AUTHOR=Taniguchi Akira , Ito Shuya , Taniguchi Tadahiro TITLE=Hierarchical Path-planning from Speech Instructions with Spatial Concept-based Topometric Semantic Mapping JOURNAL=Frontiers in Robotics and AI VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2024.1291426 DOI=10.3389/frobt.2024.1291426 ISSN=2296-9144