Improved Quasi-Newton Adaptive-Filtering Algorithm
نویسندگان
چکیده
منابع مشابه
A Quasi-newton Adaptive Algorithm for Estimating Generalized Eigenvectors
We first introduce a constrained minimization formulation for the generalized symmetric eigenvalue problem and then recast it into an unconstrained minimization problem by constructing an appropriate cost function. Minimizer of this cost function corresponds to the eigenvector corresponding to the minimum eigenvalue of the given symmetric matrix pencil and all minimizers are global minimizers. ...
متن کاملAn adaptive quasi-Newton algorithm for eigensubspace estimation
In this paper, we derive and discuss a new adaptive quasi-Newton eigen-estimation algorithm and compare it with the RLS-type adaptive algorithms and the quasi-Newton algorithm proposed by Mathew et al. through experiments with stationary and nonstationary data.
متن کاملadaQN: An Adaptive Quasi-Newton Algorithm for Training RNNs
Recurrent Neural Networks (RNNs) are powerful models that achieve unparalleled performance on several pattern recognition problems. However, training of RNNs is a computationally difficult task owing to the well-known “vanishing/exploding” gradient problems. In recent years, several algorithms have been proposed for training RNNs. These algorithms either: exploit no (or limited) curvature infor...
متن کاملDelay Estimator and Improved Proportionate Multi-Delay Adaptive Filtering Algorithm
This paper pertains to speech and acoustic signal processing, particularly to the determination of echo path delay and operation of echo cancellers. To cancel long echoes, the number of weights in a conventional adaptive filter must be large. The length of the adaptive filter will directly affect both the degree of accuracy and the convergence speed of the adaptation process. We present a new a...
متن کاملAn improved adaptive wiener filtering algorithm for super-resolution
This paper presents an improved adaptive Wiener filtering algorithm for super-resolution reconstruction. When interpolating the high resolution pixels, the proposed algorithm locally adjusts the correlation model of the pixels by taking edge information into account. Simulation results show that the proposed algorithm produces SR outputs of better quality, both subjectively and objectively, as ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Circuits and Systems I: Regular Papers
سال: 2010
ISSN: 1549-8328,1558-0806
DOI: 10.1109/tcsi.2009.2038567