公开(公告)号：EP3215975A1

公开(公告)日：2017-09-13

申请号：EP15858083.7

申请日：2015-11-05

申请人： NEC Laboratories America, Inc.

发明人： LI, Zhichun ,  XIAO, Xusheng ,  WU, Zhenyu ,  ZONG, Bo ,  JIANG, Guofei

IPC分类号： G06F21/50 ,  G06F17/30 ,  G06F17/00

CPC分类号： G06F17/30958 ,  G06F21/552

摘要： A method and system for constructing behavior queries in temporal graphs using discriminative sub-trace mining. The method includes generating system data logs to provide temporal graphs, wherein the temporal graphs include a first temporal graph corresponding to a target behavior and a second temporal graph corresponding to a set of background behaviors, generating temporal graph patterns for each of the first and second temporal graphs to determine whether a pattern exists between a first temporal graph pattern and a second temporal graph pattern, wherein the pattern between the temporal graph patterns is a non-repetitive graph pattern, pruning the pattern between the first and second temporal graph patterns to provide a discriminative temporal graph, and generating behavior queries based on the discriminative temporal graph.

摘要翻译： 一种使用有差别的子轨迹挖掘在时间图中构建行为查询的方法和系统。 该方法包括生成系统数据日志以提供时间图，其中时间图包括对应于目标行为的第一时间图和对应于一组背景行为的第二时间图，针对第一和第二中的每一个生成时间图模式 时间图以确定在第一时间图模式和第二时间图模式之间是否存在模式，其中所述时间图模式之间的模式是非重复图模式，在第一和第二时间图模式之间修剪所述模式以提供 区分性时间图，以及基于区分性时间图生成行为查询。

公开(公告)号：EP3207673A1

公开(公告)日：2017-08-23

申请号：EP15851567.6

申请日：2015-09-04

申请人： NEC Laboratories America, Inc.

发明人： YAMAN, Fatih ,  ZHANG, Shaoliang ,  HUANG, Yue-Kai

IPC分类号： H04L25/03 ,  H04L25/49 ,  H04B10/80

摘要： A system for optimizing signal quality in an optical communication system is provided including a transmitter for converting digital signals to optical signals, the transmitter including a transmitter digital signal processing chip including a pre-distortion logic and a transmitter look-up table (LUT). A receiver is operatively coupled to the transmitter for receiving and converting the optical signals from the transmitter to digital signals. The receiver includes a receiver digital signal processing chip including a correction logic and a receiver look-up table (LUT). The transmitter LUT is constructed by scaling the receiver LUT by a weight factor and is iteratively updated based on a weighted sum of the receiver LUT.

摘要翻译： 提供了一种用于优化光通信系统中的信号质量的系统，该系统包括用于将数字信号转换为光信号的发射器，该发射器包括具有预失真逻辑和发射器查找表（LUT）的发射器数字信号处理芯片。 接收器可操作地耦合到发射器，用于接收并将来自发射器的光信号转换为数字信号。 接收器包括包含校正逻辑和接收器查找表（LUT）的接收器数字信号处理芯片。 发射机LUT通过将接收机LUT缩放一个权重因子并基于接收机LUT的加权和迭代地更新而构建。

公开(公告)号：EP3175562A1

公开(公告)日：2017-06-07

申请号：EP15827398.7

申请日：2015-07-29

申请人： NEC Laboratories America, Inc.

发明人： KHOJASTEPOUR, Mohammad ,  SUNDARESAN, Karthikeyan ,  RANGARAJAN, Sampath

IPC分类号： H04B17/345 ,  H04B17/11 ,  H04B17/21 ,  H04B7/02 ,  H04B7/04

CPC分类号： H04J11/005 ,  H04B7/024

摘要： A method, system, and computer program product for minimizing intra-cell and inter-cell interference in a multi-cell full duplex communication system in a wireless network. The method includes selecting, by a client selector, a plurality of clients, wherein the plurality of clients includes a plurality of uplink clients configured to transmit signals and a plurality of downlink clients configured to receive signals over a plurality of data streams in each cell of the multi-cell full duplex communication system, and performing, by a spatial interference aligner, spatial interference alignment on interfering data streams to align the interfering data streams of uplink clients towards downlink clients in its own cell and downlink clients in a neighboring cell.

