Author's personal copy Percentile Rank and Author Superiority Indexes for Evaluating Individual Journal Articles and the Author's Overall Citation Performance

The paper proposes two new indexes to quantify the citation status of papers and authors. The Percentile Rank Index (PRI) indicates the citation rank of the author's individual papers among the papers published in the same year and source (journal or multi-authored monograph or book.) PRI is independent of the paper's age, specialty, or source journal size. The Author's Superiority Index (ASI) is determined by the number of the author's papers with a PRI at or above a specified value (99, 95, or 75). ASI allows comparisons across specialties and different time periods. The data necessary to calculate both the PRI and ASI can be obtained from Thomson-Reuters database Web of Science (www.isiknowledge.com) or other comparable databases. The quantitative assessment of individual scientists contributions is still a hot question. The now classic paper by Jorge Hirsch[1], which proposed his h-index has already been cited in over 250 papers as of March 2009, and this number continues to grow. The advantages and drawbacks of the h-index are widely discussed. Many modifications of the h-index have been suggested. For a recent review see Bornmann & Daniel[2]. A.LPudovki