نتایج جستجو برای: الگوریتم lms

تعداد نتایج: 27868  

1997
Tetsuya Shimamura Colin Cowan

For the purpose of equalisation of rapidly time variant multipath channels, the RLS algorithm might provide better performance than the LMS algorithm. However, the RLS algorithm requires complicated operation to adapt the equaliser coe cients. In this paper, we derive a novel adaptive algorithm, amplitude banded LMS(ABLMS), and develop it as the adaptation procedure for a linear transversal equ...

1998
Chuan Wang Jose C. Principe

An on-line transform domain Least Mean Square (LMS) algorithm based on a neural approach is proposed. A temporal Principal Component Analysis (PCA) network is used as an orthonormalization layer in the transform domain LMS filter. Since PCA learning is an on-line learning algorithm, an on-line transform domain LMS filter can be easily implemented. Moreover, a modified Kalman estimation, which c...

2004

The Least Mean Square (LMS) algorithm, introduced by Widrow and Hoff in 1959 [12] is an adaptive algorithm, which uses a gradient-based method of steepest decent [10]. LMS algorithm uses the estimates of the gradient vector from the available data. LMS incorporates an iterative procedure that makes successive corrections to the weight vector in the direction of the negative of the gradient vect...

Journal: :Journal of clinical oncology : official journal of the American Society of Clinical Oncology 2018
Suzanne George César Serrano Martee L Hensley Isabelle Ray-Coquard

Leiomyosarcoma (LMS) is one of the most common subtypes of soft tissue sarcoma in adults and can occur in almost any part of the body. Uterine leiomyosarcoma is the most common subtype of uterine sarcoma. Increased awareness of this unique histology has allowed for the development of drugs that are specific to LMS and has begun to shed light on the similarities and possible unique aspects of so...

2005
C. C. Lim Y. D. Xu J. J. Jin

With the increasing demands for sophisticated Learning Management System (LMS) to deploy in diverse learning environments, the need for unique customisation in the standard LMS to manage variety of courses is extremely important and widely recognized. However, software customisation is extremely expensive and involves long duration of the software development lifecycle process. Thus, the tradit...

Journal: :Applied sciences 2023

The increase in life expectancy, according to the World Health Organization, is a fact, and with it rises incidence of age-related neurodegenerative diseases. most recurrent symptoms are those associated tremors resulting from Parkinson’s disease (PD) or essential (ETs). main alternatives for treatment these patients medication surgical intervention, which sometimes have restrictions side effec...

Journal: :CoRR 2010
Nasrin Akhter Kaniz Fatema Lilatul Ferdouse Faria Khandaker

The LMS algorithm is one of the most successful adaptive filtering algorithms. It uses the instantaneous value of the square of the error signal as an estimate of the mean-square error (MSE). The LMS algorithm changes (adapts) the filter tap weights so that the error signal is minimized in the mean square sense. In Trigonometric LMS (TLMS) and Hyperbolic LMS (HLMS), two new versions of LMS algo...

Journal: :CoRR 2017
Bin Wang Zhijian Ou

Trans-dimensional random field language models (TRF LMs) where sentences are modeled as a collection of random fields, have shown close performance with LSTM LMs in speech recognition and are computationally more efficient in inference. However, the training efficiency of neural TRF LMs is not satisfactory, which limits the scalability of TRF LMs on large training corpus. In this paper, several...

Journal: :Histopathology 2007
D J Papachristou V Gkretsi Y Tu X Shi K Chen H Larjava U N M Rao C Wu

AIMS Leiomyosarcomas (LMS) are malignant neoplasms composed of cells that exhibit distinct smooth muscle differentiation. The molecular and cytogenetic features of LMS are complex and no consistent aberrations have been reported to date. Mitogen inducible gene-2 (Mig-2), kindlin and migfilin are recently identified cell-matrix adhesion proteins. The aim was to determine the expression and distr...

Journal: :Chemosphere 2002
V Grewe C Reithmeier D T Shindell

The importance of the interaction between chemistry and dynamics in the upper troposphere and lower stratosphere for chemical species like ozone is investigated using two chemistry-climate models and a Lagrangian trajectory model. Air parcels from the upper troposphere, i.e. regions of lightning and aircraft emissions, are able to be transported into the lowermost stratosphere (LMS). Trajectory...

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