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241.发明授权公开(公告)号：US10205592B2
公开(公告)日：2019-02-12
申请号：US15279397
申请日：2016-09-28
Applicant: NEC Laboratories America, Inc.
Inventor： Yue-Kai Huang , Fatih Yaman , Ben Wu
Abstract: 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.
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公开(公告)号：US20190036482A1
公开(公告)日：2019-01-31
申请号：US16037381
申请日：2018-07-17
Applicant: NEC Laboratories America, Inc.
Inventor： Chenrui Jin , Babak Asghari , Ratnesh Sharma
IPC: H02S40/38 , H02J7/35 , H01L31/042 , H02J7/00
Abstract: A computer-implemented method executed on a processor for outputting a smoothed photovoltaic (PV) power output from a battery of a power control system communicating with one or more microgrids is presented. The method includes curtailing an input signal received from a plurality of sensors, smoothing the input signal by employing a fuzzy logic based low pass filter having an adaptive window to generate a power reference command, applying a hard ramp rate limit to the power reference command, adjusting battery power output of the battery to satisfy battery constraints and a no-power-from-grid constraint, and distributing energy from the battery based on the adjusted battery power output.
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243.发明申请公开(公告)号：US20190005554A1
公开(公告)日：2019-01-03
申请号：US15992955
申请日：2018-05-30
Applicant: NEC Laboratories America, Inc.
Inventor： Babak Asghari , Ratnesh Sharma , Mohammad Rasoul Narimani
Abstract: A system, method, and computer-program product are provided for controlling a distributed energy storage system (ESS) operatively coupled to one or more microgrids. The system includes a memory for storing program code. The system further includes a processor for running the program code to respectively assign a first, a second, and a third set of weights to a first, a second, and a third objective function formulated to minimize an ESS cost, minimize a Demand Charge (DC) cost, and maximize a Photovoltaic utilization, respectively. The processor further runs the program code to execute a multi-objective ESS optimizing engine to obtain a set of different monthly-based optimal solutions for controlling the ESS by concurrently processing the first, the second, and the third objective functions using different ones of the weights from the first, the second, and the third set of weights.
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公开(公告)号：US10161269B2
公开(公告)日：2018-12-25
申请号：US15211191
申请日：2016-07-15
Applicant: NEC Laboratories America, Inc.
Inventor： Kai Zhang , Haifeng Chen , Kenji Yoshihira , Guofei Jiang
Abstract: Systems and methods are provided for optimizing system output in production systems, comprising. The method includes separating, by a processor, one or more initial input variables into a plurality of output variables, the output variables including environmental variables and system response variables. The method also includes building, using the processor, a nonparametric estimation that determines a relationship between one or more initial control variables and the system response variables, and estimating a global input-output mapping function, using the determined relationship, and a range of the environmental variables. The method further includes generating one or more optimal control variables from the initial control variables by maximizing the input-output mapping function and the range of the environmental variables. The method additionally includes incorporating one or more of the optimal control variables into a production system to increase production output of the production system.
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公开(公告)号：US20180365665A1
公开(公告)日：2018-12-20
申请号：US15983415
申请日：2018-05-18
Applicant: NEC Laboratories America, Inc. , NEC Corporation
Inventor： Tan Yan , Haifeng Chen , Ajiro Yasuhiro
Abstract: A method is provided for banking with suspicious remittance detection for a set of users. The method includes detecting, by a server having a processor operatively coupled to a memory, unrealistic user location movements, based on login activities and remittance activities. The method includes detecting abnormal user remittance behavior based on account activities and the remittance activities by detecting any users who are silent for a threshold period of time and thereafter remit an amount of money greater than a threshold money amount. The method includes detecting abnormal overall user behavior, based a joint user profile determined across all users from the login, remittance, and account activities. The method includes aggregating detection results to generate a final list of suspicious transactions. The method includes performing a loss preventative action for the suspicious transactions in the final list by preventing a completion of the suspicious transactions and notifying bank personnel.
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Patent Agency Ranking
公开(公告)号：US20180364655A1
公开(公告)日：2018-12-20
申请号：US16009822
申请日：2018-06-15
Applicant: NEC Laboratories America, Inc.
