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Cold start recommendation method and device, computer equipment and storage medium

A recommendation method and cold start technology, applied in the field of big data, can solve the problems of cold start recommendation privacy leakage and other issues

Active Publication Date: 2021-03-19
PING AN TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of the present application is to propose a cold start recommendation method, device, computer equipment and storage medium, aiming at solving the current technical problem of privacy leakage during cold start recommendation

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  • Cold start recommendation method and device, computer equipment and storage medium
  • Cold start recommendation method and device, computer equipment and storage medium
  • Cold start recommendation method and device, computer equipment and storage medium

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Embodiment Construction

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein in the description of the application are only to describe specific embodiments The purpose is not to limit the present application; the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the description of the above 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.

[0046] 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. The occurrenc...

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Abstract

The embodiment of the invention belongs to the technical field of big data, and relates to a cold start recommendation method and related equipment, which can be applied to the field of intelligent security and protection, and comprises the following steps: when a first key sent by a first server is received, calculating a first scoring parameter of a local server; when first encrypted data sent by a second server is received, calculating a first encryption similarity according to the first scoring parameter and the first encrypted data, and decrypting the first encryption similarity accordingto the first key to obtain a first decryption similarity; sending the first decryption similarity to a first server; and when the total similarity sent by the first server is received, generating anarticle recommendation table of the target user according to the total similarity. In addition, the invention also relates to a blockchain technology, and the article recommendation table can be stored in a blockchain. According to the invention, protection of user privacy information during cold start recommendation is realized.

Description

technical field [0001] The present application relates to the technical field of big data, and in particular to a cold start recommendation method, device, computer equipment and storage medium. Background technique [0002] With the rapid development of the Internet and e-commerce, the recommendation system has become an important tool for enterprises to improve their market competitiveness. Among them, collaborative filtering is the most famous recommendation algorithm. However, collaborative filtering often faces the problem of cold start. When a new user joins the system, the user does not have historical rating data in the system, and the similarity between users cannot be calculated according to the traditional algorithm, so it cannot be recommended. [0003] Existing cold starts often need to combine multi-party data, that is, use the user's historical information in other scenarios to solve the cold start problem, but this will involve privacy issues, and different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G06F21/60
CPCH04L63/0428H04L63/06G06F21/602
Inventor 王健宗李泽远何安珣
Owner PING AN TECH (SHENZHEN) CO LTD
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