Technical Reports
·
N. Andrei, Acceleration by modifying the stepsize
versus preconditioning with diagonalized quasi-Newton of the self-scaling
memoryless BFGS conjugate gradient methods of Hager-Zhang and Dai-Kou. Technical
Report 21/2020, October 14, 2020 (20
pages)
·
N. Andrei, Comparison
Between the Performances of DEEPS and Nelder-Mead for solving 120 Unconstrained
Optimization Problems. AOSR –
Academy of Romanian Scientists, Bucharest, Romania, Technical Report No.12/2020,
May 12, 2020. (Romanian Academy Library) (6 pages)
·
N. Andrei, Performances
of DEEPS for solving 120 Unconstrained Optimization Problems. AOSR – Academy of Romanian Scientists,
Bucharest, Romania, Technical Report 11/2020, May 10, 2020. (Romanian
Academy Library) (3 pages)
·
N. Andrei, A two level random search method for solving
the Elastic Plastic Torsion from MINPACK2. AOSR – Academy of Romanian
Scientists, Bucharest, Romania, Technical Report 10/2020, April 23, 2020. (Romanian
Academy Library) (3 pages)
·
N. Andrei, A two level random search method for
unconstrained optimization. AOSR – Academy of Romanian Scientists,
Bucharest, Romania, Technical Report 9/2020, April 19, 2020. (Romanian
Academy Library) (46 pages)
·
N. Andrei, A simple deep
random search method for unconstrained optimization. AOSR – Academy of Romanian Scientists,
Bucharest, Romania, Technical Report 8/2020, April 8, 2020. (Romanian
Academy Library) (27 pages)
·
N. Andrei, Solution of Human Heart Dipole unconstrained
optimization problem by means of DEESP6 and Nelder-Mead methods. AOSR – Academy of Romanian Scientists,
Bucharest, Romania, Technical Report 7/2020, April 1, 2020. (Romanian
Academy Library) (11 pages)
·
N.Andrei, A new simple deep random search method for
unconstrained optimization. Technical Report No.6/2020. AOSR –
Academy of Romanian Scientists, Bucharest, Romania, March 27, 2020. (Romanian
Academy Library) (45 pages)
·
N. Andrei, Performances of DEEPS for solving 16
real applications of unconstrained optimization. Technical Report No.5/2020. AOSR – Academy of
Romanian Scientists, Bucharest, Romania, March 23, 2020. (Romanian Academy
Library) (20 pages)
·
N. Andrei, Performances of DEEPS algorithm for solving
large-scale unconstrained optimization problems. Technical Report No.4/2020.
AOSR – Academy of Romanian Scientists, Bucharest, Romania, March 22,
2020. (Romanian Academy Library) (10 pages)
·
N. Andrei, Influence of local bounds “lobndc”
and “upbndc” defining the size of the local domains on performances
of the DEEPS algorithm. Technical Report No.3/2020. AOSR – Academy of
Romanian Scientists, Bucharest, Romania, March 19, 2020. (Romanian Academy
Library) (5 pages)
·
N. Andrei, Comparison of DEEPS algorithm using a simple
deep random search method versus Steepest Descent for solving an unconstrained
optimization problem with a narrow positive cone. Technical Report
No.2/2020. AOSR – Academy of Romanian Scientists, Bucharest, Romania,
March 18, 2020. (Romanian Academy Library) (3 pages)
·
N. Andrei, A simple deep random search method for
unconstrained optimization. Preliminary computational results. Technical
Report No.1/2020. AOSR – Academy of Romanian Scientists, Bucharest,
Romania, February 29, 2020. (Romanian Academy Library) (87 pages)
·
N. Andrei, A double parameter
scaled modified Broyden-Fletcher-Goldfarb-Shanno method for unconstrained
optimization. Technical Report No.3/2018, April 4, 2018
·
N. Andrei, A diagonal
quasi-Newton updating method for unconstrained optimization. Technical Report
No.2/2018, March 10, 2018
·
N. Andrei, A diagonal
quasi-Newton updating method based on minimizing the measure function of Byrd
and Nocedal for unconstrained optimization. Technical Report No. 1/2018,
January 31, 2018
·
N. Andrei, An accelerated
subspace minimization three-term conjugate gradient algorithm for unconstrained
optimization. ICI Technical Report, July 12, 2012.
·
N. Andrei, On three-term
conjugate gradient algorithms for unconstrained optimization. ICI Technical
Report, March 14, 2012.
·
N. Andrei, A simple three-term
conjugate gradient algorithm for unconstrained optimization. ICI Technical
Report, March 6, 2012.
