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Agricultural specialist information retrieval system and method on basis of agricultural technology information ontology library

An agricultural technology and information retrieval technology, applied in the field of retrieval, can solve problems such as incomplete and accurate understanding of user query intentions, lack of users, etc.

Inactive Publication Date: 2016-02-17
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology

Due to the lack of user participation in the whole process, the semantic analysis of the natural query language input by the user cannot fully and accurately understand the user's query intent

Method used

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  • Agricultural specialist information retrieval system and method on basis of agricultural technology information ontology library
  • Agricultural specialist information retrieval system and method on basis of agricultural technology information ontology library
  • Agricultural specialist information retrieval system and method on basis of agricultural technology information ontology library

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0032] Aiming at the problems of low retrieval precision existing in existing semantic retrieval methods and systems, and according to the specific needs of agricultural technology information retrieval related expert information, the present invention provides a semantic retrieval method and system, by improving the existing semantic retrieval methods and To deal with the structure and accuracy of data sources in the system, establish an agricultural technology information ontology database, and introduce user interactive participation mode, so as to achieve the goal of improving the precision and recall of retrieval. The retrieval accuracy of the agricultural ...

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Abstract

The invention discloses an agricultural specialist information retrieval system and method on the basis of an agricultural technology information ontology library. The method comprises the steps of acquiring agricultural technical inquiry statements of a natural language form; performing word segmentation treatment on the inquire statements of natural languages and performing information extraction of region and field so as to obtain search keywords; judging whether vocabularies related to an ontology semantic concept exist or not in the search keywords according to a preset agricultural technology information ontology library; when judging that the vocabularies related to the ontology semantic concept exist in the search keywords, performing ontology semantic extension on the search keywords according to the preset agricultural technology information ontology library so as to obtain an ontology semantic extension set; accessing a preset specialist information index database according to the ontology semantic extension set and performing specialist information retrieval so as to generate a specialist information retrieval result. According to concrete demands, specific field and region information is extracted from the retrieve information, and the matching degree of information to be retrieved and specialist information is improved.

Description

technical field [0001] The invention relates to the retrieval field, in particular to an agricultural expert information retrieval system and method based on an agricultural technology information ontology database. Background technique [0002] Compared with the scale and characteristics of agricultural production in my country, the number of agricultural experts is difficult to meet the needs of solving agricultural problems on the spot. Many problems that arise in agricultural production (such as diagnosis of diseases and insect pests, selection of planting varieties and density, planning of planting and breeding environment, etc.) ) difficult to obtain technical support from agricultural experts. Therefore, for the actual production problems that cannot be solved by grass-roots agricultural technicians, through matching with agricultural experts, we recommend the most suitable experts who can solve the problems; Information exchange and submission of technical measures c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/243G06F16/24522G06F16/951
Inventor 李飞飞吴华瑞孙想顾静秋李庆学
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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