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Nec Laboratories America Inc patents


Recent patent applications related to Nec Laboratories America Inc. Nec Laboratories America Inc is listed as an Agent/Assignee. Note: Nec Laboratories America Inc may have other listings under different names/spellings. We're not affiliated with Nec Laboratories America Inc, we're just tracking patents.

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Smuggling detection system

A smuggling detection system and corresponding method are provided. The smuggling detection system includes a camera configured to capture an input image of a subject purported to be a baby. The smuggling detection system further includes a memory storing a deep learning model configured to perform a baby detection task... Nec Laboratories America Inc

Mass transit surveillance camera system

A mass transit surveillance system and corresponding method are provided. The mass transit surveillance system includes a camera configured to capture an input image of a subject purported to be a baby and presented at a mass transit environment. The mass transit surveillance system further includes a memory storing a... Nec Laboratories America Inc

Baby detection for electronic-gate environments

A baby detection system and corresponding method are provided. The baby detection system includes a camera configured to capture an input image of a subject purported to be a baby and presented at an electronic-gate system. The baby detection system further includes a memory storing a deep learning model configured... Nec Laboratories America Inc

Two-level predictive based reactive power coordination and voltage restoration for microgrids

A computer-implemented method for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) is presented. The computer-implemented method includes collecting, by a resiliency controller, measurement data from the microgrid, using a model predictive control (MPC) module to distribute reactive power to each of the DGs of... Nec Laboratories America Inc

Constructing graph models of event correlation in enterprise security systems

Methods and systems for detecting anomalous events include detecting anomalous events in monitored system data. An event correlation graph is generated by determining a tendency for a first process to access a system target, including an innate tendency of the first process to access the system target, an influence of... Nec Laboratories America Inc

Graph-based attack chain discovery in enterprise security systems

Methods and systems for detecting anomalous events include detecting anomalous events in monitored system data. An event correlation graph is generated based on the monitored system data that characterizes the tendency of processes to access system targets. Kill chains are generated that connect malicious events over a span of time... Nec Laboratories America Inc

Online alert ranking and attack scenario reconstruction

Methods and systems for detecting security intrusions include detecting alerts in monitored system data. Temporal dependencies are determined between the alerts based on a prefix tree formed from the detected alerts. Content dependencies between the alerts are determined based on a distance between alerts in a graph representation of the... Nec Laboratories America Inc

Physical system access control

A machine access control system and corresponding method are provided. The machine access control system includes a camera configured to capture an input image of a subject purported to be a person associated with operating a particular workplace machine. The machine access control system further includes a memory storing a... Nec Laboratories America Inc

Camera system for traffic enforcement

A traffic enforcement system and corresponding method are provided. The traffic enforcement system includes a camera configured to capture an input image of one or more subjects in a motor vehicle. The traffic enforcement system further includes a memory storing a deep learning model configured to perform multi-task learning for... Nec Laboratories America Inc

Liveness detection for antispoof face recognition

A face recognition system and corresponding method are provided. The face recognition system includes a camera configured to capture an input image of a subject purported to be a person. The face recognition system further includes a memory storing a deep learning model configured to perform multi-task learning for a... Nec Laboratories America Inc

Security system for facility access control

A facility access control system and corresponding method are provided. The facility access control system includes a camera configured to capture an input image of a subject attempting to enter or exit a restricted facility. The facility access control system further includes a memory storing a deep learning model configured... Nec Laboratories America Inc

Login access control for secure/private data

A login access control system is provided. The login access control system includes a camera configured to capture an input image of a subject purported to be a person and attempting to login to a system to access secure data. The login access control system further includes a memory storing... Nec Laboratories America Inc

Host level detect mechanism for malicious dns activities

A system and computer-implemented method are provided for host level detection of malicious Domain Name System (DNS) activities in a network environment having multiple end-hosts. The system includes a set of DNS resolver agents configured to (i) gather DNS activities from each of the multiple end-hosts by recording DNS queries... Nec Laboratories America Inc

Distributed acoustic sensing system based on delayed optical hybrid phase demodulator

A sensing system adapted to receive backscattered signal from a sensing fiber includes a first Faraday rotator mirror; a second Faraday rotator mirror; an optical hybrid coupled to the Faraday rotator mirrors, wherein one of the mirrors is coupled with an optical path difference; a 3-port optical circulator coupled to... Nec Laboratories America Inc

