Search results for " descent"
showing 7 items of 47 documents
Estimation of sparse generalized linear models: the dglars package
2013
dglars is a public available R package that implements the method proposed in Augugliaro, Mineo and Wit (2013) developed to study the sparse structure of a generalized linear model. This method, called dgLARS, is based on a differential geometrical extension of the least angle regression method (LARS). The core of the dglars package consists of two algorithms implemented in Fortran 90 to efficiently compute the solution curve; specifically a predictor-corrector algorithm and a cyclic coordinate descent algorithm.
Familia y parentesco wayuu. Antecedentes y cuestiones abiertas
2007
The afterworld space in the "Poem strip" (1969) by Dino Buzzati
2018
L’obiettivo del contributo è l’analisi dello spazio oltremondano in Poema a fumetti(1969) di Dino Buzzati, graphic novelante-litteram. Buzzati riscrive, in chiave ultramoderna e laica, sia il mito di Orfeo ed Euridice, restituendo la centralità alla potenza della musica, sia il mito della discesa agli inferi, toposassoluto della letteratura italiana a partire da Dante e rappresentazione allegorica dell’oltretomba cristiano. In particolare Buzzati inventa una rappresentazione visiva dello spazio dell’aldilà dove sono essenziali due elementi: la continuità/discontinuità dei due mondi, nominalmente diversi, e le cornici che permettono il passaggio da un mondo all’altro. Il motivo ricorrente di…
Orientaciones para la planificación de la cooperacion para el desarrollo en entidades locales de la Comunidad Valenciana
2014
El documento consiste en una guia de orientación para las acciones de diseño y planificación de la cooperación para el desarrollo en el ámbito de la Comunitat Valencina.
Sparse nonnegative tensor decomposition using proximal algorithm and inexact block coordinate descent scheme
2021
Nonnegative tensor decomposition is a versatile tool for multiway data analysis, by which the extracted components are nonnegative and usually sparse. Nevertheless, the sparsity is only a side effect and cannot be explicitly controlled without additional regularization. In this paper, we investigated the nonnegative CANDECOMP/PARAFAC (NCP) decomposition with the sparse regularization item using l1-norm (sparse NCP). When high sparsity is imposed, the factor matrices will contain more zero components and will not be of full column rank. Thus, the sparse NCP is prone to rank deficiency, and the algorithms of sparse NCP may not converge. In this paper, we proposed a novel model of sparse NCP w…
Phase equilibria of Pantelleria trachytes (Italy): constraints on pre-eruptive conditions and on the metaluminous to peralkaline transition in silici…
2018
Pantelleria Island is the type locality of pantellerite, an iron and alkali-rich rhyolite (P.I=molar Na2O+K2O/Al2O3 >1.05). Peralkaline rhyolites (i.e pantellerite and comendite) and trachytes usually represent the felsic end-members in continental rift systems (e.g., Pantelleria, Tibesti, Ethiopia, Afar, Kenya, Bain and Range, South Greenland) and in oceanic sland settings (Socorro Is., Easter Is., Iceland and Azores). The origin of peralkaline rhyolites in the different tectonic settings is still a matter of debate and three hypotheses have been suggested: (a) crystal fractionation of alkali-basalt in a shallow reservoir to produce a trachyte which subsequently gives rise to a pantelle…
Cambio estructural en economías en transición : el impacto de la privatización sobre la restricción presupuestaria de las empresas rusas
1999
La transición desde una economía de planificación central hacia una economía de mercado exigía el establecimiento de las condiciones necesarias para que se produjese una transformación de la gestión empresarial, de las cuales la privatización de las empresas estatales constituía un elemento vital. No obstante, resultaba obvio que sin algunos cambios en el ámbito microeconómico las esperanzas para una transformación del sistema económico, tras más de seis décadas de economía planificada, no podrían verse cumplidas. Un cambio exógeno en la estructura de propiedad estrictamente en términos legales -esto es, de una regla formal- sin que los gestores de las empresas asimilen el cambio, transform…