H-INDEX

"The h-index is an index that attempts to measure both the productivity and citation impact of the published work of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications. The index can also be applied to the productivity and impact of a as well as a group of scientists, such as a department or university or country.

The index was suggested in 2005 by Jorge E Hirsch, as a tool for determining theoretical physicists' relative quality and is sometimes called the Hirsch index or Hirsch number.

The index is based on the distribution of citations received by a given researcher's publications.

A scientist has index h if h of his/her number of papers (Np) have at least h citations each, and the other (Np−h) papers have no more than h citations each. In other words, a scholar with an index of h has published h papers each of which has been cited in other papers at least h times. Thus, the h-index reflects both the number of publications and the number of citations per publication. The index is designed to improve upon simpler measures, such as the total number of citations or publications. The index works properly only for comparing scientists working in the same field; citation conventions differ widely among different fields." (Donald School "H-index and How to Improve it" Journal of Ultrasound in Obstetrics and Gynecology, January-March 2016;10(1):83-89 )

I think you will find relevant information in the links below:

https://www.researchgate.net/post/Does_someone_knows_how_to_get_the_Impact_Factor_of_a_Journal_from_Google_Scholar_metrics

https://www.researchgate.net/post/Does_someone_knows_how_to_get_the_Impact_Factor_of_a_Journal_from_Google_Scholar_metrics

https://www.researchgate.net/post/Relation_of_number_of_reads_and_number_of_citation

Kindly visit my simple priject named "Researchers Skills Improvement" here in RG platform, you will find much details about your question.

Regards,

Emad

H-INDEX

"The h-index is an index that attempts to measure both the productivity and citation impact of the published work of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications. The index can also be applied to the productivity and impact of a as well as a group of scientists, such as a department or university or country.

The index was suggested in 2005 by Jorge E Hirsch, as a tool for determining theoretical physicists' relative quality and is sometimes called the Hirsch index or Hirsch number.

The index is based on the distribution of citations received by a given researcher's publications.

A scientist has index h if h of his/her number of papers (Np) have at least h citations each, and the other (Np−h) papers have no more than h citations each. In other words, a scholar with an index of h has published h papers each of which has been cited in other papers at least h times. Thus, the h-index reflects both the number of publications and the number of citations per publication. The index is designed to improve upon simpler measures, such as the total number of citations or publications. The index works properly only for comparing scientists working in the same field; citation conventions differ widely among different fields." (Donald School "H-index and How to Improve it" Journal of Ultrasound in Obstetrics and Gynecology, January-March 2016;10(1):83-89 )

Good question, useful answers.

in a simple term, a scholar with an h index of h has published h papers each of which has been cited in other papers at least h times .

For example someone may have 10 papers with 10 citations, so his h-index is 10.

Thanks Ms Monica. But h can be 6 also that on what basis it is decided? In some cases it is like that also, that is why I wanted to know the h lavel?

Thanks Dr Ahmed, Dr Olav and Dr Dhiaa Neama Jabbar. h indicates which number 6,7, or 8 or more so that it will be h-index in RG score?

Presentation "CiteScore vs Impact Factor", narrated by: Asst. Prof. Dr. E...

and

Presentation Journal Impact Factors, Researcher h-index, How to improve r...

Regards,

Emad

The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications.

I agree with Sirs:

Dhiaa Neama Jabbar

Mahesh Kumar

They provide very good answers.

Best regards

interesting question .................... following

It related with number of research citation and started with H-index 1 for one citation from research and ( H-index 2) means 2 citations for each research or paper.

Actually h-index referred by research gate on the basis of how many numbers?

It's based on citation but when they will put in the list of h-index..

As we know, the h-index gives a measure of actual scientific productivity and importance of a scientist. The h-index can be manually determined using citation databases or using automatic tools.

