公开(公告)号：US20150106794A1

公开(公告)日：2015-04-16

申请号：US14512653

申请日：2014-10-13

Applicant: NEC Laboratories America, Inc.

Inventor： Junghwan Rhee ,  Hui Zhang ,  Nipun Arora ,  Guofei Jiang ,  Chung Hwan Kim

IPC: G06F11/36 ,  G06F9/44

CPC classification number: G06F11/3636 ,  G06F11/3419

Abstract: Methods and systems for performance inference include inferring an internal application status based on a unified call stack trace that includes both user and kernel information by inferring user function instances. A calling context encoding is generated that includes information regarding function calling paths. Application performance is analyzed based on the encoded calling contexts. The analysis includes performing a top-down latency breakdown and ranking calling contexts according to how costly each function calling path is.

Abstract translation: 用于性能推理的方法和系统包括通过推断用户功能实例来推断基于包括用户和内核信息的统一调用堆栈跟踪的内部应用程序状态。 生成包含有关函数调用路径的信息的调用上下文编码。 基于编码的呼叫上下文来分析应用性能。 分析包括根据每个功能调用路径的代价昂贵地执行自上而下的延迟故障和排序呼叫上下文。

公开(公告)号：US20150104186A1

公开(公告)日：2015-04-16

申请号：US14514952

申请日：2014-10-15

Applicant: NEC Laboratories America, Inc.

Inventor： Shaoliang Zhang ,  Fatih Yaman

IPC: H04L27/34 ,  H04B10/40 ,  H04L25/03 ,  H04L27/36

CPC classification number: H04B10/40 ,  H03M13/256 ,  H04B10/541 ,  H04B10/612 ,  H04L1/0041 ,  H04L1/006 ,  H04L25/03834 ,  H04L27/0008 ,  H04L27/2628 ,  H04L27/34 ,  H04L27/362

Abstract: A method of transmitting a data signal is provided that includes integrating a trellis encoder/decoder into a transmitter for 16 quadrative amplitude modulation (QAM) to provide a first and second mode of modulation, wherein each mode has a same baud rate. Data is transmitted from the transmitter at the first mode of modulation with a plurality of first subcarriers with DP16QAM modulation to provide a substantially 400 G data transmission rate, or data is transmitted from the transmitter at the second mode of modulation with a plurality of second subcarriers with trellis coded modulation to provide a substantially 1 T data transmission rate.

Abstract translation: 提供了一种发送数据信号的方法，其包括将网格编码器/解码器集成到用于16次方振幅调制（QAM）的发射机中以提供第一和第二调制方式，其中每个模式具有相同的波特率。 在具有DP16QAM调制的多个第一子载波的第一调制模式下，从发射机发送数据，以提供基本上400G的数据传输速率，或者以第二调制方式从多个第二子载波 具有网格编码调制以提供基本上1T的数据传输速率。

公开(公告)号：US20150104166A1

公开(公告)日：2015-04-16

申请号：US14510163

申请日：2014-10-09

Applicant: NEC Laboratories America, Inc.

Inventor： Ankitkumar Patel ,  Philip Nan Ji

IPC: H04Q11/00 ,  H04L12/707 ,  H04J14/02

CPC classification number: H04Q11/0066 ,  H04J14/0257 ,  H04J14/0271 ,  H04J14/0289 ,  H04J14/0295 ,  H04J14/0297 ,  H04L45/128 ,  H04L45/22 ,  H04L45/62 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0086

Abstract: We propose an efficient procedure, namely disjoint pair procedure based cloud service embedding procedure that first maps working and backup virtual nodes over physical nodes while balancing computational resources of different types, and finally, maps working and backup virtual links over physical routes while balancing network spectral resources using the disjoint pair procedure.

