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cs.RO2026
VL-MemKnG: Hybrid Memory with a Spatio-Temporal Knowledge Graph for Question Answering over Long Egocentric Navigation Trajectories
Svetlana Lukina, Mohamad Al Mdfaa, Gloria Haro +2
Answering navigation-relevant questions over long egocentric videos requires retrieving and organizing evidence distributed across distant temporal moments while maintaining spatia…
cs.RO2026
EgoWalk: A Multimodal Dataset for Robot Navigation in the Wild
Timur Akhtyamov, Mohamad Al Mdfaa, Javier Antonio Ramirez Benavides +11
Data-driven navigation algorithms are critically dependent on large-scale, high-quality real-world data collection for successful training and robust performance in realistic and u…
cs.RO2026
Spatiotemporal Knowledge Graphs as Persistent Scene Memory for Embodied Question Answering
Mohamad Al Mdfaa, Svetlana Lukina, Timur Akhtyamov +4
Vision-language models (VLMs) demonstrate strong image-level scene understanding, but reasoning over long egocentric video remains costly: because VLMs maintain no persistent memor…