14 juin 2023 | International, Naval
Hydraulic warfare is here to stay. NATO should plan for it.
Sophisticated tanks and fighter jets are important to shift the balance of power in Ukraine. But water is equally critical.
20 mai 2021 | International, Aérospatial
ULA place sur orbite le satellite de défense anti-missile Sbirs-Geo 5
Le 18 mai, United Launch Alliance (ULA) a placé le satellite d'alerte avancée Sbirs-Geo 5 sur orbite de transfert géostationnaire. SBIRS GEO-5,construit par Lockheed Martin, est le 5ème et dernier satellite rejoignant l'OPIR (Overhead persistent infrared), une constellation équipée de puissants capteurs de surveillance. « Ces gardiens orbitaux 24h/24 et 7j/7 détectent les lancements de missiles, soutiennent la défense antimissile balistique, élargissent la collecte de renseignements techniques et renforcent la connaissance de la situation sur le champ de bataille », précise Lockheed Martin. Estimant que le monde est désormais « un endroit menaçant avec plus de 1000 lancements de missiles balistiques chaque année », Tom McCormick, vice-président de la zone de mission OPIR de Lockheed Martin Space, déclare que le système de satellites SBIRS constitue « le fer de lance de la défense antimissile » afin d'assurer la sécurité nationale et celle des forces armées américaines.
Air & Cosmos du 20 mai
Sur le même sujet
-
-
2 décembre 2024 | International, Aérospatial
Global push for cooperation as space traffic crowds Earth orbit
-
20 avril 2018 | International, C4ISR, Sécurité
DARPA official: To build trust in AI, machines must explain themselves
By: Brandon Knapp Artificially intelligent systems must be able to explain themselves to operators if they are to be trusted, according to an expert from the Defense Advanced Research Agency, who voiced concern that methods used by current AI systems are often masked by mysterious algorithms. “A lot of the machine learning algorithms we're using today, I would tell you ‘good luck,” Fred Kennedy, the director of DARPA's Tactical Technology Office during a panel at Navy League's Sea-Air-Space on April 10. “We have no idea why they know the difference between a cat and a baboon.” “If you start diving down into the neural net that's controlling it,” Kennedy continued, “you quickly discover that the features these algorithms are picking out have very little to do with how humans identify things.” Kennedy's comments were in response to Deputy Assistant Secretary of the Navy for Unmanned Systems Frank Kelley, who described the leap of faith operators must make when dealing with artificially intelligent systems. “You're throwing a master switch on and just praying to God that [Naval Research Laboratory] and John's Hopkins knew what the hell that they were doing,” Kelley said of the process. The key to building trust, according to Kennedy, lies with the machines. “The system has to tell us what it's thinking,” Dr. Kennedy said. “That's where the trust gets built. That's how we start to use and understand them.” DARPA's Explainable Artificial Intelligence program seeks to teach AI how to do just that. The program envisions systems that will have the ability to explain the rationale behind their decisions, characterize their strengths and weaknesses, and describe how they will behave in the future. Such capabilities are designed to improve teamwork between man and machine by encouraging warfighters to trust artificially intelligent systems. “It's always going to be about human-unmanned teaming,” said Kennedy. “There is no doubt about that.” https://www.defensenews.com/home/2018/04/10/darpa-official-to-build-trust-in-ai-machines-must-explain-themselves/