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CGLS-GCV: a hybrid algorithm for low-rank-deficient problems
Applied Numerical Mathematics, 2003An algorithm is given for solving two rank-deficient problems: construction of a minimum norm solution of the unperturbed least squares problem for a linear system and computation of approximations of the column (row) space of the coefficient matrix. The algorithm's attribute is the satisfactory detection of the rank even if the singular spectrum has ...
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Thresholding and GCV applicability in more realistic situations
2001We have exploited the sparsity of a wavelet representation to motivate thresholding as a curve fitting method and to find GCV as an asymptotically optimal threshold assessment procedure. We explained that sparsity is a sort of smoothness and explained that wavelets are well suited to measure this concept of piecewise smoothness.
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International Journal of Engineering Trends and Technology, 2016
Arshi Mehta +5 more
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Arshi Mehta +5 more
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[Suicide gene therapy for glioma using HSV-tk/GCV system].
Zhonghua zhong liu za zhi [Chinese journal of oncology], 2000To establish a suicide gene therapy system HSV-tk/GCV for glioma treatment in vitro as well as in vivo and test its efficacy.C6 rat glioma cells were infected with recombinant retrovirus containing HSV-tk gene. Following selection the C6/tk cell line which stably expressed tk was cloned. The sensitivities of C6/tk cells to several nucleoside analogues,
L, Xu, K, Ge, Z, Zheng
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