What's H-index and free calculation of Author H-index

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What is H-index

The H-index, or Hirsch index, was recommended by J.E. Hirsch in 2005 and published in the proceedings of the Natural Academy of Sciences, United States of America.

This index is well-defined as the author level quantitative matric calculated by counting the number of publications for which an author has been cited by other authors at least the same number of times.

For example, an author h-index of 10 means he/she has published 10 papers and each of those papers has been cited by other authors at least 10 times.

According to Hirsch, this index is defined as “A scientist has an index h, if his/her Np papers have at least h citations each, and the other (Np-h) papers have no more than h citations each.”

Read:

According to the table below you have published 7 papers in your research carries and as per the Hirsh index rule your highest index might be 7, but it is not so

Do you all 7 papers have each 7 or more citations? The answer is no, because as per the above table, paper number 7 has only one citation. Hence your research h-index is not 7.

However, the Hirsh index includes several limits: Then can it be 6, Do your all 6 papers have every 6 citations or more, the answer is no because paper number 6 has only 2 citations, Hence your research h-index is not 6.

The can it be 5, let’s see can your all 5 papers have each 5 citations or more, the answer is Yes because as per the table data all your first 5 papers have more than 5 citations, Hence your research h-index is not 5.

Therefore, the Hirsh index explanation is that you have an h-index value of 5 if your 5 out of 7 papers have at least 5 citations each, and the other 2 papers have no more than 5 citations each.

The database used to find theH-index

Google Scholar: This is a database where Google calculates the h-index of an author by creating a profile.
This is a database or software program that is used to calculate the h-index for an author who does not have a Google Scholar profile.
Scopus is an indexing agency that calculates the citation chart to generate the h-index for publications from 1970 to the present day.
Web of scienecs: This world-wide known indexing agency has been used to generate the h-index for publication and citation since 1970 by using “Create Citation Report.”

All the above mentioned databases are used for the calculation of the author leval matrics in aacad and eic performance, but each one uses different parameters for its calculation.

Read: Google scholar step to step Guide

What’s m-index or m-value?

There is another value calculated by Hirsh called m value, which is the correction of the h index for time and acts as the indicator of “scientific quality” or carrier length of a scientist.

According to him, m is the “indicator of the successfulness of a Scientist” and can be used to compare the seniority of a scientist.

The m value will be calculated as; m value = h-index (h)/number of years since the first paper (n)

According to this m-value, the researcher or scientists are grouped as;

A scientist is successful if the value of m ≈1 or Hirsch index is 20 after 20 years of scientific activity.
An outstanding scientist, if the value of m ≈2 or Hirsch index is 40 after 20 years of scientific activity,
unique individual, if the value of m ≈3 or Hirsch index is 60 after 20 years or 90 after 30 years of scientific activity.

If the h-index of an author is in the range of 15-20, he/she gets a fellowship in the National Physics Society; if the h-index is 45 or higher, the author gets membership in the National Academy of Science.

Based on these h and m values, the time scale and advancement of tenure for research staff and professors in major research institutes and universities were decided.

Read: What Are Citation Metrics And Why Are They Important

Wrapping Up

This is all about this article and hopes this h-index and calculation information help you in your research journal and help you to calculate your research index

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Note: Different database (Scopus, Web of Science, and Google scholar) calculate the h-index differently, and you will probably experience a difference in the h-index value.

This is because of different matrics or counts of citations received and used for the calculation of h-index in different journals and cover different years.

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General FAQ related to H-index

Q 1. What is H index

It is called Hirsch index was recommended by J.E Hirsch in 2005

Q 2. Use of H-index

It indicates how influential an author has been in scholarly work over the course of his or her career.

Q 3. Calculaton of H index

Specifically, it measures how many papers a person has written and the number of citations they have received.

Q 4. Example of H index calculation

An author h-index 10 means he/she has published 10 papers and each of his papers has been cited by other authors at least 10 times.

What’s H-index and free calculation of Author H-index