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Retrieval method and device, electronic equipment and computer storage medium

A medium and storage technology, applied in the field of Internet services, can solve problems such as unreasonable ranking, and achieve the effect of reasonable ranking, reducing the degree of influence, and increasing the influence.

Pending Publication Date: 2022-01-07
SANGFOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since word frequency calculation adopts a direct linear multiplication method, it tends to give higher scores to high-frequency words, which leads to the results returned when users input both high-frequency words and low-frequency words at the same time. They still focus on cases containing high-frequency words. It is easy to cause unreasonable ranking

Method used

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  • Retrieval method and device, electronic equipment and computer storage medium
  • Retrieval method and device, electronic equipment and computer storage medium
  • Retrieval method and device, electronic equipment and computer storage medium

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the invention will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0020] In the following description, references to "some embodiments" describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or a different subset of all possible embodiments, and Can be combined with each other without conflict.

[0021] In the following description, the term "first\second\third" is only used to distinguish similar objects, and does not represent a specific ordering of objects. Understandably, "first\second\third" Where permitted, the specific order or sequencing may be interchang...

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Abstract

The embodiment of the invention discloses a retrieval method and device, electronic equipment and a computer storage medium. The method comprises the following steps: retrieving a candidate document set from a preset document database according to at least one retrieval word; obtaining a target document score of each candidate document in the candidate document set, wherein the target document score of each candidate document is determined based on logarithmic operation on the word frequency of the search word; sorting each candidate document of the candidate document set based on the target document score of each candidate document of the candidate document set to obtain a sorted candidate document set; and outputting a retrieval result based on the sorted candidate document set.

Description

technical field [0001] The embodiments of the present application relate to the technical field of Internet services, and relate to, but are not limited to, a retrieval method, device, electronic equipment, and computer storage medium. Background technique [0002] In the prior art, the retrieval ranking based on the Term Frequency-Inverse Document Frequency (TF-IDF) algorithm provides a general strategy for expressing vocabulary weight from a macro perspective. Since word frequency calculation adopts a direct linear multiplication method, it tends to give higher scores to high-frequency words, which leads to the results returned when users input high-frequency words and low-frequency words at the same time. They still focus on cases containing high-frequency words. It is easy to cause unreasonable rankings. Contents of the invention [0003] In view of this, embodiments of the present application provide a retrieval method, device, electronic equipment, and computer stor...

Claims

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Application Information

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IPC IPC(8): G06F16/33G06F16/338G06F40/216G06F40/289
CPCG06F16/3334G06F16/338G06F40/289G06F40/216
Inventor 余显陈晓帆陈梓鸿李德方
Owner SANGFOR TECH INC