Inventor： Tan Yan , Haifeng Chen , LuAn Tang
CPC classification number: G05B13/0265 , B01D53/30 , B01D2258/06 , G05B13/04
Abstract: A computer-implemented method, system, and computer program product are provided for anomaly detection. The method includes receiving, by a processor, sensor data from a plurality of sensors in a system. The method also includes generating, by the processor, a relationship model based on the sensor data. The method additionally includes updating, by the processor, the relationship model with new sensor data. The method further includes identifying, by the processor, an anomaly based on a fused single-variant time series fitness score in the relationship model. The method also includes controlling an operation of a processor-based machine to change a state of the processor-based machine, responsive to the anomaly.
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公开(公告)号：US20180336437A1
公开(公告)日：2018-11-22
申请号：US15981109
申请日：2018-05-16
Applicant: NEC Laboratories America, Inc.
Inventor： Wei Cheng , Haifeng Chen , Kenji Yoshihira
Abstract: A computer-implemented method, system, and computer program product are provided for a streaming graph display system with anomaly detection. The method includes receiving, by a processor, data or signals for creating a streaming graph. The method also includes creating, by the processor, a streaming graph from a plurality of vertices and edges in the data or the signals. The method additionally includes identifying, by the processor, an anomaly in the streaming graph based on a distance between edge codes and all current cluster centers determined by the plurality of vertices and edges. The method further includes controlling, by the processor, an operation of a processor-based machine to change a state of the processor-based machine, responsive to the anomaly. The method also includes displaying the streaming graph with the anomaly to a user.
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公开(公告)号：US20180336218A1
公开(公告)日：2018-11-22
申请号：US15979514
申请日：2018-05-15
Applicant: NEC Laboratories America, Inc.
Inventor： Ding Li , Kangkook Jee , Zhichun Li , Mu Zhang , Zhenyu Wu
Abstract: Systems and methods for mining and compressing commercial data including a network of point of sale devices to log commercial activity data including independent commercial events and corresponding dependent features. A middleware system is in communication with the network of point of sale devices to continuously collect and compress a stream of the commercial activity data and concurrently store the compressed commercial activity data. Compressing the stream includes a file access table corresponding to the commercial activity data, producing compressible file access templates (CFATs) according to frequent patterns of commercial activity data using the file access table, and replacing dependent feature sequences with a matching compressible file access template. A database is in communication with the middleware system to store the compressed commercial data. A commercial pattern analysis system is in communication with the database to determine patterns in commercial activities across the network of point of sale devices.
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公开(公告)号：US20180330250A1
公开(公告)日：2018-11-15
申请号：US15974155
申请日：2018-05-08
Applicant: NEC Laboratories America, Inc.
Inventor： Kiyoshi Nakayama , Ratnesh Sharma
CPC classification number: G06N5/04 , G06N99/005 , H02J13/0006
Abstract: A computer-implemented method for detecting and predicting anomalies in an energy management system is presented. The method includes detecting, in real-time, a first set of outliers for a plurality of energy devices under operation, predicting a second set of outliers for running the plurality of energy devices, analyzing historical energy data of the plurality of energy devices to extract a third set of outliers, receiving feedback, in real-time, from a user regarding each of the first, second, and third sets of outliers, and training the energy management system with the real-time feedback received from the user to automatically optimize a threshold of error detection.
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公开(公告)号：US20180309648A1
公开(公告)日：2018-10-25
申请号：US15956392
申请日：2018-04-18
Applicant: NEC Laboratories America, Inc.
Inventor： Biplob Debnath , Hui Zhang
CPC classification number: H04L43/06 , G06F16/325 , G06F17/277 , G06K9/6253 , G06K9/726 , H04W4/38 , H04W4/70
Abstract: A computer-implemented method for generating patterns from a set of heterogeneous log messages is presented. The method includes collecting the set of heterogenous log messages from arbitrary or unknown systems or applications or sensors or instruments, splitting the log messages into tokens based on a set of delimiters, identifying datatypes of the tokens, identifying a log structure of the log messages by generating pattern-signatures of all the tokens and the datatypes based on predefined pattern settings, generating a pattern for each of the log structures and enabling users to edit the pattern for each of the log structures based on user requirements.
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