'Cover time' presentation slideshows

Random Walks

Random Walks. An abstraction of student life. Eat. No new ideas. Hungry. Wait. 0.3. Work. 0.4. 0.99. 0.3. 0.01. probability. Work. Solve HW problem. Eat. No new ideas. Hungry. Wait. 0.3. Work. 0.4. 0.99. 0.3. 0.01. Work. Solve HW problem. Markov Decision Processes.

1.52k views • 87 slides

Random Walks

Random Walks. Random Walks on Graphs. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs.

785 views • 78 slides

Random Walks

Random Walks. Random Walks on Graphs. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs.

849 views • 75 slides

15-251

646 views • 58 slides

Random Walks on Graphs

Random Walks on Graphs. Lecture 18. Monojit Choudhury monojitc@microsoft.com. What is a Random Walk. Given a graph and a starting point (node), we select a neighbor of it at random, and move to this neighbor; T hen we select a neighbor of this node and move to it, and so on;

733 views • 58 slides

Random Walks on Graphs

Random Walks on Graphs. Lecture 18. Monojit Choudhury monojitc@microsoft.com. What is a Random Walk. Given a graph and a starting point (node), we select a neighbor of it at random, and move to this neighbor; T hen we select a neighbor of this node and move to it, and so on;

958 views • 58 slides

Beating the Union Bound by Geometric Techniques

573 views • 57 slides

COMPSCI 102

502 views • 49 slides

COMPSCI 102

495 views • 49 slides

Random Walks

Random Walks. Random Walks on Graphs. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs. At any node, go to one of the neighbors of the node with equal probability. -. Random Walks on Graphs.

430 views • 31 slides

Many random walks are faster than one

Many random walks are faster than one. Random walks. Random step: Move to an adjacent node chosen at random (and uniformly) Random walk: Take an infinite sequence of random steps Random walks are cool! Who needs applications?. Applications. Graph exploration

467 views • 28 slides

Parallel random walks

Parallel random walks. Brian Moffat. Outline. What are random walks What are Markov chains What are cover/hitting/mixing times Speed ups for different graphs Implementation. What is a random walk. An agent which traverses a graph randomly

365 views • 21 slides