ArXiv Reaches a Milestone and a Reckoning

Runaway success and underfunding have led to growing pains for the preprint server. From a report: What started in 1989 as an e-mail list for a few dozen string theorists has now grown to a collection of more than two million papers -- and the central hub for physicists, astronomers, computer scientists, mathematicians and other researchers. On January 3 the preprint server arXiv.org crossed the milestone with a numerical analysis paper entitled "Affine Iterations and Wrapping Effect: Various Approaches." (The Library of Alexandria, for comparison, is believed to have contained no more than hundreds of thousands of manuscripts.) "We're a way for authors to communicate their research results quickly and freely," says Steinn Sigurdsson, a professor of astrophysics at Pennsylvania State University and arXiv's scientific director. Unlike traditional scientific journals, arXiv (pronounced "archive" because the "X" represents the Greek letter chi) allows scientists to share research before it has been peer-reviewed. When submitting to traditional journals, authors frequently wait half a year or more to publish; papers typically appear on arXiv within a day. Authors often submit manuscripts to arXiv and then subsequently publish them in a peer-reviewed journal, but increasingly, papers are released on arXiv alone. Beyond traditional manuscripts, arXiv also contains white papers, historical overviews and even cheeky April Fools' Day papers. "It's like the backbone for our field," says Alex Kohls, head of the Scientific Information Service at CERN, the world's premier organization for particle physics research, located near Geneva. "It's not only a tool for physicists and computer scientists -- it has had an impact on the overall scholarly communication process." For instance, arXiv-inspired preprint servers in the life sciences, such as bioRxiv and medRxiv, have proved invaluable for speeding up biomedical research during the coronavirus pandemic. Growth has been explosive. In 2008, 17 years after it went online, arXiv hit 500,000 papers. By late 2014 that total had doubled to one million. Seven years later arXiv has doubled its library again but continues to grapple with its role: Is it closer to a selective academic journal or more like an online warehouse that indiscriminately collects papers?Amid this confusion, some researchers are concerned about arXiv's moderation policies, which they say lack transparency and have led to papers being unfairly rejected or misclassified. At the same time, arXiv is struggling to improve the diversity of its moderators, who are predominantly men based at U.S. institutions.

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