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公开(公告)号:US20210295173A1
公开(公告)日:2021-09-23
申请号:US17021686
申请日:2020-09-15
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yoo Jin CHOI , Jihwan CHOI , Mostafa EL-KHAMY , Jungwon LEE
Abstract: A method and system are provided. The method includes receiving, at a generator, a random input, producing, at the generator, a synthetic output of the received random input, receiving, at a teacher network, the synthetic output, receiving, at a student network, the synthetic output, minimizing a maximum of a distance between an output of the teacher network and an output of the student network, and constraining the generator.
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公开(公告)号:US20200285894A1
公开(公告)日:2020-09-10
申请号:US16452005
申请日:2019-06-25
Applicant: Samsung Electronics Co., Ltd.
Inventor: Mostafa EL-KHAMY , Jungwon LEE , Yoo Jin CHOI , Haoyu REN
Abstract: A method and apparatus for providing a rotational invariant neural network is herein disclosed. According to one embodiment, a method includes receiving a first input of an image in a first orientation and training a kernel to be symmetric such that an output corresponding to the first input is the same as an output corresponding to a second input of the image in a second orientation.
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13.
公开(公告)号:US20180307897A1
公开(公告)日:2018-10-25
申请号:US16024823
申请日:2018-06-30
Applicant: Samsung Electronics Co., Ltd.
Inventor: Mostafa EL-KHAMY , Arvind YEDLA , Marcel NASSAR , Jungwon LEE
IPC: G06K9/00
CPC classification number: G06K9/00268 , G06K9/00228 , G06T7/70 , G06T2207/20081 , G06T2207/20084 , G06T2207/30201
Abstract: A system to recognize objects in an image includes an object detection network outputs a first hierarchical-calculated feature for a detected object. A face alignment regression network determines a regression loss for alignment parameters based on the first hierarchical-calculated feature. A detection box regression network determines a regression loss for detected boxes based on the first hierarchical-calculated feature. The object detection network further includes a weighted loss generator to generate a weighted loss for the first hierarchical-calculated feature, the regression loss for the alignment parameters and the regression loss of the detected boxes. A backpropagator backpropagates the generated weighted loss. A grouping network forms, based on the first hierarchical-calculated feature, the regression loss for the alignment parameters and the bounding box regression loss, at least one of a box grouping, an alignment parameter grouping, and a non-maximum suppression of the alignment parameters and the detected boxes.
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公开(公告)号:US20180107925A1
公开(公告)日:2018-04-19
申请号:US15433531
申请日:2017-02-15
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yoo Jin CHOI , Mostafa EL-KHAMY , Jungwon LEE
Abstract: Apparatuses and methods of manufacturing same, systems, and methods for performing network parameter quantization in deep neural networks are described. In one aspect, diagonals of a second-order partial derivative matrix (a Hessian matrix) of a loss function of network parameters of a neural network are determined and then used to weight (Hessian-weighting) the network parameters as part of quantizing the network parameters. In another aspect, the neural network is trained using first and second moment estimates of gradients of the network parameters and then the second moment estimates are used to weight the network parameters as part of quantizing the network parameters. In yet another aspect, network parameter quantization is performed by using an entropy-constrained scalar quantization (ECSQ) iterative algorithm. In yet another aspect, network parameter quantization is performed by quantizing the network parameters of all layers of a deep neural network together at once.
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15.
公开(公告)号:US20240122519A1
公开(公告)日:2024-04-18
申请号:US18458268
申请日:2023-08-30
Applicant: Samsung Electronics Co., Ltd.
Inventor: Mostafa EL-KHAMY , Khoung VO , Yoojin CHOI
CPC classification number: A61B5/327 , A61B5/02416 , A61B5/352 , A61B5/361
Abstract: A system and a method are disclosed for AFib detection using ECG signals generated from monitored PPG signals. A method includes receiving PPG signals of a user measured by a PPG sensor; translating the measured PPG signals into ECG signals using a dynamic model; analyzing the translated ECG signals using an AFib detection model, which is trained on measured ECG signals for AFib detection; and providing the analyzed AFib detection results to the user.
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16.
