Neural networks are central to modern artificial intelligence, yet their training remains highly sensitive to data contamination. Standard neural classifiers are trained by minimizing the categorical cross-entropy loss, corresponding to maximum likelihood estimation under a multinomial model. While statistically efficient under ideal conditions, this approach is highly vulnerable to contaminated observations including label noises corrupting supervision in the output space, and adversarial perturbations inducing worst-case deviations in the input space. In this paper, we propose a unified and statistically grounded framework for robust neural classification that addresses both forms of contamination within a single learning objective. We formulate neural network training as a minimum-divergence estimation problem and introduce rSDNet, a robust learning algorithm based on the general class of $S$-divergences. The resulting training objective inherits robustness properties from classical statistical estimation, automatically down-weighting aberrant observations through model probabilities. We establish essential population-level properties of rSDNet, including Fisher consistency, classification calibration implying Bayes optimality, and robustness guarantees under uniform label noise and infinitesimal feature contamination. Experiments on three benchmark image classification datasets show that rSDNet improves robustness to label corruption and adversarial attacks while maintaining competitive accuracy on clean data, Our results highlight minimum-divergence learning as a principled and effective framework for robust neural classification under heterogeneous data contamination.

Mirror Descent (MD) is a scalable first-order method widely used in large-scale optimization, with applications in image processing, policy optimization, and neural network training. This paper generalizes MD to optimization on Riemannian manifolds. In particular, we develop a Riemannian Mirror Descent (RMD) framework via reparameterization and further propose a stochastic variant of RMD. We also establish non-asymptotic convergence guarantees for both RMD and stochastic RMD. As an application to the Stiefel manifold, our RMD framework reduces to the Curvilinear Gradient Descent (CGD) method proposed in [26]. Moreover, when specializing the stochastic RMD framework to the Stiefel setting, we obtain a stochastic extension of CGD, which effectively addresses large-scale manifold optimization problems.

The reported use of Claude in recent military operations has shifted the Overton window around A.I. in warfare--and sparked a battle between Anthropic and the Department of War. The staff writer Gideon Lewis-Kraus joins Tyler Foggatt to discuss the escalating standoff between the A.I. company Anthropic and the Department of War. They consider recent reporting on the use of Claude--Anthropic's family of large language models--in military operations in Venezuela and Iran, and how that news has pushed the company's relationship with the Pentagon to a breaking point. They also explore how the tech industry is responding to the conflict between the Trump Administration and Anthropic, and the thorny question of whether A.I. should be subject to greater safeguards and more oversight than previous technological innovations. " The Pentagon Went to War with Anthropic. " The Iran War Is Another Reason to Quit Oil," by Bill McKibben " How Should We Remember the Hippies?

Over 200 minerals from a private collection decades in the making are up for bid. An aquamarine with muscovite was found in Nagar District in Gilgit-Baltistan, Pakistan. Breakthroughs, discoveries, and DIY tips sent six days a week. Over 200 colorful minerals will hit the auction block on March 20 as part of Heritage's The Collection of William and Ruth Loomis Fine Minerals Signature Auction . What started as a shared hobby evolved into a lifelong passion that soon will be offered to mineral collectors everywhere.

