H index can accurately reflect a person's academic performance. The higher a person's H index, the greater the influence of his thesis.
The calculation method of scientists' H factor can be described as: ranking the papers of scientists in a certain period (or all of them) from high to low according to the number of citations, then taking a serial number for each paper, comparing the serial number of each paper with the number of citations, and finding the serial number H, so that the serial number H of this paper is less than or equal to its number of citations, while the serial number H of the next paper (serial number h+ 1) is greater than it.
Extended data
For example, someone's H index is 20, which means that 20 papers have been published, and each paper has been cited at least 20 times. It is very easy to determine a person's H index.
Go to SCI website, find out all published SCI papers, arrange them from high to low according to the number of citations, and check them down until the serial number of a paper is greater than the number of citations. That serial number minus 1 is the H index. Hawking, who is familiar to readers in China, has an H index as high as 62.
Among biologists, Schneider, a neurobiologist and wolf prize in medicine winner from Johns Hopkins University, has the highest H index, and gundam 19 1, followed by Baltimore, a biologist from California Institute of Technology who won the Nobel Prize in Physiology or Medicine, 160. Biologists' H index is on the high side, which shows that H index, like other indicators, is not suitable for interdisciplinary comparison.
Baidu encyclopedia -h index