Current projects
 | Discovering structure in complex data: Statistics meets Optimization and Inverse Problems (2015-2024) DFG Research Training Group 2088 (RTG 2088) |
| Research seminar: Numerical Analysis (English) (WS 2019/2020) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Exercises: Numerische Mathematik I - Übung (German) (WS 2019/2020) Wednesday (2 SWS) |
| Research seminar: Numerical Analysis (English) (SS 2019) Monday 14.15 - 15.45, MN 68 (2 SWS) |
| Exercises: Mathematik für Informatik-Anfänger/innen II (MafIA II) - Übung (German) (SS 2019) Wednesday, 12.15 - 13.45, MN 68 (2 SWS) |
| Exercises: Mathematik für Informatik-Anfänger/innen I (MafIA I) - Übung (German) (WS 2018/2019) Wednesday, 12.15 - 13.45, MN 68 (2 SWS) |
| Research seminar: Numerical Analysis (English) (WS 2018/2019) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Research seminar: Numerical Analysis (English) (SS 2018) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Research seminar: Numerical Analysis (English) (WS 2017/2018) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Research seminar: Numerical Analysis (English) (SS 2017) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Exercises: Approximation methods I - Exercises (English) (SS 2017) Wednesday 10.15 - 11.55, Seminarraum 2 (2 SWS) |
| Research seminar: Numerical Analysis (English) (WS 2016/2017) Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| Exercises: Mathematik des Operation Research (Theory of integer programming) - Exercises (German) (WS 2016/2017) to be fixed later (2 SWS) |
| Research seminar: Numerical Analysis (English) (SS 2016) Thursday, 12.30 - 14.00, Seminarraum NAM (2 SWS) |
| 4rd Workshop of the RTG 2088 (Talk) September 30 - October 2, 2019 in Akademie Waldschlösschen |
| SIAM Conference on Computational Science and Engineering 2019 (Talk) Febrary 25 - March 1, 2019 in Spokane (USA) |
| 29. Rhein-Ruhr-Workshop (Talk) January 31 - February 1, 2019 in Bestwig |
| RTG Workshop Sparse Approximation with Exponential Sums and Applications (Talk) November 26 - 27, 2018 in Göttingen |
| Mecklenburg Workshop Approximation Methods and Fast Algorithms (Talk) September 10 - 14, 2018 in Hasenwinkel |
| WDI^2 - Approximation Theory and Applications (Invited Talk) July 20, 2018 in Munich |
| Curves and Surfaces 2018 (Talk) June 28 - July 4, 2018 in Arcachon |
| GAMM 89th Annual Scientific Conference (Talk) March 19 - 23, 2018 in Munich |
| 28. Rhein-Ruhr-Workshop February 2 - 3, 2018 in Bestwig |
| 2nd Workshop of the RTG 2088 (Talk) September 25 - 27, 2017 in Eddigehausen |
| Workshop Geomathematics Meets Medical Imaging (Talk) September 5 - 8, 2017 in Speyer |
| International Conference on Computational Harmonic Analysis 2017 (Talk) May 24 - 28, 2017 in Shanghai |
| 27. Rhein-Ruhr-Workshop (Talk) January 27 - 28, 2017 in Bestwig |
| Annual RTG Workshop 2016 (Talk) October 4 - 6, 2016 in Luisenthal (Annual Workshop of the RTG 2088) |
| 4th Dolomites Workshop on Constructive Approximation and Applications (Talk) September 8 - 13, 2016 in Alba di Canazei (Italy) |
| Real Sparse Fast DCT for Vectors with Short Support Sina Bittens, Gerlind Plonka Linear Algebra and its Applications 582, pp.359-390, 2019 (preprint as download (arXiv)) |
| Sparse Fast Trigonometric Transforms Sina Bittens Dissertation, 2019 (published online on 22 July 2019, http://hdl.handle.net/21.11130/00-1735-0000-0003-C16D-9) |
| A deterministic sparse FFT for functions with structured Fourier sparsity Sina Bittens, Ruochuan Zhang, Mark Iwen Advances in Computational Mathematics, 45(2), pp. 519-561, 2019 (https://doi.org/10.1007/s10444-018-9626-4, preprint as download) |
| Sparse Fast DCT for Vectors with One-block Support Sina Bittens, Gerlind Plonka Numerical Algorithms 82(2), 663–697, 2019 (preprint as download (arXiv)) |
| Sparse FFT for Functions with Short Frequency Support Sina Bittens Dolomites Research Notes on Approximation 10, pp. 43--55, 2017 (preprint as download) |
| Sparse FFT for Functions with Short Frequency Support A deterministic sparse FFT algorithm for functions with short frequency support. Sina Bittens |
| FAST - A Deterministic Sparse FFT for Functions with Structured Fourier Sparsity A deterministic sparse FFT algorithm (FAST) for functions with block-structured Fourier sparsity, implemented in C++. Sina Bittens, Ruochuan Zhang, Mark Iwen |
| A Deterministic Sparse FFT for Functions with Structured Fourier Sparsity A deterministic sparse FFT algorithm for functions with block-structured (FAST) and polynomially structured Fourier sparsity, implemented in MATLAB. Sina Bittens, Ruochuan Zhang, Mark Iwen |
| Sparse Fast DCT for Vectors with One-block Support Sparse fast DCT algorithm for vectors with one-block support, implemented in MATLAB and Python. Sina Bittens, Gerlind Plonka |
| Sparse FFT for Vectors with Reflected Two-block Support Sparse FFT algorithm for vectors with reflected two-block support, implemented in MATLAB and Python. Sina Bittens, Gerlind Plonka |
| Real Sparse DCT for Vectors with Short Support Real sparse DCT algorithm for vectors with short support, implemented in MATLAB and Python. Sina Bittens, Gerlind Plonka |
| Alternative SFFT for Functions with Short Frequency Support An alternative deterministic sparse FFT for functions with short frequency support, implemented in MATLAB. Sina Bittens |
Dr. Sina Bittens