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Method and device for updating index information in a full-text retrieval system

A technology for indexing information and retrieval systems, applied in the field of information retrieval, can solve problems affecting retrieval performance, impact of full-text retrieval system update efficiency, low update efficiency, etc., and achieve the effect of improving update efficiency

Active Publication Date: 2016-03-30
NEW FOUNDER HLDG DEV LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to resubmit the content of the entire document to the full-text retrieval system. In the case of only updating the data in some data fields in the document, it is necessary to re-create the index for the data in the data field that has not been updated in the document. It will consume a lot of time, and the update efficiency is very low, especially in the case of high-frequency updates, the impact on the update efficiency of the full-text search system will be more serious, and even affect the search performance
[0005] To sum up, the existing full-text retrieval system corresponds to a document that only updates data in some data fields, and will re-establish index information for all the data in the document, thereby reducing the update efficiency of index information in the full-text retrieval system

Method used

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  • Method and device for updating index information in a full-text retrieval system
  • Method and device for updating index information in a full-text retrieval system
  • Method and device for updating index information in a full-text retrieval system

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Embodiment 1

[0033] This embodiment 1 provides a method for updating index information in a full-text retrieval system. This method can be applied to a full-text retrieval system. By applying this technical solution to a full-text retrieval system, it can overcome the problem that the full-text retrieval system in the prior art only corresponds to For documents updated with data in some data fields, index information will be re-established for all data in the document, thereby improving the efficiency of index information update in the full-text retrieval system.

[0034] figure 1 It is a schematic flow chart showing the updating of index information in a full-text retrieval system provided by Embodiment 1 of the present invention, as shown in figure 1 As shown, the process of updating index information in the full-text retrieval system mainly includes the following steps:

[0035] Step 101, the full-text retrieval system monitors the data corresponding to the data field of the dynamicall...

Embodiment 2

[0064] Embodiment 2 provides an application scenario of a method for establishing index information in a full-text retrieval system, and further, corresponds to the method for establishing index information in a full-text retrieval system, and the method for establishing index information in a full-text retrieval system provided in Embodiment 1. For the update method, the second embodiment also provides an application scenario of the update method for index information in the full-text retrieval system.

[0065] Figure 5 It shows a schematic flow chart of establishing index information in a full-text retrieval system provided by Embodiment 2 of the present invention, specifically, as Figure 5 As shown, the process of establishing index information in the full-text retrieval system mainly includes the following steps:

[0066] Step 501, setting the data to be updated in the document as data of dynamic attributes, and storing them in a dynamic data field.

[0067] In this st...

Embodiment 3

[0085] Embodiment 3 corresponds to the method for updating index information in the full-text retrieval system provided in Embodiment 2, and provides an application scenario of a method in which the full-text retrieval system performs retrieval according to a retrieval request.

[0086] Figure 7 It shows a schematic flow chart of a full-text retrieval system performing retrieval according to a retrieval request provided by Embodiment 3 of the present invention. Specifically, the process of the full-text retrieval system performing retrieval according to a retrieval request mainly includes the following steps:

[0087] Step 701, the full-text retrieval system receives the retrieval request submitted by the user, and determines the identifier of the document where the retrieval term contained in the retrieval request is located;

[0088] Step 702, the full-text retrieval system determines the sequence number corresponding to the identifier of the document where the search term ...

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Abstract

The invention discloses an updating method of index information in a full text retrieval system and a device thereof. The method is characterized in that the index information in the full text retrieval system comprises first index information and second index information corresponding to an identical document identification, wherein the first index information is established aiming at data corresponding to a data field with dynamic update property in a document corresponding to the document identification; and the second index information is established aiming at data corresponding to a data field with non-dynamic update property in a document corresponding to the document identification. The full text retrieval system monitors the data corresponding to the data filed with the dynamic update property, and after the full text retrieval system monitors that the data corresponding to the data filed with the dynamic update property has new data, the full text retrieval system re-establishes third index information corresponding to the document identification for the data, including the new data, corresponding to the data field with the dynamic update property. By adopting the technical scheme, the updating efficiency of the index information in the full text retrieval system can be improved.

Description

technical field [0001] The invention relates to the technical field of information retrieval, in particular to a method and device for updating index information in a full-text retrieval system. Background technique [0002] The full-text retrieval system is a retrieval system that is very popular at present. The retrieval system mainly determines the documents that match the retrieval terms submitted by the user terminal based on the pre-established inverted index file. word document. [0003] With the development of information technology and the increase of retrieval requirements, in the full-text retrieval system, some data fields in the stored documents may need to be updated to reflect the status of the stored data in real time, so as to ensure the validity of the retrieved information. For example, when the main content of the document in the index library remains unchanged, some data fields included in the document need to be updated, such as updating the data in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 徐剑波童征宇闫进兵
Owner NEW FOUNDER HLDG DEV LLC