TY - GEN
T1 - Canadian traveler problem with remote sensing
AU - Bnaya, Zahy
AU - Felner, Ariel
AU - Shimony, Solomon Eyal
PY - 2009/1/1
Y1 - 2009/1/1
N2 - The Canadian Traveler Problem (CTP) is a navigation problem where a graph is initially known, but some edges may be blocked with a known probability. The task is to minimize travel effort of reaching the goal. We generalize CTP to allow for remote sensing actions, now requiring minimization of the sum of the travel cost and the remote sensing cost. Finding optimal policies for both versions is intractable. We provide optimal solutions for special case graphs. We then develop a framework that utilizes heuristics to determine when and where to sense the environment in order to minimize total costs. Several such heuristics, based on the expected total cost are introduced. Empirical evaluations show the benefits of our heuristics and support some of the theoretical results.
AB - The Canadian Traveler Problem (CTP) is a navigation problem where a graph is initially known, but some edges may be blocked with a known probability. The task is to minimize travel effort of reaching the goal. We generalize CTP to allow for remote sensing actions, now requiring minimization of the sum of the travel cost and the remote sensing cost. Finding optimal policies for both versions is intractable. We provide optimal solutions for special case graphs. We then develop a framework that utilizes heuristics to determine when and where to sense the environment in order to minimize total costs. Several such heuristics, based on the expected total cost are introduced. Empirical evaluations show the benefits of our heuristics and support some of the theoretical results.
UR - http://www.scopus.com/inward/record.url?scp=77958529976&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77958529976
SN - 9781577354260
T3 - IJCAI International Joint Conference on Artificial Intelligence
SP - 437
EP - 442
BT - IJCAI-09 - Proceedings of the 21st International Joint Conference on Artificial Intelligence
PB - International Joint Conferences on Artificial Intelligence
T2 - 21st International Joint Conference on Artificial Intelligence, IJCAI 2009
Y2 - 11 July 2009 through 16 July 2009
ER -