Tzvetan Ostromsky

According to our database, Tzvetan Ostromsky authored at least 50 papers between 1994 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Sensitivity Analysis in Air Pollution Modeling Supported by High Performance Supercomputers.

Tzvetan Ostromsky, Silvi-Maria Gurova, Meglena D. Lazarova

Proceedings of the Communication Papers of the 19th Conference on Computer Science and Intelligence Systems, 2024

2023

Improved Stochastic Lattice Methods for Large-Scale Air Pollution Model.

Venelin Todorov, Slavi G. Georgiev, Ivan Tomov Dimov, Rayna Georgieva, Tzvetan Ostromsky

Proceedings of the Large-Scale Scientific Computations - 14th International Conference, 2023

A Stochastic Optimization Technique for UNI-DEM framework.

Venelin Todorov, Slavi G. Georgiev, Ivan Dimov, Tzvetan Ostromsky

Proceedings of the 18th Conference on Computer Science and Intelligence Systems, 2023

Sensitivity Study of a Large-scale Air Pollution Model on the Bulgarian Petascale Supercomputer Discoverer.

Tzvetan Ostromsky, Ivan Dimov, Rayna Georgieva, Venelin Todorov

Proceedings of the 18th Conference on Computer Science and Intelligence Systems, 2023

2022

Optimization, Performance and Scalability Experiments of a Large Air Pollution Model by Using the EuroHPC Petascale Supercomputer DISCOVERER.

Tzvetan Ostromsky

Proceedings of the Recent Advances in Computational Optimization - Selected Papers from the WCO 2022, 2022

Optimized Stochastic Approaches Based on Sobol Quasirandom Sequences for Fredholm Integral Equations of the Second Kind.

Venelin Todorov, Ivan Dimov, Rayna Georgieva, Tzvetan Ostromsky

Proceedings of the Numerical Methods and Applications - 10th International Conference, 2022

Sensitivity Analysis of an Air Pollution Model with Using Innovative Monte Carlo Methods in Calculating Multidimensional Integrals.

Tzvetan Ostromsky, Venelin Todorov, Ivan Dimov, Rayna Georgieva

Proceedings of the Numerical Methods and Applications - 10th International Conference, 2022

An Optimized Monte Carlo Approach for Multidimensional Integrals Related to Intelligent Systems.

Venelin Todorov, Ivan Dimov, Stefka Fidanova, Rayna Georgieva, Tzvetan Ostromsky, Stoyan Poryazov

Proceedings of the Communication Papers of the 17th Conference on Computer Science and Intelligence Systems, 2022

Performance and Scalability Experiments with a Large-scale Air Pollution Model on the EuroHPC Petascale Supercomputer DISCOVERER.

Tzvetan Ostromsky

Proceedings of the Communication Papers of the 17th Conference on Computer Science and Intelligence Systems, 2022

2021

Advanced stochastic approaches for Sobol' sensitivity indices evaluation.

Venelin Todorov, Ivan Dimov, Tzvetan Ostromsky, Stoyan Apostolov, Rayna Georgieva, Yuri Dimitrov, Zahari Zlatev

Neural Comput. Appl., 2021

Multidimensional Sensitivity Analysis of an Air Pollution Model Based on Modifications of the van der Corput Sequence.

Venelin Todorov, Ivan Dimov, Rayna Georgieva, Tzvetan Ostromsky, Zahari Zlatev, Stoyan Poryazov

Proceedings of the Large-Scale Scientific Computing - 13th International Conference, 2021

Sensitivity Study of Large-Scale Air Pollution Model Based on Modifications of the Latin Hypercube Sampling Method.

Tzvetan Ostromsky, Venelin Todorov, Ivan Dimov, Rayna Georgieva, Zahari Zlatev, Stoyan Poryazov

Proceedings of the Large-Scale Scientific Computing - 13th International Conference, 2021

Optimized stochastic methods for sensitivity analysis for large-scale air pollution model.

Venelin Todorov, Tzvetan Ostromsky, Ivan Dimov, Rayna Georgieva

Proceedings of the Position and Communication Papers of the 16th Conference on Computer Science and Intelligence Systems, 2021

2020

Sensitivity Study of a Large-Scale Air Pollution Model by Using Optimized Stochastic Algorithm.

