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公开(公告)号：US11297142B2
公开(公告)日：2022-04-05
申请号：US16776883
申请日：2020-01-30
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Haifeng Chen , Bin Nie
Abstract: Systems and methods for evaluating another computer system using temporal discrete event analytics are provided. The method includes generating sentences of discrete event sequences for multiple sensors. The method also includes building a sensor relationship network in response to generating the sentences of discrete event sequences. The sensor relationship network is analyzed to determine relationships between the multiple sensors. The method further includes performing fault diagnosis based on the sensor relationship network and the relationships between the multiple sensors.
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公开(公告)号：US11294754B2
公开(公告)日：2022-04-05
申请号：US16200950
申请日：2018-11-27
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Hui Zhang , Haifeng Chen , Tanay Kumar Saha
Abstract: Systems and methods for contextual event sequence analysis of system failure that analyzes heterogeneous system event record logs are disclosed. The disclosure relates to analyzing event sequences for system failure in ICT and other computerized systems and determining their causes and propagation chains.
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公开(公告)号：US20210089992A1
公开(公告)日：2021-03-25
申请号：US17016709
申请日：2020-09-10
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Ding Li , Wei Cheng , Haifeng Chen
Abstract: A method for automatically recommending a reviewer for submitted codes is presented. The method includes employing, in a learning phase, an artificial intelligence agent for learning an underlying and contextual structure of code regions, mapping the code regions into a distributed representation to define code region representations, employing, in a recommendation phase, the artificial intelligence agent to produce a ranked list of recommended reviewers for any given submitted code review request, and outputting the ranked list of recommended reviewers to a visualization device.
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公开(公告)号：US10795753B2
公开(公告)日：2020-10-06
申请号：US16207851
申请日：2018-12-03
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Hui Zhang , Haifeng Chen , Tanay Kumar Saha , Pranay Anchuri
Abstract: Methods and systems for system failure diagnosis and correction include extracting syntactic patterns from a plurality of logs with heterogeneous formats. The syntactic patterns are clustered according to categories of system failure. A single semantically unique pattern is extracted for each category of system failure. The semantically unique patterns are matched to recent log information to detect a corresponding system failure. A corrective action us performed responsive to the detected system failure.
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公开(公告)号：US20200252461A1
公开(公告)日：2020-08-06
申请号：US16776883
申请日：2020-01-30
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Haifeng Chen , Bin Nie
Abstract: Systems and methods for evaluating another computer system using temporal discrete event analytics are provided. The method includes generating sentences of discrete event sequences for multiple sensors. The method also includes building a sensor relationship network in response to generating the sentences of discrete event sequences. The sensor relationship network is analyzed to determine relationships between the multiple sensors. The method further includes performing fault diagnosis based on the sensor relationship network and the relationships between the multiple sensors.
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Patent Agency Ranking
公开(公告)号：US10567409B2
公开(公告)日：2020-02-18
申请号：US15889733
申请日：2018-02-06
Applicant: NEC Laboratories America, Inc.
Abstract: A method for implementing automatic and scalable log pattern learning in security log analysis is provided. The method includes collecting security logs generated by a computer system. An incremental learning process is implemented to generate a set of log patterns from the collected security logs. The collected security logs are parsed using the set of log patterns.
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公开(公告)号：US20190354422A1
公开(公告)日：2019-11-21
申请号：US16400402
申请日：2019-05-01
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Haifeng Chen
IPC: G06F11/07 , G06F16/2457 , G06F16/248
Abstract: A method for diagnosing computer system faults using log retrieval based on joint semantic and syntactic similarities includes receiving a set of query logs, defining joint semantic and syntactic similarities between the set of query logs and respective ones of multiple sets of historical logs based on semantic content and syntactic information obtained for the set of query logs and the multiple sets of historical logs, the multiple sets of historical logs being associated with historical computer system fault diagnoses, retrieving a set of historical logs from the multiple sets of historical logs to obtain a retrieved set of historical logs for computer system fault comparison based on a similarity measure corresponding to each of the multiple sets of historical logs derived from the joint semantic and syntactic similarities, and transmitting the retrieved set of historical logs to one or more computing devices to perform the computer system fault comparison.
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公开(公告)号：US10296430B2
公开(公告)日：2019-05-21
申请号：US15478753
申请日：2017-04-04
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Ke Zhang , Hui Zhang , Renqiang Min , Guofei Jiang
Abstract: Mobile phones and methods for mobile phone failure prediction include receiving respective log files from one or more mobile phone components, including at least one user application. The log files have heterogeneous formats. A likelihood of failure of one or more mobile phone components is determined based on the received log files by clustering the plurality of log files according to structural log patterns and determining feature representations of the log files based on the log clusters. A user is alerted to a potential failure if the likelihood of component failure exceeds a first threshold. An automatic system control action is performed if the likelihood of component failure exceeds a second threshold.
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公开(公告)号：US20180060314A1
公开(公告)日：2018-03-01
申请号：US15659131
申请日：2017-07-25
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Biplob Debnath , Hui Zhang , Guofei Jiang
IPC: G06F17/30
CPC classification number: G06F16/1794 , G06F16/258
Abstract: Methods and systems for log management include pre-processing heterogeneous logs and performing a log management action on the pre-processed plurality of heterogeneous logs. Pre-processing the logs includes performing a fixed tokenization of the heterogeneous logs based on a predefined set of symbols, performing a flexible tokenization of the heterogeneous logs based on a user-defined set of rules, converting timestamps in the heterogeneous logs to a single target timestamp format, and performing structural log tokenization of the heterogeneous logs based on user-defined structural information.
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公开(公告)号：US20170293542A1
公开(公告)日：2017-10-12
申请号：US15478714
申请日：2017-04-04
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Ke Zhang , Hui Zhang , Renqiang Min , Guofei Jiang
CPC classification number: G06F11/2263 , G06N3/0445 , G06N5/04 , G06N99/005
Abstract: Methods for system failure prediction include clustering log files according to structural log patterns. Feature representations of the log files are determined based on the log clusters. A likelihood of a system failure is determined based on the feature representations using a neural network. An automatic system control action is performed if the likelihood of system failure exceeds a threshold.
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