An intelligent retrieval method, device, electronic device and storage medium for computing patent document similarity based on word frequency and semantics

Abstract

The present invention provides an intelligent retrieval method, device, electronic equipment and storage medium for calculating the similarity of patent documents based on word frequency and semantics, and performs bag-of-words statistics and word-vector calculations on all documents in the patent database to obtain corresponding bag-of-words data and word distance data; build a model, input the content or test question number, obtain the title, abstract, claims, and instructions of pending patents from the question bank data and make multiple combinations, and perform rough selection and analysis according to the bag of words algorithm and semantic algorithm respectively Fine selection, text similarity analysis is performed on the selected data, and the analysis results are fused and sorted to obtain a comprehensive similarity. After repeated checking and screening, a set of suspicious answers for patents to be checked is given. The invention improves the retrieval speed and adopts two rounds of screening. The first round of rough selection aims to quickly narrow the scope of comparison, and the second round of fine selection aims to improve the accuracy rate; it can effectively save manpower and time, and help patent examiners reduce the number of related patents. Examine scope and improve examination efficiency.

Description

technical field [0001] The invention belongs to the technical field of data plagiarism checking, and in particular relates to an intelligent retrieval method, device, electronic equipment and storage medium for calculating the similarity of patent documents based on word frequency and semantics. Background technique [0002] A patent is a special document protected by law, and it is a means for the government to protect social inventions and creations. After the national patent management department accepts a patent application, it needs to conduct an effective review of the patent, and the checking of plagiarism during the review process is undoubtedly One of the important links, the commonly used plagiarism check algorithm in the existing plagiarism check system is the bag of words algorithm or semantic algorithm. [0003] The bag-of-words algorithm refers to the similarity calculation based on the bag-of-words results of the word segmentation statistics of the text conten...

AI Technical Summary

Problems solved by technology

[0005] However, in the existing technology, the patent plagiarism check algorithm is used in a single way and the accuracy of the results is not high. The examiners need to spend a lot of time and energy in the patent examination process, the work efficiency is low, and there are problems of strong subjectivity in the examination opinions.

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