Abstract translation: 我们提出了一种有效的过程，即基于不相交过程的云服务嵌入过程，首先在物理节点上映射工作和备份虚拟节点，同时平衡不同类型的计算资源，最后通过物理路由映射工作和备份虚拟链路，同时平衡网络光谱 资源使用不相交对的程序。

公开(公告)号：US20150094959A1

公开(公告)日：2015-04-02

申请号：US14503549

申请日：2014-10-01

Applicant: NEC Laboratories America, Inc.

Inventor： Xia Ning ,  Guofei Jiang ,  Haifeng Chen ,  Kenji Yoshihira

IPC: G01V99/00

CPC classification number: G01V99/005

Abstract: A method and system are provided for heterogeneous log analysis. The method includes performing hierarchical log clustering on heterogeneous logs to generate a log cluster hierarchy for the heterogeneous logs. The method further includes performing, by a log pattern recognizer device having a processor, log pattern recognition on the log cluster hierarchy to generate log pattern representations. The method also includes performing log field analysis on the log pattern representations to generate log field statistics. The method additionally includes performing log indexing on the log pattern representations to generate log indexes.

Abstract translation: 提供了一种用于异构对数分析的方法和系统。 该方法包括在异构日志上执行分层日志聚类，以生成异类日志的日志群集层次结构。 该方法还包括通过具有处理器的日志模式识别器装置执行日志簇层级上的日志模式识别以产生日志模式表示。 该方法还包括对日志模式表示执行日志字段分析以生成日志字段统计。 该方法还包括对日志模式表示执行日志索引以生成日志索引。

公开(公告)号：US20150093111A1

公开(公告)日：2015-04-02

申请号：US14504639

申请日：2014-10-02

Applicant: NEC Laboratories America, Inc.

Inventor： Ting Wang ,  Ryuji Aida ,  Philip Ji

IPC: H04Q11/00 ,  H04B10/80

CPC classification number: H04Q11/0005 ,  H04B10/80 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q11/0062 ,  H04Q2011/0037

Abstract: Systems and methods for method for data transport using secure reconfigurable branching units, including receiving signals from a first trunk terminal and a second trunk terminal by branching units. Broadcasting is prevented for secure information delivery by dividing, within the branching units, the signals from the first trunk terminal and the second trunk terminal into three or more sections. Signals may be received from a branch terminal by one or more branching units using a single branch fiber pair, and the signals from the branch terminals may be divided into three or more groups of optical channels, wherein at least e of the channels includes dummy light. The divided signals from the first trunk terminal, the second trunk terminal, and dummy light from the branch terminal may be merged, and the merged signal sent to the branch terminal.

Abstract translation: 使用安全可重配置分支单元的数据传输方法的系统和方法，包括通过分支单元从第一中继线端子和第二干线端子接收信号。 通过在分支单元内将来自第一干线端子和第二干线端子的信号分成三个或更多个部分来防止广播，从而进行安全的信息传递。 可以通过使用单个分支光纤对的一个或多个分支单元从分支终端接收信号，并且来自分支终端的信号可以被划分为三组或更多组光信道，其中至少e个信道包括伪光 。 来自第一中继线端子，第二干线端子和来自分支端子的虚拟光的分频信号可以被合并，并且合并信号被发送到分支终端。

公开(公告)号：US20150092558A1

公开(公告)日：2015-04-02

申请号：US14499219

申请日：2014-09-28

Applicant: NEC Laboratories America, Inc.

Inventor： Narayan Prasad ,  Mustafa Arslan ,  Sampath Rangarajan

IPC: H04W28/08 ,  H04W36/04

CPC classification number: H04W28/08 ,  H04W84/045

Abstract: At a coarse time-scale, at the start of each frame the choice of TPs to be made active and users to associate with the active TPs are determined by solving an optimization problem. The inputs to the optimization problem are averaged slowly varying metrics that are relevant for a period longer than the backhaul latency. At a the fine time-scale, in each slot each active TP independently does scheduling over the set of users associated with it, without any coordination with any of the other active TPs, based on fast changing information, such as instantaneous rate or SINR estimates.

