Abstract: Vector map is widely used in geographic information system, the military surveying and mapping, etc. The security problem such as copyright authentication, integrity verification, user ...

Abstract: 2D SLAM is useful for mobile robots that are constrained to a 2D plane, for example in a warehouse, simplifying calculations in respect to the 3D case. The use of an IMU in such a context ...

If you’ve ever searched for ways to practice coding or prep for tech interviews, you’ve probably seen LeetCode mentioned everywhere. But in 2025, is LeetCode free, or do you have to pay to get ...