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公开(公告)号:US20250148281A1
公开(公告)日:2025-05-08
申请号:US18909467
申请日:2024-10-08
Applicant: NEC Laboratories America, Inc.
Inventor: Shaobo Han , Tingfeng Li , Renqiang Min
IPC: G06N3/08
Abstract: Systems and methods include collecting real-world distributed-optic fiber sensing (DFOS) sensing data from a target environment as a reference dataset. A synthetic sketch dataset is constructed as a parameterized computer program. A synthetic waterfall is generated from a deep neural network as an image translator from the sketch waterfall with nonlinear distortions and background noises added. Parameters are optimized for generating the synthetic waterfall under a loss function where the loss function encodes a generalization performance on the real-world dataset and encodes granularities from a sensing process and uncontrollable factors.
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公开(公告)号:US20250053774A1
公开(公告)日:2025-02-13
申请号:US18776926
申请日:2024-07-18
Applicant: NEC Laboratories America, Inc.
Inventor: Christopher Malon , Christopher A White , Renqiang Min , Iain Melvin
Abstract: Methods and systems for answering a query include generating first tokens in response to an input query using a language model, the first tokens including a retrieval rule. A retrieval rule is used to search for information to generate dynamic tokens. The retrieval rule in the first tokens is replaced with the dynamic tokens to generate a dynamic partial response. Second tokens are generated in response to the input query. The second tokens are appended to the dynamic partial response to generate an output responsive to the input query.
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公开(公告)号:US12045727B2
公开(公告)日:2024-07-23
申请号:US17115464
申请日:2020-12-08
Applicant: NEC Laboratories America, Inc.
Inventor: Renqiang Min , Christopher Malon , Pengyu Cheng
IPC: G06N3/088 , G06F40/20 , G06N3/02 , G06N3/0442 , G06N3/08 , G06N3/082 , G06N3/086 , G10L15/06 , G10L15/16 , G10L15/22
CPC classification number: G06N3/088 , G06F40/20 , G06N3/0442 , G06N3/08 , G06N3/086 , G10L15/063 , G10L15/16 , G10L15/22 , G06N3/02 , G06N3/082
Abstract: A computer-implemented method is provided for disentangled data generation. The method includes accessing, by a bidirectional Long Short-Term Memory (LSTM) with a multi-head attention mechanism, a dataset including a plurality of pairs each formed from a given one of a plurality of input text structures and given one of a plurality of style labels for the plurality of input text structures. The method further includes training the bidirectional LSTM as an encoder to disentangle a sequential text input into disentangled representations comprising a content embedding and a style embedding based on a subset of the dataset. The method also includes training a unidirectional LSTM as a decoder to generate a next text structure prediction for the sequential text input based on previously generated text structure information and a current word, from a disentangled representation with the content embedding and the style embedding.
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公开(公告)号:US20240087196A1
公开(公告)日:2024-03-14
申请号:US18463784
申请日:2023-09-08
Applicant: NEC Laboratories America, Inc.
Inventor: Renqiang Min , Kai Li , Shaobo Han , Hans Peter Graf , Changhao Shi
IPC: G06T11/60 , G06T9/00 , G06V10/764 , G06V10/774
CPC classification number: G06T11/60 , G06T9/002 , G06V10/764 , G06V10/774
Abstract: Methods and systems for image generation include generating a latent representation of an image, modifying the latent representation of the image based on a trained attribute classifier and a specified attribute input, and decoding the modified latent representation to generate an output image that matches the specified attribute input.
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公开(公告)号:US20240071572A1
公开(公告)日:2024-02-29
申请号:US18471667
申请日:2023-09-21
Applicant: NEC Laboratories America, Inc.
Inventor: Renqiang Min , Hans Peter Graf , Ziqi Chen
Abstract: A system for binding peptide search for immunotherapy is presented. The system includes employing a deep neural network to predict a peptide presentation given Major Histocompatibility Complex allele sequences and peptide sequences, training a Variational Autoencoder (VAE) to reconstruct peptides by converting the peptide sequences into continuous embedding vectors, running a Monte Carlo Tree Search to generate a first set of positive peptide vaccine candidates, running a Bayesian Optimization search with the trained VAE and a Backpropagation search with the trained VAE to generate a second set of positive peptide vaccine candidates, using a sampling from a Position Weight Matrix (sPWM) to generate a third set of positive peptide vaccine candidates, screening and merging the first, second, and third sets of positive peptide vaccine candidates, and outputting qualified peptides for immunotherapy from the screened and merged sets of positive peptide vaccine candidates.