Abstract translation: 在粗略的时间尺度上，在每个帧的开始，通过求解优化问题来确定要激活的TP的选择和用户与活动的TP相关联。 对优化问题的输入是平均缓慢变化的度量，其与回程延迟时间长度相关。 在精细的时间尺度上，在每个时隙中，每个活动TP独立地对与其相关联的用户集合进行调度，而不需要基于快速变化的信息（例如瞬时速率或SINR估计）与任何其他活动TP的任何协调 。

公开(公告)号：US20150071636A1

公开(公告)日：2015-03-12

申请号：US14479398

申请日：2014-09-08

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Konstantinos Kanonakis ,  Ting Wang ,  Philip Ji

IPC: H04L12/825 ,  H04B10/40 ,  H04Q11/00 ,  H04L12/815

CPC classification number: H04L47/25 ,  H04B10/40 ,  H04L47/225 ,  H04Q11/0062 ,  H04Q2011/0086

Abstract: Methods and systems for variable rate control include determining a new communications rate in response to measured data traffic patterns. A receive change message is transmitted to a receiver that triggers the receiver to wait for an end of transmission (EoT) message and to set a new communications rate. A transmit change message is transmitted to a transmitter that triggers the transmitter to send the EoT message to the receiver, to set the new communications rate, and to send a start of transmission (SoT) message to the receiver before resuming data communications.

Abstract translation: 用于可变速率控制的方法和系统包括响应于测量的数据业务模式来确定新的通信速率。 接收改变消息被发送到触发接收机等待传输结束（EoT）消息并设置新的通信速率的接收机。 发送改变消息被发送到发射机，触发发射机向接收机发送EoT消息，设置新的通信速率，并在恢复数据通信之前向接收机发送开始的发送（SoT）消息。

公开(公告)号：US08977579B2

公开(公告)日：2015-03-10

申请号：US13649823

申请日：2012-10-11

Applicant: NEC Laboratories America, Inc.

Inventor： Yunlong He ,  Yanjun Qi ,  Koray Kavukcuoglu

IPC: G06F15/18 ,  G06N99/00 ,  A61M5/00 ,  A61M25/10 ,  A61M25/00

CPC classification number: G06N99/005 ,  A61M5/007 ,  A61M25/0026 ,  A61M25/10 ,  A61M25/1011 ,  A61M2025/105

Abstract: Disclosed is a general learning framework for computer implementation that induces sparsity on the undirected graphical model imposed on the vector of latent factors. A latent factor model SLFA is disclosed as a matrix factorization problem with a special regularization term that encourages collaborative reconstruction. Advantageously, the model may simultaneously learn the lower-dimensional representation for data and model the pairwise relationships between latent factors explicitly. An on-line learning algorithm is disclosed to make the model amenable to large-scale learning problems. Experimental results on two synthetic data and two real-world data sets demonstrate that pairwise relationships and latent factors learned by the model provide a more structured way of exploring high-dimensional data, and the learned representations achieve the state-of-the-art classification performance.

Abstract translation: 公开了一种用于计算机实现的通用学习框架，其在对潜在因素的向量施加的无向图形模型上引起稀疏性。 潜在因素模型SLFA被公开为具有鼓励协作重建的特殊正则化术语的矩阵分解问题。 有利地，该模型可以同时学习数据的低维表示，并明确地模拟潜在因素之间的成对关系。 公开了一种在线学习算法，使得该模型适合于大规模学习问题。 两个合成数据和两个现实世界数据集的实验结果表明，该模型获得的成对关系和潜在因素提供了一种更结构化的探索高维数据的方法，并且学习的表示实现了最先进的分类 性能。

公开(公告)号：US08976661B2

公开(公告)日：2015-03-10

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: H04L12/26 ,  H04L12/801 ,  H04L12/891

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。

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。