·
N. Andrei, WORKS 2011,
Bucharest, December 2011. (Romanian Academy Library, with CD)
·
N. Andrei, Metoda
MINOS, Raport Tehnic ICI, 8 August, 2011
·
N. Andrei, WORKS 2010,
Bucharest, December 2010. (Romanian Academy Library, with CD)
·
N. Andrei, WORKS 2009,
Bucharest, December 2009. (Romanian Academy Library, with CD)
·
N. Andrei, CGALLACC -
Accelerated conjugate gradient algorithms for unconstrained optimization. ICI
Technical Report No. 17/2009, March 30, 2009. (Romanian Academy Library, with
CD)
·
N. Andrei, WORKS 2008,
Bucharest, December 2008. (Romanian Academy Library, with CD)
·
N. Andrei, HYBRID, HYBRIDM,
AHYBRIDM conjugate gradient algorithms for unconstrained optimization.
Technical report No. 35, October 20, 2008. (Romanian Academy Library, with CD)
·
N. Andrei, Computational
experience with LBFGS - a limited memory BFGS quasi-Newton method for
unconstrained optimization. Technical Report No. 32, October 3-14, 2008.
(Romanian Academy Library, with CD)
·
N. Andrei, SCALCG - Scaled
Conjugate Gradient Algorithms for Unconstrained Optimization. Technical Report
No. 17/2007, March 30, 2007 . (Romanian Academy Library, with CD)
·
N. Andrei, SAMO - Tehnologie
Informatica Avansata pentru Modelare si Optimizare. Raport Tehnic No. 18/2007,
Martie 8, 2007. (Romanian Academy Library, with CD)
·
N. Andrei, CGALL - Conjugate
Gradient Algorithms for Unconstrained Optimization. Technical Report No.
16/2007, March 5, 2007. (Romanian Academy Library, with CD)
·
N. Andrei, WORKS 2007,
Bucharest, December 2007. (Romanian Academy Library)
·
N. Andrei, WORKS 2006,
Bucharest, December 2006. (Romanian Academy Library)
·
N. Andrei, WORKS 2005,
Bucharest, December 2005. (Romanian Academy Library)
·
N. Andrei, WORKS 2004,
Bucharest, December 2004. (Romanian Academy Library)
·
N. Andrei, Computational
experience with SPENBAR - A Sparse Modified Penalty-Barrier Method for
Large-Scale Nonlinear, Equality and Inequality, constrained optimization
Technical Report No. 4/2001, February 19, 2001. (Romanian Academy Library with
CD)
·
N., Andrei,
Numerical Examples with SPENBAR - Modified penalty barrier method for
large-scale nonlinear programming problems. Part I.
ICI Technical Report, ICI-TR-01/2001, Bucharest, February 2001.
·
N., Andrei,
An Interior Point Algorithm for Nonlinear Programming.
ICI Technical Report, August 3, 1998.
·
N., Andrei,
Alternative Model Formulations in Nonlinear Programming.
ICI Technical Report, January 22, 1998.
·
N., Andrei,
Predictor-Corrector Interior-Point Methods for Linear Constrained
Optimization.
ICI Technical Report, September 23, 1997.
·
N., Andrei,
MINOS Examples considered into the book: Advanced Mathematical Programming.
Theory, Computational Methods, Applications.
ICI Technical Report, March 25, 1997.
·
N., Andrei,
NLPQL Examples considered into the book: Advanced Mathematical Programming.
Theory, Computational Methods, Applications.
ICI Technical Report, March 25, 1997.
·
N., Andrei,
SPENBAR Examples considered into the book: Advanced Mathematical
Programming.
Theory, Computational Methods, Applications.
ICI Technical Report, March 25, 1997.
·
N., Andrei,
Alternative model formulations in nonlinear programming.
Some disastrous computational results with four codes: GRG2, CONOPT, MINOS/AUGMENTED
and SPENBAR.
ICI Technical Paper, May 26, 1996.
·
N., Andrei,
Numerical Examples with SPENBAR for Large-Scale Nonlinear, Equality and
Inequality Constrained Optimization with Zero Columns in Jacobian Matrices.
ICI Technical Paper No. AMOL-96-5, March 29, 1996.
·
N., Andrei,
Computational Experience with SPENBAR a Sparse Variant of a Modified
Penalty-Barrier Method for Large-Scale Nonlinear, Equality and Inequality
Constrained Optimization.
ICI Technical Paper No. AMOL-96-4, March 11, 1996, pp.1-69.
·
N., Andrei,
Computational Experience with a Modified Penalty-Barrier Method for
Large-Scale Nonlinear Constrained Optimization. (FORTRAN subroutines)
ICI Working Paper No. AMOL-96-1, February 6, 1996.
