Research on Chinese patent classification based on structured features

Abstract The three dimensions of Function, Structure, and Purpose are fundamental to patent classification and play a decisive role in improving the accuracy of patent information categorization. By providing targeted abstracts for each of these three dimensions, strong summarization and contextual...

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Main Authors: Ran Li, Wangke Yu, Shuhua Wang
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-03441-6
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author Ran Li
Wangke Yu
Shuhua Wang
author_facet Ran Li
Wangke Yu
Shuhua Wang
author_sort Ran Li
collection DOAJ
description Abstract The three dimensions of Function, Structure, and Purpose are fundamental to patent classification and play a decisive role in improving the accuracy of patent information categorization. By providing targeted abstracts for each of these three dimensions, strong summarization and contextual information can be generated, thereby enhancing the effectiveness of patent text analysis. Leveraging three-dimensional features alongside contextual information significantly improves the precision of patent classification. In alignment with the characteristics of the technical domain and the IPC classification system, this paper proposes a Patent Multilevel Domain Information (PMDI) model, designed to facilitate the targeted extraction of 3D information from patents. The PMDI model effectively captures the core 3D features necessary for classification and subsequently integrates these features into a Multi-Information Processing (MIP) model. This MIP model links the extracted 3D features with the IPC classification framework, resulting in a notable improvement in patent classification accuracy. Empirical results indicate that the summary information extracted by the PMDI model enhances classification accuracy by up to 5.67% compared to conventional deep learning approaches. When integrated with the MIP model, the classification accuracy of the multi-dimensional technology domain classification method reaches an impressive 96.77%. The proposed PMDI model, MIP model, and classification method based on structured patent text features collectively contribute to a substantial improvement in classification performance, offering significant support for knowledge-driven services such as knowledge retrieval and patent management.
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spelling doaj-art-df7285f2a65741e2b64016343c7e2b2c2025-08-20T03:08:40ZengNature PortfolioScientific Reports2045-23222025-05-0115111510.1038/s41598-025-03441-6Research on Chinese patent classification based on structured featuresRan Li0Wangke Yu1Shuhua Wang2Intellectual Property Information Service Center & School of Management and Economics, Jingdezhen Ceramic UniversityIntellectual Property Information Service Center & School of Management and Economics, Jingdezhen Ceramic UniversityIntellectual Property Information Service Center & School of Management and Economics, Jingdezhen Ceramic UniversityAbstract The three dimensions of Function, Structure, and Purpose are fundamental to patent classification and play a decisive role in improving the accuracy of patent information categorization. By providing targeted abstracts for each of these three dimensions, strong summarization and contextual information can be generated, thereby enhancing the effectiveness of patent text analysis. Leveraging three-dimensional features alongside contextual information significantly improves the precision of patent classification. In alignment with the characteristics of the technical domain and the IPC classification system, this paper proposes a Patent Multilevel Domain Information (PMDI) model, designed to facilitate the targeted extraction of 3D information from patents. The PMDI model effectively captures the core 3D features necessary for classification and subsequently integrates these features into a Multi-Information Processing (MIP) model. This MIP model links the extracted 3D features with the IPC classification framework, resulting in a notable improvement in patent classification accuracy. Empirical results indicate that the summary information extracted by the PMDI model enhances classification accuracy by up to 5.67% compared to conventional deep learning approaches. When integrated with the MIP model, the classification accuracy of the multi-dimensional technology domain classification method reaches an impressive 96.77%. The proposed PMDI model, MIP model, and classification method based on structured patent text features collectively contribute to a substantial improvement in classification performance, offering significant support for knowledge-driven services such as knowledge retrieval and patent management.https://doi.org/10.1038/s41598-025-03441-6
spellingShingle Ran Li
Wangke Yu
Shuhua Wang
Research on Chinese patent classification based on structured features
Scientific Reports
title Research on Chinese patent classification based on structured features
title_full Research on Chinese patent classification based on structured features
title_fullStr Research on Chinese patent classification based on structured features
title_full_unstemmed Research on Chinese patent classification based on structured features
title_short Research on Chinese patent classification based on structured features
title_sort research on chinese patent classification based on structured features
url https://doi.org/10.1038/s41598-025-03441-6
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AT shuhuawang researchonchinesepatentclassificationbasedonstructuredfeatures