At present, there are two authoritative versions in China to identify the core journals published in China (excluding Hong Kong, Macao and Taiwan). First, the Citation Report of China Sci-tech Journals (hereinafter referred to as the Citation Report) published once a year by China Institute of Sci-tech Information; The other is the Compendium of China Core Journals (hereinafter referred to as Compendium) jointly edited and published by Peking University Library and Peking University Library Journal Work Research Association. The Summary of Main Contents is published irregularly, and the second edition 1996 was published in 2000, and the 2000 edition and the 2004 edition were published. The compendium includes Chinese periodicals in various disciplines such as social science and natural science. Among them, the identification of core journals is comprehensively evaluated through five indicators. The selection principle of statistical source journals in Citation Report and the determination of core journals in Summary of Contents are based on different methods, so their definitions of core journals (referring to science and technology) are not completely consistent.
2. What is a national periodical? Provincial periodicals?
Generally speaking, "national" periodicals are published by the Central Committee of the Communist Party of China, the State Council and their subordinate departments, or by China Academy of Sciences, China Academy of Social Sciences, and people.
Periodicals sponsored by major political parties and national people's organizations and periodicals sponsored by national professional societies. In addition, the publication clearly indicates the "national period"
Publications with the words "periodical" and "core periodical" can also be regarded as national publications.
"Provincial" periodicals, that is, periodicals sponsored by provinces, autonomous regions and municipalities directly under the Central Government and their subordinate ministries, commissions, departments and bureaus, and periodicals sponsored by colleges and universities.
Journals sponsored by.
3. What is a nuclear journal?
To put it simply, core journals are the most important core journals, which are tracked and evaluated by academic circles through a set of scientific methods and classified and graded according to the theory of information science.
4. Jiangsu Environmental Science and Technology is a provincial periodical.
5. Interpretation of common nouns in periodical evaluation
In order to facilitate readers' reference and use, the theoretical significance and specific algorithm of periodical evaluation index used in the Annual Report of Comprehensive Citation of China Academic Journals (CAJCES) are briefly described as follows:
Total citation frequency: refers to the total citation times of all papers published by this journal since its inception in a statistical year. This is a very objective and practical evaluation index, which can show the extent to which the journal is used and valued, as well as its role and position in scientific exchanges.
Impact factor: This is an internationally accepted periodical evaluation index. It was put forward by E Garfield in 1972. Because it is a relative statistic, it can fairly evaluate and handle various periodicals. Generally speaking, the greater the impact factor of a journal, the greater its academic influence and role. The specific algorithm is:
Annual index: this is an index representing the immediate response rate of periodicals, which mainly describes the citation of papers published in the same year. The specific algorithm is:
Citation half-life: refers to how long it takes for the newer half of the total number of citations in that year to be published. Now give an example to illustrate its calculation method (taking Science 1996 as an example):
Note: Citation half-life and cited half-life are both indicators to measure the aging speed of periodicals. These two half-lives are usually not for a single document or a group of documents, but for the sum of documents in a certain discipline or professional field.
Source literature quantity: refers to the total number of papers in the statistical year of the source periodical, which is the source of data cited by the statistical periodical.
6. At present, the evaluation of core journals in China is mainly based on the outline of Chinese core journals. According to the statistics of China Core Journals Catalogue (2004 edition), there are *** 1800 core journals in China. Can core journals be searched in the main catalogue? Its evaluation has a complicated system.
