PARTIALLY-OBSERVED SEQUENTIAL VARIATIONAL AUTO ENCODER

    公开(公告)号:WO2022005626A1

    公开(公告)日:2022-01-06

    申请号:PCT/US2021/032129

    申请日:2021-05-13

    Abstract: A computer-implemented method of training a model comprising a sequence of stages, each stage in the sequence comprises: a VAE comprising a respective first encoder arranged to encode a respective subset of the real-world features into a respective latent space representation, and a respective first decoder arranged to decode from the respective latent space representation to a respective decoded version of the respective set of real- world features; at least each but the last stage in the sequence comprises: a respective second decoder arranged to decode from the respective latent space representation to predict one or more respective actions; and each successive stage in the sequence following the first stage, each succeeding a respective preceding stage in the sequence, further comprises: a sequential network arranged to transform from the latent representation from the preceding stage to the latent space representation of the successive stage.

    SECURE EXECUTION OF A MACHINE LEARNING NETWORK

    公开(公告)号:WO2022005616A1

    公开(公告)日:2022-01-06

    申请号:PCT/US2021/031472

    申请日:2021-05-10

    Abstract: According to implementations of the subject matter described herein, there is provided a solution for secure execution of a machine learning network. An operation of a first network layer of a machine learning network is executed in an uTEE of a computing device based on an input of the first network layer and a first set of modified parameter values, to obtain a first error intermediate output. The modified parameter values are determined by modifying at least one subset of parameter values of the first network layer with first secret data. A first corrected intermediate output is determined in a TEE of the computing device by modifying the first error intermediate output at least based on the input and first secret data. A network output is determined based on the first corrected intermediate output. In this way, it is possible to protect the confidentiality of the machine learning network.

    特征点跟踪训练及跟踪方法、装置、电子设备及存储介质

    公开(公告)号:WO2021253686A1

    公开(公告)日:2021-12-23

    申请号:PCT/CN2020/119545

    申请日:2020-09-30

    Abstract: 本公开提供了一种特征点跟踪训练及跟踪方法、装置、电子设备及存储介质,该跟踪训练方法包括:获取样本视频中的相邻两帧,将一帧作为初始帧,将另一帧作为目标帧;对初始帧进行特征点检测,得到特征点坐标;通过孪生的特征提取神经网络得到初始帧对应的特征张量和目标帧对应的特征张量;从初始帧对应的特征张量中确定特征点坐标对应的特征向量,并将特征向量与目标帧对应的特征张量进行局部匹配,得到匹配得分图;将匹配得分图输入特征点跟踪神经网络,得到特征点坐标对应的预测坐标;确定预测坐标与匹配得分图中最高得分对应坐标的损失值;根据损失值,对网络参数进行调整,循环执行上述步骤,直至损失值收敛。本公开减少了对数据标注的依赖。

    DEVICE AND METHOD FOR SECURE PRIVATE DATA AGGREGATION

    公开(公告)号:WO2021198704A1

    公开(公告)日:2021-10-07

    申请号:PCT/GB2021/050828

    申请日:2021-04-01

    Applicant: HAZY LIMITED

    Abstract: A computing system for enabling the analysis of multiple raw data sets whilst protecting the privacy of information within the raw data sets, the system comprising a plurality of synthetic data generators and a data hub. Each synthetic data generator is configured to: access a corresponding raw data set stored in a corresponding one of a plurality of raw data stores; produce, based on the corresponding raw data set, a synthetic data generator model configured to generate a synthetic data set representative of the corresponding raw data set; and push synthetic information including at least one of the corresponding synthetic data set and the synthetic data generator model to the data hub. The data hub is configured to store the synthetic information received from the synthetic data generators for access by one or more clients for analysis. The system is configured such that the data hub cannot directly access the raw data sets and such that the synthetic data information can only be pushed from the synthetic data generators to the data hub.

    TRAINING AN ARTIFICIAL INTELLIGENCE MODULE FOR INDUSTRIAL APPLICATIONS

    公开(公告)号:WO2021197783A1

    公开(公告)日:2021-10-07

    申请号:PCT/EP2021/056099

    申请日:2021-03-10

    Applicant: ABB SCHWEIZ AG

    Abstract: A computer-implemented method of generating a training data set for training an artificial intelligence module (10), AI module, is provided. The method comprises providing, on a data storage (102), a first data set (12) and a second data set (14), wherein the first data set 5 includes one or more first data elements (13) indicative of a first operational condition of an industrial system, wherein the second data set includes one or more second data elements (15) indicative of a second operational condition of the industrial system, wherein the first operational condition substantially matches the second operational condition. The method further comprises determining a data transformation for transforming the one or more first 10 data elements (13) of the first data set (12) into the one or more second data elements (15) of the second data set (14), applying the determined data transformation to the one or more first data elements (13) of the first data set and/or to one or more further data elements of one or more further data sets, thereby generating a transformed data set, and generating a training data set for training the AI module (10) based on at least a part of the transformed 15 data set.

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