Constellation design for use in communication systems

Methods and systems for communication with a modified constellation are provided. One of the methods includes coding, by a transmitter in the user equipment, an input data stream into a constellation of symbols having at least two neighboring symbols therein which differ by more than one bit and which are... Nec Laboratories America Inc

Security system using a convolutional neural network with pruned filters

Security systems and methods for detecting intrusion events include one or more sensors configured to monitor an environment. A pruned convolutional neural network (CNN) is configured process information from the one or more sensors to classify events in the monitored environment. CNN filters having the smallest summed weights have been... Nec Laboratories America Inc

Passive pruning of filters in a convolutional neural network

Methods and systems for pruning a convolutional neural network (CNN) include calculating a sum of weights for each filter in a layer of the CNN. The filters in the layer are sorted by respective sums of weights. A set of m filters with the smallest sums of weights is filtered... Nec Laboratories America Inc

Passive pruning of filters in a convolutional neural network

Methods and systems of training a neural network includes training a neural network based on training data. Weights of a layer of the neural network are multiplied by an attrition factor. A block of weights is pruned from the layer if the block of weights in the layer has a... Nec Laboratories America Inc

A data analytic engine towards the self-management of complex physical systems

Systems and methods for anomaly detection in complex physical systems, including extracting features representative of a temporal evolution of the complex physical system, and analyzing the extracted features by deriving vector trajectories using sliding window segmentation of time series, applying a linear test to determine whether the vector trajectories are... Nec Laboratories America Inc

Resiliency controller for voltage regulation in microgrids

A computer-implemented method for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) is presented. The computer-implemented method includes collecting, by a resiliency controller including at least a voltage control module, measurement data from the microgrid, using, by a reactive power estimator, reactive power estimations to... Nec Laboratories America Inc

Analysis and evaluation of a practical downlink multiuser mimo scheduler over lte advanced massive mimo systems

Methods and a system are provided for enhanced long-term evolution scheduling. A ranking is constructed for one or more users scheduled on one or more resource blocks. A layer mapping is generated, using a finite modulation and coding scheme, utilizing the ranking of each of the one or more users... Nec Laboratories America Inc

System fault diagnosis via efficient temporal and dynamic historical fingerprint retrieval

Methods are provided for both single modal and multimodal fault diagnosis. In a method, a fault fingerprint is constructed based on a fault event using an invariant model. A similarity matrix between the fault fingerprint and one or more historical representative fingerprints are derived using dynamic time warping and at... Nec Laboratories America Inc

System and reducing time-averaged peak charges

Systems and methods for minimizing demand charges, including determining one or more optimal monthly demand charge thresholds based on historical load data, time of use charges, demand charges, and energy storage unit size for one or more end users. A grid power dispatch setpoint is calculated for a particular time... Nec Laboratories America Inc

Fine-grain synchronization in data-parallel jobs

A computer-implemented method and computer processing system are provided. The method includes synchronizing, by a processor, respective ones of a plurality of data parallel workers with respect to an iterative process. The synchronizing step includes individually continuing, by the respective ones of the plurality of data parallel workers, from a... Nec Laboratories America Inc

Medical history extraction using string kernels and skip grams

Systems and methods for document analysis include identifying candidates in a corpus matching a requested expression. String kernel features are extracted for each candidate. Each candidate is classified according to the string kernel features using a machine learning model. A report is generated that identifies instances of the requested expression... Nec Laboratories America Inc

System and communication efficient sparse-reduce

Systems and methods for building a distributed learning framework, including generating a sparse communication network graph with a high overall spectral gap. The generating includes computing model parameters in distributed shared memory of a cluster of a plurality of worker nodes; determining a spectral gap of an adjacency matrix for... Nec Laboratories America Inc

Entity embedding-based anomaly detection for heterogeneous categorical events

A system and method are provided. The system includes a processor. The processor is configured to receive a plurality of events from network devices, the plurality of events including entities that are involved in the plurality of events. The processor is further configured to embed the entities into a common... Nec Laboratories America Inc

