Intelligent retrieval method and device for calculating patent literature similarity based on word frequency and semantics, electronic equipment and storage medium thereof

Abstract

The invention provides an intelligent retrieval method and device for calculating patent literature similarity based on word frequency and semanteme, electronic equipment and a storage medium of the electronic equipment. Bag-of-words statistics and word vector calculation are conducted on all literatures in a patent database, and corresponding bag-of-words data and word distance data are obtained;the method comprises the following steps: establishing a model, inputting contents or examination question numbers, acquiring titles, abstracts, claims and specifications of patents to be examined from question bank data and carrying out various combinations, performing rough selection and fine selection respectively according to a bag-of-words algorithm and a semantic algorithm, performing textsimilarity analysis on selected data, and performing fusion sorting on analysis results to obtain comprehensive similarity. Through duplicate checking and screening, a suspicious answer set of the to-be-checked patent is given. According to the method, the retrieval speed is increased, two rounds of screening are adopted, the first round of roughing aims at rapidly narrowing the comparison range,and the second round of fine selection aims at improving the accuracy; manpower and time can be effectively saved, a patent reviewer is helped to reduce the related patent review range, and review efficiency is improved.

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. Examiners need to spend a lot of time and energy in the patent examination process, the work efficiency is low, and there is a problem of strong subjectivity in the audit opinions.

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