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公开(公告)号:US20240054782A1
公开(公告)日:2024-02-15
申请号:US18366931
申请日:2023-08-08
Applicant: NEC Laboratories America, Inc.
Inventor: Kai Li , Renqiang Min , Haifeng Xia
IPC: G06V20/40 , G06V10/774
CPC classification number: G06V20/41 , G06V20/46 , G06V10/774 , G06V20/48
Abstract: Methods and systems for video processing include enriching an input video feature from an input video frame set using a meta-action bank video sub-actions to generate enriched features. Reinforced image representation is performed using reinforcement learning to compare support image frames and query image frames and determine an importance of the input video frame. A classification is performed on the input video frame based on the importance and the enriched features to generate a label. An action is performed responsive to the generated label.
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公开(公告)号:US20240046606A1
公开(公告)日:2024-02-08
申请号:US18363175
申请日:2023-08-01
Applicant: NEC Laboratories America, Inc.
Inventor: Kai Li , Renqiang Min , Deep Patel , Erik Kruus , Xin Hu
IPC: G06V10/62 , G06V20/40 , G06V10/82 , G06V10/774 , G06V10/776 , G06V10/77
CPC classification number: G06V10/62 , G06V20/41 , G06V20/46 , G06V10/82 , G06V10/774 , G06V10/776 , G06V10/7715
Abstract: Methods and systems for temporal action localization include processing a video stream to identify an action and a start time and a stop time for the action using a neural network model that separately processes information of appearance and motion modalities from the video stream using transformer branches that include a self-attention and a cross-attention between the appearance and motion modalities. An action is performed responsive to the identified action.
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公开(公告)号:US20220327425A1
公开(公告)日:2022-10-13
申请号:US17711658
申请日:2022-04-01
Applicant: NEC Laboratories America, Inc.
Inventor: Renqiang Min , Hans Peter Graf , Ligong Han
IPC: G06N20/00
Abstract: Methods and systems for training a machine learning model include embedding a state, including a peptide sequence and a protein, as a vector. An action, including a modification to an amino acid in the peptide sequence, is predicted using a presentation score of the peptide sequence by the protein as a reward. A mutation policy model is trained, using the state and the reward, to generate modifications that increase the presentation score.
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公开(公告)号:US11170256B2
公开(公告)日:2021-11-09
申请号:US16577337
申请日:2019-09-20
Applicant: NEC Laboratories America, Inc.
Inventor: Renqiang Min , Bing Bai , Yogesh Balaji
IPC: G06K9/00 , G06K9/62 , G06N3/08 , G06N3/04 , G06F40/279
Abstract: Systems and methods for processing video are provided. The method includes receiving a text-based description of active scenes and representing the text-based description as a word embedding matrix. The method includes using a text encoder implemented by neural network to output frame level textual representation and video level representation of the word embedding matrix. The method also includes generating, by a shared generator, frame by frame video based on the frame level textual representation, the video level representation and noise vectors. A frame level and a video level convolutional filter of a video discriminator are generated to classify frames and video of the frame by frame video as true or false. The method also includes training a conditional video generator that includes the text encoder, the video discriminator, and the shared generator in a generative adversarial network to convergence.
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公开(公告)号:US20200250304A1
公开(公告)日:2020-08-06
申请号:US16778213
申请日:2020-01-31
Applicant: NEC Laboratories America, Inc.
Inventor: Erik Kruus , Renqiang Min , Yao Li
Abstract: Systems and methods for detecting adversarial examples are provided. The method includes generating encoder direct output by projecting, via an encoder, input data items to a low-dimensional embedding vector of reduced dimensionality with respect to the one or more input data items to form a low-dimensional embedding space. The method includes regularizing the low-dimensional embedding space via a training procedure such that the input data items produce embedding space vectors whose global distribution is expected to follow a simple prior distribution. The method also includes identifying whether each of the input data items is an adversarial or unnatural input. The method further includes classifying, during the training procedure, those input data items which have not been identified as adversarial or unnatural into one of multiple classes.
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