tailieunhanh - Báo cáo khoa học: "Generation of landmark-based navigation instructions from open-source data"

We present a system for the real-time generation of car navigation instructions with landmarks. Our system relies exclusively on freely available map data from OpenStreetMap, organizes its output to fit into the available time until the next driving maneuver, and reacts in real time to driving errors. We show that female users spend significantly less time looking away from the road when using our system compared to a baseline system. | Generation of landmark-based navigation instructions from open-source data Markus Drager Dept. of Computational Linguistics Saarland University mdraeger@ Alexander Koller Dept. of Linguistics University of Potsdam koller@ Abstract We present a system for the real-time generation of car navigation instructions with landmarks. Our system relies exclusively on freely available map data from OpenStreetMap organizes its output to fit into the available time until the next driving maneuver and reacts in real time to driving errors. We show that female users spend significantly less time looking away from the road when using our system compared to a baseline system. 1 Introduction Systems that generate route instructions are becoming an increasingly interesting application area for natural language generation NLG systems. Car navigation systems are ubiquitous already and with the increased availability of powerful mobile devices the wide-spread use of pedestrian navigation systems is on the horizon. One area in which NLG systems could improve existing navigation systems is in the use of landmarks which would enable them to generate instructions such as turn right after the church instead of after 300 meters . It has been shown in human-human studies that landmark-based route instructions are easier to understand Lovelace et al. 1999 than distance-based ones and reduce driver distraction in in-car settings Burnett 2000 which is crucial for improved traffic safety Stutts et al. 2001 . From an NLG perspective navigation systems are an obvious application area for situated generation for which there has recently been increasing interest see . Lessmann et al. 2006 Koller et al. 2010 Striegnitz and Majda 2009 . Current commercial navigation systems use only trivial NLG technology and in particular are limited to distance-based route instructions. Even in academic research there has been remarkably little work on NLG for landmark-based .