Search results for "penalty"
showing 10 items of 56 documents
Coherent conditional probabilities and proper scoring rules
2011
In this paper we study the relationship between the notion of coherence for conditional probability assessments on a family of conditional events and the notion of admissibility with respect to scoring rules. By extending a recent result given in literature for unconditional events, we prove, for any given strictly proper scoring rule s, the equivalence between the coherence of a conditional probability assessment and its admissibility with respect to s. In this paper we focus our analysis on the case of continuous bounded scoring rules. In this context a key role is also played by Bregman divergence and by a related theoretical aspect. Finally, we briefly illustrate a possible way of defin…
The Review Power of the Supreme Court of the People’s Republic of China on Death Penalty Cases
2008
A penalized approach to covariate selection through quantile regression coefficient models
2019
The coefficients of a quantile regression model are one-to-one functions of the order of the quantile. In standard quantile regression (QR), different quantiles are estimated one at a time. Another possibility is to model the coefficient functions parametrically, an approach that is referred to as quantile regression coefficients modeling (QRCM). Compared with standard QR, the QRCM approach facilitates estimation, inference and interpretation of the results, and generates more efficient estimators. We designed a penalized method that can address the selection of covariates in this particular modelling framework. Unlike standard penalized quantile regression estimators, in which model selec…
Variable selection with unbiased estimation: the CDF penalty
2022
We propose a new SCAD-type penalty in general regression models. The new penalty can be considered a competitor of the LASSO, SCAD or MCP penalties, as it guarantees sparse variable selection, i.e., null regression coefficient estimates, while attenuating bias for the non-null estimates. In this work, the method is discussed, and some comparisons are presented.
A review on some discrete variational techniques for the approximation of essential boundary conditions
2022
We review different techniques to enforce essential boundary conditions, such as the (nonhomogeneous) Dirichlet boundary condition, within a discrete variational framework, and especially techniques that allow to account for them in a weak sense. Those are of special interest for discretizations such as geometrically unfitted finite elements or high order methods, for instance. Some of them remain primal, and add extra terms in the discrete weak form without adding a new unknown: this is the case of the boundary penalty and Nitsche techniques. Others are mixed, and involve a Lagrange multiplier with or without stabilization terms. For a simple setting, we detail the different associated for…
Los infractores de tráfico persistentes: el consumo de alcohol y la personalidad como predictores de la retirada del permiso de conducir
2020
ABSTRACT Traffic safety is an important social problem. Many accidents are due to non-compliance with traffic regulations. Serious or repeated offenses are sanctioned with penalty points or court conviction, and sanctions can lead to disqualification from driving. This paper explores the relevance of alcohol consumption and personality factors as predictors of driving disqualification. The aim of the study is to determine whether the behaviors of persistent offenders and their propensity for law-breaking are related to their characteristics and patterns of drinking. A sample of 358 drivers participated in the study: 126 non-offender habitual drivers and 232 persistent traffic offenders disq…
The death penalty in Valencia (1450-1500), numbers, urban spaces and funeral ritualities from the Brotherhood of Innocents and Helpless
2021
Mediante una combinación de fuentes documentales de origen y procedencia diversa, se han computado fehacientemente 737 ejecuciones en Valencia entre los años 1450 y 1500. El artículo analiza este aspecto de la realidad social, judicial y política de la Valencia del Renacimiento a la luz de los recientes planteamientos historiográficos sobre la materia. Se destaca el impacto del Santo Oficio (a partir de 1482) dentro del contexto penal de la ciudad, se analiza el papel restaurador y reconciliador de la Cofradía de Inocentes y Desamparados, y se aborda la contribución de esta singular hermandad a la re-significación de los espacios urbanos y periurbanos. Through a combination of documentary s…
Thermal buckling optimization of composite laminates by evolution strategies
2000
Abstract Thermal buckling optimization of laminated composite plates subject to a temperature rise is presented in this paper. Aerospace structures require such components that are able to withstand the external environment loads without loss of stability. The discrete optimal design problem, formulated under strain and ply contiguity constraints is solved using evolution strategies, a guided random-search method. Two different constraint handling methods are investigated and compared: the disregarding infeasible solutions and the classical penalty function approach. The results are also compared with an exact enumerative study conducted on the problem, showing the effectiveness and perform…
Wolność pracy jako przesłanka ograniczająca swobodę kontraktowania - wybrane problemy
2022
Zgodnie z art. 65 ust. 1 Konstytucji RP każdemu zapewnia się wolność wyboru i wykonywania zawodu oraz wyboru miejsca pracy. Wpływ wyrażonej we wskazanym przepisie wolności pracy na swobodę kształtowania umownych stosunków pracy jest wciąż otwartym polem do dyskusji prawniczej. W prezentowanym tekście autorzy zmierzają do rozstrzygnięcia, czy zasada wolności pracy może zostać uznana za przesłankę ograniczającą swobodę kontraktowania. Zagadnienie to, mające charakter dogmatyczny, poddane zostało analizie systemowej. Autorzy przyjmują, że z perspektywy stosunków prywatnoprawnych wolność pracy należy ujmować jako element obiektywnego, preferowanego porządku wartości społeczno-gospodarczych (zas…
High-fidelity analysis of multilayered shells with cut-outs via the discontinuous Galerkin method
2021
Abstract A novel numerical method for the analysis of multilayered shells with cut-outs is presented. In the proposed approach, the shell geometry is represented via either analytical functions or NURBS parametrizations , while generally-shaped cut-outs are defined implicitly within the shell modelling domain via a level set function . The multilayered shell problem is addressed via the Equivalent-Single-Layer approach whereby high-order polynomial functions are employed to approximate the covariant components of the displacement field throughout the shell thickness. The shell governing equations are then derived from the Principle of Virtual Displacements of three-dimensional elasticity an…