Several commonly used databases such as such Google Scholar and ResearchGate provide automatically generated h-index values. Subscription based databases such as Elsevier’s Scopus, Clarivate Analytics’ Web of Science also provide these values. Anne-Wil Harzing's Publish or Perish (https://harzing.com) programme calculates the h-index based on Google Scholar entries. It can also be calculated manually using citation information given in databases such as Google Scholar.

Please note that because of differential coverage, each database is likely to produce a different h index for the same researcher. You may have noticed this when checking Google Scholar h-index and ResearchGate h -index.

Recently, Google has started providing an automatically-calculated i10-index within their own Google Scholar profile. This i10 index provides the number of publications with at least 10 citations.

Thanks Dr George..

But in reserach gate for one author it is 4 citation and for other author it is more then 6 or so, why ?

Dr Rajvir How could this be possible?

Yes I agree with Dr Sheth It is not possible Dr Rajvir.

Dear Dr. Yadav

A situation as you mentioned can not happen. ResearchGate gives you information on three aspects:

h-index

h-index (excluding self-citations) and

top h-rated article

Depending on the number of articles published and citations, h-index differ between authors, whether in ResearchGate or GoogleScholar.

Dear all,

The explanation given by Dr Dhiaa Neama Jabbar regarding is correct and that is internationally accepted and being used by google scholar and many other agencies. However what criteria is being used by Researchgate on H-Index is not very clear as there is hale of differences between the H-index of Research gate and google scholar. There is a need for intervention of Researchgate scientist for such query as many a time it create doubt in the minds of users.

H-index---considers the number of citations that your published articles have been cited. For example, I have several articles with 25+, 5, 5, 4, 3, 2, 2 1, etc. citations. My h-index is 4 because I have at least 4 articles that have been cited at least 4 times. If the article with 4 citations gets an additional citation (25+, 5,5,5,3,2,2,1, etc.), then my h--index would be 5 because I have 4 articles that have been cited at least 5 times. However, if the article with 4 citations stays the same and the articles with 5 citations both become 6 for 25+, 6, 6, 4, 3, 2, 2, 1 etc. my h-index would still be 4 because I have 4 articles with at least 4 citations.

I Agree with Dr. Dhiaa Neama Jabbar.

Dr. Yadav----as my example above shows, it is possible for one researcher to have different H-index based on the number of citations. Not all citations are listed on RG, Google, or other places like Scopus.

To extend my example above, 25+,5,5,4,3,2,2,1 etc. is a 4 h-index for Author 1. Author 2 may be a co-author on some of the first 3 items but have other articles-25+,5, 5, 9, 6, 7, 8,6,2,1,etc. In this case, the h-index would be a 6---6 articles with at least 6 citations. I think that there is confusion because everyone understands that there are a certain number of citations listed for each publication. But, the h-index is a composite of the best representation of the overall productivity of the author. Also, Google and RG are also dependent on who is a member of the group. For me, RG lists only 49 citations but I have more than that on other metrics. It is not a perfect science but just an indication for others to place a tentative value on your output. Perhaps to indicate that you are new to the field. The scale is also useful in certain criteria such as determining the value of a possible book for a specific topic because it would demonstrate some recognition within your field. Many individuals are rejected for great book ideas because they do not have a large enough prospective market based on their h-index. Because I am a health generalist and have published in the field of biomedical engineering, it was not a sure thing at all to have been accepted to publish on environmental science and public health.

Thanks to all friends for nicely reply and interaction. But question remains question?

My question is only, why h-index (no of citatiotions, which can be some min numbers) is decided in research gate..

For example any one check it, there is no minimum citation criteria..

Dear Dr. Rajvir

The problem with ResearchGate 's h-index, I suppose, is due to their database with respect to our publications and number of citations. For example, my citations in ResearchGate is almost half of what is given in GoogleScholar. Consequently, according to GoogleScholar, my h-index is 6 and according to ResearchGate, it is 4!

Thanks Mr Thomas for answer.