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Retrieval method and device, computer equipment and storage medium

A document storage and indexing technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as memory overflow and low query efficiency

Inactive Publication Date: 2018-11-13
CHINA PING AN LIFE INSURANCE CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The application provides a retrieval method, device, computer equipment and storage medium, aiming to solve the Chinese full-text retrieval based on the Lucene kernel in the prior art. When the Lucene file index library is particularly large, memory overflow errors are prone to occur, resulting in Query inefficiency

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

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0032] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used in the specificati...

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Abstract

The invention discloses a retrieval method and device, computer equipment and a storage medium. The method comprises the following steps that: obtaining a plurality of texts to be subjected to word segmentation, carrying out word segmentation on each text to be subjected to word segmentation to obtain a word segmentation result; storing the word segmentation result in a distributed document storage database, and establishing an index according to each text to be subjected to word segmentation and the word segmentation result; obtaining a query statement sent from a client side, and carrying out word segmentation on the query statement to obtain a query segmented word; and if an index entry corresponding to the query segmented word is in the presence in the index, obtaining a query result corresponding to the index entry, and sending the query result to the client side. By use of the method, the index of a Chinese text is created in the distributed document storage database, and the efficient full text retrieval of mass Chinese texts is realized through the index.

Description

technical field [0001] The present application relates to the technical field of text retrieval, and in particular to a retrieval method, device, computer equipment and storage medium. Background technique [0002] At present, the method of Chinese full-text retrieval is mostly based on the Elasticsearch product (ElasticSearch is a search server based on Lucene) based on the Lucene kernel (Lucene is an open source full-text search engine toolkit), so the inherent problems of Lucene, the same Exists in Elasticsearch. The Chinese full-text search of the Lucene kernel has the following problems: [0003] 1) When the Lucene file index library is particularly large, it is prone to memory overflow errors (that is, an OutOfMemory error is prompted), and the query will also become very slow. [0004] 2) Lucene is not suitable for more complex calculations, and does not have the ability to execute server-side scripts on data. Contents of the invention [0005] The application pr...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 陈飞
Owner CHINA PING AN LIFE INSURANCE CO LTD
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