'Shortest paths' diaporamas de présentation

Management of Routing Protocols in IP Networks

Management of Routing Protocols in IP Networks . Ph.D. Defense Aman Shaikh Computer Engineering, UCSC November 18, 2003. Introduction. Internet connects millions of computers Internet is packet-switched: Each packet travels independently of the rest Routers provide connectivity

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Chapter 6: Link Analysis

Chapter 6: Link Analysis. Road map. Introduction Social network analysis Co-citation and bibliographic coupling PageRank HITS Summary. Introduction. Early search engines mainly compare content similarity of the query and the indexed pages. I.e.,

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Graphs: shortest paths

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Announcement

Announcement. Midterm. Chapter 2 and 3 (see Reading List for details) Lab 1, 2, and 3. Midterm. 1 A4-size Cheat Sheet Some MCQ/Short Questions. Problem Set 4. Clarification on Q3 Posted. Application. Transport. you are here. Network. Link. Physical. Transport

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Chapter 24: Single-Source Shortest Paths

Chapter 24: Single-Source Shortest Paths. Given: A single source vertex in a weighted , directed graph. Want to compute a shortest path for each possible destination. Similar to BFS. We will assume either no negative-weight edges, or no reachable negative-weight cycles.

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Approximation Algorithms: Combinatorial Approaches

Approximation Algorithms: Combinatorial Approaches. Lecture 16: March 7. The Hamiltonian Path Problem. Hamiltonian Path Problem: Given an undirected graph, find a cycle visiting every vertex exactly once. Eulerian Path Problem:

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Volcano Routing Scheme Routing in a Highly Dynamic Environment

Volcano Routing Scheme Routing in a Highly Dynamic Environment. Yashar Ganjali Stanford University Joint work with: Nick McKeown SECON 2005, Santa Clara, CA, Sep. 27, 2005 yganjali@stanford.edu http://yuba.stanford.edu/~yganjali/. Outline. Routing in MANETs Slowly changing topology

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Correlating PPI node degree with SNP counts Michael Grobe (This work supported in part by: Research Technologies Indiana

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On Generating All Shortest Paths and Minimal Cut-sets

On Generating All Shortest Paths and Minimal Cut-sets. By: Beth Hayden, Daniel MacDonald July 20, 2005 Advisor: Dr. Endre Boros, RUTCOR. Problem Statement.

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Traffic Engineering and Routing

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Steiner trees

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Introduction To Algorithms CS 445

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Efficient Security Mechanisms for Routing Protocols

Efficient Security Mechanisms for Routing Protocols. Yih-Chun Hu, Adrian Perrig, David B. Johnson Presented by Yuzheng Zhou for CSC774. Secure Routing mechanisms in MANET. Most previous secure routing mechanisms use standard digital signatures

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Intelligent Tourist Information System Author of the thesis: Krzysztof Jele?

Intelligent Tourist Information System Author of the thesis: Krzysztof Jele?. Advisor at PWr: dr in?. Andrzej Gawrych-?ukowski Advisor at BTH: Bengt Aspvall Ph.D. Agenda. Introduction Research questions Problems & Solutions Presentation of the application Future Work Conclusions Summary.

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Shortest Paths

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Algorithmic Performance in Power Law Graphs

Algorithmic Performance in Power Law Graphs. Milena Mihail Christos Gkantsidis Christos Papadimitriou Amin Saberi. Graphs with Heavy Tailed Degree Sequences. E[degree] ~ constant. Power Law :. Degrees not Concentrated around Mean. Not Erdos-Renyi. 1. 2. 3. 4.

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Graph Optimization Problems and Greedy Algorithms

Graph Optimization Problems and Greedy Algorithms. Greedy Algorithms // Make the best choice now! Optimization Problems Minimizing Cost or Maximizing Benefits Minimum Spanning Tree Minimum cost for connecting all vertices Single-Source Shortest Paths Shortest Path between two vertices.

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