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    TRANSPARENT SOFTWARE-DEFINED NETWORK MANAGEMENT
    91.
    发明申请
    TRANSPARENT SOFTWARE-DEFINED NETWORK MANAGEMENT 有权
    透明软体定义网络管理

    公开(公告)号：US20150052243A1

    公开(公告)日：2015-02-19

    申请号：US14456094

    申请日：2014-08-11

    Applicant: NEC Laboratories America, Inc.

    Inventor： Cristian Lumezanu ,  Kyriakos Zanfis ,  Guofei Jiang

    IPC: H04L12/26

    CPC classification number: H04L43/04 ,  H04L41/046 ,  H04L41/147 ,  H04L43/026

    Abstract: Systems and methods for network management, including adaptively installing one or more monitoring rules in one or more network devices on a network using an intelligent network middleware, detecting application traffic on the network transparently using an application demand monitor, and predicting future network demands of the network by analyzing historical and current demands. The one or more monitoring rules are updated once counters are collected; and network paths are determined and optimized to meet network demands and maximize utilization and application performance with minimal congestion on the network.

    Abstract translation: 网络管理系统和方法，包括使用智能网络中间件在网络上的一个或多个网络设备中自适应地安装一个或多个监控规则，使用应用需求监控器透明地检测网络上的应用流量，以及预测未来网络需求 分析历史和当前需求的网络。 收集计数器后，更新一个或多个监控规则; 并确定和优化网络路径以满足网络需求并最大程度地利用和应用性能，同时网络拥塞最小。

    Network debugging
    92.
    发明授权
    Network debugging 有权
    网络调试

    公开(公告)号：US08924787B2

    公开(公告)日：2014-12-30

    申请号：US13736158

    申请日：2013-01-08

    Applicant: NEC Laboratories America, Inc.

    Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ahsan Arefin

    IPC: G06F11/00 ,  G06F11/34 ,  G06F11/30 ,  G06F11/07

    CPC classification number: G06F11/3476 ,  G06F11/0793 ,  G06F11/3006 ,  G06F11/3017 ,  G06F11/302 ,  G06F11/3055 ,  H04L41/142 ,  H04L41/145 ,  H04L43/04

    Abstract: A debugging system used for a data center in a network is disclosed. The system includes a monitoring engine to monitor network traffic by collecting traffic information from a network controller, a modeling engine to model an application signature, an infrastructure signature, and a task signature using a monitored log, a debugging engine to detect a change in the application signature between a working status and a non-working status using a reference log and a problem log, and to validate the change using the task signature, and a providing unit to provide toubleshooting information, wherein an unknown change in the application signature is correlated to a known problem class by considering a dependency to a change in the infrastructure signature. Other methods and systems also are disclosed.

    Abstract translation: 公开了一种用于网络中的数据中心的调试系统。 该系统包括监视引擎，通过从网络控制器收集交通信息，建模引擎来模拟应用签名，基础设施签名和使用监控日志的任务签名来监视网络流量;调试引擎，用于检测网络流量的变化 使用参考日志和问题日志在工作状态和非工作状态之间的应用签名，以及使用所述任务签名来验证所述改变;以及提供单元，用于提供故障排除信息，其中所述应用签名中的未知变化被相关 通过考虑对基础设施签名的改变的依赖性来解决已知的问题类。 还公开了其它方法和系统。

    Method for scalable analysis of android applications for security vulnerability
    93.
    发明授权
    Method for scalable analysis of android applications for security vulnerability 有权
    Android应用程序可扩展分析方法的安全漏洞的方法

    公开(公告)号：US08875298B2

    公开(公告)日：2014-10-28

    申请号：US13768439

    申请日：2013-02-15

    Applicant: NEC Laboratories America, Inc.

    Inventor： Zhichun Li ,  Long Lu ,  Zhenyu Wu ,  Guofei Jiang

    IPC: G06F21/57 ,  G06F11/36 ,  G06F21/56

    CPC classification number: G06F21/577 ,  G06F11/3604 ,  G06F21/562 ,  G06F2221/033

    Abstract: A method for scalable analysis of Android applications for security includes applying Android application analytics to an Android application, which in turn includes applying an application taint tracking to the Android application and applying application repacking detection to the Android application, and determining security vulnerabilities in the Android application responsive to the analytics.

    Abstract translation: Android应用程序的可扩展分析方法包括将Android应用程序分析应用于Android应用程序，Android应用程序分析应用程序将应用程序污染跟踪应用于Android应用程序，并将应用程序重新包装检测应用于Android应用程序，并确定Android中的安全漏洞 响应分析的应用程序。

    Network Self-Protection
    94.
    发明申请
    Network Self-Protection 有权
    网络自我保护

    公开(公告)号：US20130176852A1

    公开(公告)日：2013-07-11

    申请号：US13736146

    申请日：2013-01-08

    Applicant: NEC LABORATORIES AMERICA, INC.

    Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ye Wang

    IPC: H04L12/56

    CPC classification number: H04L47/12 ,  H04L43/026 ,  H04L43/16 ,  H04L47/2441 ,  H04L47/41 ,  H04L63/1425 ,  Y02D50/30

    Abstract: A device used in a network is disclosed. The device includes a network monitor to monitor a network state and to collect statistics for flows going through the network, a flow aggregation unit to aggregate flows into clusters and identify flows that can cause a network problem, and an adaptive control unit to adaptively regulate the identified flow according to network feedback. Other methods and systems also are disclosed.

    Abstract translation: 公开了一种在网络中使用的设备。 该设备包括网络监视器，用于监控网络状态并收集通过网络的流量的统计信息;流量聚合单元，用于将流聚集成群集，识别可能导致网络问题的流;以及自适应控制单元， 根据网络反馈确定流量。 还公开了其它方法和系统。

    Structure-level anomaly detection for unstructured logs
    97.
    发明授权
    Structure-level anomaly detection for unstructured logs 有权

    公开(公告)号：US10740170B2

    公开(公告)日：2020-08-11

    申请号：US15830579

    申请日：2017-12-04

    Applicant: NEC Laboratories America, Inc.

    Inventor： Biplob Debnath ,  Hui Zhang ,  Guofei Jiang

    IPC: G06F11/07 ,  G06F11/30 ,  G06F11/34 ,  G06F16/22 ,  G06F16/28 ,  G06F40/205

    Abstract: A computer-implemented method, computer program product, and computer processing system are provided. The method includes preprocessing, by a processor, a set of heterogeneous logs by splitting each of the logs into tokens to obtain preprocessed logs. Each of the logs in the set is associated with a timestamp and textual content in one or more fields. The method further includes generating, by the processor, a set of regular expressions from the preprocessed logs. The method also includes performing, by the processor, an unsupervised parsing operation by applying the regular expressions to the preprocessed logs to obtain a set of parsed logs and a set of unparsed logs, if any. The method additionally includes storing, by the processor, the set of parsed logs in a log analytics database and the set of unparsed logs in a debugging database.

    Periodicity analysis on heterogeneous logs
    98.
    发明授权
    Periodicity analysis on heterogeneous logs 有权

    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

    IPC: G06N3/08 ,  H04L12/26 ,  G06N5/04 ,  G06N20/00

    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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