Laszlo Ladanyi  Laszlo Ladanyi photo         

contact information

Senior Software Scientist
CPLEX Optimizer


Professional Associations

Professional Associations:  COIN-OR  |  Mathematical Optimization Society  |  Tau Beta Pi


Computational Experience with a Software Framework for Parallel Integer Programming
Y Xu, T.K. Ralphs, L Ladanyi, M.J. Saltzman
The INFORMS Journal on Computing21, 383--397, 2009

Intensive optimization of masks and sources for 22nm lithography
Alan E. Rosenbluth, David O. Melville, Kehan Tian, Saeed Bagheri, Jaione Tirapu-Azpiroz, Kafai Lai, Andreas Waechter, Tadanobu Inoue, Laszlo Ladanyi, Francisco Barahona, Katya Scheinberg, Masaharu Sakamoto, Hidemasa Muta, Emily Gallagher, Tom Faure, Micha
Proc. SPIE7274, 727409-727409-15, 2009


Inventory allocation and transportation scheduling for logistics of network-centric military operations

IBM Journal of Research and Development 51(3.4), 391-407, 2007


Vehicle Routing and Staffing for Sedan Service
Oktay Gunluk, Tracy Kimbrel, Laszlo Ladanyi, Baruch Schieber, Gregory B. Sorkin
Transportation Science 40(3), 313-326, 2006


An Implementation of a Separation Procedure for Mixed Integer Rounding Inequalities
J.P.M Goncalves, L. Ladanyi
Research Report RC 23686, IBM Research, Yorktown Heights, 2005

Rapid Prototyping of Optimization Algorithms Using COIN-OR: A Case Study Involving the Cutting-Stock Problem
Laszlo Ladanyi, Jon Lee, Robin Lougee-Heimer
Annals of Operations Research 139(1), 243--265, 2005

ALPS: A Framework for Implementing Parallel Search Algorithms
Y Xu, T.K. Ralphs, L Ladanyi, M.J. Saltzman
The Proceedings of the Ninth INFORMS Computing Society Conference, pp. 319--334, 2005

A Branch-and-Price Algorithm and New Test Problems for Spectrum Auctions
Oktay Günlük, Laszlo Ladanyi, Sven de Vries
Management Science 51(3), 391-406, 2005


A Library Hierarchy for Implementing Scalable Parallel Search Algorithms
T.K. Ralphs, L Ladanyi, M.J. Saltzman
Journal of Supercomputing28, 215--234, 2004


Parallel Branch, Cut, and Price for Large-Scale Discrete Optimization
T.K. Ralphs, L Ladanyi, M.J. Saltzman
Mathematical Programming98, 253--280, 2003


Implementing Scalable Parallel Search Algorithms for Data-intensive Applications
L Ladanyi, T.K. Ralphs, M.J. Saltzman
Proceedings of the International Conference on Computational Science, pp. 592--602, 2002


COIN/BCP User's Manual
T. K. Ralphs, L. Ladanyi

Bid evaluation in procurement auctions with piece-wise linear supply curves
Marta Eso, Soumyadip Ghosh, Jayant Kalagnanam, Laszlo Ladanyi
IBM Research, Yorktown Heights, NJ, USA, Research Report RC22219, 2001

Branch, Cut, and Price: Sequential and Parallel
L Ladanyi, T.K. Ralphs, L.E. Trotter Jr.
Computational Combinatorial Optimization, pp. 223--260, Springer, 2001


SYMPHONY: A Parallel Framework for Branch, Cut, and Price
T.K. Ralphs, L Ladanyi
Technical Report, Rice University, 2000


IBM makes advances in airline optimization
R. Anbil, F. Barahona, L. Ladanyi, R. Rushmeier, J. Snowdon
OR/MS Today 26(6), 1999


Fully Parallel Generic Branch-and-Cut Framework
M Eso, L Ladanyi, T.K. Ralphs, L.E. {Trotter Jr.}
Proceedings of the Eighth SIAM Conference on Parallel Processing for Scientific Computing, 1997


Empirical Study of Min Cost Flow Algorithms
R.G. Bland, J. Cheriyan, D.L. Jensen, L. Ladanyi
Network Flows and Matching: First DIMACS Implementation Challenge, pp. 119--156, AMS, 1993