Efficient Topological Exploration
Type of publication:  Inproceedings 
Citation:  rekleitis_dujmovic_dudek_99_efficient 
Booktitle:  Proceedings 1999 {IEEE} International Conference on Robotics and Automation ({ICRA}99) 
Year:  1999 
Pages:  676681 
ISBN:  0780351800 
Abstract:  We consider the robot exploration of a planar graphlike world. The robot's goal is to build a complete map of its environment. The environment is modeled as an arbitrary undirected planar graph which is initially unknown to the robot. The robot cannot distinguish vertices and edges that it has explored from the unexplored ones. The robot is assumed to be able to autonomously traverse graph edges, recognize when it has reached a vertex, and enumerate edges incident upon the current vertex. The robot cannot measure distances nor does it have a compass, but it is equipped with a single marker that it can leave at a vertex and sense if the marker is present at a newly visited vertex. The total number of edges traversed while constructing a map of a graph is used as a measure of performance. We present an efficient algorithm for learning an unknown, undirected planar graph by a robot equipped with one marker. Experimental results obtained by running a large collection of example worlds are presented. 
Userfields:  dateadded={20120903 15:47:30 +0200}, datemodified={20120903 15:47:30 +0200}, notes={Interesting literature links: Chatila / Laumond (1985): Position referencing and consistent world modelling for mobile robots (topological map representations form metrical data) Kuipers / Levitt (1988): Navigation and mapping in largescale space (metric maps from topological representations) Arkin (1990): Integrating behavioural, perceptual, and world knowledge in reactive navigation (combining metric and topological aspects) Engelson / McDermott (1992): Error correction in mobile robot map learning (comb metric and top. aspects) Deng / Papdimitriou (1990): Exploring an unknown graph (theoretical issues covering an unknown graph using topological exploration) Dudek (1988): Segmentation using information from multiple features (one marker mapping) Dudek / Jenkin / Milios / Wilkes (1991): Robotic exploration as graph construction (one marker mapping) Deng / Mirzaian (1996): Competitive robot mapping with homogeneous markers (one marker mapping) Dudek / Freedman / Hadjres (1992): Algorithms for active exploration of unknown environments (alternative models of the environments using topological exploration) Dudek / Jenkin / Milios / Wilkes (1997): On building and navigating with a globally topological but locally metric map (same with limited amount of metric data) Dudek / Jenkin / Milios / Wilkes (1997): Map validation and robot selfloca(li?)zation in a graphlike world (map verification, robot localization) Dudek / Freedman / Hadjres (1993): Using local information in a nonlocal way for mapping graphlike worlds (map verification, robot localization)}, project={fremdliteratur}, registry={A83}, state={printed}, 
Keywords:  graph theory, LEARNING (ARTIFICIAL INTELLIGENCE), learning algorithm, mobile robot, mobile robots, PATH PLANNING, robot vision, ROBOT VISION topological exploration, undirected planar graph 
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