COR@L Seminar Series 2004-05
Introduction
Coral Seminar Series is a series of weekly seminars focussing on Optimization.
These informal seminars are usually held on every Thursday 12:00-1:00pm in room
Mo355. Anyone interested in a particular seminar or mathematical programming
and optimization in general is welcome. Attendees are encouraged to bring their
lunch. Important announcements and discussions about the seminar are made on
the
seminar
mailing list, which is open to everyone for subscription.
If you wish to contribute a talk on your own research in optimization
send an email with a short description of your topic to
Menal Guzelsoy.
Summer 2005
Following is a list of presentations done during the summer break, along with the
slides and suggested readings.
Date: | Thursdays, 07/14/2005, 07/28/2005, 08/04/2005, 08/11/2005
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Speaker: | Menal Guzelsoy, Ted Ralphs
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Topic: | IP Duality, sensitivity and parametric analysis [PDF]
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- Suggested Reading:
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Diego Klabjan, A New Subadditive Approach to Integer Programming: Theory and
Algorithms, In Proceedings of the Ninth Conference on Integer Programming and
Combinatorial Optimization, Cambridge, MA, pages 384-400
[PDF]
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L.A. Wolsey, Integer Programming Duality: Price Functions and Sensitivity
Analaysis, Math Programming, 20.
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And a lot more. ;-)
Date: | Thursday, 07/14/2005
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Speaker: | Wasu Glankwamdee
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Topic: | An approximation algorithm for cover inequality separation; and Benchmarking optimization software. [PDF]
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- Suggested Reading:
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Dolan E.D., More J.J., Benchmarking optimization software with performance profiles, Mathematical Programming, Series A, 91, 201-213, 2002. [PDF]
Date: | Thursday, 07/07/2005
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Speaker: | Matthew Galati
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Topic: | Aggregation and Mixed Integer Rounding to solve MILPs [PDF]
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- Suggested Reading:
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Marchand H., Wolsey L.A., Aggregation and Mixed Integer Rounding to Solve MIPs, CORE Discussion Paper, June 1998. [PDF]
Date: | Thursday, 06/30/2005
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Speaker: | Scott Denegree
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Topic: | Sparse Simplex and LPs with Embedded Network Structure [PDF]
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- Suggested Reading:
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Gulpinar N., Mitra G., Maros I., Creating Advanced Bases for Large Scale Linear Programs Exploiting Embedded Network Structure, Computational Optimization and Applications, 21(1), 71-93. [PDF]
Date: | Thursday, 06/16/2005
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Speaker: | Ashutosh Mahajan
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Topic: | Inverting Basis in Simplex [PDF]
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- Suggested Reading:
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Istvan Maros, Computational Techniques of the Simplex Method, Kluwer Academic Publishers, 2003.
Date: | Thursday, 06/09/2005
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Lead: | Ted Ralphs
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Topic: | Hypersparsity in Revised Simplex Method
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- Suggested Reading:
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J.A.J. Hall, K.I.M. McKinnon, Hyper-sparsity in the revised simplex method and how to exploit it, University of Edinburgh School of Mathematics October 2002. [Optimization-Online]
Date: | Thursday, 06/02/2005
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Speakers: | Scott Denegree
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Topic: | Sparse Matrix Factorization
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- Suggested Reading:
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Edward Rothberg, Anoop Gupta, Efficient sparse matrix factorization on high performance workstations\u2014exploiting the memory hierarchyl, ACM Transactions on Mathematical Software (TOMS), Volume 17, Issue 3, September 1991
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J.W. Demmel, S.C. Eisenstat, J.R. Gilbert, X.S. Li, J.W.H. LiuA Supernodal Approach to Sparse Partial Pivoting, SIAM Journal on Matrix Analysis and Applications, Vol 20, No. 3, pp 720-755.
Date: | Thursday, 05/26/2005
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Speakers: | Jim Ostrowski
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Topic: | Basic Linear Algebra: LU Decomposition
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Date: | Thursday, 05/19/2005
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Speakers: | Ashutosh Mahajan, Ali Pilatin
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Topic: | Pancakes: Half baked and burnt [PDF]
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- Suggested Reading:
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W.H. Gates, C.H.Papadimitriou, Bounds for sorting by prefix reversal, Discrete Mathematics, 27, (1979).
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M.H. Heydari, I.H. Sudborough, On the diameter of the pancake network, Journal of Algorithms, 25, 1997.
Date: | Thursday, 05/12/2005
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Speaker: | Jeff Linderoth
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Topic: | Mixed Integer Non Linear Programming - II (Algorithms) [PDF]
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- Final version of presentation is available at COR@L Tutorials Page
- Suggested Reading:
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Grossmann, I.E., Review of Nonlinear Mixed-Integer and Disjunctive Programming Techniques, Optimization and Engineering, 3, 227-252 (2002). [PDF]
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Stubbs R.A., Mehrotra S., A branch and cut method for 0-1 mixed convex programming, Mathematical Programming, vol 86, 1999.
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Cezik M.T., Iyengar G., Cuts for mixed (0-1) Conic Programming, Mathmatical Programming, (to appear), 2005.
