Abstract: Missing values often occur in multivariate time series, affecting data analysis and applications. Existing studies typically use complete data to train imputation models, which are then used ...

Radio telescopes have long scanned quiet patches of sky for a lone, artificial-sounding ping, but a growing body of research ...

It was marked by the loss of several influential figures in the entertainment industry, moments that cast a long shadow over the year and reminded us how fragile even the most celebrated creative ...

Abstract: Most decentralized optimization algorithms are handcrafted. While endowed with strong theoretical guarantees, these algorithms generally target a broad class of problems, thereby not being ...

Cameron revealed what this choice was in a discussion with Michael Biehn on his Just Fooling About podcast, and it started when Biehn, who played Corporal Hicks in the film, asked Cameron if he was ...

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...

The afternoon of 7 August 1996 isn’t a time that sticks in many people’s minds. But if things had worked out differently, it might have been etched into our collective memory. At 1.15pm, US President ...

The first alien signal humanity detects might not come from a thriving civilization, but rather from one in decline, possibly sending a cry for help. That’s the central idea behind a new paper by ...

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...