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Reconnaissance report text key information extraction system and method

A technology of key information and extraction method, which is applied in the field of key information extraction from the text of the survey report, can solve the problems that cannot be normalized, and the position information of phrases or words is not taken into account, so as to achieve the convenience of verification report and save time and energy. , the effect of improving the accuracy

Pending Publication Date: 2021-10-19
XIAN UNIV OF TECH
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Problems solved by technology

However, the TF-IDF algorithm also has certain shortcomings. For example, the synonymous expression of the meaning of the same entity cannot be normalized, and it does not take into account the position information of phrases or words. The importance of information is generally higher than that of the beginning or middle of the paragraph

Method used

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  • Reconnaissance report text key information extraction system and method
  • Reconnaissance report text key information extraction system and method
  • Reconnaissance report text key information extraction system and method

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Embodiment Construction

[0056] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] The present invention is a key information extraction system of survey report text, its structure is as follows figure 1 As shown, it includes a text input module 1 , a text preprocessing module 2 , a TF-IDF calculation module 3 , a text information improvement module 4 , a keyword output module 5 , and a search and location key information module 6 connected sequentially by electrical signals.

[0058] The text input module 1 is used to extract the text in the survey report text, and save it in .txt format, then remove charts, directories, formulas, and format characters, and store the survey report in the format of serial number, title, and content, and Save as .csv file; text preprocessing module 2 is used to preprocess and denoise the text via text input module 1; TF-IDF calculation module 3 is used to pass TF-IDF to the informatio...

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Abstract

The invention discloses a reconnaissance report text key information extraction system. The system comprises a text input module, a text preprocessing module, a TF-IDF calculation module, a text information improvement module, a keyword output module and a key information searching and positioning module which are in electric signal connection in sequence. According to the reconnaissance report text key information extraction system, an existing TF-IDF algorithm is optimized, so that the accuracy of the existing TF-IDF algorithm is greatly improved, and automatic output of key information of a reconnaissance report standard text is achieved. The invention further discloses a reconnaissance report text key information extraction method.

Description

technical field [0001] The invention belongs to the technical field of key information extraction of reconnaissance reports, and relates to a system for extracting key information of reconnaissance report texts, and also relates to a method for extracting key information of reconnaissance report texts. Background technique [0002] With the rapid development of my country's civil construction industry, there are many project participants, scattered project locations, and long construction periods, which make it difficult for managers to obtain and analyze management information during project construction. For project managers, the barriers to the expression of written information, the variety of quantities and the problems of reading omissions often lead to a decrease in the comprehensibility of information during the construction process, and it is difficult to clearly express the actual situation of the project and the dynamic changes of various complex information. In ad...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F40/289G06F40/216G06F40/242G06F40/268
CPCG06F40/289G06F40/216G06F40/242G06F40/268
Inventor 何敏徐永辉朱记伟赵钦姚旭豪王跃祺王妥齐程程季文静任姿徉陈阳凤包磊
Owner XIAN UNIV OF TECH
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