Neil Savage in Nature:
In February 2020, with COVID-19 spreading rapidly around the globe and antigen tests hard to come by, some physicians turned to artificial intelligence (AI) to try to diagnose cases1. Some researchers tasked deep neural networks — complex systems that are adept at finding subtle patterns in images — with looking at X-rays and chest computed tomography (CT) scans to quickly distinguish between people with COVID-based pneumonia and those without2. “Early in the COVID-19 pandemic, there was a race to build tools, especially AI tools, to help out,” says Alex DeGrave, a computer engineer at the University of Washington in Seattle. But in that rush, researchers did not notice that many of the AI models had decided to take a few shortcuts.
The AI systems honed their skills by analysing X-rays that had been labelled as either COVID-positive or COVID-negative. They would then use the differences they had spotted between the images to make inferences about new, unlabelled X-rays. But there was a problem. “There wasn’t a lot of data available at the time,” says DeGrave.
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Trained on billions of words from books, news articles, and Wikipedia, artificial intelligence (AI) language models can produce uncannily human prose. They can generate tweets, summarize emails, and translate dozens of languages. They can even write tolerable poetry. And like overachieving students, they quickly master the tests, called benchmarks, that computer scientists devise for them. That was Sam Bowman’s sobering experience when he and his colleagues created a tough new benchmark for language models called GLUE (General Language Understanding Evaluation). GLUE gives AI models the chance to train on data sets containing thousands of sentences and confronts them with nine tasks, such as deciding whether a test sentence is grammatical, assessing its sentiment, or judging whether one sentence logically entails another. After completing the tasks, each model is given an average score.
Last week, Ken Roth, who’s led Human Rights Watch for nearly 30 years, announced that he was stepping down. Over the course of his career, Roth, a former U.S. federal prosecutor, has had a profound impact on the organization and the cause he serves. What was once a modest outfit of some 60 people with a budget of $7 million is now a major global operation of 552 staffers operating in more than 100 countries and with a budget of close to $100 million. But Roth’s tenure hasn’t just been about organization-building or fundraising. In the course of his years with Human Rights Watch, he’s met with dozens of heads of state and worked in more than 50 countries. Under his management, the group shared the 1997 Nobel Peace Prize for working to ban landmines; helped the UN establish the war crimes tribunals for Rwanda and the former Yugoslavia, and then the International Criminal Court; and fought against the use of cluster munitions and child soldiers, among many issues. Along the way, as you’d expect, Roth has made many friends and supporters but also enemies; at various moments, he’s been accused of anti-Semitism (despite being Jewish), been attacked by Republican politicians in the United States, and has been denounced by a long list of autocratic governments, from China to Rwanda. I’ve known Roth for many years and was curious to get his reflections on a career spent fighting for justice, as well as the state of the world today and how it compares to 1993, when he was first named executive director of Human Rights Watch. We spoke about all this and more on Tuesday.
The first tank hadn’t yet rolled across the border before the
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Today almost as many Caribbeans reside overseas than live at home. Outward and inward migration from and to the region provides an illuminating case study into the pattern and history of migration. Immigrant has become a dirty word, a term of abuse. But Caribbean pioneers have been, and continue to be, a great expeditionary force that keeps the world turning.
For the millions who were enraged, disgusted, and shocked by the Capitol riots of January 6, the enduring object of skepticism has been not so much the lie that provoked the riots but the believers themselves. A year out, and book publishers confirmed this, releasing titles that addressed the question still addling public consciousness: How can people believe this shit? A minority of rioters at the Capitol had nefarious intentions rooted in authentic ideology, but most of them conveyed no purpose other than to announce to the world that they believed — specifically, that the 2020 election was hijacked through an international conspiracy — and that nothing could sway their confidence. This belief possessed them, not the other way around.
A major reason why new vaccines are important – and why the world is still dealing with COVID-19 – is the continued emergence of
Concern about the proliferation of hate speech motivates many who oppose the recent acquisition of Twitter by billionaire Elon Musk, who says he plans to turn the
The Court Chamber inside the Pantheon-like building of the Supreme Court of the United States is adorned with marble friezes depicting ancient lawgivers, including Hammurabi, Moses, and Confucius. To begin each session of the Court, at ten o’clock in the morning, the marshal strikes a gavel and commands, “All rise!” The audience goes silent and obeys. The nine Justices, in dark robes, then emerge from behind a heavy velvet curtain to take their seats on the elevated mahogany bench, as the marshal announces, “The Honorable, the Chief Justice and the Associate Justices of the Supreme Court of the United States. Oyez! Oyez! Oyez! All persons having business before the Honorable, the Supreme Court of the United States, are admonished to draw near and give their attention, for the Court is now sitting. God save the United States and this Honorable Court!” It is the closest thing we have, in the American civic sphere, to a papal audience.
Two events occurred Monday night — one historic, the other rather insignificant — which placed an unflattering spotlight on the Supreme Court of the United States. The historic event was that Politico published an unprecedented leak of a draft majority opinion, by Justice Samuel Alito, which would
Russian impresario, Sergei Diaghilev, trained his spyglass on modernism, plotless ballets of pure motion with cubist sets and minimal costumes, but he also knew box office when he saw it, and because his Ballets Russes was a touring company that never performed in the country for which it was named, he also presented fantastic ballets that audiences loved, happy to be cast under the spell of Scheherazade, the Firebird, Giselle. Diaghilev, always ready to go overboard, staged a version of The Sleeping Princess with huge trompe l’oeil sets and over three hundred costumes. Courtiers and princes wore jewelled plumed turbans, ladies of the court were dressed in ornate gowns with trains and capes and gold-buckled shoes. The evil Carabosse had bony arms that ended in claws, a long haphazardly leopard-spotted cloak, conical hat, and in silhouette, she looked like a rat. Critics called the productions a gorgeous calamity. In London, in 1921, it wasn’t Aurora, Keynes fell in love with, but the Lilac Fairy, the creature who put the kingdom to sleep, so as to delay the effects of the jilted fairy’s curse. The Lilac Fairy was danced by Lydia Lopokova, and when attendance fell off, he made sure to sit in empty box where she would notice him.
I have a story in my book about Greenberg that relates to this idea of charms and to formalism. In his book Sade, Fourier, Loyola (1971), Barthes talks about the style of a great writer as the writer’s “charm.” Once, after Greenberg had died, I was asked to be part of a panel at Harvard University in honor of the 80th anniversary of Greenberg’s birth. Heading to Boston on the train I thought, “I can’t be part of this panel celebrating Greenberg and trash him.” I had trashed him, for instance, in The Optical Unconscious — the last part about Jackson Pollock was meant to demolish Greenberg. So, I asked myself, what can I say about Greenberg at Harvard that won’t be hypocritical but will be positive? Then I thought about Barthes’s notion of charm.