COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Best m-term approximation of the "step-function" and related problems

## Best m-term approximation of the "step-function" and related problemsAdd to your list(s) Download to your calendar using vCal - Konstantin Ryutin ()
- Thursday 21 February 2019, 09:40-10:15
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. ASCW01 - Challenges in optimal recovery and hyperbolic cross approximation The main point of the talk is the problem of approximation of the step-function by $m$-term trigonometric polynomials and some closely related problems: the approximate rank of a specific triangular matrix, the Kolmogorov width of BV functions. This problem has its origins in approximation theory (best sparse approximation and Kolmogorov widths) as well as in computer science (approximate rank of a matrix). There are different approaches and techniques: $\gamma_2$—norm, random approximations, orthomassivity of a set…. I plan to show what can be achieved by these techniques. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
- Featured lists
- INI info aggregator
- Isaac Newton Institute Seminar Series
- School of Physical Sciences
- Seminar Room 1, Newton Institute
- bld31
Note that ex-directory lists are not shown. |
## Other listsAmnesty - China Cambridge RNA Club Bio-Inspired Robotics Lab (BIRL) Seminar Series## Other talksMultimodal Imaging of Carotid Atherosclerosis and the Neurovascular Interface in Cerebrovascular Disease Seminar – Longitudinal growth modeling: a tool for genetic discovery Symmetry, bifurcation, and multi-agent decision-making Verified Probabilistic Reachability in Parametric Hybrid Systems: Theory and Tool Implementation An early hematopoietic progenitor contributes endothelial cells to organ vasculature Two questions of shape |