Popov, Andrey A.; Mou, Changhong; Sandu, Adrian; Iliescu, Traian A multifidelity ensemble Kalman filter with reduced order control variates. (English) Zbl 1467.62153 SIAM J. Sci. Comput. 43, No. 2, A1134-A1162 (2021). MSC: 62M20 62F15 65C05 65M60 62-08 PDFBibTeX XMLCite \textit{A. A. Popov} et al., SIAM J. Sci. Comput. 43, No. 2, A1134--A1162 (2021; Zbl 1467.62153) Full Text: DOI arXiv
Rao, Vishwas; Sandu, Adrian A time-parallel approach to strong-constraint four-dimensional variational data assimilation. (English) Zbl 1349.62455 J. Comput. Phys. 313, 583-593 (2016). MSC: 62M99 PDFBibTeX XMLCite \textit{V. Rao} and \textit{A. Sandu}, J. Comput. Phys. 313, 583--593 (2016; Zbl 1349.62455) Full Text: DOI arXiv
Nino Ruiz, Elias D.; Sandu, Adrian A derivative-free trust region framework for variational data assimilation. (English) Zbl 1326.65070 J. Comput. Appl. Math. 293, 164-179 (2016). MSC: 65K05 68Q10 86A10 90C15 90C51 90C59 65C05 PDFBibTeX XMLCite \textit{E. D. Nino Ruiz} and \textit{A. Sandu}, J. Comput. Appl. Math. 293, 164--179 (2016; Zbl 1326.65070) Full Text: DOI arXiv
Ştefănescu, R.; Sandu, A.; Navon, I. M. POD/DEIM reduced-order strategies for efficient four dimensional variational data assimilation. (English) Zbl 1349.76535 J. Comput. Phys. 295, 569-595 (2015). MSC: 76M20 65M06 65M32 76B15 90C90 PDFBibTeX XMLCite \textit{R. Ştefănescu} et al., J. Comput. Phys. 295, 569--595 (2015; Zbl 1349.76535) Full Text: DOI arXiv