摘要翻译： 一种用于最小化无线网络中的多小区全双工通信系统中的小区内和小区间干扰的方法，系统和计算机程序产品。 该方法包括由clint选择器选择多个客户端，其中多个客户端包括被配置为发送信号的多个上行链路客户端以及被配置为通过多个数据流在多个数据流中接收信号的多个下行链路客户端， 多小区全双工通信系统，并且通过空间干扰对准器对干扰数据流执行空间干扰对准，以将上行链路客户端的干扰数据流对准其自己的小区中的下行链路客户端和相邻小区中的下行链路客户端。

公开(公告)号：EP3158701A1

公开(公告)日：2017-04-26

申请号：EP15808947.4

申请日：2015-06-18

申请人： NEC Laboratories America, Inc.

发明人： KHOJASTEPOUR, Mohammad ,  SUNDARESAN, Karthikeyan

IPC分类号： H04L25/08 ,  H04L25/02

CPC分类号： H04B7/0634 ,  H04B7/0456 ,  H04B2215/00 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073 ,  H04L5/143 ,  H04L25/03343 ,  H04L25/03898

摘要： Systems and methods for full-duplex communication in a communications network, including generating a combined channel matrix including two or more channel matrices and determining a null space and a basis for the combined channel matrix. Common, individual, and disjoint vector spaces are determined, and common vector space is determined for each of one or more receiving nodes and each or one or more transmitting nodes, disjoint vector spaces for each of the one or more nodes are determined based on the common vector space for each of the one or more nodes, and individual vector spaces are determined based on the common and the disjoint vector spaces. Signals are mapped at each of the nodes to determine corresponding vector spaces; and interference alignment is performed in common vector spaces and zero forcing in disjoint vector spaces using a hardware processor.

摘要翻译： 包括生成包括两个或更多个信道矩阵并且确定零空间的组合信道矩阵以及组合信道矩阵的基础的用于通信网络中的全双工通信的系统和方法。 确定公共，个体和不相交向量空间，并且为一个或多个接收节点中的每一个确定公共向量空间，并且基于所述一个或多个接收节点确定每个或一个或多个发送节点，所述一个或多个节点中的每一个的不相交向量空间 基于公共和不相交的向量空间来确定一个或多个节点中的每一个的公共向量空间以及各个向量空间。 信号被映射到每个节点以确定相应的向量空间; 并且使用硬件处理器在公共向量空间中执行干涉对准并且在不相交向量空间中执行零强制。

公开(公告)号：EP3143546A1

公开(公告)日：2017-03-22

申请号：EP15792336.8

申请日：2015-05-15

申请人： NEC Laboratories America, Inc.

发明人： QIAN, Zhiyun ,  WANG, Jun ,  LI, Zhichun ,  WU, Zhenyu ,  RHEE, Junghwan ,  NING, Xia ,  JIANG, Guofei

IPC分类号： G06F21/50 ,  G06F11/30

CPC分类号： H04L63/1425 ,  G06F11/30 ,  G06F21/50 ,  G06F21/552 ,  G06F21/554 ,  G06N99/005 ,  H04L63/1441

摘要： Methods and systems for process constraint include collecting system call information for a process. It is detected whether the process is idle based on the system call information and then whether the process is repeating using autocorrelation to determine whether the process issues system calls in a periodic fashion. The process is constrained if it is idle or repeating to limit an attack surface presented by the process.

摘要翻译： 过程约束的方法和系统包括收集进程的系统调用信息。 基于系统调用信息检测进程是否空闲，然后检查进程是否使用自相关重复以确定进程是否以周期性方式发出系统调用。 如果空闲或重复限制进程所呈现的攻击面，则该进程受到约束。

公开(公告)号：EP3063656A1

公开(公告)日：2016-09-07

申请号：EP14858662.1

申请日：2014-10-29

申请人： NEC Laboratories America, Inc.

发明人： ZHU, Shenghuo ,  LIN, Yuanqing ,  QIAN, Qi

IPC分类号： G06F17/00

CPC分类号： G06K9/6201 ,  G06K9/6232 ,  G06K9/6251

摘要： Methods and systems for distance metric learning include generating two random projection matrices of a dataset from a d-dimensional space into an m-dimensional sub-space, where m is smaller than d. An optimization problem is solved in the m-dimensional subspace to learn a distance metric based on the random projection matrices. The distance metric is recovered in the d-dimensional space.

摘要翻译： 用于距离度量学习的方法和系统包括从d维空间将数据集的两个随机投影矩阵生成到m小于d的m维子空间中。 在m维子空间中解决优化问题，以基于随机投影矩阵来学习距离度量。 在d维空间中恢复距离度量。

公开(公告)号：EP3050222A1

公开(公告)日：2016-08-03

申请号：EP14848026.2

申请日：2014-09-29

申请人： NEC Laboratories America, Inc.

