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Feature processing method and system

A processing method and processing system technology, applied in the field of feature processing methods and systems, can solve problems such as poor practical effects, and achieve the effect of ensuring performance and efficiency

Pending Publication Date: 2021-12-07
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some specific business scenarios, such as discovering problems in production through machine learning, some abnormal values ​​of features may be the specific manifestation of the problem. If they are directly eliminated, the model may have a good performance. Learning effect, but poor practical effect

Method used

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  • Feature processing method and system
  • Feature processing method and system
  • Feature processing method and system

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Embodiment Construction

[0025] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0026] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0028] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The invention discloses a feature processing method and system, and relates to the field of artificial intelligence. The method comprises the following steps: acquiring an abnormal feature whose association degree with a target is greater than a threshold; according to the data attribute of the abnormal feature, converting the value distribution of the abnormal feature to obtain newly added feature data; and taking the newly added feature data as model training data. According to the invention, the performance and efficiency of artificial intelligence model establishment are ensured, and a basis is provided for problem analysis and positioning.

Description

technical field [0001] The present disclosure relates to the field of artificial intelligence, and in particular to a feature processing method and system. Background technique [0002] Artificial intelligence technology has been widely used in various industries. Artificial intelligence can be simply divided into two categories: machine learning and deep learning. Feature engineering is a key step in the machine learning process, which mainly includes four steps: data preprocessing, feature selection, model selection, and performance evaluation. [0003] A feature is a description of each dimension of the data. In the process of data preprocessing, it is necessary to collect and extract multi-dimensional data features suitable for machine learning tasks as much as possible, make up for missing feature values, and filter or repair abnormal feature values. In the feature selection process, it is necessary to select those features that are highly relevant to the task and fi...

Claims

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Application Information

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IPC IPC(8): G06K9/62
CPCG06F18/2415
Inventor 刘伟李凯李昆仑张敏胡晓娟李星
Owner CHINA TELECOM CORP LTD
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