公开(公告)号:US20230244951A1
公开(公告)日:2023-08-03
申请号:US18099631
申请日:2023-01-20
Applicant: Samsung Electronics Co., Ltd. , Duke University
Inventor: Yoo Jin CHOI , Mostafa EL-KHAMY , Sijia WANG , Ricardo Henao GIRALDO , Junya CHEN
Abstract: Disclosed is a method and apparatus for dynamic models to identify similar tasks when no task identifier is provided during the training phase in continual learning (CL). The method includes maintaining a memory comprising one or more previously learned tasks, determining, in response to receiving a new task, one of more similarities between at least one previously learned task and the new task, generating, based on the one or more similarities determined and a previously used task-specific encoder corresponding to the at least one previously learned task, a test error value for classifying the new task, and applying the previously used task-specific encoder to the new task based on the generated test error value.
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17.
公开(公告)号:US20220301296A1
公开(公告)日:2022-09-22
申请号:US17674832
申请日:2022-02-17
Applicant: Samsung Electronics Co., Ltd.
Inventor: Behnam BABAGHOLAMI MOHAMADABADI , Qingfeng LIU , Mostafa EL-KHAMY , Jungwon LEE
IPC: G06V10/82 , G06N5/04 , G06V10/778 , G06V10/776 , G06V10/774
Abstract: A system and a method to train a neural network are disclosed. A first image is weakly and strongly augmented. The first image, the weakly and strongly augmented first images are input into a feature extractor to obtain augmented features. Each weakly augmented first image is input to a corresponding first expert head to determine a supervised loss for each weakly augmented first image. Each strongly augmented first image is input to a corresponding second expert head to determine a diversity loss for each strongly augmented first image. The feature extractor is trained to minimize the supervised loss on weakly augmented first images and to minimize a multi-expert consensus loss on strongly augmented first images. Each first expert head is trained to minimize the supervised loss for each weakly augmented first image, and each second expert head is trained to minimize the diversity loss for each strongly augmented first image.
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公开(公告)号:US20220093116A1
公开(公告)日:2022-03-24
申请号:US17543057
申请日:2021-12-06
Applicant: Samsung Electronics Co., Ltd.
Inventor: JaeYoung KIM , Mostafa EL-KHAMY , Jungwon LEE
IPC: G10L21/0264 , G10L21/0232
Abstract: A method and system for providing Gaussian weighted self-attention for speech enhancement are herein provided. According to one embodiment, the method includes receiving an input noise signal, generating a score matrix based on the received input noise signal, and applying a Gaussian weighted function to the generated score matrix.
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公开(公告)号:US20210374608A1
公开(公告)日:2021-12-02
申请号:US17148557
申请日:2021-01-13
Applicant: Samsung Electronics Co., Ltd.
Inventor: Mostafa EL-KHAMY , Jungwon LEE , Weituo HAO , Lawrence CARIN , Nikhil MEHTA , Kevin J. LIANG
Abstract: A federated machine-learning system includes a global server and client devices. The server receives updates of weight factor dictionaries and factor strengths vectors from the clients, and generates a globally updated weight factor dictionary and a globally updated factor strengths vector. A client device selects a group of parameters from a global group of parameters, and trains a model using a dataset of the client device and the group of selected parameters. The client device sends to the server a client-updated weight factor dictionary and a client-updated factor strengths vector. The client device receives the globally updated weight factor dictionary and the globally updated factor strengths vector, and retrains the model using the dataset of the client device, the group of parameters selected by the client device, and the globally updated weight factor dictionary and the globally updated factor strengths vector.
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20.
公开(公告)号:US20210312591A1
公开(公告)日:2021-10-07
申请号:US17133785
申请日:2020-12-24
Applicant: Samsung Electronics Co., Ltd.
Inventor: Haoyu REN , Amin KHERADMAND , Mostafa EL-KHAMY , Shuangquan WANG , Dongwoon BAI , Jungwon LEE
Abstract: A method and apparatus are provided. The method includes generating a dataset for real-world super resolution (SR), training a first generative adversarial network (GAN), training a second GAN, and fusing an output of the first GAN and an output of the second GAN.
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