Sciweavers

EJC
2007
13 years 10 months ago
Deterministic random walks on the integers
Jim Propp’s P-machine, also known as the ‘rotor router model’ is a simple deterministic process that simulates a random walk on a graph. Instead of distributing chips to ran...
Joshua N. Cooper, Benjamin Doerr, Joel H. Spencer,...
IJAHUC
2008
118views more  IJAHUC 2008»
13 years 11 months ago
Analysis models for unguided search in unstructured P2P networks
: Random walk and flooding are basic mechanisms for searching unstructured overlays. This paper shows that node coverage is an important metric for query performance in random grap...
Bin Wu, Ajay D. Kshemkalyani
ENDM
2006
70views more  ENDM 2006»
13 years 11 months ago
Quasirandomness in Graphs
Jim Propp's rotor router model is a simple deterministic analogue of a random walk. Instead of distributing chips randomly, it serves the neighbors in a fixed order. We analy...
Benjamin Doerr, Tobias Friedrich
DAM
2008
88views more  DAM 2008»
13 years 11 months ago
Stochastic applications of media theory: Random walks on weak orders or partial orders
This paper presents the axioms of a real time random walk on the set of states of a medium and some of their consequences, such as the asymptotic probabilities of the states. The ...
Jean-Claude Falmagne, Yung-Fong Hsu, Fabio Leite, ...
CSC
2009
13 years 12 months ago
Improving Random Walk Performance
Random walk simulation is employed in many experimental algorithmic applications. Efficient execution on modern computer architectures demands that the random walk be implemented t...
Ilya Safro, Paul D. Hovland, Jaewook Shin, Michell...
AAAI
1994
14 years 5 days ago
Noise Strategies for Improving Local Search
It has recently been shown that local search is surprisingly good at nding satisfying assignments for certain computationally hard classes of CNF formulas. The performance of basi...
Bart Selman, Henry A. Kautz, Bram Cohen
SODA
2003
ACM
115views Algorithms» more  SODA 2003»
14 years 6 days ago
Random walks on the vertices of transportation polytopes with constant number of sources
We consider the problem of uniformly sampling a vertex of a transportation polytope with m sources and n destinations, where m is a constant. We analyse a natural random walk on t...
Mary Cryan, Martin E. Dyer, Haiko Müller, Lee...
WSC
2001
14 years 6 days ago
Efficient simulation for discrete path-dependent option pricing
In this paper we present an algorithm for simulating functions of the minimum and terminal value for a random walk with Gaussian increments. These expectations arise in connection...
James M. Calvin
AAAI
2004
14 years 7 days ago
Towards Efficient Sampling: Exploiting Random Walk Strategies
From a computational perspective, there is a close connection between various probabilistic reasoning tasks and the problem of counting or sampling satisfying assignments of a pro...
Wei Wei, Jordan Erenrich, Bart Selman
SODA
2008
ACM
88views Algorithms» more  SODA 2008»
14 years 8 days ago
Sampling stable marriages: why spouse-swapping won't work
We study the behavior of random walks along the edges of the stable marriage lattice for various restricted families of allowable preference sets. In the "k-attribute model,&...
Nayantara Bhatnagar, Sam Greenberg, Dana Randall