Could Ukraine hold a presidential election right now? Will Europe use frozen Russian assets to fund war? How can Ukraine rebuild China ties? 'Ukraine is running out of men, money and time' A deadly exchange of drone strikes has killed one person in Ukraine and one in Russia and cast doubts on the prospects of a ceasefire before another round of negotiations to end the war next week. News of the deaths comes as Ukrainian President Volodymyr Zelenskyy and US Secretary of State Marco Rubio signalled hurdles to reaching an agreement in Geneva as the conflict is about to enter its fifth year.

This material may not be published, broadcast, rewritten, or redistributed.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 . Timeline: NBC host Savannah Guthrie's mother disappears as sheriff says'everybody's still a suspect' Arizona family sues hospital, says staff'Ubered' sick son to sidewalk where he died Medical examiner determines Texas A&M student's manner of death as family attorney disputes finding: 'Flawed' Dramatic bodycam video captures deputy pulling woman from fiery car wreck: 'I got to her just in time' NJ tech boss convicted of quadruple murder in 2018 killing of brother's family Genealogy company exec slams Pima sheriff's'devastating' move to ship Nancy Guthrie evidence to Florida lab Walmart sales records become critical evidence as FBI investigates Nancy Guthrie's disappearance Feds double Nancy Guthrie reward as former FBI agents suggest they're seeking an insider tip Savannah Guthrie's mother abducted from upscale neighborhood as Tucson crime'spins out of control' SWAT was prepared for possibly'very dangerous' situation in Guthrie case, expert says A man is detained near Nancy Guthrie's house Second Pima County SWAT vehicle seen leaving scene of law enforcement operation in Tucson, Ariz.

While the ImageNet dataset has been driving computer vision research over the past decade, significant label noise and ambiguity have made top-1 accuracy an insufficient measure of further progress.

Neural Information Processing Systems http://nips.cc/

World leaders, including French President Emmanuel Macron, German Chancellor Friedrich Merz and UK Prime Minister Sir Keir Starmer, have been gathering in Munich for Europe's biggest security and defence conference. The burning question on everyone's minds: is America still an ally of Europe? The keynote speech that everyone was waiting for was from Marco Rubio, the US Secretary of State. Would he repeat the attacks made on Europe last year by the US Vice President JD Vance? Or would he be conciliatory?

Plus: Meta plans to add face recognition to its smart glasses, Jared Kushner named as part of whistleblower's mysterious national security complaint, and more. The widespread protests in Iran have exposed both Tehran's brutal tactics in the streets, where state authorities have killed thousands of demonstrators since early January, and extreme measures to block access to the global internet. As it has done repeatedly in the past, the Iranian regime cut off the country's residents from the global internet during the latest anti-government uprising. But it also shut down access to the country's intranet, known as the National Information Network, which new research found is becoming a mechanism of constant and pervasive surveillance that may ultimately be the only way Iranians can get online. The last remaining major nuclear weapons treaty between the United States and Russia just expired.

Identifying causal effects is a key problem of interest across many disciplines. The two long-standing approaches to estimate causal effects are observational and experimental (randomized) studies.

Are lasers the future of anti-drone warfare? A drone appears on the grainy, gray-scaled image of the thermal camera. This is the type of drone used by groups such as Hezbollah, Hamas and the Yemeni Houthis. Seconds later, the wing of the drone snaps off, sending it tumbling down, exploding when it hits the ground. This is a video shared by the Israeli Ministry of Defence and arms producer Rafael, a hint towards the future of anti-drone warfare.

Key attributes (cf. Figure 1) include the challenging task of classifying doppelganger animals,