发明人： PRASAD, Narayan ,  RANGARAJAN, Sampath ,  YUE, Guosen ,  XU, Yi

IPC分类号： H04B7/04

摘要： Methods are provided. A method includes determining respective weighted likelihoods corresponding to a plurality of users in a multiple-input multiple-output communication system. The method further includes forming a plurality of user groups from the plurality of users using an iterative K-means clustering technique applied to the plurality of users. The iterative K-means clustering technique is responsive to the respective weighted likelihoods.

摘要翻译： 提供方法。 一种方法包括确定在多输入多输出通信系统中对应于多个用户的各个加权似然度。 该方法还包括使用应用于多个用户的迭代K均值聚类技术从多个用户形成多个用户组。 迭代K均值聚类技术响应各自的加权似然度。

公开(公告)号：EP3042477A1

公开(公告)日：2016-07-13

申请号：EP14841805.6

申请日：2014-06-13

申请人： NEC Laboratories America, Inc.

发明人： LUMEZANU, Cristian ,  YU, Curtis ,  SHARMA, Abhishek ,  JIANG, Guofei ,  XU, Qiang

IPC分类号： H04L12/801 ,  H04L12/931 ,  H04L12/26

CPC分类号： H04L43/106 ,  H04L43/0852

摘要： In a software defined network having switches including first and last switches and intermediate switches, wherein a default routing path exists between the first and last switches, a system and method are provided for computing path latency. The method includes inserting a respective monitoring rule(s) in each switch, mandating for each switch, forwarding a received rule matching packet to a next switch, and further mandating for the first switch and the last switch, sending a PacketIn message to a controller. The method includes inserting, in each switch, a respective monitoring probe(s) matching the respective monitoring rule(s) in a same switch to initiate mandates specified by the respective monitoring rule(s) in the same switch responsive to an arrival of the packet thereat. The method includes time-stamping the PacketIn messages to generate PacketIn timestamps, aggregating the PacketIn timestamps, and estimating the path latency from an aggregation of PacketIn timestamps.

公开(公告)号：EP3014811A1

公开(公告)日：2016-05-04

申请号：EP14818756.0

申请日：2014-06-24

申请人： NEC Laboratories America, Inc.

发明人： PATEL, Ankitkumar ,  JI, Philip Nan ,  WANG, Ting

IPC分类号： H04L12/24 ,  H04L12/28 ,  H04B10/00

CPC分类号： H04J14/0227 ,  G06F9/46 ,  H04L41/0896 ,  H04L45/12 ,  H04L67/10

摘要： A method for solving a cloud embedding problem includes first mapping virtual links over physical links followed by virtual nodes over physical nodes. The inventive method entails an efficient procedure, namely network followed by compute load balancing (NCLB), that first maps virtual links over physical links while balancing network resources, and finally, maps virtual nodes over physical nodes while balancing different types of computational resources.

摘要翻译： 一种用于求解嵌入问题的云方法包括在接着用物理节点虚拟节点的物理链路第一映射虚拟左边。 根据本发明的方法需要以有效的过程，即通过网络计算负载平衡（NCLB）其次，没第一虚拟左映射在物理链路，同时平衡的网络资源，并且最后，用物理节点虚拟节点映射同时平衡不同类型的计算资源。

公开(公告)号：EP2957054A1

公开(公告)日：2015-12-23

申请号：EP14751391.5

申请日：2014-02-12

申请人： NEC Laboratories America, Inc.

发明人： PATEL, Ankitkumar ,  JI, Philip Nan

IPC分类号： H04J14/02

CPC分类号： H04J14/021 ,  H04J14/0224 ,  H04J14/0257 ,  H04L45/12

摘要： A method implemented in a network apparatus used in a wavelength division multiplexing (WDM) optical network is disclosed. The method includes (a) selecting unconsidered virtual link (VL) (
i, ,
j ) with a maximum cost, a cost being requested line rate r
ij on VL(
i,j ) x shortest distance between nodes i and j, (b) selecting unconsidered route k out of AT-shortest routes between nodes i and j of VL(
i, ,
j ), (c) determining a bit map of unconsidered route
k , (d) finding a modulation format that supports requested line rate r
ij with minimum spectrum Formula (I), where S
z
is spectral efficiency with which the modulation format transmits a channel, (e) finding Formula (I) consecutive spectrum slots at
M lowest wavelengths in the bit map of selected route
k , and (f) determining fragmentation factor
F
k
m
after provisioning a channel at each wavelength
m on selected route
k , where 1 ≤
m ≤
M . Other apparatuses, systems, and methods also are disclosed.