CSE550 Combinatorial Algorithms/Intractability: Difference between revisions

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== Resources ==
*> [http://www.sce.carleton.ca/faculty/chinneck/po/Chapter2.pdf Linear Programming Introduction]
*> [http://www.sce.carleton.ca/faculty/chinneck/po/Chapter2.pdf Linear Programming Introduction]
:-Unimodularity ensures that the solution to an LP will always be integer if all of the costs and constraints are also integer
:-Unimodularity ensures that the solution to an LP will always be integer if all of the costs and constraints are also integer
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:4. Finding disjoint paths with different path-costs: Complexity and algorithms
:4. Finding disjoint paths with different path-costs: Complexity and algorithms
:*Randeep Bhatia · Murali Kodialam · T. V. Lakshman, [http://www.springerlink.com.ezproxy1.lib.asu.edu/content/x24w933w7vgu262x/fulltext.pdf "Finding disjoint paths with related path costs"], Springer Science+Business Media, LLC 2006
:*Randeep Bhatia · Murali Kodialam · T. V. Lakshman, [http://www.springerlink.com.ezproxy1.lib.asu.edu/content/x24w933w7vgu262x/fulltext.pdf "Finding disjoint paths with related path costs"], Springer Science+Business Media, LLC 2006


== Midterm ==
== Midterm ==
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*Bin Zhang, Julie Ward, Qi Feng, [http://www.hpl.hp.com/techreports/2005/HPL-2005-121.pdf "Simultaneous Parametric Maximum Flow Algorithm with Vertex Balancing"], HP Laboratories Palo Alto, June 28, 2005
*Bin Zhang, Julie Ward, Qi Feng, [http://www.hpl.hp.com/techreports/2005/HPL-2005-121.pdf "Simultaneous Parametric Maximum Flow Algorithm with Vertex Balancing"], HP Laboratories Palo Alto, June 28, 2005
*J. M. W. Rhys, [http://www.jstor.org.ezproxy1.lib.asu.edu/cgi-bin/jstor/printpage/00251909/di012665/01p0039r/0.pdf?backcontext=results&dowhat=Acrobat&config=&userID=81dbf4d5@asu.edu/01c0545010c0e9115c6b1c33c&0.pdf "A Selection Problem of Shared Fixed Costs and Network Flows"], Management Science, Vol. 17, No. 3, Theory Series (Nov., 1970), pp. 200-207
*J. M. W. Rhys, [http://www.jstor.org.ezproxy1.lib.asu.edu/cgi-bin/jstor/printpage/00251909/di012665/01p0039r/0.pdf?backcontext=results&dowhat=Acrobat&config=&userID=81dbf4d5@asu.edu/01c0545010c0e9115c6b1c33c&0.pdf "A Selection Problem of Shared Fixed Costs and Network Flows"], Management Science, Vol. 17, No. 3, Theory Series (Nov., 1970), pp. 200-207


=== Q4 ===
=== Q4 ===

Revision as of 02:59, 18 November 2007

Resources

-Unimodularity ensures that the solution to an LP will always be integer if all of the costs and constraints are also integer

HW 6

1. 2-SAT is in NP
2. A sub-optimal solution to TSP is a Hamiltonian Cycle.
3. 3SAT reduction to NAESAT
4. Finding disjoint paths with different path-costs: Complexity and algorithms

Midterm

Q1

Q4

Project

-Chapter 7. LP in Practice
-> Chapter 10. Network Flow Programming