Deborah Estrin has been ranked No. 2

The August 2007 issue of Nature discusses the “h-index,”—a metric proposed by Jorge Hirsch (UC San Diego) that ranks researchers by the number n of their papers that have all received at least n citations. Under this ranking index, Deborah Estrin has been ranked No. 2 (worldwide) in the field of computer science. Her score of “68” means that 68 of her papers have been cited at least 68 times each. Proponents of the h-index feel that it is substantially better than other indices, and that it even predicts future productivity better than does a record of past productivity.