Text topic extraction method, system, device and storage medium
A text and subject technology, applied in the field of systems, equipment and storage media, text subject extraction methods, and can solve problems such as a large number of user data and user data leakage
Active Publication Date: 2022-07-12
PING AN TECH (SHENZHEN) CO LTD
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Problems solved by technology
[0003] This application provides a text topic extraction method, system, device, and storage medium to solve the problem that a large amount of user data is required when extracting text topics in the prior art, which may cause user data leakage
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[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this application; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only It is not intended to limit the application; the terms "comprising" and "having" and any variations thereof in the description and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.
[0058] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. T...
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The present application relates to the technical field of artificial intelligence, and discloses a text topic extraction method, system, device and storage medium, including the server sending a first matrix W to a plurality of first clients; the first client acquiring its own text feature matrix X k , and combine the first matrix W and the second matrix H k Perform training to obtain the updated first matrix W and upload it to the server; the server performs weighted average aggregation on the updated first matrix W to obtain the third matrix W t ; the server side converts the third matrix W t Send to multiple second clients for training, and get the fourth matrix W t+1 ; server side according to the third matrix W t and the fourth matrix W t+1 Make a judgment to get the fifth matrix W i , based on the fifth matrix W i The weights in , extract the text topics. This application also relates to blockchain technology, the third matrix W k And the updated matrix W data is stored in the blockchain. The present application realizes the extraction of text topics while protecting user data from being leaked.
Description
technical field [0001] The present application relates to the field of artificial intelligence technology, and in particular, to a method, system, device and storage medium for text topic extraction. Background technique [0002] With the continuous development of society, people pay more and more attention to the protection of privacy, and various countries have also promulgated various provisions to protect privacy data, such as the EU's GDPR (General Date Protection Regulation) and my country's The promulgated "Data Security Management Measures" (draft for comments), in the face of this situation, how to extract the subject of the document while protecting the user's data from being leaked. In the prior art, non-negative matrix decomposition technology is often used to decompose a large non-negative matrix into two small non-negative matrices, so as to extract the subject of a document in the field of natural language processing. However, it is necessary to obtain a large...
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IPC IPC(8): G06F40/216G06F40/289G06N3/04G06N3/08
CPCG06F40/216G06F40/289G06N3/084G06N3/045
Inventor 司世景王健宗
Owner PING AN TECH (SHENZHEN) CO LTD