The Efficiency of Multimodal Interaction for a Map-based Task Philip Cohen author David McGee author Josh Clow author 2000-04 text Sixth Applied Natural Language Processing Conference Association for Computational Linguistics Seattle, Washington, USA conference publication cohen-etal-2000-efficiency 10.3115/974147.974193 https://aclanthology.org/A00-1046/ 2000-04 331 338