THE LOST WEDDING PHOTOS: See JFK Jr and Carolyn Bessette at their secret nuptials... and read every intimate detail of ultra-private ceremony Tulsi Gabbard lets Iran nuke bombshell slip as Senate hearing spirals for Trump's embattled spy chief Candace Owens's sickening low-blow at Karoline Leavitt as Iran war sparks wild attacks Lunatic Megyn Kelly is FINALLY ruined! Her appalling X-rated smear of my friend proves it... but now I know her truly disturbing plan: JOSH HAMMER Inside the epidemic of midlife women who are repulsed by their husbands, the age and'vital statistics' that make men most at risk - and the telltale signs YOUR marriage is about to die: Special report by SADIE NICHOLAS Meghan gives glimpse of'mama's little helpers' Archie and Lilibet in'behind the scenes' video of her latest As Ever launch Shameful hypocrisy of NASCAR star Daniel Suarez's nepo-baby wife: 'Victim' mask slips as she ignites new Las Vegas drama... and dark family past rears its ugly head Princess Kate dons her favourite tiara and the late Queen's earrings as she arrives at King's banquet for the Nigerian President in country's first state visit in almost 40 years Everything JFK Jr told friends about his love affair with'sexual dynamo' Madonna... her unprintable pillow talk... and his perverse incest request that she couldn't go through with Site of'Jesus' crucifixion' forced to shut for Holy Week in unprecedented move tied to biblical prophecies of the Antichrist Ugly new Nicole Kidman and Keith Urban divorce fight ERUPTS: Her friends share humiliating details of'midlife crisis'... and reveal brutal REAL reason daughter Sunday Rose'snubbed' him Outrage after Seattle museum vandal destroys $250,000 of famous Dale Chihuly glass at city's museum dedicated to him Amanda Bynes, 39, 'is now a size 4 after losing 35lb' thanks to weight-loss medication... after hitting 180lb Chilling unclassified threat report reveals the'most likely' terror attack scenario on US soil Three's Company bombshell Jenilee Harrison who was also on Dallas and The Love Boat still looks great at 67, see her now The discovery of a Roman artifact in the Americas has sparked a debate about who truly discovered the New World. While Christopher Columbus is hailed as the first in 1492, archaeologists uncovered a small terracotta head of a bearded man carved with distinctive European features tucked inside a Mexican tomb. The artifact, known as the Tecaxic-Calixtlahuaca Head, was discovered in 1933 inside a sealed pre-Hispanic burial beneath multiple intact layers, indicating it had not been disturbed after its placement. Experts say its facial features, beard style and craftsmanship bear a striking resemblance to objects from the ancient Mediterranean rather than indigenous Mesoamerican traditions.

Reviving the Claymills Pumping Station in Staffordshire, England has been a labor of love. Restoration work has progressed steadily for over 30 years. Breakthroughs, discoveries, and DIY tips sent six days a week. It's always good to have a passion project, but what's going on in Staffordshire, England, is likely a one-of-a-kind endeavor. In the town of Burton upon Trent, a rotating team of volunteers has spent over 30 years restoring a Victorian pump house.

Sony removes 135,000 'deepfakes' of its artists' music Music giant Sony Music says it has requested the removal of more than 135,000 songs by fraudsters impersonating its artists on streaming services. The so-called deepfakes were created using generative AI, and targeted some of the company's biggest acts, who include Beyoncé, Queen and Harry Styles In the worst cases, [the deepfakes] potentially damage a release campaign or tarnish the reputation of an artist, said Dennis Kooker, president of Sony's global digital business. The company says the number of songs generated in this fashion is only increasing as artificial intelligence technology becomes cheaper and easier to access. It believes the 135,000 tracks it has discovered to date represents just a percentage of the total uploaded to streaming services. Since last March alone, it has identified some 60,000 songs falsely purporting to feature artists from their roster.

A Colorado woman who spoke with Kurt "CyberGuy" Knutsson was wrongly accused of theft after police relied on surveillance technology that misidentified her vehicle.

Computer says no. Are AI interviews making it harder to get a job? It's brutal, says Bhuvana Chilukuri - a third-year business student who has applied for more than 100 jobs and has been rejected for every one. There are moments where I applied and I got a rejection less than two minutes later, which is really horrible, says the 20-year-old. She is convinced that very few, if any, of her applications are ever seen by a human as firms are increasingly using Artificial Intelligence (AI) to hire new staff. The first step is AI screening your CV.

Pakistan and Afghanistan agree to temporary Eid al-Fitr'pause' in conflict Pakistan and Afghanistan have agreed to a temporary "pause" in hostilities during the Muslim holiday of Eid al-Fitr this week, officials said, amid weeks of deadly violence between the neighbouring countries. Pakistani Information Minister Attaullah Tarar said on Wednesday that the pause - set to run from midnight on Thursday (19:00 GMT on Wednesday) until midnight on Tuesday (19:00 GMT on Monday) - had been requested by Saudi Arabia, Qatar and Turkiye. However, he warned that "in case of any cross-border attack, drone attack or any terrorist incident inside Pakistan, [operations] shall immediately resume with renewed intensity". Shortly after the announcement, a spokesperson for Afghanistan's Taliban government also said it would temporarily suspend military operations against Pakistan. The pause in fighting is set to begin just days after Afghanistan accused the Pakistani military of killing hundreds of people in an air strike on a drug rehabilitation centre in the country's capital, Kabul.