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What is the h-index?

The Hirsch index of scholarly output: New measure, ongoing debate. Amanda L. Werhane Kurt F. Wendt Library, UW-Madison. My h-index is bigger than yours!. But more people know who I am!. Edward Witten Physicist h=132. Stephen Hawking Physicist h=62. What is the h-index?.

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What is the h-index?

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  1. The Hirsch index of scholarly output: New measure, ongoing debate Amanda L. Werhane Kurt F. Wendt Library, UW-Madison My h-index is bigger than yours! But more people know who I am! Edward Witten Physicist h=132 Stephen Hawking Physicist h=62 What is the h-index? Who uses the h-index? • A single number representing the scholarly output of a researcher • Proposed in 2005 by J.E. Hirsch of UC San Diego • Less easily skewed than other measures • Also used to rank research topics, institutions/departments, journals • Researchers • Tenure review bodies • Grant and award committees • Marketing staff • Librarians • Implications for liaison work, reference, instruction, • and collection management How is it calculated? Why is it debated? • A researcher/journal/institution/topic has an index of h, if h papers have at least h citations each • In Thomson ISI Web of Science • Conduct a General Search • Automatic: click on “Citation Report”, or, • Manual: sort by “Times Cited” • More complex calculations: see handout • Bibliometric difficulties • Author disambiguation, types of publications • Publication index issues • None comprehensive, delays for new titles - esp. open • access, Google Scholar mysteries, incomparability • Quantification of scholarly output • “Publish or perish” pressure, disciplinary differences

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