Two-stage algorithm for uplink comp

A computer-implemented method for associating users to transmission points over an uplink (UL) of a heterogeneous network (HetNet) is presented. The computer-implemented method includes communicating, via the processor, with a cluster of transmission points, associating each user to one transmission point within the cluster of transmission points by a two-stage... Nec Laboratories America Inc

System failure prediction using long short-term memory neural networks

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... Nec Laboratories America Inc

Mobile phone with system failure prediction using long short-term memory neural networks

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... Nec Laboratories America Inc

Extraction and comparison of hybrid program binary features

Systems and methods for identifying similarities in program binaries, including extracting program binary features from one or more input program binaries to generate corresponding hybrid features. The hybrid features include a reference feature, a resource feature, an abstract control flow feature, and a structural feature. Combinations of a plurality of... Nec Laboratories America Inc

Deep 3d attention long short-term memory for video-based action recognition

A method, a computer program product, and a system are provided for video based action recognition. The system includes a processor. One or more frames from one or more video sequences are received. A feature vector for each patch of the one w more frames is generated using a deep... Nec Laboratories America Inc

Video capturing device for predicting special driving situations

A video device for predicting driving situations while a person drives a car is presented. The video device includes multi-modal sensors and knowledge data for extracting feature maps, a deep neural network trained with training data to recognize real-time traffic scenes (TSs) from a viewpoint of the car, and a... Nec Laboratories America Inc

Multi-modal driving danger prediction system for automobiles

A computer-implemented method for training a deep neural network to recognize traffic scenes (TSs) from multi-modal sensors and knowledge data is presented. The computer-implemented method includes receiving data from the multi-modal sensors and the knowledge data and extracting feature maps from the multi-modal sensors and the knowledge data by using... Nec Laboratories America Inc

Deep high-order exemplar learning for hashing and fast information retrieval

A system and method are provided for deep high-order exemplar learning of a data set. Feature vectors and class labels are received. Each of the feature vectors represents a respective one of a plurality of high-dimensional data points of the data set. The class labels represent classes for the high-dimensional... Nec Laboratories America Inc

10/12/17 / #20170294091

Video-based action recognition security system

A video monitoring system and method are provided. The video monitoring system includes a camera. The camera is positioned to monitor an area and capture live video to provide a live video stream. The video monitoring system also includes a security processing system. The security processing system includes a processor... Nec Laboratories America Inc

10/05/17 / #20170286776

Large margin high-order deep learning with auxiliary tasks for video-based anomaly detection

A video camera is provided for video-based anomaly detection that includes at least one imaging sensor configured to capture video sequences in a workplace environment having a plurality of machines therein. The video camera further includes a processor. The processor is configured to generate one or more predictions of an... Nec Laboratories America Inc

10/05/17 / #20170286826

Real-time deep learning for danger prediction using heterogeneous time-series sensor data

A computer-implemented method and a system are provided for, in turn, providing driver assistance for a vehicle. The method includes forming, by a processor, a deep High-Order Long Short-Term Memory (HOLSTM)-based model by applying, to a HOLSTM, high-order interactions captured between global pattern distribution probabilities and local feature representations of... Nec Laboratories America Inc

10/05/17 / #20170288974

Graph-based fusing of heterogeneous alerts

Methods and systems for reporting anomalous events include intra-host clustering a set of alerts based on a process graph that models states of process-level events in a network. Hidden relationship clustering is performed on the intra-host clustered alerts based on hidden relationships between alerts in respective clusters. Inter-host clustering is... Nec Laboratories America Inc

10/05/17 / #20170288979

Blue print graphs for fusing of heterogeneous alerts

Methods and systems for reporting anomalous events include building a process graph that models states of process-level events in a network. A topology graph is built that models source and destination relationships between connection events in the network. A set of alerts is clustered based on the process graph and... Nec Laboratories America Inc

10/05/17 / #20170289409

Large margin high-order deep learning with auxiliary tasks for video-based anomaly detection

A computer-implemented method and system are provided for video-based anomaly detection. The method includes forming, by a processor, a Deep High-Order Convolutional Neural Network (DHOCNN)-based model having a one-class Support Vector Machine (SVM) as a loss layer of the DHOCNN-based model. An objective of the SVM is configured to perform... Nec Laboratories America Inc

