Objectives In patients with chronic obstructive pulmonary disease (COPD), severe exacerbations (ECOPDs) impose significant morbidity and mortality. Current guidelines emphasise using ECOPD history to ...

Abstract: Navigation with radio-signals using GNSS or a terrestrial positioning system in urban environments is susceptible to multipath propagation, which can severely degrade positioning accuracy.

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Abstract: In this paper, we propose a majorization-minimization (MM) based refinement strategy tailored for two-dimensional (2-D) unconditional maximum likelihood (UML) direction-of-arrival (DOA) ...

The ChatGPT-maker is releasing its “best model yet” as it faces new pressures from Google and other AI competitors. OpenAI has introduced GPT-5.2, its smartest artificial intelligence model yet, with ...

OpenAI CEO Sam Altman’s declaration of code red is reportedly bearing fruit already. As per the report, the artificial intelligence (AI) giant is already making breakthroughs, which could result in ...