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公开(公告)号：US12205418B2
公开(公告)日：2025-01-21
申请号：US17464056
申请日：2021-09-01
Applicant: NEC Laboratories America, Inc. , NEC Corporation
Inventor： Luan Tang , Wei Cheng , Haifeng Chen , Yuji Kobayashi , Zhengzhang Chen
Abstract: A method for early warning is provided. The method clusters normal historical data of normal cars into groups based on the car subsystem to which they belong. The method extracts (i) features based on group membership and (ii) feature correlations based on correlation graphs formed from the groups. The method trains an Auto-Encoder and Auto Decoder (AE&AD) model based on the features and the feature correlations to reconstruct the normal historical data with minimum reconstruction errors. The method reconstructs, using the trained AE&AD model, historical data of specific car fault types with reconstruction errors, normalizes the reconstruction errors, and selects features of the car faults with a top k large errors as fault signatures. The method reconstructs streaming data of monitored cars using the trained AE&AD model to determine streaming reconstruction errors, comparing the streaming reconstruction errors with the fault signatures to predict and provide alerts for impending known faults.
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公开(公告)号：US12205356B2
公开(公告)日：2025-01-21
申请号：US18188766
申请日：2023-03-23
Applicant: NEC Laboratories America, Inc.
Inventor： Samuel Schulter , Sparsh Garg , Manmohan Chandraker
IPC: G06V10/776 , G06T7/00 , G06T7/11 , G06V10/74 , G06V10/774 , G06V20/70 , H04N17/00
Abstract: Methods and systems for detecting faults include capturing an image of a scene using a camera. The image is embedded using a segmentation model that includes an image branch having an image embedding layer that embeds images into a joint latent space and a text branch having a text embedding layer that embeds text into the joint latent space. Semantic information is generated for a region of the image corresponding to a predetermined static object using the embedded image. A fault of the camera is identified based on a discrepancy between the semantic information and semantic information of the predetermined static image. The fault of the camera is corrected.
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公开(公告)号：US12201403B2
公开(公告)日：2025-01-21
申请号：US17325613
申请日：2021-05-20
Applicant: NEC Laboratories America, Inc.
Inventor： Kunal Rao , Giuseppe Coviello , Min Feng , Biplob Debnath , Wang-pin Hsiung , Murugan Sankaradas , Srimat Chakradhar , Yi Yang , Oliver Po , Utsav Drolia
Abstract: A method for free flow fever screening is presented. The method includes capturing a plurality of frames from thermal data streams and visual data streams related to a same scene to define thermal data frames and visual data frames, detecting and tracking a plurality of individuals moving in a free-flow setting within the visual data frames, and generating a tracking identification for each individual of the plurality of individuals present in a field-of-view of the one or more cameras across several frames of the plurality of frames. The method further includes fusing the thermal data frames and the visual data frames, measuring, by a fever-screener, a temperature of each individual of the plurality of individuals within and across the plurality of frames derived from the thermal data streams and the visual data streams, and generating a notification when a temperature of an individual exceeds a predetermined threshold temperature.
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公开(公告)号：US20250005373A1
公开(公告)日：2025-01-02
申请号：US18749887
申请日：2024-06-21
Applicant: NEC Laboratories America, Inc.
Inventor： Junxiang Wang , Wei Cheng , LuAn Tang , Haifeng Chen
IPC: G06N3/096 , G06N3/0455 , G06N3/084
Abstract: Systems and methods are provided for adapting a model trained from multiple source time-series domains to a target time-series domain, including integrating input data from source time-series domains to pretrain a model with a set of domain-invariant representations, fine-tuning the model by learning prompts specific to each source time-series domain using data from the source time-series domains, and applying instance normalization and segmenting the time-series data into subseries-level normalized patches for the target time-series domain. The normalized patches are fed into a transformer encoder to generate high-dimensional representations of the normalized patches, and a limited number of samples from the target time-series domain are utilized to learn the prompt specific to the target domain. Cosine similarity between the prompt of the target domain and the prompts of source domains is calculated to identify a nearest neighbor prompt, which is utilized for model prediction in the target time-series domain.
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公开(公告)号：US20240419801A1
公开(公告)日：2024-12-19
申请号：US18731845
申请日：2024-06-03
Applicant: NEC Laboratories America, Inc.
Inventor： Wei Cheng , Xianjun Yang , Haifeng Chen
Abstract: Systems and methods for detecting artificial intelligence (AI) generated computer code. Lines of code can be masked from a candidate code to obtain perturbed codes. Missing code can be generated from the perturbed codes by employing an AI code generator model to obtain machine-filled codes. Probabilities of the candidate code probability and the machine-filled codes as AI-generated can be predicted by employing a surrogate model. The candidate code can be distinguished as AI-generated by comparing the probabilities against a detection threshold to obtain detection results.