09/28/17 / #20170277997

Invariants modeling and detection for heterogeneous logs

A method is provided that is performed in a network having nodes that generate heterogeneous logs including performance logs and text logs. The method includes performing, during a heterogeneous log training stage, (i) a log-to-time sequence conversion process for transforming clustered ones of training logs, from among the heterogeneous logs,... Nec Laboratories America Inc

09/28/17 / #20170278007

Early warning prediction system

A computer-implemented method provides an early warning of an impending failure in a monitored system. The method includes performing, by a processor, an offline model learning process that generates a model of expected log rates in the monitored system from historical log data. The model represents a normal behavior of... Nec Laboratories America Inc

09/28/17 / #20170278544

Efficient video annotation with optical flow based estimation and suggestion

A computer-implemented method is provided for video annotation of a video sequence that includes a plurality of frames. The method includes storing, by a computer, information representative of a bounding box around a given target object in the video sequence in both a first frame and a last frame of... Nec Laboratories America Inc

09/28/17 / #20170279242

3-dimensional inscripted wdm coupler for optical amplifiers and methods for using 3-dimensional inscripted wdm couplers in networks

A 3-dimensional (3-D) inscripted wavelength division multiplexer (WDM) coupler for optical amplifiers is provided. The 3-D WDM coupler includes a substrate. The 3-D WDM coupler further includes a 3-dimensional pump waveguide direct laser inscripted into the substrate. The 3-D WDM coupler also includes a optical pump laser coupled into the... Nec Laboratories America Inc

09/28/17 / #20170279840

Automated event id field analysis on heterogeneous logs

A system, program, and method for anomaly detection in heterogeneous logs. The system having a processor configured to identify pattern fields comprised of a plurality of event identifiers. The processor is further configured to generate an automata model by profiling event behaviors of the plurality of event sequences, the plurality... Nec Laboratories America Inc

09/21/17 / #20170271880

Resiliency controller for frequency regulation in islanded microgrid

Aspects of the present disclosure describe structures of, and methods for operating a resiliency controller in an islanded microgrid. The resiliency controller exhibits a dynamic droop algorithm for frequency control, employs multiple modules including a frequency control module for microgrid frequency regulation and a State-of-Charge (SOC) based dynamic droop control... Nec Laboratories America Inc

09/21/17 / #20170272344

Real-time detection of abnormal network connections in streaming data

A computer-implemented method for real-time detecting of abnormal network connections is presented. The computer-implemented method includes collecting network connection events from at least one agent connected to a network, recording, via a topology graph, normal states of network connections among hosts in the network, and recording, via a port graph,... Nec Laboratories America Inc

09/14/17 / #20170262736

Deep deformation network for object landmark localization

A system and method are provided. The system includes a processor. The processor is configured to generate a response map for an image, using a four stage convolutional structure. The processor is further configured to generate a plurality of landmark points for the image based on the response map, using... Nec Laboratories America Inc

09/14/17 / #20170265083

Enabling technologies for lte on unlicensed spectrum

Methods and a system are provided for enabling coexistence of WIFI and Long Term Evolution (LTE) in a wireless communication system. A method includes embedding in a data sequence, by a base station capable of transmitting and receiving LTE frames, a channel reservation packet that (i) is detectable by a... Nec Laboratories America Inc

09/14/17 / #20170265104

System and dynamic provisioning of wi-fi capacity in large venues using c-ran architecture

A computer-implemented method for dynamic provisioning of Wi-Fi capacity in areas using a centralized radio access network (C-RAN) architecture is presented. The computer-implemented method includes introducing a set of access points (APs) in a network for providing capacity required to serve a plurality of users accessing heterogeneous content, introducing a... Nec Laboratories America Inc

09/07/17 / #20170256004

Optimal battery sizing for behind-the-meter applications considering participation in demand response programs and demand charge reduction

A system and method are provided. The system includes a processor. The processor is configured to receive power related data relating to power usage of power consuming devices at a customer site from a plurality of sources. The processor is further configured to generate object function inputs from the power... Nec Laboratories America Inc

08/31/17 / #20170249515

Video camera device and system using recursive neural networks for future event prediction

A camera device and camera system for video-based workplace safety is provided. The camera device includes at least one imaging sensor configured to capture one or more video sequences in a workplace environment having a plurality of machines therein. The video camera further includes a processor. The processor is configured... Nec Laboratories America Inc

