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Database retrieval method, device, system and storage medium

A database and retrieval sub-technology, applied in the direction of digital data information retrieval, electronic digital data processing, special data processing applications, etc., can solve the problems of low retrieval accuracy and unretrieved text, and achieve the effect of improving retrieval accuracy

Active Publication Date: 2021-07-27
BEIJING GRIDSUM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the end characters of the search condition will appear repeatedly in the word segmentation results of the search condition, it is easy for the text that originally meets the search condition to not be retrieved, resulting in low retrieval accuracy

Method used

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  • Database retrieval method, device, system and storage medium
  • Database retrieval method, device, system and storage medium
  • Database retrieval method, device, system and storage medium

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Embodiment Construction

[0050] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0051] Such as figure 1 As shown, the embodiment of the present invention provides a database retrieval method, which may include the following steps:

[0052] S10. When receiving a retrieval request carrying a first retrieval condition, process the first retrieval condition to obtain a second retrieval condition, and the number of retrieval results corresponding to the second retrieval condition is not less than that corresponding...

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Abstract

The invention discloses a database retrieval method, device, system and storage medium. The method includes: when receiving a retrieval request carrying a first retrieval condition, processing the first retrieval condition to obtain a second retrieval condition, so The number of search results corresponding to the second search condition is not less than the number of search results corresponding to the first search condition; use the second search condition to search to obtain the first search result; determine the first search result in the first search result The second search result that matches the search criteria. Based on the method disclosed in the present invention, the first retrieval condition can be relaxed first to obtain the second retrieval condition, and then the second retrieval condition is used for retrieval, which ensures that all texts that meet the first retrieval condition are in the first retrieval result, and then determined The second retrieval result matching the first retrieval condition ensures that the final second retrieval result is comprehensive and accurate, thereby improving retrieval accuracy.

Description

technical field [0001] The present invention relates to the field of natural language processing, in particular to a database retrieval method, device, system and storage medium. Background technique [0002] Distributed databases, such as Elastic Search databases, have powerful full-text indexing capabilities and can process full-text search requests in near real time. [0003] At present, when it is necessary to accurately match a certain content in the Elastic Search database, word segmentation is mainly used for Elastic Search database retrieval: first, word segmentation is performed on the search conditions and the text in the Elastic Search database, and then the word segmentation results of the search conditions and the text segmentation results are used Matching is performed to find the target text that meets the retrieval criteria from the Elastic Search database. [0004] However, since the end characters of the retrieval conditions will appear repeatedly in the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/242
CPCG06F16/2425
Inventor 王清华
Owner BEIJING GRIDSUM TECH CO LTD