Abstract: The Tianmu-1 constellation is mainly based on BeiDou/Global Navigation Satellite System radio occultation (GNSS-RO) and BeiDou/GNSS reflectometry (GNSS-R) remote sensing technology, which ...

Abstract: Efficiently finding similar items in large datasets is a crucial task with applications in various domains. This abstract presents a survey of algorithms and techniques designed for this ...

Google released the December 2025 core update today, the company announced. This is the third core update of 2025 and the fourth major Google algorithm update overall. Earlier this year, Google rolled ...

Background: As the main cause of maternal deaths in early pregnancy, delayed diagnosis of ectopic pregnancy (EP) may lead to severe consequences. Patients with pregnancy of unknown location (PUL) ...