08/31/17 / #20170249549

Recursive neural networks on future event prediction

Systems and methods for training a recursive neural network (RNN) is provided. The method includes generating, by the processor using the RNN, a plurality of embedding vectors based on a plurality of observations, wherein the observations include (i) a subject, (ii) an action taken by the subject, and (iii) an... Nec Laboratories America Inc

08/24/17 / #20170244252

Autonomous operational platform for micro-grid energy management

A computer-implemented method is provided for managing a plurality of micro grids in an energy system. The method includes collecting and maintaining, in a central database, configuration information and state information for the plurality of micro grids, by a processor-based dynamic operation engine. The method further includes identifying failures in... Nec Laboratories America Inc

08/24/17 / #20170244620

High fidelity data reduction for system dependency analysis

Methods and systems for dependency tracking include identifying a hot process that generates bursts of events with interleaved dependencies. Events related to the hot process are aggregated according to a process-centric dependency approximation that ignores dependencies between the events related to the hot process. Causality in a reduced event stream... Nec Laboratories America Inc

08/24/17 / #20170244733

Intrusion detection using efficient system dependency analysis

Methods and systems for intrusion detection include determining a causality trace for a flagged event. Determining the causality trace includes identifying a hot process that generates bursts of events with interleaved dependencies, aggregating events related to the hot process according to a process-centric dependency approximation that ignores dependencies between the... Nec Laboratories America Inc

08/17/17 / #20170235626

Anomaly fusion on temporal casualty graphs

An exemplary method for detecting one or more anomalies in a system includes building a temporal causality graph describing functional relationship among local components in normal period; applying the causality graph as a propagation template to predict a system status by iteratively applying current system event signatures; and detecting the... Nec Laboratories America Inc

08/17/17 / #20170236023

Fast pattern discovery for log analytics

Systems and methods are disclosed for parsing logs from arbitrary or unknown systems or applications by capturing heterogeneous logs from the arbitrary or unknown systems or applications; generating one pattern for every unique log message; building a pattern hierarchy tree by grouping patterns based on similarity metrics, and for every... Nec Laboratories America Inc

08/17/17 / #20170236069

Scalable supervised high-order parametric embedding for big data visualization

A method is provided for scalable supervised high-order parametric embedding for big data visualization. The method is performed by a processor and includes receiving feature vectors and class labels. Each feature vector is representative of a respective one of a plurality of high-dimensional data points. The class labels denote classes... Nec Laboratories America Inc

08/10/17 / #20170228277

Ranking causal anomalies via temporal and dynamical analysis on vanishing correlations

A method is provided for root cause anomaly detection in an invariant network having a plurality of nodes that generate time series data. The method includes modeling anomaly propagation in the network. The method includes reconstructing broken invariant links in an invariant graph based on causal anomaly ranking vectors. Each... Nec Laboratories America Inc

08/10/17 / #20170228617

Video monitoring using semantic segmentation based on global optimization

Methods and systems for monitoring a video feed include capturing input data representing a monitored area using one or more cameras to produce an input data set comprising individual images. Initial segmentation scores are determined for each image of the input data set using a neural network, with each image... Nec Laboratories America Inc

08/10/17 / #20170228641

Distance metric learning with n-pair loss

A method includes receiving N pairs of training examples and class labels therefor. Each pair includes a respective anchor example, and a respective non-anchor example capable of being a positive or a negative training example. The method further includes extracting features of the pairs by applying a DHCNN, and calculating,... Nec Laboratories America Inc

08/10/17 / #20170228645

Accelerating deep neural network training with inconsistent stochastic gradient descent

Aspects of the present disclosure describe techniques for training a convolutional neural network using an inconsistent stochastic gradient descent (ISGD) algorithm. Training effort for training batches used by the ISGD algorithm are dynamically adjusted according to a determined loss for a given training batch which are classified into two sub... Nec Laboratories America Inc

08/10/17 / #20170228873

Semantic segmentation based on global optimization

Methods and systems for data segmentation include determining initial segmentation scores for each unit of an input data set using a neural network, with each unit being assigned an initial segmentation score for each of multiple segmentation classes. Final segmentation scores are determined for each unit of the input data... Nec Laboratories America Inc

Patent Packs
08/10/17 / #20170229881

Resilient battery charging strategies to reduce battery degradation and self-discharging

