Communications of the ACM

How NASA Built Artemis II’s Fault-Tolerant Computer

To take humans back to the Moon, NASA has engineered a "fail-silent" architecture that handles everything from cosmic-ray bit ...

Leaker: Apple Will Release iPhone Air 2 No Matter How Badly It May Sell

Despite the iPhone Air's struggling sales, a known leaker claims Apple will push ahead with at least two generations of the ...

The Wait is Over: iPad Mini 2026 Leaks Confirm the OLED Upgrade

New leaks suggest the 2026 iPad Mini 8 will feature a stunning OLED display and the A19 Pro chip. Rumored for an October ...

Dual Cameras and No Screen: Inside the Secret Specs of Apple’s AI Pin

Leaked specs for Apple’s AI Pin reveal a bold "No Screen" design and an advanced dual-camera array. More details on this new ...

Leaker battle: September folding iPhone launch still on the cards

After an overnight report guessing otherwise, another leaker claims that the iPhone Fold will be launched in September. Time ...
IEEE

Q-Learning Methods for LQR Control of Completely Unknown Discrete-Time Linear Systems

Abstract: This paper focuses on solving the linear quadratic regulator problem for discrete-time linear systems without knowing system matrices. The classical Q-learning methods for linear systems can ...
IEEE

Cooperative Optimal Output Tracking for Discrete-Time Multiagent Systems: Stabilizing Policy Iteration Frameworks

Abstract: This paper proposes two cooperative optimal output tracking (COOT) algorithms based on policy iteration (PI) for discrete-time multi-agent systems with unknown model parameters. First, we ...