A Web-based Evaluation Framework for Spatial Instruction-Giving Systems Srinivasan Janarthanam author Oliver Lemon author Xingkun Liu author 2012-07 text Proceedings of the ACL 2012 System Demonstrations Min Zhang editor Association for Computational Linguistics Jeju Island, Korea conference publication janarthanam-etal-2012-web https://aclanthology.org/P12-3009/ 2012-07 49 54