Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] This article attempts to study technological evolution from the perspective of patent classification revisions, and provides new ideas for technological evolution research. [Method/process] First, according to the 2009-2018 revisions of the H part of the IPC classification table, four types of revisions were summarized: new classification, deletion classification, intra-class transfer classification, and inter-class transfer classification. Secondly, for the archived documents generated after classification revision, a reclassification method of patent archived documents based on the Word2vec+TextCNN model was proposed, so that the old and new classification tables were connected by reclassifying patents. Finally, combined with the revised classification and reclassification patents of Part H from 2009 to 2018, the preliminary exploration of technological evolution was carried out. [Result/conclusion] The patent reclassification model can effectively solve the problem of archived documents, provides reference for patent reclassification work, and can link the new and old patent classification tables; based on IPC classification revision and reclassification of patents, the main technological evolution direction after classification revision can be analyzed, providing a new perspective for research on technological evolution.
Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: [Purpose/significance] This paper reviews and summarizes Professor Meng Liansheng’s contributions in the research of bibliometrics theory and method, data system construction, practical research, international academic exchanges and personnel training, and shows Professor Meng Liansheng’s spirit of seeking, pioneering and rigorous scholarship under arduous conditions. [Method/process] Using the method of literature research and combining with the interviews of characters, this paper studied the research from the research process, research results, significance and influence of Professor Meng Liansheng. [Result/conclusion] His innovative research has promoted the development of bibliometrics research and application in China and expanded China’s international influence in this field. By leading the creation of CSCD and DISC databases, the application of bibliometrics methods in scientific and technological literature retrieval, scientific journal evaluation and scientific activity evaluation has been promoted, which are important signs and achievements of the development of Chinese bibliometrics.
Subjects: Library Science,Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract: Purpose/significance By discussing professor Meng Liansheng’s academic thoughts and practical course, we can understand the development of libraryship to some extent, and provide experience and reference for future exploration and progress. Method/process The article applied content analysis, bibliometrics and interview methods to collect, sort out and analyze various types of materials and data to form research conclusions. Result/conclusion Professor Meng has the courage of academic exploration, pursuit of practical innovation, and has opened a precedent for the research and construction of Chinese Citation Database. It has made great achievements in the essential relationship between scientific research and information science, the development of literature and information industry, the construction of scientific and technological information resources, information retrieval of scientific and technological literature, and the theory and practice of digital library in China. Professor Meng’s rigorous academic research, accumulation of knowledge, seeking truth from facts and excellence in the spirit of refining the characters is admirable. And his teaching style of moisturizing things silently is admired by all his students.