نتایج جستجو برای: lms

تعداد نتایج: 5557  

1996
C Kotropoulos I Pitas

Several adaptive LMS L-lters, both constrained and unconstrained ones, are developed for noise suppression in images and being compared in this paper. First, the location-invariant LMS L-lter for a nonconstant signal corrupted by zero-mean additive white noise is derived. It is demonstrated that the location-invariant LMS L-lter can be described in terms of the generalized linearly constrained ...

2018
Duncan Blythe Alan Akbik Roland Vollgraf

Neural language models (LMs) are typically trained using only lexical features, such as surface forms of words. In this paper, we argue this deprives the LM of crucial syntactic signals that can be detected at high confidence using existing parsers. We present a simple but highly effective approach for training neural LMs using both lexical and syntactic information, and a novel approach for ap...

2013
Sukesh Kumar Das

In this paper an adaptation technique using both genetic algorithm (GA) and least mean square algorithm (LMS) is proposed. The key control parameters tap-length and tap-weight are updated using the GA and the LMS algorithm respectively according to the value of mean square error (MSE). The proposed algorithm results optimal solutions very fast by reducing initialization and derivative problems....

2007
Steven Lonn Stephanie D. Teasley Libby Hemphill

Learning Management Systems (LMS) are web-based systems that allow instructors and/or students to share materials, submit and return assignments, and communicate online. In this study, we explored the possible effects of LMS use on students' assessments of courses, instructor effectiveness, and their own learning. We examined the relationship between instructors' LMS use over two academic terms...

2014
Qifang Liu Bingzhao Gao Yuan Gao

The shift control, especially clutch slip control in inertia phase, is considered as a key issue of dual clutch transmission for improving driving comfort. For the shift is a complex nonlinear dynamic process combining engine states and road information, and these are often variable, so the clutch control system can be described as a nonlinear parameter-varying model. Moreover, a novel nonlinea...

2006
Frank Ollermann Kai-Christoph Hamborg Leonore Schulze Clemens Gruber

In einer Fragebogenstudie wurde der unterstützende Effekt eines Lernmanagementsystems (LMS) auf verschiedene Handlungsbereiche von Studierenden bewertet. Hierbei wurden speziell differenzielle Aspekte wie Anzahl der Studiensemester, Zugehörigkeit zu Fachbereichen/Fakultäten und das Geschlecht der Befragten berücksichtigt. Die Ergebnisse der Studie zeigen einen insgesamt positiven Einfluss des L...

2005
E. Gozzi

In this paper we study the symmetry known [1] as mechanical similarity (LMS) and present for any monomial potential. We analyze it in the framework of the Koopman-von Neumann formulation of classical mechanics and prove that in this framework the LMS can be given a canonical implementation. We also show that the LMS is a generalization of the scale symmetry which is present only for the inverse...

2015
H. Zayyani S. M. Dehghan

This paper presents a simple and easy implementable Least Mean Square (LMS) type approach for frequency estimation of three phase power system in an unbalanced condition. The proposed LMS type algorithm is based on a second order recursion for the complex voltage derived from Clarke's transformation which is proved in the paper. The proposed algorithm is real adaptive filter with real parameter...

2012
Yoichi Hamai Jun Hihara Manabu Emi Yoshiro Aoki Kei Kushitani Kazuaki Tanabe Morihito Okada

BACKGROUND Leiomyosarcoma (LMS) of the gastrointestinal tract is an extremely rare high-grade neoplasm with poor prognosis. For advanced LMS with distant metastasis, the decision as to the choice of the most appropriate therapeutic strategy, including chemotherapy and surgery, is difficult. Here, we present an unusual case of LMS of the sigmoid colon with liver metastases and gastric cancer. Th...

2000
R. Birkhahn E. Alves

The in ̄uence of the Ga cell temperature on the quality of GaN ®lms grown by MBE on p-Si(1 1 1) substrates was studied for cell temperatures (TGa) in the range from 865°C to 922°C using the RBS/Channeling technique. The ®lms were in situ doped during growth with Er at a constant cell temperature. The ®lms show a strong dependence of the crystalline quality on the Ga cell temperature with the bes...

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