[Switch] JCR journal partition and its retrieval method

Many institutions have formulated research incentive policies based on JCR journal partitions, and relevant researchers and research management institutions are closely concerned with JCR journal partitions and their retrieval methods. This article gives a rough introduction.

About JCR (Journal Citation Reports, Journal Citation Report) There are two types of journal partitions that have a wide impact: one is the partition developed by Thomson Reuters, first, the Division developed by the National Science Library of the Chinese Emy of Sciences (hereinafter referred to as the Division of the Chinese Emy of Sciences ). These are based on the Impact Factors of journals indexed by SCI.

What is the difference between the two? Thomson Reuters itself is partitioned by Thomson Reuters, which is divided into four areas and four levels. After consulting with the Thomson Reuters staff, the Thomson Reuters partition is based on the subject, that is, all the journals of a subject are sorted in descending order according to the impact factors of the previous year, then, an average of 4 equals points (25% each) are Q1, q2, Q3, and Q4. The impact factor of SCI journals is generally the JCR of the year before the JCR was published in 2012 each year. For example, JCR was published in. The Division made by the Chinese Emy of Sciences is more detailed. In 2013, the SCI Journal regional journal rankings, the threshold value is the average if value of the Journal for three years as the basis for calculation. It is divided into medical, geology, engineering technology, astronomy, management science, chemistry, environmental science, agriculture and forestry science, biology, mathematics, physics, medicine, and other disciplines. According to the observation of friends, the method adopted by the Chinese Emy of Sciences is as follows: the first 5% of the average impact factors of various journals in three years, and the second published the first 6% ~ 20%, three-area Journal: First 21% ~ 50%, four-area publication: Post 51% ~ 100%. I will further observe that the situation in each Science and Technology Division I is basically correct, but not in other areas. For example, in some disciplines, four-area journals account for more than 70%. To sum up, if the impact factor is ranked within the top 5% in a certain discipline field, it is highly likely that the Chinese Emy of Sciences will partition the 1st area. The actual situation should be subject to the search results, because the subject categories of the two families have different standards. It is reported that the journal Partition Table (Chinese Emy of Sciences) is the scientific research result of the World Science frontier Analysis Center of the National Science Library of the Chinese Emy of sciences, the main purpose is to achieve the journal impact factor to achieve a general comparison between the journal impact factors of different disciplines. Therefore, the problems of the journal impact factors cannot be avoided in the partition table. Journal evaluation is mainly for the exchange of scientific research activities, not because of the existence and development of scientific research evaluation. The Journal Partition Table is also a journal Evaluation Index, but only a data support for these activities.

How to search? The former is to retrieve Thomson Reuters's Journal Citation Reports? Database (you must have the right to use it. For example, a university library is in the "analysis tool" of "other resources" of web of knowledge .). Click to enter and select the JCR version. The default version is JCR 2011, which is released in July (version was released in July ). Select search for a specific journal and enter the search information as prompted (ISSN is recommended, that is, the international standard publication number of the journal ). Click the publication name (abbreviation) link to display the journal information. Pay attention to "journal rank in categories" and click the "Journal Ranking" icon, A table (This table shows the class name, the number of types of such journals, the ranking of the influencing factors in the class, and the partition) appears. "quartile in category" shows the classification area, such as Q1, which indicates a partition. The latter retrieval, authoritative retrieval platform for JCR journal partition data online platform (http://www.fenqubiao.com /? Aspxautodetectcookiesupport = 1 ). You also need to have the right to use it. (Note: There are many versions on the network, but you should be sure to identify the authenticity. For example, the official release date of JCR journal partition in 2013 is January 1, October 2013, which is earlier than this date .)

I think that the two methods have their own strengths.

Related information:

Online JCR journal partition data platform

Http://www.fenqubiao.com /? Aspxautodetectcookiesupport = 1

JCR journal partition data is the scientific research result of the world scientific frontier Analysis Center of the National Science Library of the Chinese Emy of sciences. JCR journal partition data has been released since January 1, 2004. Since January 1, 2012, JCR journal partition data has been changed to the online version. JCR journal partition data is released in July. If you want to use the journal partition data, register and submit the JCR journal partition data application form.

Functions and features

1. Partition all the journals in the Journal Citation Report (JCR)

2. Provides partition data for big and small disciplinary Classification Systems

3. Search, browse, and download partition data

The main task of the scientific frontier analysis center is to analyze and map the world's scientific frontier and scientific hotspots based on the data of various large databases using the literature metrology methods, data mining and visualization technologies, monitors the development trend of the world's scientific frontier. In the context of the dynamic development of the world's science, we work with strategic scientists to analyze the position and status of Chinese science in the world's science. (Source: http://news.sciencenet.cn/news/Thomsonnews.aspx? Id = 206783)

Wuyishan. Are all "journal partitions" in Citic ?. Http://blog.sciencenet.cn/blog-1557-652613.html (Note: The author is the deputy director of China Science and Technology Information Institute)

The journal partitions made by CITIC are passively made according to the special requirements of scientific research offices of universities or research institutes. For example, a scientific research department of a school wants to divide all sci-source journals into four zones based on the Impact Factors. We want to divide a unit into three zones and we want to divide it into three zones. In fact, the scientific research offices of various units can do this by themselves, but they ask us to do it, and we will do it in the spirit of service. We have not made any value judgment on the Quality of papers in different regions, because we always believe that the high impact factors of any journals are brought up by a small number of high cited papers, not every paper published in journals with high impact factors is a high-level paper.

ISI journal Source Query (calendar year Edition). http://lib.hbu.cn/special_db2.asp

SCI (Science Citation Index scientific Citation Index) is a world-famous journal literature retrieval tool published by the Institute for Scientific Information (ISI, the core journals published worldwide in various disciplines of natural science, including data, science, chemistry, chemistry, agriculture, forestry, medicine, life sciences, astronomy, geography, environment, materials, engineering and technology. Through its strict selection criteria and evaluation procedures, ISI selects the source of the publication, and increases or decreases slightly each year, so that the documents indexed by SCI can fully cover the world's most important and influential research results, in 2013, the SCI extension edition included more than 8600 natural science journals. SSCI and A & HCI are sister indexes of SCI, in 2013, the journals included more than 3100 social science journals and more than 1700 humanities and art journals.
The system data comes from the Journal Citation Reports JCR published by ISI in June 2013 ), the new version of JCR adds new journal evaluation indicators, such as influence factors, feature factor scores, and paper impact scores. For a Sci-recorded Journal, click the journal name link to view the metering statistics of the literature of the previous year of the journal.

Additional reading:

As early as the S and S, the United States used citation analysis to measure and represent scientific performance, which once caused a great debate. In chapter 10 of his monograph "the theory and application of the citation index method", "Citation Analysis of scientists" points out two basic facts: "First, when scientific research institutions become larger and larger, as their role in society becomes more and more important, the recognition of the comments of the persons and groups making the greatest contribution in the institution becomes more difficult, more expensive, and more necessary. Second, citation measurement has been proved to be an effective method for peer expert review. It introduces some useful and objective factors into the evaluation process and only involves a small amount of technical fees for using the survey. Compared with intuition, citation analysis usually takes much time and effort. However, professional evaluation is certainly very important, which is enough to indicate that this investment is correct ." (References: (US) Eugene galfield; translated by Hou Hanqing et al.. Theory and Application of the Citation Index Method. Beijing Library press, 2004.8: 248)

 

 

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[Switch] JCR journal partition and its retrieval method