نتایج جستجو برای: l1 use

تعداد نتایج: 1775965  

Journal: :Robotics and Autonomous Systems 2011
Luis Moreno Dolores Blanco María Luisa Muñoz Santiago Garrido

The global localization methods deal with the estimation of the pose of a mobile robot assuming no prior state information about the pose and a complete a priori knowledge of the environment where the mobile robot is going to be localized. Most existing algorithms are based on the minimization of an L2-norm loss function. In spite of the extended use of the L2-norm, the use of the L1-norm offer...

2010
Markus Flierl

This paper discusses an adaptive non-linear transform for image sequences that aims to generate a l1-norm preserving sparse approximation for efficient coding. Most sparse approximation problems employ a linear model where images are represented by a basis and a sparse set of coefficients. In this work, however, we consider image sequences where linear measurements are of limited use due to mot...

Journal: :Dalton transactions 2013
Jacky Pouessel Sabah Abada Nathalie Le Bris Mourad Elhabiri Loïc J Charbonnière Raphaël Tripier

The synthesis of a new linear bis-tetraamine ligand L1, based on two 1,4,8,11-tetraazaundecane units grafted at the 2 and 6 positions of a pyridinyl linker substituted by an anthracenyl fluorophore in the para position, is described and anion complexation studies of L1 with anionic substrates are reported. The protonation pattern and the study of the binding properties of L1 in an aqueous mediu...

Journal: :Neural computation 2013
Ching-Pei Lee Chih-Jen Lin

Crammer and Singer's method is one of the most popular multiclass support vector machines (SVMs). It considers L1 loss (hinge loss) in a complicated optimization problem. In SVM, squared hinge loss (L2 loss) is a common alternative to L1 loss, but surprisingly we have not seen any paper studying the details of Crammer and Singer's method using L2 loss. In this letter, we conduct a thorough inve...

2007
Mark W. Schmidt Alexandru Niculescu-Mizil Kevin P. Murphy

Sparsity-promoting L1-regularization has recently been succesfully used to learn the structure of undirected graphical models. In this paper, we apply this technique to learn the structure of directed graphical models. Specifically, we make three contributions. First, we show how the decomposability of the MDL score, plus the ability to quickly compute entire regularization paths, allows us to ...

Journal: :Clinical advances in hematology & oncology : H&O 2017
David J Einstein David F McDermott

Targeted and immune-based therapies have improved outcomes in advanced kidney cancer, yet novel strategies are needed to extend the duration of these benefits and expand them to more patients. Combined inhibition of vascular endothelial growth factor (VEGF) and the programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) pathways with therapeutic agents already in clinical use may offer such...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده برق و کامپیوتر 1390

one of the most important goals for increasing recognition and treatment revenue is transmitting vital data to medical care team, more quickly. nowadays, use of new technologies for transmitting data will deploy more and more daily. in this article, for transmitting electrocardiogram, first we code the signal into a suite of codes, then we will use bluetooth technology to transmit data from off...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده زبانهای خارجی 1389

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

Journal: :journal of linear and topological algebra (jlta) 0
a zivari-kazempour department of mathematics, university of ayatollah borujerdi, borujerd, iran

let $mathcal{a}$ be a banach algebra with bai and $e$ be an introverted subspace of $mathcal{a'}$.in this paper we study the quotient arens regularity of $mathcal{a}$ with respect to $e$ and prove that the group algebra $l^1(g)$ for a locally compact group $g$, is quotient arens regular with respect to certain introverted subspace $e$ of $l^infty(g)$.some related result are given as well.

Journal: :Frontiers in Immunology 2023

Immune checkpoint inhibitors highlight the importance of anticancer immunity. However, their clinical utility and safety are limited by low response rates adverse effects. We focused on progesterone (P4), a hormone produced placenta during pregnancy, because it has multiple biological activities related to immune regulation P4 reversible regulatory function distinct from that stress cortisol, w...

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