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公开(公告)号:US20230306118A1
公开(公告)日:2023-09-28
申请号:US17655847
申请日:2022-03-22
CPC分类号: G06F21/577 , G06F21/552 , G06N3/0454 , G06F2221/033
摘要: A method, computer program, and computer system are provided for predicting and assessing risks on websites. Data corresponding to historical interactions of a user with one or more websites is accessed. A simulation of actions of the user is generated based on the accessed data, and actions of the user are simulated on a pre-defined target website based on the generated simulation of the actions of the user. Risks on the target website are identified based on simulating the actions of the user. The website is updated to mitigate the identified risks.
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公开(公告)号:US20240028947A1
公开(公告)日:2024-01-25
申请号:US17869095
申请日:2022-07-20
发明人: Giulio Zizzo , Ambrish Rawat , Naoise Holohan , Seshu Tirupathi
IPC分类号: G06N20/00
CPC分类号: G06N20/00
摘要: The present disclosure relates to a method comprising at training system iteratively training a machine learning algorithm using current training data. The current training data comprises a local dataset of a current task and a replay dataset and may be updated for a next iteration as follows. A training dataset may be received. If the training dataset is not s shared dataset and its task is different from the current task: information representing the local dataset may be shared with other training systems, the local dataset may be added to the replay dataset, and the received training dataset may be used as the local dataset for a next iteration. In case the task is the current task: the received training dataset may be added to the local dataset. If the training dataset is a shared dataset, the received training dataset may be added to the replay dataset.
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公开(公告)号:US20240193428A1
公开(公告)日:2024-06-13
申请号:US18063813
申请日:2022-12-09
发明人: Ambrish Rawat , Killian Levacher , Giulio Zizzo , Ngoc Minh Tran
摘要: A method, computer system, and computer program product are provided for training a federated generative adversarial network (GAN) using private data. The method is carried out at an aggregator system having a generator and a discriminator, wherein the aggregator system is in communication with multiple participant systems each having a local feature extractor and a local discriminator. The method includes: receiving, from a feature extractor at a participant system, a set of features for input to the discriminator at the aggregator system, wherein the features include features extracted from private data that is private to the participant system; and receiving, from one or more local discriminators of the participant systems, discriminator parameter updates to update the discriminator at the aggregator system, wherein the local discriminators are trained at the participant systems.
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公开(公告)号:US20240291633A1
公开(公告)日:2024-08-29
申请号:US18113219
申请日:2023-02-23
发明人: Giulio Zizzo , Stefano Braghin , Ambrish Rawat , Mark Purcell
摘要: A computer-implemented method, system and computer program product for verifying the trustworthiness of an aggregation scheme utilized by an aggregator in the federated learning technique. A bit mask is received from each client used for training a machine learning algorithm using the federated learning technique. Such a bit mask contains values of ones and zeros, where a value of one indicates that the updated parameter of the global model corresponds to a parameter used by the local model trained on the client and a value of zero indicates that is not the case. These bit masks, which are encrypted, may then be combined using a homomorphic additive encryption scheme into a mask containing a matrix of values. If the mask contains a matrix of values of only the value of one, then the aggregator is deemed to be trustworthy. Otherwise, the aggregator is deemed to be untrustworthy.
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公开(公告)号:US20240249018A1
公开(公告)日:2024-07-25
申请号:US18158299
申请日:2023-01-23
发明人: Ambrish Rawat , Naoise Holohan , Heiko H. Ludwig , Ehsan Degan , Nathalie Baracaldo Angel , Alan Jonathan King , Swanand Ravindra Kadhe , Yi Zhou , Keith Coleman Houck , Mark Purcell , Giulio Zizzo , Nir Drucker , Hayim Shaul , Eyal Kushnir , Lam Minh Nguyen
IPC分类号: G06F21/62
CPC分类号: G06F21/6245 , G06F21/6227
摘要: One or more systems, devices, computer program products and/or computer-implemented methods of use provided herein relate to a process for privacy-enhanced machine learning and inference. A system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components can comprise a processing component that generates an access rule that modifies access to first data of a graph database, wherein the first data comprises first party information identified as private, a sampling component that executes a random walk for sampling a first graph of the graph database while employing the access rule, wherein the first graph comprises the first data, and an inference component that, based on the sampling, generates a prediction in response to a query, wherein the inference component avoids directly exposing the first party information in the prediction.
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