Another notable measure is the h-index – conceived by the physicist Jorge Hirsch – which aims to measure scholars’ productivity and impact. H-index accounting is straightforward: if a researcher publishes 20 papers that have each been cited at least 20 times, she has an h-index of 20.
另一个值得关注的指标是h指数。该指标由物理学家乔治·赫西（Jorge Hirsch）提出，旨在衡量学者的生产率和影响。H指数的计量方法非常直观：某研究者发表了20篇文章，每篇文章至少被引用了20次，则他的h指数就是20。如果他发表了34篇文章，每篇文章被引用至少34次，则它的h指数就是34。