A scientific literature clustering method and system based on unsupervised keyword extraction

By constructing an unsupervised keyword extraction model, combining the characteristics of Chinese and English, and automatically adjusting the keyword length and performing differentiated embedding methods, the problem of low efficiency in keyword recognition and clustering in existing literature management systems is solved, achieving efficient clustering and accurate organization of Chinese and English scientific literature.

CN117453912BActive Publication Date: 2026-07-03SHANDONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2023-09-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing document management systems suffer from inefficiency and inaccuracy in keyword recognition and document clustering, especially in Chinese scientific literature. Existing unsupervised keyword extraction algorithms ignore background knowledge and domain characteristics, resulting in poor clustering performance.

Method used

We construct a clustering model based on unsupervised keyword extraction. By comprehensively considering the occurrence of words in document abstracts and titles, the semantic similarity between words and documents, and the characteristics of domain keywords, we use different embedding methods to cluster Chinese and English documents, extract keywords rich in domain concepts, and perform effective clustering.

Benefits of technology

It improves the accuracy and efficiency of literature clustering, can automatically adjust the keyword length according to the characteristics of the field, realizes effective clustering of Chinese and English scientific literature, and enhances the ability to organize literature and grasp research trends.

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Abstract

This invention relates to a scientific literature clustering method and system based on unsupervised keyword extraction. First, it effectively extracts keywords from scientific literature by comprehensively considering factors such as the occurrence of words in document abstracts and titles, the semantic similarity between words and the documents themselves, and the characteristics of domain keywords. Then, based on the characteristics of Chinese and English, this invention uses different embedding methods to cluster the extracted Chinese and English keywords, thereby achieving effective clustering of Chinese and English scientific literature. This invention considers the importance of words from multiple perspectives, comprehensively considering their occurrence in document abstracts and titles, and uses a method that automatically adjusts the preset keyword length based on domain characteristics to calculate keyword scores, thus incorporating more features of the words. This invention improves upon existing unsupervised keyword extraction algorithms.
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