Devastating secret message in Savannah Guthrie's video appeal to mother's captors: Hidden agenda revealed by FBI hostage negotiator Crime scene tape goes back up outside missing Nancy Guthrie's home as FBI deploys hostage negotiators to family Savannah Guthrie says'we are ready to talk' as she breaks down in tears during gut-wrenching video while pleading to her mother's captors FBI's Kash Patel heads to Tucson in search for Nancy Guthrie amid daughter Savannah's desperate plea Khloe Kardashian, Jennifer Lopez, and Hoda Kotb lead stars rallying around Savannah Guthrie as she makes tearful plea to her mother's captors Big Short investor proved right in $1bn bet that stock bubble bursting... in dire warning for Wall Street and 401(k)s'I was just laid off in the middle of a WAR ZONE': Distraught Washington Post journalist blasts paper for firing her while she sheltered in Ukraine Melania Trump bombshell stuns Hollywood into silence: Rich and famous gathered at elite restaurants to'laugh' about First Lady rumor... now they have'egg on their faces' Woman who went viral on the Coldplay kiss cam cashes in on her fame as she lands keynote gig in Washington DC - and tickets aren't cheap Epstein claimed Bill Gates was'so cheap' he left Russian mistress broke and sleeping on a friend's couch Where's Fergie...? Ex-Duchess of York's whereabouts is a mystery as she's homeless after Royal Lodge eviction - and Epstein emails shame No, Margot Robbie and Jacob Elordi aren't having an affair... What's REALLY going on is so much worse. I rode with ICE on the frozen streets of Minneapolis. I saw migrants getting arrested. The frontlines are nothing like what you see on TV. READ MORE: Are YOU a good flirt?

This material may not be published, broadcast, rewritten, or redistributed. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset . Powered and implemented by FactSet Digital Solutions . Mutual Fund and ETF data provided by LSEG .

SINGAPORE - Several U.S. drone firms made their debuts at the Singapore Airshow this week, seeking to expand their business beyond the Pentagon to countries in Asia that are increasingly concerned about the threat posed by China's military buildup. The lethal success of drones on both sides of Russia's war in Ukraine has sparked a surge of Silicon Valley investment in drone and military artificial intelligence startups, boosting the valuations of U.S. firms like California-based Anduril Industries and Shield AI. This wave of interest in the next generation of warfare is reshaping the character of major air shows that have been long-dominated by gleaming commercial airliners, daredevil fighter jets and troop-carrying helicopters. In a time of both misinformation and too much information, quality journalism is more crucial than ever. By subscribing, you can help us get the story right. With your current subscription plan you can comment on stories.

University of Tokyo professor recommended for U.N. panel on AI Yutaka Matsuo, professor of the University of Tokyo's graduate school of engineering, has been named among 40 experts to sit on a U.N. panel on AI. | JIJI NEW YORK - Yutaka Matsuo, professor of the University of Tokyo's graduate school of engineering, has been named among the 40 experts who have been recommended by the United Nations' head to sit on the new Independent International Scientific Panel on Artificial Intelligence. U.N. Secretary-General Antonio Guterres announced on Wednesday the list of the 40 experts recommended for the panel set up under a General Assembly resolution that passed last August. The selection is expected to be approved by the General Assembly soon. Guterres said the panel would be the first global, fully independent scientific body dedicated to helping close the AI knowledge gap and assess the real impacts of AI across economies and societies. At a time of deep geopolitical tension and growing technological rivalry, we urgently need common ground, he said. That is what this panel can help deliver.

Devastating secret message in Savannah Guthrie's video appeal to mother's captors: Hidden agenda revealed by FBI hostage negotiator Crime scene tape goes back up outside missing Nancy Guthrie's home as FBI deploys hostage negotiators to family Savannah Guthrie says'we are ready to talk' as she breaks down in tears during gut-wrenching video while pleading to her mother's captors FBI's Kash Patel heads to Tucson in search for Nancy Guthrie amid daughter Savannah's desperate plea Khloe Kardashian, Jennifer Lopez, and Hoda Kotb lead stars rallying around Savannah Guthrie as she makes tearful plea to her mother's captors Big Short investor proved right in $1bn bet that stock bubble bursting... in dire warning for Wall Street and 401(k)s'I was just laid off in the middle of a WAR ZONE': Distraught Washington Post journalist blasts paper for firing her while she sheltered in Ukraine Melania Trump bombshell stuns Hollywood into silence: Rich and famous gathered at elite restaurants to'laugh' about First Lady rumor... now they have'egg on their faces' Woman who went viral on the Coldplay kiss cam cashes in on her fame as she lands keynote gig in Washington DC - and tickets aren't cheap Epstein claimed Bill Gates was'so cheap' he left Russian mistress broke and sleeping on a friend's couch Where's Fergie...? Ex-Duchess of York's whereabouts is a mystery as she's homeless after Royal Lodge eviction - and Epstein emails shame No, Margot Robbie and Jacob Elordi aren't having an affair... What's REALLY going on is so much worse. I rode with ICE on the frozen streets of Minneapolis. I saw migrants getting arrested. The frontlines are nothing like what you see on TV. New video from a US military drone has captured what UFO investigators are calling a formation of mysterious orbs flying over one of the most contentious regions in the world.

