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Weight optimization processing method and device for sample features

A technology of sample characteristics and processing methods, applied in the computer field, can solve the problems of not being true and accurate enough, and not representing individualized needs, etc.

Inactive Publication Date: 2020-01-17
KE COM (BEIJING) TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of these situations, the weights determined by the existing expert experience cannot represent individual needs, and they are not true and accurate enough.

Method used

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  • Weight optimization processing method and device for sample features
  • Weight optimization processing method and device for sample features
  • Weight optimization processing method and device for sample features

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Embodiment Construction

[0054] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0055] figure 1 It shows a schematic flowchart of a weight optimization processing method for sample features provided in this embodiment, including:

[0056] S101. Obtain a sample to be optimized, and determine a positive sample and a negative sample of the sample to be optimized according to user feedback or behavior.

[0057] Among them, the samples to be optimized are samples that need to be weight optimized.

[0058]When providing data to users, users use browsers or mobile phone programs to retrieve data, and after users input requirements, they can obtain the data recommended by the system by default. Then the data actually displayed to the user can be consi...

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Abstract

The embodiment of the invention discloses a sample feature weight optimization processing method and device. The method comprises the following steps: obtaining a to-be-optimized sample, and determining a positive sample and a negative sample of the to-be-optimized sample according to the feedback or behavior of a user; calculating positive sample features, and calculating the internal similarityof each feature in the positive sample and the internal similarity of each feature in the negative sample according to the positive sample features; calculating the weight offset of each feature according to the internal similarity of the positive sample and the internal similarity of the negative sample; and optimizing the weight of each feature according to the weight offset of each feature. According to the method, positive and negative samples are distinguished, the internal similarity of each feature in the positive and negative samples is calculated respectively, and finally, the weightof each feature is optimized by calculating the weight offset, so that a more real and accurate weight can be obtained, Meanwhile, the personalized requirements of users can be better reflected.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a weight optimization processing method and device for sample features. Background technique [0002] Weight refers to the importance of a certain factor or indicator relative to a certain thing. It is different from the general proportion. It not only reflects the percentage of a certain factor or indicator, but emphasizes the relative importance of a factor or indicator. Tend to contribution or importance. Existing weight determination methods are usually determined based on expert experience, which is commonly known as "beat weight". The weight determined by expert experience has personal tendency, cannot objectively reflect the actual law, and cannot represent the true importance. [0003] In house source recommendation, factors such as unit price and area usually have a higher weight. Generally speaking, it is more objective to have a larger unit price weight, but facto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06N20/00
CPCG06N20/00G06F18/22G06F18/21347
Inventor 董骐瑞
Owner KE COM (BEIJING) TECHNOLOGY CO LTD
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