Computer-implemented methods and, a system are provided. A method includes constructing by an Energy Management System (EMS), one or more optimization-based techniques for resilient battery charging based on an optimization problem having an EMS cost-based objective function. The one or more optimization-based techniques are constructed to include a battery degradation... Nec Laboratories America Inc

08/03/17 / #20170219233

Multi-layer optimal chiller operation management framework

Aspects of the present disclosure describe a multi-layer chiller operation management framework and associated methods for managing heating, ventilation, and air conditioning (HVAC) multi-chiller unit operation in real time serving varying system loads. According to the present disclosure, the framework includes two layers—a first layer providing 24-hour chiller operation planning... Nec Laboratories America Inc

08/03/17 / #20170220639

Risky behavior query construction and execution

Systems and a method are provided. A system includes a Temporal Behavior Query Language (TBQL) server having a processor and a memory operably coupled to the processor. The TBQL server configured to construct a TBQL query using a grammar inference technique based on syntactic sugar to expedite query construction. The... Nec Laboratories America Inc

07/27/17 / #20170209725

Apparatus, methods, and systems for monitoring fire extinguisher operational readiness

Aspects of the present disclosure describe apparatus, methods and systems for monitoring the operational status of fire extinguishers through the utilization of optically sensed, color profile determinations of a pressure gauge positioned on the fire extinguisher as well as the utilization of vibrational, and location sensing devices. Advantageously, monitoring apparatus... Nec Laboratories America Inc

07/27/17 / #20170209726

Networked systems for monitoring fire extinguisher operational readiness

Aspects of the present disclosure describe apparatus, methods and systems for monitoring the operational status of fire extinguishers through the utilization of optically sensed, color profile determinations of a pressure gauge positioned on the fire extinguisher as well as the utilization of vibrational, and location sensing devices. Advantageously, monitoring apparatus... Nec Laboratories America Inc

07/27/17 / #20170211937

Indoor positioning system with fast plan mapping

An in-door positioning system for a building includes three or more external positioning devices (EPDs), wherein the EPD is capable of calculating the distance between each other; a floor plan module with a floor plan map of the building, for a building level of interest; and relative positions of the... Nec Laboratories America Inc

07/27/17 / #20170211970

Method to increase the signal to noise ratio of distributed acoustic sensing by spatial averaging

A system to perform distributed acoustic sensing (DAS) in an environment with acoustic vibrations present includes at least an optical fiber positioned in said environment, wherein the optical fiber comprises N spatial channels and N laser pulses are launched into the N spatial channels of the optical fiber and propagate... Nec Laboratories America Inc

07/27/17 / #20170212238

Remote sensing of an object's direction of lateral motion using phase difference based orbital angular momentum spectroscopy

A system for sensing a remote object includes a light beam for illuminating the remote object; a sensor to determine an orbital angular momentum (OAM) of the light beam; and a processor with code to determine the remote object's direction of lateral motion.... Nec Laboratories America Inc

07/27/17 / #20170214463

Bi-directional transmission over an elliptical core optical fiber

Systems and methods for optical communication are disclosed that include communicating data using one or more transceiver pairs coupled to a spatial-multiplexer (S-MUX); performing bi-directional transmissions over an elliptical core optical fiber to a spatial-demultiplexer (S-DEMUX) using spatial modes to communicate data in either direction between two transceiver pairs with... Nec Laboratories America Inc

07/27/17 / #20170214465

Multimode elliptical core optical data transmission

Methods and system for transmitting data includes converting multiple optical beams to distinct respective spatial modes. Data is modulated onto each of the optical beams. The optical beams are combined into a single transmission beam. The transmission beam is launched onto a multimode optical fiber having an elliptical core.... Nec Laboratories America Inc

07/13/17 / #20170199093

Multi-parameter sensing based on few-mode fiber bragg gratings using femtosecond ir laser

A sensor system includes a femtosecond infrared (fs-IR) laser to generate a laser beam; a reflecting mirror optically receiving the laser beam; a lens optically coupled to the reflecting mirror to focus the laser beam; a phase mask receiving the laser beam from the lens to generate an index modulated... Nec Laboratories America Inc

