Re:Does anyone know ? (Score 1)

For the initial part of the task ("get from the front doors to the area of the registration desk"), Grace has no a priori information, relying on the directions given by the human it interacts with. After Grace has registered and been "given" a map, she uses a map built the night before to navigate to the location where she's to give her talk. The map, however, only includes the static environment; the navigation & localization software must deal with dynamic obstacles (such as the crowds surrounding the robot).