·
N., Andrei,
SIMEQ - Package for solving linear algebraic systems AX=b by Gauss method of
elimination with column pivoting to determine x (solution of the system) and
AINV (the inverse of the matrix). ICI Working Paper No. 5, January 25, 1995
(Romanian Academy Library, with CD)
·
N., Andrei, Ghe., Borcan
ALLO - Algebraic Language for Linear Optimization.
ICI Technical Report, LSSO 2-95, Bucharest, September 21, 1995, pp.1-44.
·
N. Andrei
RF - Package for solving large-scale linear algebraic systems with Product Form
of Inverse (PFI) and Bump and Spike Pressigned Pivot Procedure.
Technical Report No. 4, September 3, 1995.
(Romanian Academy Library)
·
N., Andrei,
Computational Experience with Conjugate Gradient Algorithms for Large-Scale
Unconstrained Optimization.
ICI Technical Report, Bucharest, July 21, 1995, pp.1-26.
·
N., Andrei,
STRUCTURE - An interactive package for structural evaluation of the
determinant and characteristic polynomial of a matrix in symbolic form using
its digraph representation.
Forschungsberiicht Nr. 4/1991, Mess-, Steuer- und Regelungstechnik,
Universitaet -GH- Duisburg, pp.1-61.
·
N., Andrei,
CYCLE - An interactive package for cycle determination in digraphs.
Forschungsbericht Nr. 10/1990, Mess-, Steuer- und Regelungstechnik,
Universitaet -GH- Duisburg, pp.1-31.
·
N., Andrei,
XLP - Linear Programming Library. Documentation manual.
ICI Technical Report, LSSO-30A-86, Bucharest, 1986.
·
N., Andrei,
XLP - Linear Programming Library. FORTRAN programs.
ICI Technical Report, LSSO-30B-86, Bucharest, 1986.
·
N., Andrei,
XLP - Linear Programming Library. Numerical examples.
ICI Technical Report, LSSO-30C-86, Bucharest, 1986.
·
N., Andrei,
Application of sparse matrix techniques in GRG algorithm for large-scale
nonlinear programming.
ICI Technical Report, LSSO-026, Bucharest, June 1984, pp. 1-19.
·
N., Andrei,
Metode de siteza a regulatoarelor liniare utilizand tehnici de calcul
cu matrice rare pentru sisteme de mari dimensiuni.
ICI Technical Report, LSSO-022, Bucharest, March 1984, pp. 1-142.
(Paper placed in Library of Romanian Academy)
·
N., Andrei,
Metode de optimizare a sistemelor automate de mari dimensiuni.
ICI Technical Report, LSSO-021, Bucharest, Noiembrie 1983, pp. 1-95.
(Romanian Academy Library)
·
N., Andrei,
Tehnici de calcul cu matrice rare in teoria sistemelor.
ICI Technical Report, LSSO-020, Bucharest, October 1983, pp. 1-95.
·
N., Andrei, C. Rasturnoiu
FORTRAN subroutines for solving sparse band, symmetric and positive definite
linear equation systems of very large-scale dimensions.
ICI Technical Report, LSSO-014, Bucharest, April 1983, pp. 1-8.
·
N., Andrei,
Digraph exact disturbance rejection of sparse systems.
ICI Technical Report, RD-LSSO-011, Bucharest, March 1983, pp. 1-15.
·
N., Andrei, C. Rasturnoiu
Basic FORTRAN subroutine for large-scale sparse linear programming problems.
ICI Technical Report, LSSO-016, Bucharest, April 1983, pp. 1-17.
·
N., Andrei,
MINOPT - Optimization computing library.
ICI Technical Report, LSSO-009, Bucharest, November 1982, pp. 1-125.
·
N., Andrei, C. Rasturnoiu
Sparse Matrix Computing library. User's manual.
ICI Technical Report, LSSO-008, Bucharest, May 1982.
·
N., Andrei,
An algorithm for parameter estimation in nonlinear systems.
ICI Technical Report, RD-OG1-006, Bucharest, November 1981, pp. 1-40.
·
N., Andrei,
Computer aided management of production processes by dynamic modeling.
ICI Technical Report, RD-OG1-005, Bucharest, October 1981, pp. 1-36.
·
N., Andrei,
Management of Production Processes by Dynamic Modeling.
ICI Technical Report, RD-OG1-003, Bucharest, April 1981, pp. 1-234.
(Paper placed in Library of Romanian Academy)
·
N., Andrei,
Nested decomposition scheme for optimal control of large-scale linear
dynamic systems.
ICI Technical Report, RD-OG1-001, Bucharest, January 1981, pp. 1-23.
·
N., Andrei, C. Rasturnoiu
O subrutina de calcul a minimului unei functii neliniare de o variablia, pe
un interval dat.
ICI Technical Report, Research Department, Bucharest, Februarie 1980, pp. 1-15.
November 11, 2020