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1.
Nowadays airborne laser scanning is used in many territorial studies, providing point data which may contain strong discontinuities. Motivated by the need to interpolate such data and preserve their edges, this paper considers robust nonparametric smoothers. These estimators, when implemented with bounded loss functions, have suitable jump‐preserving properties. Iterative algorithms are developed here, and are equivalent to nonlinear M‐smoothers, but have the advantage of resembling the linear Kernel regression. The selection of their coefficients is carried out by combining cross‐validation and robust‐tuning techniques. Two real case studies and a simulation experiment confirm the validity of the method; in particular, the performance in building recognition is excellent. 相似文献
2.
Deborah Laible Gustavo Carlo Tia Murphy Mairin Augustine Scott Roesch 《Social Development》2014,23(4):734-752
The goal of this study was to examine how aspects of self‐regulation and negative emotionality predicted children's co‐operative and prosocial behavior concurrently and longitudinally using the National Institute of Child Health and Human Development (NICHD) Study of Early Child Care and Youth Development. Mothers completed measures of children's temperamental proneness to negative emotionality and self‐regulation at 54 months. Teachers and parents completed measures of children's co‐operative and prosocial behavior at 54 months, first grade, and third grade. A latent profile analysis of the temperamental variables revealed four profiles of children: those high in regulation and low in negative emotionality, those moderate in regulation and moderate in negative emotionality, those low in regulation and high in negative emotionality, and finally those who were very low in regulation but high in anger emotionality. Generally, children with profiles that were high or moderate in terms of regulation and low or moderate in terms of negative emotionality were rated as the most prosocial and co‐operative. Children with profiles that were less well regulated and who were high in negative emotionality (particularly anger proneness) were rated as less co‐operative and prosocial by parents and teachers. 相似文献
3.
Esther A. Rutten Carlo Schuengel Evelien Dirks Geert Jan J. M. Stams Gert J. J. Biesta Jan B. Hoeksma 《Social Development》2011,20(2):294-315
This study examined antisocial and prosocial behavior of N = 439 adolescent athletes between 14 and 17 years of age (67 teams). Multi‐level analyses showed that team membership explained 20 and 13 percent of the variance in antisocial and prosocial behavior in the sports context, respectively. The team effects suggest that aggregating antisocial or prosocial adolescents within teams may partially explain differences in antisocial and prosocial behavior among athletes in the sports context. A trend was found toward a relation between higher levels of moral reasoning within teams, and less antisocial behavior in the sports context. Favorable moral atmosphere was positively associated with more prosocial behavior in the sports context. Finally, supportive coach–athlete relationships were associated with both less antisocial and more prosocial behavior in the sports context. 相似文献
4.
Bayesian Conditional Mean Estimation in Log‐Normal Linear Regression Models with Finite Quadratic Expected Loss
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Log‐normal linear regression models are popular in many fields of research. Bayesian estimation of the conditional mean of the dependent variable is problematic as many choices of the prior for the variance (on the log‐scale) lead to posterior distributions with no finite moments. We propose a generalized inverse Gaussian prior for this variance and derive the conditions on the prior parameters that yield posterior distributions of the conditional mean of the dependent variable with finite moments up to a pre‐specified order. The conditions depend on one of the three parameters of the suggested prior; the other two have an influence on inferences for small and medium sample sizes. A second goal of this paper is to discuss how to choose these parameters according to different criteria including the optimization of frequentist properties of posterior means. 相似文献
5.
Cinnirella Alessandro Bisci Carlo Nardi Sandro Ricci Emanuela Palermo Francesco Alessandro Bracchetti Luca 《Urban Ecosystems》2020,23(2):255-269
Urban Ecosystems - The spread of the red palm weevil is now a very severe problem on a global scale. In this paper, we investigate its spread during the 2007–2013 period in a coastal urban... 相似文献
6.
Carlo Milana 《LABOUR》1989,3(3):109-128
ABSTRACT: This paper attempts to estimate the relative importance of various factors that, under an increasing external constraint, have contributed to the competitiveness and output growth in the Italian industry during the last eighteen years. In particular, it tries to evaluate the effectiveness of the few relevant supply-side policies adopted in Italy, which were based essentially on labour oriented policy instruments. It is found that technological change was far more important than policy factors for restructuring and reconverting industrial activities and increasing the level of production. 相似文献
7.
8.
Lorenza Campagnolo Carlo Carraro Fabio Eboli Luca Farnia Ramiro Parrado Roberta Pierfederici 《Social indicators research》2018,136(1):73-116
This paper describes the methodology and main results from an overall assessment on future achievement of sustainable development goals. The proposed approach consists of a model-based, looking forward composite sustainable development index—FEEM sustainability index—projected to the future. It represents a first experiment to reproduce the future dynamics of sustainable development indicators over time and worldwide and to assess future sustainability under different scenarios. The assessment presented here is relevant under different viewpoints. First, it has a very broad nature in terms of both geographical coverage and meaningfulness: it considers the multi-dimensional structure of sustainable development by combining relevant indicators belonging to economic, social and environmental pillars for the whole world. Second, the modelling framework to compute future trends of indicators relies upon a recursive-dynamic computable general equilibrium model. This is an ideal tool to look simultaneously at the development of many indicators, their potential interactions and trade-offs, and more in general to the consequences of economic development and/or policies aiming to increase performance in one or more indicators; it allows measuring the overall sustainability under alternative scenarios, across countries and over time. Finally, regarding the construction of the composite indicator, the application of fuzzy measures and Choquet integral increases substantially the model capability allowing taking into account the interactions that exist among the three main pillars of sustainability and the considered indicators. 相似文献
9.
Laura M. Padilla‐Walker Gustavo Carlo Katherine J. Christensen Jeremy B. Yorgason 《Journal of research on adolescence》2012,22(3):400-408
This study examined the bidirectional relations between authoritative parenting and adolescents’ prosocial behavior over a 1‐year time period. Data were taken from Time 2 and 3 of the Flourishing Families Project, and included reports from 319 two‐parent families with an adolescent child (M age of child at Time 2 = 12.34, SD = 1.06, 52% girls). Cross‐lag analyses supported bidirectional relations between parenting and prosocial behavior with particular emphasis on the role of the adolescents’ prosocial behavior on subsequent parenting. Results also varied as a function of the reporter. Discussion focuses on the implications for understanding the multifaceted nature of prosocial development in adolescence. 相似文献
10.
Carlo Borzaga 《International Review of Sociology》2016,26(1):31-47
Social cooperatives are the most widespread social enterprise type in Italy. Their evolution has stimulated the development of diverse interpretative frameworks of social enterprise determinants: the mainstream one is that social cooperatives are the outcome of contracting out policies. Through a critical investigation of social cooperatives’ emergence, integration into public policies, and reaction to the financial crisis, the authors refocus attention to one of the key modes of creation of social enterprises that has not gained the attention it deserves: the bottom-up dynamic. The analysis carried out sheds light on the contribution of citizens’ mobilization to institutional change and confirms that social enterprises can also emerge in an unprepared and hostile ideological, economic and political context. 相似文献