Venelin Todorov, Tzvetan Ostromsky, Ivan Dimov, Stefka Fidanova

Proceedings of the Communication Papers of the 2020 Federated Conference on Computer Science and Information Systems, 2020

Optimized Quasi-Monte Carlo Method Based on Low Discrepancy Sequences for Sensitivity Analysis in Air Pollution Modelling.

Venelin Todorov, Tzvetan Ostromsky, Ivan Dimov, Stefka Fidanova

Proceedings of the Communication Papers of the 2020 Federated Conference on Computer Science and Information Systems, 2020

Optimized Quasi-Monte Carlo Methods Based on Van der Corput Sequence for Sensitivity Analysis in Air Pollution Modelling.

Venelin Todorov, Ivan Dimov, Tzvetan Ostromsky, Zahari Zlatev, Rayna Georgieva, Stoyan Poryazov

Proceedings of the Recent Advances in Computational Optimization, 2020

Sensitivity Study of a Large-Scale Air Pollution Model by Using Optimized Latin Hyprecube Sampling.

Venelin Todorov, Ivan Dimov, Tzvetan Ostromsky, Zahari Zlatev, Rayna Georgieva, Stoyan Poryazov

Proceedings of the Recent Advances in Computational Optimization, 2020

2019

Efficient Stochastic Algorithms for the Sensitivity Analysis Problem in the Air Pollution Modelling.

Tzvetan Ostromsky, Venelin Todorov, Ivan Dimov, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computing - 12th International Conference, 2019

Advanced Quasi-Monte Carlo Algorithms for Multidimensional Integrals in Air Pollution Modelling.

Venelin Todorov, Ivan Dimov, Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Advances in High Performance Computing, 2019

Sensitivity Studies of an Air Pollution Model by Using Efficient Stochastic Algorithms for Multidimensional Numerical Integration.

Tzvetan Ostromsky, Venelin Todorov, Ivan Dimov, Zahari Zlatev

Proceedings of the Advances in High Performance Computing, 2019

2018

Sensitivity Analysis of an Air Pollution Model by Using Quasi-Monte Carlo Algorithms for Multidimensional Numerical Integration.

Tzvetan Ostromsky, Ivan Dimov, Venelin Todorov, Zahari Zlatev

Proceedings of the Numerical Methods and Applications - 9th International Conference, 2018

2016

On the Performance, Scalability and Sensitivity Analysis of a Large Air Pollution Model.

Tzvetan Ostromsky, Vassil Alexandrov, Ivan Dimov, Zahari Zlatev

Proceedings of the International Conference on Computational Science 2016, 2016

2015

Preparing input data for sensitivity analysis of an air pollution model by using high-performance supercomputers and algorithms.

Tzvetan Ostromsky, Ivan Dimov, Vassil Alexandrov, Zahari Zlatev

Comput. Math. Appl., 2015

2014

Application of Richardson extrapolation for multi-dimensional advection equations.

Zahari Zlatev, Ivan Dimov, István Faragó, Krassimir Georgiev, Ágnes Havasi, Tzvetan Ostromsky

Comput. Math. Appl., 2014

2013

Advanced algorithms for multidimensional sensitivity studies of large-scale air pollution models based on Sobol sequences.

Ivan Dimov, Rayna Georgieva, Tzvetan Ostromsky, Zahari Zlatev

Comput. Math. Appl., 2013

2012

Monte Carlo sensitivity analysis of an Eulerian large-scale air pollution model.

Ivan Dimov, Rayna Georgieva, Tzvetan Ostromsky

Reliab. Eng. Syst. Saf., 2012

High Performance Computing of Data for a New Sensitivity Analysis Algorithm, Applied in an Air Pollution Model.

Tzvetan Ostromsky, Ivan Dimov, Rayna Georgieva, Pencho Marinov, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications - 5th International Conference, 2012

Variance-Based Sensitivity Analysis of the Unified Danish Eulerian Model According to Variations of Chemical Rates.

Ivan Dimov, Rayna Georgieva, Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications - 5th International Conference, 2012

2011

Parallel Computation of Sensitivity Analysis Data for the Danish Eulerian Model.

Tzvetan Ostromsky, Ivan Dimov, Rayna Georgieva, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computing - 8th International Conference, 2011

New Parallel Implementation of an Air Pollution Computer Model - Performance Study on an IBM Blue Gene/P Computer.

