公开(公告)号：US20220035914A1

公开(公告)日：2022-02-03

申请号：US17278767

申请日：2018-09-26

Applicant: NEC Corporation

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

IPC: G06F21/56

Abstract: An information processing apparatus (2000) compares a name of a determination target file with a name of one or more normal files. The information processing apparatus (2000) outputs information related to the determination target file, when a name of the determination target file does not coincide with a name of any of the normal files, and a degree of reliability of the determination target file is equal to or less than a threshold value. A degree of reliability of the determination target file is calculated, based on a degree of similarity between a name of the determination target file and a name of each of the normal files.

公开(公告)号：US20220019660A1

公开(公告)日：2022-01-20

申请号：US17294167

申请日：2018-11-16

Applicant: NEC Corporation

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

IPC: G06F21/55 ,  G06F16/901

Abstract: An information processing apparatus (2000) acquires an event graph (10) to be output and determines a subgraph satisfying a predetermined reference from the acquired 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 (14), and each of a subject and an object of the event is represented as a node (12). The information processing apparatus (2000) outputs the event graph (10) with an output mode of the determined subgraph as a first mode and with an output mode of another portion as a mode other than the first mode. The first mode is a mode in which at least one of the number of nodes (12) and the number of edges (14) is reduced than the number included in the determined graph.

公开(公告)号：US20220012345A1

公开(公告)日：2022-01-13

申请号：US17431508

申请日：2019-02-20

Applicant: NEC Corporation

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

IPC: G06F21/57 ,  G06F21/55

Abstract: A history output apparatus (2000) acquires an abnormal event history (10) being information representing an abnormal event occurring in a target system (100), and determines a kind of the abnormal event represented by the abnormal event history (10). When a kind of the determined abnormal event is a first kind, the history output apparatus (2000) determines a terminal (110) in which the abnormal event occurs, as an output target terminal. Further, the history output apparatus (2000) also determines another terminal (110) performing communication with the terminal (110) in which the abnormal event occurs at or before a point when the abnormal event occurs, as an output target terminal. When the abnormal event represented by the acquired abnormal event history (10) is an abnormal event occurring in the output target terminal, the history output apparatus (2000) outputs information relating to the abnormal event.

公开(公告)号：US20180048531A1

公开(公告)日：2018-02-15

申请号：US15556113

申请日：2016-03-09

Applicant: NEC CORPORATION

Inventor： Jun NISHIOKA

IPC: H04L12/24

CPC classification number: H04L41/142 ,  H04L41/00 ,  H04L41/12 ,  H04L43/0876 ,  H04L45/02 ,  H04L49/25

Abstract: To reduce a load caused to acquire a traffic volume, and contribute to grasp of a precise traffic volume, the disclosed management apparatus is provided with: a topology information acquisition unit that acquires topology information regarding a group of links having, among a first group of switches included in a network, a switch included in the first group of switches at an end point; a switch selection unit that selects one or more switches to be monitored, which are a set of switches including either of the end points of each link constituting the group of links; and a statistical information acquisition unit that acquires statistical information from the switches being monitored.

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：US20240385943A1

公开(公告)日：2024-11-21

申请号：US18694032

申请日：2021-10-29

Applicant: NEC Corporation

Inventor： Jun NISHIOKA ,  Yoshiaki Sakae

IPC: G06F11/36 ,  G06F9/445

Abstract: A model analysis device according to the present disclosure is provided with: a target information acquisition means that acquires equipment configuration information including hardware configuration information and software configuration information, which consists of firmware configuration information and protocol processing software configuration information, about a verification target; a model information acquisition means that acquires configuration information from which a trained model used to verify the verification target has been generated; a suitability evaluation means that evaluates the suitability of the verification target for the trained model on the basis of the acquired configuration information about the verification target and the trained model; and an output means that outputs the evaluation result.

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：US20220374528A1

公开(公告)日：2022-11-24

申请号：US17767127

申请日：2019-10-25

Applicant: NEC Corporation

Inventor： Kazuhiko ISOYAMA ,  Yoshiaki SAKAE ,  Jun NISHIOKA ,  Yuji KOBAYASHI

IPC: G06F21/57

Abstract: In order to provide an evaluation apparatus that appropriately evaluates a risk from continuous execution of an application without stopping execution of the application, an evaluation apparatus includes a first obtaining section, an evaluating section, and an output section. The first obtaining section is configured to obtain application information related to an application being executed on a server. The evaluating section is configured to evaluate a risk degree from continuous execution of the application on the server, based on the application information. The output section is configured to output an evaluation result of the risk degree.