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11.发明申请公开(公告)号：US20160179600A1
公开(公告)日：2016-06-23
申请号：US14957566
申请日：2015-12-02
Applicant: NEC Laboratories America, Inc.
Inventor： Pallavi Joshi , Hui Zhang , Jianwu Xu , Xiao Yu , Guofei Jiang
IPC: G06F11/07
CPC classification number: G06F11/0751 , G06F11/0715 , G06F11/3006 , G06F11/3414 , G06F11/3447 , G06F11/3476 , H04L41/00 , H04L41/142 , H04L41/16
Abstract: Systems and methods are disclosed for detecting error in a cloud infrastructure by running a plurality of training tasks on the cloud infrastructure and generating training execution logs; generating a model miner with the training execution logs to represent one or more correct task executions in the cloud infrastructure; after training, running a plurality of tasks on the cloud infrastructure and capturing live execution logs; and from the live execution logs, if a current task deviates from the correct task execution, indicating an execution error for correction in real-time.
Abstract translation: 公开了用于通过在云基础设施上运行多个训练任务并生成训练执行日志来检测云基础架构中的错误的系统和方法; 生成具有训练执行日志的模型矿工，以表示云基础架构中的一个或多个正确的任务执行; 培训后，在云基础架构上运行多个任务并捕获实时执行日志; 如果当前任务偏离正确的任务执行，则表示实时执行错误。
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公开(公告)号：US11194692B2
公开(公告)日：2021-12-07
申请号：US16037354
申请日：2018-07-17
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Hui Zhang , Haifeng Chen , Bin Nie
IPC: G06F11/34 , G06F11/00 , G06K9/62 , G06F16/35 , G06F17/18 , G06N3/04 , G06N20/00 , G06F16/31 , G06N5/04
Abstract: Methods and systems for system maintenance include identifying patterns in heterogeneous logs. Predictive features are extracted from a set of input logs based on the identified patterns. It is determined that the predictive features indicate a future system failure using a first model. A second model is trained, based on a target sample from the predictive features and based on weights associated with a distance between the target sample and a set of samples from the predictive features, to identify one or more parameters of the second model associated with the future system failure. A system maintenance action is performed in accordance with the identified one or more parameters.
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公开(公告)号：US10929765B2
公开(公告)日：2021-02-23
申请号：US15678751
申请日：2017-08-16
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Hui Zhang , Jianwu Xu , Nipun Arora , Guofei Jiang , Bo Zong
Abstract: A computer-implemented method for automatically analyzing log contents received via a network and detecting content-level anomalies is presented. The computer-implemented method includes building a statistical model based on contents of a set of training logs and detecting, based on the set of training logs, content-level anomalies for a set of testing logs. The method further includes maintaining an index and metadata, generating attributes for fields, editing model capability to incorporate user domain knowledge, detecting anomalies using field attributes, and improving anomaly quality by using user feedback.
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公开(公告)号：US10909115B2
公开(公告)日：2021-02-02
申请号：US16203008
申请日：2018-11-28
Applicant: NEC Laboratories America, Inc.
Inventor： Bo Zong , Jianwu Xu , Haifeng Chen
IPC: G06F7/00 , G06F16/2453 , G06F16/2458 , G06F16/2455 , G06F16/9038 , G06F16/17 , G06F16/14 , G06F11/08 , G06K9/62
Abstract: Systems and methods for system event searching based on heterogeneous logs are provided. A system can include a processor device operatively coupled to a memory device wherein the processor device is configured to mine a variety of log patterns from various of heterogeneous logs to obtain known-event log patterns and unknown-event log patterns, as well as to build a weighted vector representation of the log patterns. The processor device is also configured to evaluate a similarity between the vector representation of the unknown-event and known-event log patterns, identify a known event that is most similar to an unknown event to troubleshoot system faults based on past actions for similar events to improve an operation of a computer system.
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公开(公告)号：US10679135B2
公开(公告)日：2020-06-09
申请号：US15340255
申请日：2016-11-01
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Haifeng Chen , Jianwu Xu , Kenji Yoshihira , Guofei Jiang
Abstract: Systems and methods are disclosed for detecting periodic event behaviors from machine generated logging by: capturing heterogeneous log messages, each log message including a time stamp and text content with one or more fields; recognizing log formats from log messages; transforming the text content into a set of time series data, one time series for each log format; during a training phase, analyzing the set of time series data and building a category model for each periodic event type in heterogeneous logs; and during live operation, applying the category model to a stream of time series data from live heterogeneous log messages and generating a flag on a time series data point violating the category model and generating an alarm report for the corresponding log message.
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Patent Agency Ranking
公开(公告)号：US20190179691A1
公开(公告)日：2019-06-13
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：US20190171622A1
公开(公告)日：2019-06-06
申请号：US16203008
申请日：2018-11-28
Applicant: NEC Laboratories America, Inc.
Inventor： Bo Zong , Jianwu Xu , Haifeng Chen
IPC: G06F16/17 , G06K9/62 , G06F11/08 , G06F16/9038 , G06F16/14
Abstract: Systems and methods for system event searching based on heterogeneous logs are provided. A system can include a processor device operatively coupled to a memory device wherein the processor device is configured to mine a variety of log patterns from various of heterogeneous logs to obtain known-event log patterns and unknown-event log patterns, as well as to build a weighted vector representation of the log patterns. The processor device is also configured to evaluate a similarity between the vector representation of the unknown-event and known-event log patterns, identify a known event that is most similar to an unknown event to troubleshoot system faults based on past actions for similar events to improve an operation of a computer system.
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公开(公告)号：US10296844B2
公开(公告)日：2019-05-21
申请号：US14846093
申请日：2015-09-04
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Jianwu Xu , Guofei Jiang , Kenji Yoshihira , Pallavi Joshi
Abstract: A method and system are provided. The method includes performing, by a logs-to-time-series converter, a logs-to-time-series conversion by transforming a plurality of heterogeneous logs into a set of time series. Each of the heterogeneous logs includes a time stamp and text portion with one or more fields. The method further includes performing, by a time-series-to-sequential-pattern converter, a time-series-to-sequential-pattern conversion by mining invariant relationships between the set of time series, and discovering sequential message patterns and association rules in the plurality of heterogeneous logs using the invariant relationships. The method also includes executing, by a processor, a set of log management applications, based on the sequential message patterns and the association rules.
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公开(公告)号：US10289509B2
公开(公告)日：2019-05-14
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
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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公开(公告)号：US20190095313A1
公开(公告)日：2019-03-28
申请号：US16037354
申请日：2018-07-17
Applicant: NEC Laboratories America, Inc.
Inventor： Jianwu Xu , Hui Zhang , Haifeng Chen , Bin Nie
Abstract: Methods and systems for system maintenance include identifying patterns in heterogeneous logs. Predictive features are extracted from a set of input logs based on the identified patterns. It is determined that the predictive features indicate a future system failure using a first model. A second model is trained, based on a target sample from the predictive features and based on weights associated with a distance between the target sample and a set of samples from the predictive features, to identify one or more parameters of the second model associated with the future system failure. A system maintenance action is performed in accordance with the identified one or more parameters.
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