Intelligent retrieval method and system for patent

Abstract

The invention provides an intelligent retrieval method and system for a patent. The method comprises steps including a first retrieval formula acquisition step, a retrieval result A acquisition step, a high-frequency key word extraction step, a second retrieval formula acquisition step, a retrieval result B acquisition step, a feature vector extraction step and a retrieval result C acquisition step. With the adoption of the intelligent retrieval method and system for the patent, key words can be adjusted intelligently and automatically for correction of the retrieval direction, features are extracted from preliminary retrieval results, so that key word retrieval is replaced by feature retrieval, the retrieval precision is improved, and missing retrieval can be effectively prevented; secondary screening is performed in combination with key words such as the publication date and the like, retrieval results with advanced analysis functions such as patent early-warning, patent value and the like can be acquired, all retrieval results are acquired step by step through repeated retrieval in different ranges, so that the retrieval calculation quantity and the retrieval quantity are reduced, and the retrieval time is shortened.

Description

technical field [0001] The present invention relates to the field of information retrieval and analysis and mining, in particular, to a patent intelligent retrieval method and system. Background technique [0002] With the rapid development of science and technology and the globalization of economy, the role of patent data has been paid more and more attention. In particular, today's patent information is growing extremely rapidly, and the annual published patent literature data around the world shows a rapid growth trend. At the same time, the needs of the public, such as scientific researchers, for patent data retrieval are becoming more and more diverse and dependent. [0003] In the case of huge patent search requests and patent data stocks, it takes a lot of time and energy to search relevant patent information through the database, and it is often difficult to avoid problems such as missed detection or insufficient search accuracy and too many search results. Therefor...

AI Technical Summary

Problems solved by technology

[0006] (1) The search results are completely dependent on the keywords entered by the user. If the keywords are inappropriate, it will lead to a deviation in the search direction;

[0007] (2) It only supports the search of keywords, and lacks the judgment of the overall similarity of patent documents, which leads to missed detection in patent early warning retrieval;

[0008] (3) The analysis function of patent data is simple, and the patent value cannot be retrieved;

[0009] (4) Lack of searching for existing design patent documents when searching for novelty of invention

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