Results 51 to 60 of about 1,217,124 (142)

Atomic norm denoising with applications to line spectral estimation [PDF]

, 2012
The sub-Nyquist estimation of line spectra is a classical problem in signal processing, but currently popular subspace-based techniques have few guarantees in the presence of noise and rely on a priori knowledge about system model order.
Narayan Bhaskar, Badri, Recht, Benjamin, Tang, Gongguo   +2 more
core  

Improved Spectral Norm Regularization for Neural Networks

, 2023
We improve on a line of research that seeks to regularize the spectral norm of the Jacobian of the input-output mapping for deep neural networks. While previous work rely on upper bounding techniques, we propose a scheme that targets the exact spectral ...
Engsner, Niklas, Stranneg\ue5rd, Claes, Mostad, Petter, Johansson, Anton, Engsner, Niklas,, Mostad, Petter,, Strannegård, Claes,, Strannegård, Claes, Johansson, Anton,   +8 more
core   +1 more source

On the norms and Hadamard product of Toeplitz matrices involving Leonardo numbers [PDF]

Mathematica Moravica
In this study, we consider the Toeplitz matrices with entries being Leonardo numbers. We have found upper and lower bounds for the spectral norms of these matrices, considering also the Hadamard product of this type of matrix.
Catarino Paula, Borges Anabela, Vasco Paulo, Spreafico Elen, Costa Eudes   +4 more
doaj   +1 more source

Spectral permanence in a space with two norms

Revista Matemática Iberoamericana, 2018
A generalization of a classical argument of Mark G. Krein leads us to the conclusion that the Neumann–Poincar´e operator associated to the Lamé system of linear elastostatics equations in two dimensions has the same spectrum on the Lebesgue space of the boundary as the more natural energy space.
Kang H, Putinar M
openaire   +2 more sources

Numerical Approach for the Frequency-Weighted Hankel-Norm Approximation [PDF]

, 2001
We derive new projection formulas for the model reduction method based on the frequency-weighted Hankel norm approximation (FWHNA). These formulas extend the applicability of the FWHNA method to frequency weights expressed as antistable right/left ...
Varga, Andras
core  

Improving Generalizability of Spectral Reflectance Reconstruction Using L1-Norm Penalization

Sensors, 2023
Spectral reflectance reconstruction for multispectral images (such as Weiner estimation) may perform sub-optimally when the object being measured has a texture that is not in the training set.
Pengpeng Yao, Hochung Wu, John H. Xin
doaj   +1 more source

A Novel Case of Practical Exponential Observer Using Extended Kalman Filter

IEEE Access, 2018
This technical note presents a case of practical exponential observer using extended Kalman filter (EKF) independent of certain restrictions, such as online check and estimation error of initial state.
Daxiong Ji, Zhi Deng, Shuo Li, Dongfang Ma, Tao Wang, Wei Song, Shiqiang Zhu, Zhi Wang, Hongjun Pan, Sanjay Sharma, Xu Yang   +10 more
doaj   +1 more source

Optimal Spectral-Norm Approximate Minimization of Weighted Finite Automata [PDF]

, 2021
We address the approximate minimization problem for weighted finite automata (WFAs) with weights in ℝ, over a one-letter alphabet: to compute the best possible approximation of a WFA given a bound on the number of states. This work is grounded in Adamyan-
Rabusseau, Guillaume, Panangaden, Prakash, Precup, Doina, Balle, Borja, Lacroce, Clara   +4 more
core   +1 more source

关于(k,h)-Fibonacci和(k,h)-Lucas数的r-循环矩阵的谱范数(On the spectral norms of r-circulant matrices with the (k,h)-Fibonacci and (k,h)-Lucas numbers)

Zhejiang Daxue xuebao. Lixue ban, 2014
Based on the general theory of matrix and some properties of (k,h)-Fibonacci and (k,h)-Lucas numbers，the upper and lower bounds for the spectral norms of r-circulant matrices and are given.
SHENShouqiang(沈守强), CENJianmiao(岑建苗)   +1 more
doaj   +1 more source

The first three largest values of the spectral norm of oriented bicyclic graphs [PDF]

Discrete Mathematics Letters, 2023
Kun Wei, Jianping Li
doaj   +1 more source