07/13/17 / #20170201462

Data routing in hybrid wireless communication networks

Data is routed in a mesh network of devices that can communicate wirelessly through a plurality of technologies. One or more of such devices receive broadcast message(s) from a destination device intended to receive the data, and generate a first radio link quality metric (RLQM) value based on the broadcast... Nec Laboratories America Inc

06/08/17 / #20170158129

Long term driving danger prediction system

Systems and methods are disclosed to assist a driver with a dangerous condition by creating a graph representation where traffic participants and static elements are the vertices and the edges are relations between pairs of vertices; adding attributes to the vertices and edges of the graph based on information obtained... Nec Laboratories America Inc

06/08/17 / #20170161109

Consistent hashing

Computer-implemented methods and a system are provided for distributing tasks between a plurality of processes in a computer network. A method includes distributing, by a load balancer in the computer network, tasks between the plurality of processes. The method further includes maintaining, by the load balancer, a registry for each... Nec Laboratories America Inc

05/25/17 / #20170149814

Real-time detection of abnormal network connections in streaming data

Methods and systems for detecting anomalous network activity include determining whether a network event exists within an existing topology graph and port graph. A connection probability for the network event is determined if the network does not exist within the existing topology graph and port graph. The network event is... Nec Laboratories America Inc

Patent Packs
05/18/17 / #20170139806

Automated anomaly detection service on heterogeneous log streams

Systems and methods are disclosed for handling log data from one or more applications, sensors or instruments by receiving heterogeneous logs from arbitrary/unknown systems or applications; generating regular expression patterns from the heterogeneous log sources using machine learning and extracting a log pattern therefrom; generating models and profiles from training... Nec Laboratories America Inc

05/11/17 / #20170132053

Request profile in multi-threaded service systems with kernel events

Methods and systems for profiling requests include generating request units based on collected kernel events that include complete request units and half-open request units. The generated request units are sequenced based on a causality relationship set that describes causality relationships between kernel events.... Nec Laboratories America Inc

05/11/17 / #20170132278

Systems and methods for inferring landmark delimiters for log analysis

Systems and methods are disclosed for analyzing logs generated by a machine by analyzing a log and identifying one or more abstract landmark delimiters (ALDs) representing delimiters for log tokenization; from the log and ALDs, tokenizing the log and generating an increasingly tokenized format by separating the patterns with the... Nec Laboratories America Inc

05/11/17 / #20170132523

Periodicity analysis on heterogeneous logs

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... Nec Laboratories America Inc

05/04/17 / #20170123859

Systems and methods for distributed assignment of task identifiers

A system and method are provided. The method includes a base station receiving a plurality of tasks from a plurality of user devices, each of the plurality of tasks involving a respective one of multiple sets of jobs. The method further includes a load balancer generating task allocations for the... Nec Laboratories America Inc

05/04/17 / #20170124409

Cascaded neural network with scale dependent pooling for object detection

A computer-implemented method for training a convolutional neural network (CNN) is presented. The method includes receiving regions of interest from an image, generating one or more convolutional layers from the image, each of the one or more convolutional layers having at least one convolutional feature within a region of interest,... Nec Laboratories America Inc

05/04/17 / #20170124415

Subcategory-aware convolutional neural networks for object detection

A computer-implemented method for detecting objects by using subcategory-aware convolutional neural networks (CNNs) is presented. The method includes generating object region proposals from an image by a region proposal network (RPN) which utilizes subcategory information, and classifying and refining the object region proposals by an object detection network (ODN) that... Nec Laboratories America Inc

05/04/17 / #20170124433

Unsupervised matching in fine-grained datasets for single-view object reconstruction

A computer-implemented method for training a deep learning network is presented. The method includes receiving a first image and a second image, mining exemplar thin-plate spline (TPS) to determine transformations for generating point correspondences between the first and second images, using artificial point correspondences to train the deep neural network,... Nec Laboratories America Inc

05/04/17 / #20170124711

Universal correspondence network

A computer-implemented method for training a convolutional neural network (CNN) is presented. The method includes extracting coordinates of corresponding points in the first and second locations, identifying positive points in the first and second locations, identifying negative points in the first and second locations, training features that correspond to positive... Nec Laboratories America Inc

