2021-04-20 · The h-index, or Hirsch index, measures the impact of a particular scientist rather than a journal. "It is defined as the highest number of publications of a scientist that received h or more citations each while the other publications have not more than h citations each."


Verkligt höga h-index kräver ett betydligt större antal citeringar än låga. Implicit innebär ett h-index på till exempel 10 att en har minst 10 artiklar med 10 citeringar eller fler, det vill säga minst 100 citeringar, medan ett h-index på 20 på samma sätt innebär minst 400 citeringar, 30 innebär minst 900 och så vidare. Ett högt h-index blir därför ett mått på att det inte bara har publicerats artiklar, utan att de verkligen befunnits läsvärda av ett stort

Metrics are important. Even scholars who may not entirely agree with the ways in which academic and scientific impact is currently measured and used cannot deny that metrics play a significant role in determining who receives research grants, employment offers and desirable promotions. The JCR Impact Factor table includes the Quartile and Journal Impact Factor (JIF) Percentile for each year. It is advisable to follow the JCR rankings in selecting journals you want to submit your articles to so that you will discover during assessment and promotions that the publications you have are acceptable to your institution based on the Assessment and Promotion’s (A & P) requirements. 2021-02-10 · H5-index "It is the largest number h such that h articles published in [the past 5 years] have at least h citations each".

H index vs impact factor

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Citations to a journal in the JCR year to items published in the previous two years, divided by the total number of citable items (articles and reviews) published in the journal in the previous two years. In case you are unfamiliar with these measures, impact factor is basically the mean number of citations to articles that were published in the past 2 years; H-index is the largest number h such that h articles have at least h citations each. H-index. The h-index is an author-level metric that was invented in 2005 by Jorge Eduardo Hirsch, an Argentine-American professor of physics at the University of California, San Diego. Hirsch is an index that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar by number. Se hela listan på benchfly.com In terms of the first, we used the recently introduced h-index (Hirsch, 2005) and g-index (Egghe, 2006) to measure journal impact rather than the ISI Journal Impact Factor (JIF). In terms of the second, we used Google Scholar instead of the ISI Web of Knowledge as our data source.

Journal impact index: The same as the impact factor, except that it also takes into account journals not included in the Web of Science. Advantages: It is very useful for assessing and classifying

Answer: That’s a very interesting question. The journal impact factor and h index are different in their fundamental design: The former is used to measure journal prestige, while the latter is used to measure researcher impact.

The h-index The h-index is short for the Hirsch index, which was introduced by Jorge E. Hirsch (2005 ) as a way to quantify the productivity and impact of an individual author. Similar to how the IF is now be used to measure a journal or an author to their scientific field, the h-index has become another measure of relative impact of scientific publications.

• The h-index can be easily obtained by anyone with access to the Thomson ISI Web of Science and in addition it is easy to understand.

H index vs impact factor

The impact factor is commonly used when measuring journal prestige, whereas the h index is used when measuring researcher impact. It is very hard to compare the two phenomena when making decisions Then the Impact factor of the Journal should be (1298/541)= 2.40 IF. How H-Index is calculated? The h-index is a factor determining both the quantity and quality of a scientist’s research output. The h- index is based on a list of publications ranked in descending order by the number of actions these publications received. h-Index. The h-index is totally different compared to impact factor as it measures a researcher or scientist performance based on his or her research publications and lifetime citations. For example, their h-index is 91 if 91 articles have each received at least 91 citations.

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The h-index The h-index is short for the Hirsch index, which was introduced by Jorge E. Hirsch (2005 ) as a way to quantify the productivity and impact of an individual author. Similar to how the IF is now be used to measure a journal or an author to their scientific field, the h-index has become another measure of relative impact of scientific publications. (impact factor, total number of documents, total number of citations, citation per paper rate and number of highly cited papers).
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31 Dec 2014 I have seen several different metrics that are applied for ranking journals: Impact Factor, SJR, and H-index. Which of these is the most useful 

The term altmetrics was proposed in 2010, as a generalization of article level metrics, and has its roots in the #altmetrics hashtag. Although altmetrics are often thought of as metrics about articles, they can … For further information please visit the individual websites of Clarivate Analytics, SCOPUS, CWTS, SJR, Scimago H Index, and Google Scholar Metrics. Journal Impact Factor (Clarivate Analytics) The annual Journal Citation Report Impact Factor is a ratio between citations and recent citable items published.

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The advantage of the h-index is that it combines productivity (i.e. number of papers produced) and impact (number of citations) in a single number. So, both productivity and impact are required for a high h-index; neither a few highly cited papers nor a long list of papers with only a handful of (or no!) citations will yield a high h-index.

While the basic calculation of the h-index is consistent across databases, the result can vary depending on a 2004-09-01 · Blue represents the Five-Year Impact Factor of the journal. The Five-Year Impact Factor is calculated by the following formula: [Citations in current year to articles/items published in the last five years] divided by [Total number of articles/items published in the last five years] Orange represents the h-index (Hirsch index) 1 and g-index of 2021-03-12 · The h index Expresses the journal's number of articles (h) that have received at least h citations. It quantifies both journal scientific productivity and scientific impact and it is also applicable to scientists, countries, etc. Author’s total article count = 33; 18 of the articles are cited at least 18 times; h-index = 18 The human body is made up of several critical systems — one of which is the digestive system — that are essential to our health. When the digestive system isn’t working properly, the consequences can become uncomfortable and painful very qu Helicobacter pylori (H.

A few notable modifications are the m- and g- and e-indices. The m-index, introduced by the creator of the h-index, is defined as the h-index divided by the number of years since the researcher’s first publication. The index is meant to normalize the h-index so that early- and late-stage scientists can be compared.

2021-01-07 The h-index has become an indicator of quality for many researchers and may influence the allocation It is based on the number of articles they publish in so-called high impact factor journals. 2020-09-04 Impact Factor Bulletin of Marine Science Phytochemistry Citations versus Impact Factor of all papers (2002-2004) Note that the papers with the greatest number of citations are not amongst those published in the journals with the highest Impact Factors. (Nb. Horizontal lines are one citation per year, based on data corrected to 2002) the h-index A composite of productivity and citation impact, h-index is defined as the greatest number of publications h for which the count of lifetime citations is greater than or equal to h. Being bound at the upper limit only by total productivity, h-index favours older and more productive authors and journals. 2014-08-11 2021-04-20 In scholarly and scientific publishing, altmetrics are non-traditional bibliometrics proposed as an alternative or complement to more traditional citation impact metrics, such as impact factor and h-index.

The h-median of a publication is the median of the citation counts in its h-core.