality, an abnormality diagnosis apparatus includes: an acquisition means (21) for acquiring time series data containing at least one of an electric current value and a voltage value at first welding; an abnormality determination means (22) for determining, with use of an abnormality determination model and based on the time series data acquired by the acquisition means, whether or not there is an abnormality in a welded part at the first welding; and an output means (23) for, if the abnormality determination means has determined that there is an abnormality, outputting the determination result and at least one of a factor of the abnormality and a remedial method for solving the abnormality.

公开(公告)号：US20240168965A1

公开(公告)日：2024-05-23

申请号：US18283942

申请日：2021-04-02

Applicant: NEC Corporation

Inventor： Yoshiaki SAKAE ,  Hiroki TAGATO ,  Takashi KONASHI ,  Jun NISHIOKA ,  Yuji KOBAYASHI ,  Jun KODAMA ,  Etsuko ICHIHARA

IPC: G06F16/248 ,  G06F11/34

CPC classification number: G06F16/248 ,  G06F11/34

Abstract: The present invention reduces the load on a user when performing remote machine diagnosis. An acquisition unit (11) acquires time-series data obtained from equipment of the machine, a prediction unit (12) predicts the state of the machine on the basis of the time-series data, a search unit (13) uses the time-series data as a query to search a knowledge database, storing records of past diagnoses, for knowledge information related to the state of the machine, and a provision unit (14) provides the prediction result and the knowledge information.

公开(公告)号：US20240039640A1

公开(公告)日：2024-02-01

申请号：US18225942

申请日：2023-07-25

Applicant: NEC Corporation

Inventor： Jun KODAMA ,  Yoshiaki SAKAE ,  Yuji KOBAYASHI ,  Etsuko ICHIHARA ,  Jun NISHIOKA ,  Takashi KONASHI ,  Hiroki TAGATO

IPC: H04B10/61 ,  H04B10/556

CPC classification number: H04B10/6165 ,  H04B10/5561

Abstract: At least one processor included in an optical signal state estimation apparatus carries out: an acquisition process for acquiring a constellation of an optical signal; a generation process for generating time series data in which pieces of histogram information are arranged in time series, the histogram information being obtained by counting the number of signal points of the constellation, the signal points being included in each of grids obtained by dividing an in-phase component direction and a quadrature component direction into a specific number of rows and the specific number of columns, respectively; and an estimation process for estimating a state of the optical signal by inputting the time series data to a learned model.

公开(公告)号：US20230421458A1

公开(公告)日：2023-12-28

申请号：US18213753

申请日：2023-06-23

Applicant: NEC Corporation

Inventor： Yoshiaki SAKAE ,  Hiroki TAGATO ,  Takashi KONASHI ,  Jun NISHIOKA ,  Masanao NATSUMEDA ,  Yuji KOBAYASHI ,  Jun KODAMA ,  Etsuko ICHIHARA

IPC: H04L41/16 ,  H04L41/0631 ,  G06N3/088 ,  G06N3/09

CPC classification number: H04L41/16 ,  H04L41/0631 ,  G06N3/088 ,  G06N3/09

Abstract: To extract data-for-machine-leaning so as to enable accurate detection of an abnormality while reducing normal state patterns in a mobile network. A learning data extracting apparatus includes: an issuing section that issues a network service use request which is to be processed by cooperation of a plurality of communication apparatuses constituting C-plane; an obtaining section that obtains, as pieces of candidate learning data, time series data of information relating to the plurality of communication apparatuses; and an extracting section that extracts, as data-for-machine-leaning, a piece of candidate learning data with which the process in response to the network service use request has been successfully ended, from among the pieces of candidate learning data.

公开(公告)号：US20220035906A1

公开(公告)日：2022-02-03

申请号：US17290458

申请日：2018-11-12

Applicant: NEC Corporation

Inventor： Etsuko ICHIHARA ,  Yoshiaki SAKAE ,  Kazuhiko ISOYAMA ,  Jun NISHIOKA

IPC: G06F21/54 ,  G06F21/44 ,  G06F21/31

Abstract: An information processing apparatus (2000) acquires an event graph (10) to be output. In the event graph (10), an activity content in an event related to an activity of a program is represented as an edge, and each of a subject and an object of the event is represented as a node. By using score information, the information processing apparatus (2000) determines a subgraph that matches an event graph (10) having a score equal to or higher than a threshold value from the event graphs (10) to be output. The score information associates each of a plurality of event graphs (10) with a score based on the number of occurrences of an event sequence represented by the event graph (10). The information processing apparatus (2000) outputs the event graph (10) to be output in a mode in which the determined subgraph and the other portion can be discriminated from each other.

公开(公告)号：US20210042412A1

公开(公告)日：2021-02-11

申请号：US16976311

申请日：2018-03-01

Applicant: NEC CORPORATION

Inventor： Kazuhiko ISOYAMA ,  Yoshiaki SAKAE ,  Jun NISHIOKA ,  Etsuko ICHIHARA ,  Kosuke YOSHIDA

IPC: G06F21/56 ,  G06N20/20

Abstract: An information processing apparatus (2000) classifies each event that occurred in a target apparatus to be determined (10) either as an event (event of a first class) that also occurs in a standard apparatus (20) or as an event (event of a second class) that does not occur in the standard apparatus (20). Herein, a first model used for a determination with respect to an event that also occurs in the standard apparatus (20) and a second model used for a determination with respect to an event that does not occur in the standard apparatus (20) are used as models for determining whether an event that occurs in a target apparatus to be determined (10) is a target for warning. The information processing apparatus (2000) performs learning of the first model using an event of the first class. Further, the information processing apparatus (2000) performs learning of the second model using an event of the second class.

公开(公告)号：US20180276064A1

公开(公告)日：2018-09-27

申请号：US15781527

申请日：2016-12-06

Applicant: NEC Corporation

Inventor： Kazuhiko ISOYAMA ,  Koji KIDA ,  Hiroki TAGATO ,  Yoshiaki SAKAE ,  Junpei KAMIMURA ,  Yuji KOBAYASHI ,  Etsuko ICHIHARA

IPC: G06F11/07

Abstract: The diagnosis device specifies a progression degree relating to a first information processing device for output information output by a first detection device at a first timing with respect to the first information processing device, based on device information indicates a progression degree that represents a degree to which the information processing device is abnormal with respect to the information processing device, determines whether or not information in which a first detection device identifier of the first detection device and the specified progression degree are associated with each other is included in progression-degree information in which a detection device identifier capable of identifying a detection device and the progression degree are associated with each other; and calculates the progression degree relating to the first information processing device according to the specified progression degree when the information is determined to be included in the progression-degree information.

公开(公告)号：US20170255305A1

公开(公告)日：2017-09-07

申请号：US15508546

申请日：2015-09-07

Applicant: NEC Corporation

Inventor： Kazuhiko ISOYAMA ,  Etsuko ICHIHARA ,  Junpei KAMIMURA ,  Yoshiaki SAKAE ,  Yuji KOBAYASHI ,  Takashi NOMURA ,  Koji KIDA

IPC: G06F3/048 ,  G06F13/10 ,  G06F11/32

Abstract: Disclosed are a display device, etc. which display information in a display format that provides high visibility. The display device 201 comprises a display unit 202 which displays first nodes, each representing a different communication entity with communication capabilities, or second nodes, each representing a different group of a plurality of communication entities, around a first region, and which shows communications being carried out between first and second nodes, between a plurality of first nodes, or between a plurality of second nodes, in a display format in which the connections between these communicating nodes are indicated within the first region.