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Memory, dangerous chemical accident case retrieval method, device and equipment

A technology for hazardous chemicals and accidents, applied in the field of hazardous chemical accident case retrieval and storage, can solve the problem of low efficiency in extracting characteristic keywords of hazardous chemical accident cases, can not well meet the retrieval requirements of hazardous chemical accident cases, accurate In order to reduce the dimension of candidate keywords, improve the efficiency and accuracy of extraction calculation, and reduce the introduction of

Pending Publication Date: 2022-05-17
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The inventor found through research that the above-mentioned methods in the prior art tend to result in low extraction efficiency and low accuracy of the characteristic keywords of hazardous chemical accident cases, which cannot well meet the retrieval requirements of hazardous chemical accident cases

Method used

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  • Memory, dangerous chemical accident case retrieval method, device and equipment
  • Memory, dangerous chemical accident case retrieval method, device and equipment
  • Memory, dangerous chemical accident case retrieval method, device and equipment

Examples

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Embodiment 1

[0065] In order to improve the efficiency and accuracy of extracting core keywords from hazardous chemical accident cases, refer to figure 1 , in an embodiment of the present invention, a method for retrieving hazardous chemical accident cases is provided, including steps:

[0066] S11. When constructing the hazardous chemical accident case library, set the text file of the hazardous chemical accident case to at least include multiple content sections with accident causes; the description content of the accident causes includes accident type description and disaster-causing element description and a description of the affected objects;

[0067] The inventor found through research that, for the case of a hazardous chemical accident, after describing the accident type, disaster-causing elements and disaster-affected objects of the hazardous chemical accident, the characteristics of the accident (characteristics required for case retrieval) can be fully expressed ); for case ret...

Embodiment 2

[0118] On the other side of the embodiment of the present invention, there is also provided a dangerous chemical accident case retrieval device, figure 2 It shows a schematic structural diagram of the dangerous chemical accident case retrieval device provided by the embodiment of the present invention, and the hazardous chemical accident case retrieval device is the same as figure 1 The device corresponding to the dangerous chemical accident case retrieval method described in the corresponding embodiment, that is, realized by means of a virtual device figure 1 In the method for retrieving hazardous chemical accident cases in the corresponding embodiment, each virtual module constituting the device for retrieving hazardous chemical accident cases may be executed by electronic equipment, such as network equipment, terminal equipment, or server. Specifically, the dangerous chemical accident case retrieval device in the embodiment of the present invention includes:

[0119] The ...

Embodiment 3

[0124] On the basis of embodiment two, it may also include:

[0125] The result acquisition unit 04 is configured to sort the query sentences according to the similarity with the hazardous chemical accident cases when searching the hazardous chemical accident case database, and return the query results.

[0126] Since the working principle and beneficial effects of the dangerous chemical accident case retrieval device in the embodiment of the present invention have beenfigure 1 The corresponding hazardous chemical accident case retrieval methods are also recorded and explained, so they can be referred to each other and will not be repeated here.

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Abstract

The invention discloses a memory and a dangerous chemical accident case retrieval method, device and equipment, and the method comprises the steps: setting a text file of a dangerous chemical accident case as a plurality of content plates at least comprising accident causes when a dangerous chemical accident case library is constructed; the description content of the accident cause comprises an accident type description, a disaster-causing element description and a disaster-affected object description; performing word segmentation processing on the initial target text and converting the initial target text into a standard target text; the conversion into the standard target text comprises replacement chemical English name and / or equipment name recombination and identification; by introducing targeted influence factors and comprehensively calculating candidate keyword weights, effective extraction of standard target text feature keywords is realized. According to the method, the text length of the target text used for extracting the feature keywords is reduced, so that the dimensionality of the candidate keywords and introduction of irrelevant candidate keywords are reduced, and the extraction and calculation efficiency and accuracy of the feature keywords of the dangerous chemical accident cases are improved.

Description

technical field [0001] The invention relates to the field of petrochemical safety technology, in particular to a method, device and equipment for retrieving storage and hazardous chemical accident cases. Background technique [0002] The retrieval of hazardous chemical accident cases needs to automatically match the accident cases that meet the query conditions from the hazardous chemical accident case database according to the query conditions given by the user. Hazardous chemical accident case retrieval is a key step in the acquisition of hazardous chemical emergency knowledge in emergencies. [0003] One of the key steps in realizing the retrieval of hazardous chemical accident cases is the extraction of characteristic keywords in the cases. Feature keywords are words or phrases that represent the content of an accident case and play a key role. The feature keywords in the case text have different weights. When extracting, the feature keywords need to be sorted according...

Claims

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Application Information

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IPC IPC(8): G06F16/33G06F16/35G06F40/289G06F40/242G06F40/216
CPCG06F16/3334G06F16/353G06F40/289G06F40/242G06F40/216
Inventor 于学春毛文锋王正王伟强于广宇
Owner CHINA PETROLEUM & CHEM CORP
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