when I used thid library ,an error occur ,that ValueError: Error initializing torch.distributed using env:// rendezvous: environment variable WORLD_SIZE expected, but not set.I saw the example in this ...

What is the relationship between the life cycle of an AsyncTask and an Activity? What problems can this result in? How can these problems be avoided? An AsyncTask is not tied to the life cycle of the ...

Abstract: Pose graph optimization is the non-convex optimization problem underlying pose-based Simultaneous Localization and Mapping (SLAM). If robot orientations were known, pose graph optimization ...

Abstract: In the context of Global Navigation Satellite System (GNSS) denial environments, positioning can be achieved using low Earth orbit (LEO) satellite signals of opportunity (SOPs). When the ...