Date: | Thursday, 05/05/2005
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Speaker: | Jeff Linderoth
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Topic: | Mixed Integer Non Linear Programming - I (Introduction) [PDF]
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- Suggested Reading:
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Grossmann, I.E., Review of Nonlinear Mixed-Integer and Disjunctive Programming Techniques, Optimization and Engineering, 3, 227-252 (2002). [PDF]
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Stubbs R.A., Mehrotra S., A branch and cut method for 0-1 mixed convex programming, Mathematical Programming, vol 86, 1999.
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Cezik M.T., Iyengar G., Cuts for mixed (0-1) Conic Programming, Mathmatical Programming, (to appear), 2005.
Spring 2005 Presentations
Date: | Thursday, 04/21/2005
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Speaker: | Kumar Abhishek
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Topic: | Approximation Algorithms [PDF]
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- Suggested Reading:
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Vijay Vazirani, Approximation Algorithms, Springer-Verlag, 2001.
Date: | Thursday, 04/14/2005
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Speaker: | Udom Janjarassuk
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Topic: | Stochastic Network Interdiction [PPT]
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- Suggested Reading:
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Cormican K.J., Morton D.P., Wood R.K., Stochastic Network Interdiction
, Operations Research, Vol. 46, No. 2, 1998. [PDF]
Date: | Thursday, 04/08/2005
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Speaker: | Ashutosh Mahajan
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Topic: | Complexity - 101 [PDF]
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- Suggested Reading:
- Christos H. Papadimitriou. Computational Complexity, Addison-Wesley,
1994, Chapters 1-3.
Date: | Thursday, 03/24/2005
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Speaker: | Zeliha Akca, Ali Pilatin
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Topic: | Linearizing Mixed 0-1 Polynomial Expressions [PPT unavailable]
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- Note:
- Based on the work of W.P. Adams and R.J. Forrester
Date: | Thursday, 03/07/2005
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Speaker: | Scott DeNegree
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Topic: | Integer Programming Duality [PDF]
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- Suggested Reading:
- Gomory, R.E., An algorithm for integer solutions to linear
programs.In R.L. Graves and P.Wolfe, Recent Advances in Mathematical
Programming, 269-302. McGraw-Hill New York, 1963
- K. Klamroth, J. Tind, and S. Zust Integer Programming Duality in multiple objective programming. Journal of Global Optimization, 29, 1-18, 2004. [PDF]
- G.L. Nemhuaser and L.A. Wolsey, Integer and Combinatorial
Optimization. John Wiley and Sons, Inc, New York, 1999
- Wolsey, L.A., Integer Programming Duality: Price Functions and
sensitivity analysis. Mathematical Programming, 20, 173-195, 1981.
Date: | Thursday, 03/03/2005
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Speaker: | Jerry Shen, Zeliha Akca
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Topic: | Sampling Methods in Stochastic Programming [PPT]
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- Suggested Reading:
- A.Oven 1998. Monte Carlo Extension of Quasi-Monte Carlo. 1998 Winter
Simulation Conference.
- M.Koivu 2004. Variance Reduction in Sample
Approximations of Stochastic Programs. Mathematical Programming.
- J.Linderoth A.Shapiro and S.Wright. 2002.The Empirical
Behavior of Sampling Methods for Stochastic Programming. Optimization
technical report 02-01.
- H.Niederreiter. 1992. Random Number Generation
and Quasi-Monte Carlo Methods, volume 63 of CBMS-NSF Reginal Conference
Series in Applied Mathematics.
Date: | Thursday, 02/17/2005
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Speaker: | Menal Guzelsoy
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Topic: | Infeasibility in MIPs [PDF]
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- Suggested Reading:
- Chinneck J.W. Analyzing Infeasible Optimization Models, A tutorial for
CORS/INFORMS, 2004 [PDF]
- Guieu O., Chinneck J.W. Analyzing Infeasible Mixed Integer and Integer
Linear Programs, INFORMS Journal on Computing, vol 11, no. 1, pp 63-77,
1999.
- Chinneck J.W. Finding a Useful Subset of Constraints for Analysis in an
Infeasbile Linear Program, INFORMS Journal on Computing, vol. 9, no. 2,
1997.
Date: | Thursday, 02/10/2005
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Speaker: | Ted Ralphs
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Topic: | Bicriteria Integer Programming [PS,
PDF]
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- Suggested Reading:
- T.K.Ralphs, M.J. Saltzman, and M.M. Wiecek, An Improved Algorithm for
Biobjective Integer Programming, to appear in Annals of Operations Research
[Working paper version:PS, PDF]
Fall 2004 Presentations
October 24-27, INFORMS break! |
Topic: | Discussion on Stochastic Integer Programming
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Time: | Tuesdays 09/16/04 - 09/30/04 12:00pm - 1:00pm |
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Place: | Mohler Laboratory - Room 355 |
Lead: | Jeff Linderoth |
- Suggested Readings:
- R. Schultz.
Stochastic Programming with Integer Variables.
Mathematical Programming, Series {B},97:285-309, 2003.
- A Tutorial by Shabbir Ahmed:
Stochastic Programming .
- Lewis Ntaimo, Suvrajeet Sen.
The Million-Variable "March" for Stochastic Combinatorial Optimization.
Topic: |
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Authors: | Scott DeNegree, Ted Ralphs |
Time: | Thursday 09/02/04 12:00pm - 1:00pm |
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Place: | Mohler Laboratory - Room 355 |
Speaker: | Scott DeNegree |
Archives
Seminar Series 2003-2004
Last Updated: Sept 10, 2005