Concept

Variété de drapeaux généralisée

Publications associées (135)

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Word Embeddings through Hellinger PCA

Rémi Philippe Lebret, Ronan Collobert

Word embeddings resulting from neural lan- guage models have been shown to be successful for a large variety of NLP tasks. However, such architecture might be difficult to train and time-consuming. Instead, we propose to drastically simplify the word embed ...

Idiap2013

Irreducibility In Algebraic Groups And Regular Unipotent Elements

Donna Testerman

We study (connected) reductive subgroups G of a reductive algebraic group H, where G contains a regular unipotent element of H. The main result states that G cannot lie in a proper parabolic subgroup of H. This result is new even in the classical case H = ...

2013

Hydrodynamics of orbital shaken bioreactors

Martino Reclari

Be it to aerate a glass of wine before tasting, to accelerate a chemical reaction or to cultivate cells in suspension, the “swirling” (or orbital shaking) of a container ensures good mixing and gas exchange in a simple and intuitive way. Despite being used ...

EPFL2013

Spatial SPION Localization in Liposome Membranes

Davide Demurtas, Alke Fink

Nanocarriers, including liposomes, offer great opportunities for targeted and controlled therapy. The development in this field has led to a large panel of drug delivery systems, which can be classified into 3 different nanovector generations. However, the ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Is Deep Learning Really Necessary for Word Embeddings?

Rémi Philippe Lebret, Ronan Collobert, Joël Yvon Roland Legrand

Word embeddings resulting from neural language models have been shown to be successful for a large variety of NLP tasks. However, such architecture might be difficult to train and time-consuming. Instead, we propose to drastically sim- plify the word embed ...

Idiap2013

Scattering of wave maps from $\mathbb{R}^{2+1}$ to general targets

Joules Elie Nahas

We show that smooth, radially symmetric wave maps

U

from

\mathbb{R}^{2+1}

to a compact target manifold

N

, where

\partial_r U

and

\partial_t U

have compact support for any fixed time, scatter. The result will follow from the work of Christodoulou ...

Springer-Verlag2013

Low voltage vertical flaps arrays as optical modulating elements for reflective display and switchable gratings

Nico de Rooij, Wilfried Noell, Fabio Jutzi

A novel technology is presented for arrays of vertical flaps as optically modulating elements which are actuated electrostatically to horizontal position at low voltages of 30-50V. One application is a reflective display exhibiting a contrast ratio of 1:95 ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Benefits and Scepticism of Ecolabels as Accountability Mechanism

Ralf Seifert, Joana Maria Comas Marti

Environmental labelling is an accountability mechanism for firms to satisfy growing demands to prove that value chains are sustainably managed. Although the large variety of ecolabels available today can be interpreted as a sign of their success, it is ove ...

Emerald2012

Transport, Flux And Growth Of Homoclinic Floer Homology

We point out an interesting relation between transport in Hamiltonian dynamics and Floer homology. We generalize homoclinic Floer homology from R-2 and closed surfaces to two-dimensional cylinders. The relative symplectic action of two homoclinic points is ...

Amer Inst Mathematical Sciences2012

Mechanisms of T Cell Development and Transformation

Freddy Radtke, Ute Koch

T cells are the key mediators in cell-mediated immunity. Their development and maturation involve a complex variety of interactions with nonlymphoid cell products and receptors. Highly specialized to defend against bacterial and viral infections, T cells a ...

2011