LONDON: Twitter Inc. said on Friday it will launch a competition for computer researchers and hackers to identify biases in its image-cropping algorithm, after a group of researchers previously found the algorithm tended to exclude Black people and men.
The competition is part of a wider effort across the tech industry to ensure artificial intelligence technologies act ethically.
The social networking company said in a blog post that the bounty competition was aimed at identifying “potential harms of this algorithm beyond what we identified ourselves.”
Following criticism last year about image previews in posts excluding Black people’s faces, the company said in May a study by three of its machine learning researchers found an 8 percent difference from demographic parity in favor of women, and a 4 percent favor toward white individuals.
Twitter released publicly the computer code that decides how images are cropped in the Twitter feed, and said on Friday participants are asked to find how the algorithm could cause harm, such as stereotyping or denigrating any group of people.
The winners will receive cash prizes ranging from $500 to $3,500 and will be invited to present their work at a workshop hosted by Twitter at DEF CON in August, one of largest hacker conferences held annually in Las Vegas.
Twitter launches competition to find biases in its image-cropping algorithm
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Twitter launches competition to find biases in its image-cropping algorithm
- Twitter launches competition for computer researchers and hackers to identify biases in its image-cropping algorithm
- The competition is part of a wider effort across the tech industry to ensure artificial intelligence technologies act ethically
Gabon cuts off Facebook, TikTok after protests
Libreville, Gabon: Facebook and TikTok were no longer available in Gabon on Wednesday, AFP journalists said, after regulators said they were suspending social media over national security concerns amid anti-government protests.
Gabon’s media regulator on Tuesday announced the suspension of social media platforms until further notice, saying that online posts were stoking conflict.
The High Authority for Communication imposed “the immediate suspension of social media platforms in Gabon,” its spokesman Jean-Claude Mendome said in a televised statement.
He said “inappropriate, defamatory, hateful, and insulting content” was undermining “human dignity, public morality, the honor of citizens, social cohesion, the stability of the Republic’s institutions, and national security.”
The communications body spokesman also cited the “spread of false information,” “cyberbullying” and “unauthorized disclosure of personal data” as reasons for the decision.
“These actions are likely, in the case of Gabon, to generate social conflict, destabilize the institutions of the Republic, and seriously jeopardize national unity, democratic progress, and achievements,” he added.
The regulator did not specify any social media platforms that would be included in the ban.
But it said “freedom of expression, including freedom of comment and criticism,” remained “a fundamental right enshrined in Gabon.”
‘Climate of fear’
Less than a year after being elected, Gabonese President Brice Oligui Nguema has faced his first wave of social unrest, with teachers on strike and other civil servants threatening to do the same.
School teachers began striking over pay and conditions in December and protests over similar demands have since spread to other public sectors — health, higher education and broadcasting.
Opposition leader Alain-Claude Billie-By-Nze said the social media crackdown imposed “a climate of fear and repression” in the central African state.
In an overnight post on Facebook, he called on civil groups “and all Gabonese people dedicated to freedom to mobilize and block this liberty-destroying excess.”
The last action by teachers took place in 2022 under then president Ali Bongo, whose family ruled the small central African country for 55 years.
Oligui overthrew Bongo in a military coup a few months later and acted on some of the teachers’ concerns, buying calm during the two-year transition period that led up to the presidential election in April 2025.
He won that election with a huge majority, generating high expectations with promises that he would turn the country around and improve living standards.
A wage freeze decided a decade ago by the Bongo government has left teachers struggling to cope with the rising cost of living.
Authorities last month arrested two prominent figures from the teachers’ protest movement, leaving teachers and parents afraid to discuss the strike in public.
