Model learning method, device and system based on private data protection

A technology of private data and learning methods, applied in the field of data processing, can solve the problems of financial data training models, lack of budget for building and maintaining models, and limited input costs for small and medium-sized financial institutions, to ensure fairness, privacy and security. The effect of sexual security

Active Publication Date: 2020-02-14
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Abstract
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Problems solved by technology

At present, small and medium-sized financial institutions are unable to build their own deep learning models to improve services. There are two main reasons for this problem: First, small and medium-sized financial institutions have limited investment costs and do not have the budget to

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  • Model learning method, device and system based on private data protection
  • Model learning method, device and system based on private data protection
  • Model learning method, device and system based on private data protection

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0038] As mentioned earlier, currently small and medium-sized institutions are limited by their own size and cannot build and train their own deep learning models, resulting in the lack of ways to improve their service quality. In response to this problem, this document aims to provide a model learning solution based on alliance implementation, which can popula...

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Abstract

The embodiment of the invention provides a model learning method, device and system based on private data protection. The method comprises the step that non-centralized computing platform member objects in the alliance send model parameters of a learning model which is trained locally to centralized computing platform member objects in the alliance; model parameters of learning models of at leasttwo member objects are centrally calculated in the alliance obtained by the platform member objects through multi-party security calculation, and determining target model parameters; the centralized computing platform member objects send the target model parameters to non-centralized computing platform member objects in the alliance; and the member objects of the non-centralized computing platformin the alliance adjust the local learning model based on the target model parameters.

Description

technical field [0001] This document relates to the technical field of data processing, in particular to a model learning method, device and system based on private data protection. Background technique [0002] With the development of artificial intelligence, deep learning models have been used more and more widely due to their ability to process information mechanized. In the financial field, deep learning models can analyze financial data to understand users more deeply, and are suitable for application scenarios such as financial marketing and financial risk control. At present, small and medium-sized financial institutions are unable to build their own deep learning models to improve services. There are two main reasons for this problem: First, small and medium-sized financial institutions have limited investment costs and do not have the budget to build and maintain models. Second, financial data is heavily skewed in large financial institutions. Due to the sensitiv...

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Application Information

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IPC IPC(8): G06F21/62G06Q40/00G06N20/00
CPCG06F21/6245G06N20/00G06Q40/00
Inventor 刘磊
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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