05/04/17 / #20170126798

Design of randomization function and its application in load balancing

A load balancing device and method are provided. The load balancing device includes a processor. The processor is configured to receive a plurality of tasks from a plurality of user devices, each of the plurality of tasks involving a respective one of multiple sets of sessions. The processor is further... Nec Laboratories America Inc

04/27/17 / #20170112383

Three dimensional vein imaging using photo-acoustic tomography

Systems and methods for imaging a three-dimensional (3D) biometric object, including receiving the 3D biometric object into a scanning area. An image of the 3D biometric object is generated using photo-acoustic tomography by illuminating one or more veins in the 3D biometric object using a light source, and detecting acoustic... Nec Laboratories America Inc

04/27/17 / #20170115218

Flexible three-dimensional long-path gas sensing by unmanned vehicles

Systems and methods for generating a three-dimensional gas map includes a remote vehicle including reflective material. A positioning stage including multidimensional movement to track the remote vehicle. A light head to reflect light off of the remote vehicle. A controller to analyze received light to determine gas content and generate... Nec Laboratories America Inc

04/27/17 / #20170115358

Innovative framework combining cycling and calendar aging models

Aspects of the present disclosure describe a single battery degradation model and methods that considers both CYCLING and CALENDAR aging and useful in both energy management and battery management systems that may employ any of a variety of known battery technologies.... Nec Laboratories America Inc

04/27/17 / #20170116520

Memory efficient scalable deep learning with model parallelization

Methods and systems for training a neural network include sampling multiple local sub-networks from a global neural network. The local sub-networks include a subset of neurons from each layer of the global neural network. The plurality of local sub-networks are trained at respective local processing devices to produce trained local... Nec Laboratories America Inc

04/27/17 / #20170117744

Pv ramp rate control using reinforcement learning technique through integration of battery storage system

Systems and methods are disclosed for storing photovoltaic (PV) generation by applying reinforcement learning (RL)-based control to battery storages for PV ramp rate control; and exchanging energy dynamically to limit a ramp rate of the PV power output and maintaining a battery state of charge level at a predefined level... Nec Laboratories America Inc

04/27/17 / #20170117982

Redundancy protection for reconfigurable optical add/drop multiplexing (roadm) branching unit

Aspects of the present disclosure describe systems, structures and methods providing fully reconfigurable optical add-drop multiplexing (ROADM) that provide redundancy protection against any two (2) simultaneous wavelength selective switch (WSS) failures with only four 2×1 WSS structures for both Eastbound and Westbound traffic, while not requiring bidirectional operation of the... Nec Laboratories America Inc

04/27/17 / #20170118100

Vm-to-vm traffic estimation in multi-tenant data centers

Methods and systems for network management include performing path regression to determine an end-to-end path across physical links for each data flow in a network. A per-flow utilization of each physical link in the network is estimated based on the determined end-to-end paths. A management action is performed in the... Nec Laboratories America Inc

04/20/17 / #20170111234

System and fault-tolerant parallel learning over non-iid data

A network device, system, and method are provided. The network device includes a processor. The processor is configured to store a local estimate and a dual variable maintaining an accumulated subgradient for the network device. The processor is further configured to collect values of the dual variable of neighboring network... Nec Laboratories America Inc

04/20/17 / #20170111861

Optimizing energy efficiency over energy-harvesting lte cellular networks

A method is provided for optimizing energy efficiency over an energy-harvesting Long Term Evolution cellular network. The method includes assigning (a) resource blocks, (b) transmission modes, and (c) bit loadings on the resource blocks to a set of users such that (i) the assigned resource blocks satisfy a system of... Nec Laboratories America Inc

04/13/17 / #20170104496

Iterative decoding scheme of concatenated ldpc and bch codes for optical transport network

Systems and methods are disclosed for optically communicating data by, at a transmitter side, encoding a block of input bits by one or more outer encoders, and after interleaving the encoded bits, permuting the encoded bits according to a predetermined sequence or order, and further encoding the encoded bits by... Nec Laboratories America Inc

04/13/17 / #20170104595

Physical layer key distribution for long distance repeated networks using random environmental instability

Aspects of the present disclosure describe methods and systems for improved secure key generation and distribution employing environmental instability induced signal phase fluctuations that are compatible with commercial wavelength division multiplexed (WDM) optical systems and associated optical amplifiers for long-haul transmission.... Nec Laboratories America Inc








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