arXiv Machine Learning By Boyang Li, Yulin Wu, Nuoxian Huang, Wenjia Zhang

GridPE: A Grid Cell-Inspired Unified Position Embedding for Arbitrary-Dimensional Spaces

Read the original on arXiv Machine Learning →

arXiv:2406. 07049v3 Announce Type: replace-cross Abstract: Understanding spatial relationships across all dimensions is fundamental for intelligent systems.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv Machine Learning.

arXiv Machine Learning
Jun 11

Fourier Features Let Agents Learn High Precision Policies with Imitation Learning

arXiv:2606. 12334v1 Announce Type: new Abstract: High-precision robotic manipulation requires fine-grained spatial reasoning that is often difficult to achieve with RGB-only policies due to depth ambiguity and perspective scale issues.

By Bal\'azs Gyenes, Emiliyan Gospodinov, Jan Frieling, Enrico Krohmer, Nicolas Schreiber, Xiaogang Jia, Niklas Freymuth, Gerhard Neumann
arXiv AI
Aug 20

The Role of Grid Cells in Reducing Spatial Aliasing in Hippocampal Place Representations

The article investigates how grid cells can reduce spatial aliasing in hippocampal place representations that arise when boundary vector cell (BVC) inputs alone produce indistinguishable sensory patterns across multiple locations. By integrating analytically constructed grid cell modules with BVC-driven place cells, the study demonstrates a 94–99% reduction in spatial aliasing across three environments, with the greatest improvement in the most visually symmetric maze. The results show that grid cells provide complementary spatial signals that disambiguate perceptually identical locations.

By Alexander Johnson, Obadah Ghizawi, Ali A. Minai