TY - JOUR
T1 - Reconstructing the environment seen by a RWRE
AU - Gantert, Nina
AU - Nagel, Jan
PY - 2014/5/7
Y1 - 2014/5/7
N2 - Consider a walker performing a random walk in an i.i.d. random environment, and assume that the walker tells us at each time the environment it sees at its present location. Given this history of the transition probabilities seen from the walker - but not its trajectory - can we reconstruct the law of the environment? We show that in a one-dimensional environment, the law of the environment can be reconstructed. This model can be seen as a special case of a scenery reconstruction problem, where the steps of the random walker depend on the scenery.
AB - Consider a walker performing a random walk in an i.i.d. random environment, and assume that the walker tells us at each time the environment it sees at its present location. Given this history of the transition probabilities seen from the walker - but not its trajectory - can we reconstruct the law of the environment? We show that in a one-dimensional environment, the law of the environment can be reconstructed. This model can be seen as a special case of a scenery reconstruction problem, where the steps of the random walker depend on the scenery.
KW - Random walk in random environment
KW - Scenery reconstruction
UR - http://www.scopus.com/inward/record.url?scp=84900402942&partnerID=8YFLogxK
U2 - 10.1214/ECP.v19-3013
DO - 10.1214/ECP.v19-3013
M3 - Article
AN - SCOPUS:84900402942
SN - 1083-589X
VL - 19
JO - Electronic Communications in Probability
JF - Electronic Communications in Probability
ER -