Author

Sagun Shrestha

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#artificial intelligence Preprint Sep 2026

Automotive mmWave Spinning Radar Place Recognition with Spatially Gated Feature-Correlation Representation

SGCA-Net is proposed, a spinning radar place recognition framework that combines rotation-robust feature extraction with Spatially Gated Correlation Aggregation (SGCA) and consistently outperforms SOTA methods across urban, campus, and open-road environments, while remaining robust to substantial heading variation.

Saimunur Rahman, Sagun Shrestha, Abdelwahed Khamis et al. · 0 citations

Preprint Jul 2026

GemNav: Discrete-Token Visual Robot Navigation using a Multimodal Large Language Model

GemNav is introduced, a visual robot navigation policy that adapts a frozen Multimodal Large Language Model (MLLM) for short-to-medium horizon waypoint navigation using Low-Rank Adaptation (LoRA) on the language tower alone, and results indicate that discrete-token adaptation of frozen MLLMs can provide a data-efficien...

Peter Bohm, Saimunur Rahman, Abdelwahed Khamis et al. · 0 citations