Krassimir Georgiev, Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computing - 8th International Conference, 2011

2010

Studying the sensitivity of pollutants' concentrations caused by variations of chemical rates.

Ivan Dimov, Rayna Georgieva, Sofiya Ivanovska, Tzvetan Ostromsky, Zahari Zlatev

J. Comput. Appl. Math., 2010

Richardson Extrapolated Numerical Methods for Treatment of One-Dimensional Advection Equations.

Zahari Zlatev, Ivan Dimov, István Faragó, Krassimir Georgiev, Ágnes Havasi, Tzvetan Ostromsky

Proceedings of the Numerical Methods and Applications - 7th International Conference, 2010

2009

Sensitivity Analysis of a Large-Scale Air Pollution Model: Numerical Aspects and a Highly Parallel Implementation.

Tzvetan Ostromsky, Ivan Dimov, Rayna Georgieva, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computing, 7th International Conference, 2009

2008

Parallel Performance and Scalability Experiments with the Danish Eulerian Model on the EPCC Supercomputers.

Tzvetan Ostromsky, Ivan Dimov, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications, 4th International Conference, 2008

2007

Computational complexity of weighted splitting schemes on parallel computers.

Petra Csomós, Ivan Dimov, István Faragó, Ágnes Havasi, Tzvetan Ostromsky

Int. J. Parallel Emergent Distributed Syst., 2007

2006

Parallel and GRID Implementation of a Large Scale Air Pollution Model.

Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Numerical Methods and Applications, 6th International Conference, 2006

2004

Parallel Implementation and One Year Experiments with the Danish Eulerian Model.

Tzvetan Ostromsky, Ivan Dimov, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications, Third International Conference, 2004

2002

Flexible Two-Level Parallel Implementations of a Large Air Pollution Model.

Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Numerical Methods and Applications, 5th International Conference, 2002

2001

Parallel Implementation of a Large-Scale 3-D Air Pollution Model.

Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computing, Third International Conference, 2001

Computational challenges in large-scale air pollution modelling.

Tzvetan Ostromsky, Wojciech Owczarz, Zahari Zlatev

Proceedings of the 15th international conference on Supercomputing, 2001

2000

Estimation of the Wheat Losses Caused by the Tropospheric Ozone in Bulgaria and Denmark.

Tzvetan Ostromsky, Ivan Dimov, Ilia Tzvetanov, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications, 2000

1999

Economical Estimation of the Losses of Crops Due to High Ozone Levels.

Ivan Dimov, Tzvetan Ostromsky, Ilia Tzvetanov, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computation for Engineering and Environmental Problems, 1999

1998

A Coarse-Grained Parallel <i>QR</i>-Factorization Algorithm for Sparse Least Squares Problems.

Tzvetan Ostromsky, Per Christian Hansen, Zahari Zlatev

Parallel Comput., 1998

1997

Application of Sparse Matrix Techniques in the Chemical Part of a Large Air Pollution Model.

Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Large-Scale Scientific Computation for Engineering and Environmental Problems, 1997

1996

Parallel Solution of Sparse Problems by Using a Sequence of Large Dense Blocks.

Tzvetan Ostromsky, Stefano Salvini, Jerzy Wasniewski, Zahari Zlatev

Proceedings of the Applied Parallel Computing, 1996

Using Dense Matrix Computations in the Solution of Sparse Problems.

Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Numerical Analysis and Its Applications, First International Workshop, 1996

1995

Locally Optimized Reordering Algorithm and its Application to a Parallel Sparse Linear System Solver.

Kyle A. Gallivan, Per Christian Hansen, Tzvetan Ostromsky, Zahari Zlatev

Computing, 1995

A Parallel Sparse <i>QR</i>-Factorization Algorithm.

Tzvetan Ostromsky, Per Christian Hansen, Zahari Zlatev

Proceedings of the Applied Parallel Computing, 1995

1994

Two Enhancements in a Partitioned Sparse Code.

Per Christian Hansen, Tzvetan Ostromsky, Zahari Zlatev

Proceedings of the Parallel Scientific Computing, First International Workshop, 1994

Distributed Control using Shared Input.

Zdravko Karakehayov, Tzvetan Ostromsky

Proceedings of the 12st IASTED International Conference on Applied Informatics, 1994