Things to Do in L.A. Tap to enable a layout that focuses on the article. Labor unions urge Gov. Gavin Newsom, California lawmakers to rein in artificial intelligence Lorena Gonzalez, with the California Labor Federation, supports legislation to protect workers from AI. This is read by an automated voice. Please report any issues or inconsistencies here . Labor unions urge Gov. Gavin Newsom to protect workers from AI-driven job losses and workplace surveillance.

A woman walks near the site of an apartment building hit by a Russian drone strike in Kyiv on Tuesday. KYIV - Ukrainian and Russian officials wrapped up a productive first day of new U.S.-brokered talks in Abu Dhabi, Kyiv's lead negotiator said on Wednesday, as fighting in Europe's biggest conflict since World War II raged on. The two-day trilateral meetings come after Ukraine President Volodymyr Zelenskyy said Russia had exploited a U.S.-backed energy truce last week to stockpile munitions, attacking Ukraine with a record number of ballistic missiles on Tuesday. The work was substantive and productive, focused on concrete steps and practical solutions, Rustem Umerov, the head of Ukraine's National Security and Defense Council, wrote on X. In a time of both misinformation and too much information, quality journalism is more crucial than ever.

Alphabet reports $34.5bn profit and revenue soars 48% in recent quarter as it plans a sharp increase in AI spending Google's parent company, Alphabet, beat Wall Street expectations on Wednesday, and is planning a sharp increase in capital spending in 2026 as it continues to invest deeply in AI infrastructure. Alphabet on Wednesday reported profit of $34.5bn in the recently ended quarter, as revenue from cloud computing soared 48%. In an earnings call, investors pressed Alphabet's chief executive, Sundar Pichai, on the significant increase. "We've been supply constrained, even as we've been ramping up our capacity. Obviously, our CapEx spend this year is an eye towards the future," Pichai said, in response.

Training modern large language models (LLMs) has become a veritable smorgasbord of algorithms and datasets designed to elicit particular behaviors, making it critical to develop techniques to understand the effects of datasets on the model's properties. This is exacerbated by recent experiments that show datasets can transmit signals that are not directly observable from individual datapoints, posing a conceptual challenge for dataset-centric understandings of LLM training and suggesting a missing fundamental account of such phenomena. Towards understanding such effects, inspired by recent work on the linear structure of LLMs, we uncover a general mechanism through which hidden subtexts can arise in generic datasets. We introduce Logit-Linear-Selection (LLS), a method that prescribes how to select subsets of a generic preference dataset to elicit a wide range of hidden effects. We apply LLS to discover subsets of real-world datasets so that models trained on them exhibit behaviors ranging from having specific preferences, to responding to prompts in a different language not present in the dataset, to taking on a different persona. Crucially, the effect persists for the selected subset, across models with varying architectures, supporting its generality and universality.

Deep learning has achieved remarkable success across a wide range of domains, significantly expanding the frontiers of what is achievable in artificial intelligence. Yet, despite these advances, critical challenges remain -- most notably, ensuring robustness to small input perturbations and generalization to out-of-distribution data. These critical challenges underscore the need to understand the underlying fundamental principles that govern robustness and generalization. Among the theoretical tools available, Lipschitz continuity plays a pivotal role in governing the fundamental properties of neural networks related to robustness and generalization. It quantifies the worst-case sensitivity of network's outputs to small input perturbations. While its importance is widely acknowledged, prior research has predominantly focused on empirical regularization approaches based on Lipschitz constraints, leaving the underlying principles less explored. This thesis seeks to advance a principled understanding of the principles of Lipschitz continuity in neural networks within the paradigm of machine learning, examined from two complementary perspectives: an internal perspective -- focusing on the temporal evolution of Lipschitz continuity in neural networks during training (i.e., training dynamics); and an external perspective -- investigating how Lipschitz continuity modulates the behavior of neural networks with respect to features in the input data, particularly its role in governing frequency signal propagation (i.e., modulation of frequency signal propagation).