The research on core journals in China began in the 1970s, when the prices of foreign academic journals rose sharply, which made it difficult for local libraries to order foreign sci-tech journals in the original way of all orders. How to selectively purchase a limited number of foreign periodicals at a limited cost has become an urgent problem in the procurement of foreign periodicals in China. Therefore, the evaluation and research of foreign language periodicals have been started, with the aim of finding a rule so as to buy the best and most foreign language academic periodicals with the least money. Peking University Library and Peking University Library Periodical Work Research Association conducted a series of quantitative and qualitative research on this project. Since then, the concepts and evaluation methods of core journals have been introduced to China from abroad, and great research achievements have been made since 1990s. The results have been published by Peking University Publishing House in the form of reference books (an overview of Chinese core journals). According to the category series of China Library Classification, the book Overview of Chinese Core Journals is divided into 7 parts and 74 disciplines, including nearly 65,438+00,000 L titles and detailed classification details. Among them, core journals account for about L5% of professional journals. As soon as this book was published, its systematicness, scientificity and practicability were recognized by the society, and it became an influential reference book, which had great influence in the fields of library and information science, academia, publishing industry and scientific research management departments. Many universities and scientific research institutions in China have chosen the book Summary of China Core Journals as the basis for evaluating scientific and technological achievements (papers), and core journals and their rankings as the basis for rewarding achievements (papers). It is understood that the main reason why universities and scientific research institutions unanimously choose the book Summary of Core Journals in China as the standard is that the selection method of strict and comprehensive control, quantitative sorting and qualitative combination is adopted in the selection process of core journals. Quantitative evaluation adopts multi-index comprehensive evaluation method. The original whole research topic belongs to the "National Social Science Fund Project" and three sub-topics. Peking University is responsible for the establishment of 100 journal staff and nearly 2,000 experts in various disciplines, which is the result of years of comprehensive and systematic research. The 2000 edition of China Core Journals Abstracts adopts the method of combining quantitative ranking with qualitative analysis, and the quantitative evaluation adopts the multi-index comprehensive evaluation method. It is evaluated by one or seven indicators respectively: the number of requests, that is, the articles published by periodicals are included in bibliographies and index publications. (2) The number of articles picked refers to the situation that articles in periodicals are picked and reprinted by abstract publications. ⑧ Citation refers to the situation that articles published in a journal are cited by "source journals". Refers to the situation in which published articles are quoted by other authors. (8) Impact factor, which is an internationally accepted measure. That is, the ratio of the total number of citations of papers published in the first two years of the journal to the total number of articles published in the first two years of the journal. Rejection rate refers to the ratio of the total number of abstracts and reposts of articles published in a journal by a certain discipline (or a certain subject) to the total number of published articles during the statistical period. ⑦ These seven evaluation indexes that won prizes or were included in important retrieval tools. . Second, the main influencing factors of three multi-indicators: ① Establish an evaluation index system and follow the principles of scientificity, rationality, objectivity and operability. Among many factors that can reveal the quality and level of periodicals, the factors with obvious core effect and accurate statistical sources are selected.
That's true. Operational factors as evaluation indicators. ② The selection of retrieval tools for statistical sources of evaluation indicators should meet the conditions of comprehensive disciplines, appropriate journal selection, standardized editing, accurate data, complete review period, large number of users, high authority and convenient statistics. (3) Using various mathematical models for data processing (such as fuzzy mathematics, analytic hierarchy process, principal component analysis, etc.). ). Third, in the division of core differences, ① cumulative percentage method ② regional method ⑧ image method and so on. Looking at the selection process and results of core journals, it is not surprising that the research achievement "Summary of China Core Journals" has been unanimously recognized by the whole society because of its unquestionable systematicness, scientificity, professionalism and authority, and has been widely used, which has become the basis for scientific research management departments in colleges and universities to judge and measure the level of scientific and technological achievements (papers) and reward achievements.
Reference article: Journal of Dali University: Comprehensive Edition, Volume 4, No.6, 2005, 1.05.
Page number of Journal of Dali University: 132- 133. Sources and Evaluation Methods of Chinese Core Journals Yang Yunchuan and Li Lijuan, Science and Technology Department of Dali University, Dali, Yunnan 67 1003.
2. Comparative Study on Full-text Databases of Three Chinese Journals Peng Jun (Shanghai 200433, Library of Second Military Medical University) /blog/read.php? bloggerid = 746003 & ampblogid=34584