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A method for automatic expansion of agricultural ontology

A technology of automatic expansion and ontology, applied in the fields of instrumentation, calculation, electrical and digital data processing, etc., can solve problems such as large labor

Inactive Publication Date: 2018-11-20
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method for automatic expansion of agricultural ontology, which can automatically collect and expand agricultural ontology, solve a large number of manual problems in the current automatic ontology expansion method, and realize automation

Method used

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  • A method for automatic expansion of agricultural ontology
  • A method for automatic expansion of agricultural ontology
  • A method for automatic expansion of agricultural ontology

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Experimental program
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Embodiment

[0059] Step 1. Collect the agricultural ontology data information in the Internet through the network terminal equipment, and preprocess the collected data, including:

[0060] Step 1: Wikipedia data preprocessing, specifically including:

[0061] Unstructured text information in Wikipedia undergoes word recognition, morphological restoration, part-of-speech tagging, and central word extraction;

[0062] Respectively perform morphological restoration and core word extraction on Infobox text information and Category text information in Wikipedia;

[0063] Step 2: The term classification in the given agricultural domain ontology (existing agricultural ontology), specifically includes:

[0064] For each term in the existing agricultural domain ontology, first perform morphological restoration and extract the central word;

[0065] According to the central words, the terms in the ontology of the given agricultural domain are classified, that is, the terms with the same central w...

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Abstract

The invention discloses an automatic extension method of an agricultural ontology. The automatic extension method comprises the following steps: collecting data information of the agricultural ontology in the Internet through network terminal equipment, and pretreating collected data; extracting candidate lexical items which need to be added to the given agricultural ontology from structured information of Wikipedia; extracting a hypernym candidate set based on the ontology, and extracting all possible hypernyms from each candidate lexical item; performing hypernym positioning based on hybrid sorting, and sorting the lexical items in the hypernym candidate set of each candidate lexical item, so as to determine the hypernyms of the candidate lexical items in the existing agricultural ontology. According to the method, automatic collection and extension of the agricultural ontology are realized, the problem of a large amount of labor of the automatic extension method of the ontology in the prior art is solved, and automation is realized.

Description

technical field [0001] The present invention relates to the field of natural language processing, and more specifically relates to an automatic expansion method for agricultural ontology. Background technique [0002] With the continuous deepening of my country's current market economic reform, the price of agricultural products is more and more seriously affected by the specific market operation and circulation environment, and the fluctuation of product prices has intensified, which has brought more benefits to the local government's macroeconomic regulation and rational planning of industrial development. ask for more. Therefore, mastering and understanding the price differences of agricultural products in various regions of our country will help to correctly guide agricultural production and circulation of agricultural products, and achieve a balance between supply and demand of agricultural products; it will help government departments to adjust agricultural structure an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06F17/27
Inventor 陈瑛季烜高万林张港红陈雪瑞
Owner CHINA AGRI UNIV