A similar patent retrieval method and device

Abstract

The invention relates to a similar patent retrieval method and device, and the method comprises the steps of generating a claim tree diagram and a plurality of word sets according to a claim text in a to-be-retrieved patent text, and enabling each node in the claim tree diagram to represent each claim; generating a corresponding retrieval formula for each word set, and performing retrieval in a patent literature library to obtain a retrieval result; putting each retrieval result into a corresponding node in a claim tree diagram, and calculating a similarity value between each patent file in the retrieval result corresponding to each node in the claim tree diagram and the patent text to be retrieved according to an established weight value model; and reserving the patent file with the highest similarity value with the to-be-retrieved patent text in each retrieval result to obtain a similar patent file set of the to-be-retrieved patent text. According to the patent retrieval method and device, retrieval of key retrieval information in patent retrieval is achieved, the accuracy of patent retrieval results is improved, and the satisfaction degree of users is improved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for retrieving similar patents. Background technique [0002] Patent search is a channel and method to specifically search for patent specifications. It enables enterprises to understand the dynamics of patents in the world and avoid repeated development and waste of funds, which is of great contribution to enterprises. Patent research and application must not be left to chance. According to incomplete statistics, countries lose billions of dollars every year due to failure to consult patent documents, which makes research subjects worthless, and indirect losses are even more. Therefore, patent search plays a decisive role in the growth of enterprises and the saving and improvement of global productivity. [0003] At present, the conventional method of patent retrieval is mainly to directly match and search the description information of the patent to be re...

AI Technical Summary

Problems solved by technology

[0003] At present, the conventional method of patent retrieval is mainly to directly match and search the description information of the patent to be retrieved by matching users, which has low retrieval efficiency and is difficult to achieve satisfactory retrieval results for users, and requires high retrieval skills for users, which is likely to cause critical The search information omission rate is high, and there is a problem of inaccurate patent search results

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