Search results for "DOMAIN"
showing 10 items of 2485 documents
Gratuité et Processus de Prise de Décision dans le Domaine Culturel : le Cas des Musées et des Monuments
2006
La gratuité est le caractère de ce qui est gratuit, c'est-à-dire de ce « qui se donne pour rien ».Il est intéressant d'observer que lorsque les individus évoquent le choix d'une visite gratuitede musée et de monument, comparativement à la visite payante, ils se positionnentrégulièrement comme des consommateurs qui expriment des préférences, évaluent desalternatives, traitent des informations et manifestent des intentions de consommation. Dèslors, il convient d'analyser, dans notre recherche, le processus de prise de décision del'individu en tant que consommateur de la visite culturelle. Dans une première partie, nousdévelopperons ainsi les effets de la gratuité sur le processus de prise de …
Planar Sobolev extension domains
2017
This doctoral thesis deals with geometric characterizations of bounded planar simply connected Sobolev extension domains. It consists of three papers. In the first and third papers we give full geometric characterizations of W 1, p-extension domains for 1 < p < 2 and p = 1, respectively. The second paper establishes a density result for Sobolev functions on planar domains, necessary for the solution for the case p = 1. Combining with the known results, we obtain a full geometric characterization of W 1, p-extension domains for every 1 ≤ p ≤ ∞.
Metaforas modes emuāros
2017
Lai gan metaforas pētījumi ir piesaistījuši daudzu zinātnieku uzmanību, metaforu lietojums modes emuāros nav daudz pētīts. Emuārs kā žanrs parādījās 2000.gadu sākumā un kopš tā laika ir izveidojušies dažādi emuāra veidi. Empīriskie dati ir ekscerpēti no modes emuāra The Blonde Salad. Pētījums ir izstrādāts, lai atbildētu uz pētījuma jautājumu - kāda metaforu funkcija dominē emuārā The Blonde Salad. Pētījuma mērķis ir noteikt avota domēnus, kas metaforiski raksturo modi izvēlētajā modes emuārā. Teorētiskā pētījuma daļa ir balstīta uz teorijām par metaforām, to funkcijām un iedalījumu tādu zinātnieku kā Lakofs, Džonsons, Gibs, Knovles, Mūns un Kovecses skatījumā. Empīŗiskais pētījums ir veikt…
Comparison of feature importance measures as explanations for classification models
2021
AbstractExplainable artificial intelligence is an emerging research direction helping the user or developer of machine learning models understand why models behave the way they do. The most popular explanation technique is feature importance. However, there are several different approaches how feature importances are being measured, most notably global and local. In this study we compare different feature importance measures using both linear (logistic regression with L1 penalization) and non-linear (random forest) methods and local interpretable model-agnostic explanations on top of them. These methods are applied to two datasets from the medical domain, the openly available breast cancer …
Inverse problems and invisibility cloaking for FEM models and resistor networks
2013
In this paper we consider inverse problems for resistor networks and for models obtained via the finite element method (FEM) for the conductivity equation. These correspond to discrete versions of the inverse conductivity problem of Calderón. We characterize FEM models corresponding to a given triangulation of the domain that are equivalent to certain resistor networks, and apply the results to study nonuniqueness of the discrete inverse problem. It turns out that the degree of nonuniqueness for the discrete problem is larger than the one for the partial differential equation. We also study invisibility cloaking for FEM models, and show how an arbitrary body can be surrounded with a layer …
An optimal local active noise control method based on stochastic finite element models
2013
A new method is presented to obtain a local active noise control that is optimal in stochastic environment. The method uses numerical acoustical modeling that is performed in the frequency domain by using a sequence of finite element discretizations of the Helmholtz equation. The stochasticity of domain geometry and primary noise source is considered. Reference signals from an array of microphones are mapped to secondary loudspeakers, by an off-line optimized linear mapping. The frequency dependent linear mapping is optimized to minimize the expected value of error in a quiet zone, which is approximated by the numerical model and can be interpreted as a stochastic virtual microphone. A leas…
Zones d'ammonites et de foraminifères du Vraconnien au Turonien : Une comparasion entre les domaines boréal et téthysien (NW Europe / Tunisie central…
2008
International audience; Depuis la fin du 19ème siècle, l'intervalle comprenant l'Albien supérieur élevé, le Cénomanien, le Turonien et le Coniacien basal a été subdivisé d'abord en zones d'ammonites puis, à partir du milieu du 20ème siècle, en zones de foraminifères planctoniques, deux groupes de macro- et de microfossiles particulièrement efficaces en bio-chronostratigraphie grâce à leur taux d'évolution rapide. Toutefois, des différences de compositions fauniques entre le domaine boréal (Europe du Nord-Ouest) et le domaine téthysien (Méditerranée) ont longtemps empêché des corrélations précises entre ces deux domaines. Aujourd'hui, dans un intervalle de temps couvrant environ 16 millions …
Adverbial expressions within the legal domain: from medieval fueros to their consolidation in language
2010
Given the importance of legal language in the study of historical phraseological, it is here analyzed the presence, use and evolution of adverbial phrases in some outstanding medieval fueros, and also how a good number of adverbial expressions have transcended and developed from legal language to other contexts, owed to —at least in some cases— a clear colloquial origin (a sabiendas, por bien...). This characteristic joins many others, such as the creation of complex syntagmas derived from the union of simple expressions: de cabo a rabo, a diestro y a sinestro, a tuerto o a derecho, etc. It is therefore interesting to study the individual, particular history of each adverbial phrase found, …
The necropolis of Ensisheim/Reguisheimerfeld (Haut-Rhin) : illustration of the Late Bronze Age funerary practices in Alsace
2007
In 2000, the preventive excavation of the Ensisheim/Reguisheimerfeld site (Haut-Rhin), carried out by the ANTEA SARL company, brought to light 87 funerary structures belonging to a cremation necropolis dating from the beginning of the Late Bronze Age (around 1350-1050 BC). Following study of the material, 3 successive chronological phases and a possible cultural "faciès" centred on the bend in the Rhine at Basel, Switzerland, were distinguished. The archaeo-anthropological study of the burnt bones revealed, among other things, the existence of a large number of multiple graves and of socially immature members of the society, phenomena rarely observed in the region. The analysis of the inter…
Sobolev homeomorphic extensions onto John domains
2020
Given the planar unit disk as the source and a Jordan domain as the target, we study the problem of extending a given boundary homeomorphism as a Sobolev homeomorphism. For general targets, this Sobolev variant of the classical Jordan-Schoenflies theorem may admit no solution - it is possible to have a boundary homeomorphism which admits a continuous $W^{1,2}$-extension but not even a homeomorphic $W^{1,1}$-extension. We prove that if the target is assumed to be a John disk, then any boundary homeomorphism from the unit circle admits a Sobolev homeomorphic extension for all exponents $p<2$. John disks, being one sided quasidisks, are of fundamental importance in Geometric Function Theory.