Recent Technical Reports by Trond Steihaug


Sparsity in Higher Order Methods in Optimization Geir Gundersen and Trond Steihaug. Report 327, Department of Informatics, University of Bergen. June 2006.

A class of methods combining L-BFGS and truncated Newton Lennart Frimannslund and Trond Steihaug. Report 319, Department of Informatics, University of Bergen, April 2006. (PDF)

Using Partial Separability of Functions in Generating Set Search Methods for Unconstrained Optimisation. Lennart Frimannslund and Trond Steihaug. Report 318, Department of Informatics, University of Bergen, March 2006. (PDF)

Optimal Direct Determination of Sparse Jacobian Matrices. Shahadat Hossain and Trond Steihaug. Report 254, Department of Informatics, University of Bergen, October 2003. (PDF)

Sparsity issues in the computation of Jacobian Matrices Shahadat Hossain and Trond Steihaug: Report 223, Department of Informatics, University of Bergen, January 2002

An interior point trust-region based method for large scale nonnegative regularization , Marielba Rojas and Trond Steihaug, December, 19, 2001. Final version June 3,2002 Inverse Problems, 18(5): 1291-1307, 2002. [ (PS) [ (Gzipped PS) ]

An interior point trust-region based method for large scale nonnegative regularization: First progress Report , Marielba Rojas and Trond Steihaug, Report CERFACS Technical report TR/PA/01/11 July 24, 2001.

On the Convergence of an Inexact Primal-Dual Interior Point Method for Linear Programming , V. Baryamureeba and T.Steihaug, Report 188, March 2000.

On the properties of preconditioners for robust linear regression , V. Baryamureeba and T.Steihaug, Report 184, March 2000.

Properties and computational issues of a preconditioner for interior point methods , V. Baryamureeba and T.Steihaug, Report 180, November 1999.

A class of preconditioners for weighted least squares problems, V. Baryamureeba and T.Steihaug, and Y. Zhang, Report 170, April 1999.

A Ferris-Mangasarian technique applied to linear least squares problems , J. E. Dennis and T. Steihaug, Report 150, May 1998.

Asyncronous methods and least squares: an example of deteriorating convergence, T. Steihaug and Yasemin Yalcinkaya, Report 131, April 1997.

Computing a sparse Jacobian matrix by rows and columns, A.K.M.Shahadat Hossain and T. Steihaug, Report 109, October 1995. (Optimization Methods and Software Vol 10, pp.33-48, 1998)

Graph coloring and the estimation of sparse Jacobian matrices with segmented columns , T. Steihaug and A.K.M.Shahadat Hossain, Report 72, November 1992 (Revised May 1997).


A complete list of technical reports from Department of Informatics, University of Bergen