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Patent Agency Ranking
公开(公告)号：US20240405890A1
公开(公告)日：2024-12-05
申请号：US18731283
申请日：2024-06-01
Applicant: NEC Laboratories America, Inc.
Inventor： Wataru KOHNO , Jian FANG , Shuji MURAKAMI , Ting WANG
Abstract: Disclosed are systems, methods, and structures employing a distributed fiber optic sensing (DFOS)/distributed acoustic sensing (DAS) system operating as an underwater wireless acoustic antenna in which an optical fiber sensor cable serves as a distributed acoustic antenna that receives multiple data from transmitters using an optical interrogator. Sensing channels, in the form of acoustic-antenna-array systems are located near transmitters taking advantage of the fact that these channels are automatically synchronized. The sensing channels may also be manually selected from software controlling the interrogator, and acoustic repeaters may be introduced as one data transmission mechanism. Acoustic tata transmission using an orthogonal frequency division multiplexed (OFDM) signal is demonstrated as a cure for data transmission using a DAS, such as multipath fading impacting bit error rate (BER) and limitations in acoustic transmission bandwidth.
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公开(公告)号：US20240403137A1
公开(公告)日：2024-12-05
申请号：US18678121
申请日：2024-05-30
Applicant: NEC Laboratories America, Inc.
Inventor： Kunal G. Rao , Giuseppe Coviello , Ciro Giuseppe DeVita , Gennaro Mellone , Yuang Jiang , Wang-pin Hsiung , Srimat Chakradhar
IPC: G06F9/50
Abstract: Systems and methods are provided for dynamically optimizing microservice placement in a distributed edge and cloud computing environment, including receiving application specifications that include telemetry data collection methods, placement rules, and modes of operation, validating the received application specifications to ensure completeness and correctness, and composing an application graph where vertices represent microservices and edges represent connections between the microservices. Availability of resources specified in the application graph is checked, and the microservices are deployed according to initial placement rules. Telemetry data from the deployed microservices and underlying infrastructure is collected and evaluated against the placement rules, and the placement of microservices is dynamically adjusted responsive to a determination that current microservice placement is suboptimal based on the evaluating of the collected telemetry data.
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公开(公告)号：US12154024B2
公开(公告)日：2024-11-26
申请号：US17398476
申请日：2021-08-10
Applicant: NEC Laboratories America, Inc.
Inventor： Bo Zong , Haifeng Chen , Zhen Wang
IPC: G06F40/30 , G06F18/211 , G06F18/213 , G06N3/048 , G06N5/02 , G06F16/33
Abstract: A method trains a recursive reasoning unit (RRU). The method receives a graph for a set of words and a matrix for a different set of words. The graph maps each word in the set of words to a node with node label and indicates a relation between adjacent nodes by an edge with edge label. The matrix indicates word co-occurrence frequency of the different set of words. The method discovers, by the RRU, reasoning paths from the graph for word pairs by mapping word pairs from the set of words into a source word and a destination word and finding the reasoning paths therebetween. The method predicts word co-occurrence frequency using the reasoning paths. The method updates, responsive to the word co-occurrence frequency, model parameters of the RRU until a difference between a predicted and true word occurrence are less than a threshold amount to provide a trained RRU.
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公开(公告)号：US20240379234A1
公开(公告)日：2024-11-14
申请号：US18659506
申请日：2024-05-09
Applicant: NEC Laboratories America, Inc.
Abstract: Methods and systems for visual question answering include decomposing an initial question to generate a sub-question. The initial question and an image are applied to a visual question answering model to generate an answer and a confidence score. It is determined that the confidence score is below a threshold value. The sub-question is applied to the visual question answering model, responsive to the determination that the confidence score is below a threshold value, to generate a final answer.
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公开(公告)号：US20240351582A1
公开(公告)日：2024-10-24
申请号：US18639307
申请日：2024-04-18
Applicant: NEC Laboratories America, Inc.
Inventor： Buyu Liu , Sriram Nochur Narayanan , Bingbing Zhuang , Yumin Suh
IPC: B60W30/09 , B60W30/095 , B60W50/00 , G06V20/56
CPC classification number: B60W30/09 , B60W30/0956 , B60W50/0097 , G06V20/588
Abstract: Methods and systems for trajectory prediction include encoding trajectories of agents in a scene from past images of the scene. Lane centerlines are encoded for agents in the scene. The agents in the scene are encoded using the encoded trajectories and the encoded lane centerlines. A hypercolumn trajectory is decoded from the encoded agents to generate predicted trajectories for the agents. A vehicle is automatically operated responsive to the predicted trajectories.
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