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51.
In this study, the components of extra-Poisson variability are estimated assuming random effect models under a Bayesian approach. A standard existing methodology to estimate extra-Poisson variability assumes a negative binomial distribution. The obtained results show that using the proposed random effect model it is possible to get more accurate estimates for the extra-Poisson variability components when compared to the use of a negative binomial distribution where it is possible to estimate only one component of extra-Poisson variability. Some illustrative examples are introduced considering real data sets. 相似文献
52.
Julio Cezar Souza Vasconcelos Gauss Moutinho Cordeiro Edwin Moises Marcos Ortega dila Maria de Rezende 《Journal of applied statistics》2021,48(2):349
We define the odd log-logistic exponential Gaussian regression with two systematic components, which extends the heteroscedastic Gaussian regression and it is suitable for bimodal data quite common in the agriculture area. We estimate the parameters by the method of maximum likelihood. Some simulations indicate that the maximum-likelihood estimators are accurate. The model assumptions are checked through case deletion and quantile residuals. The usefulness of the new regression model is illustrated by means of three real data sets in different areas of agriculture, where the data present bimodality. 相似文献
53.
Mark A. van de Wiel Dennis E. Te Beest Magnus M. Münch 《Scandinavian Journal of Statistics》2019,46(1):2-25
Empirical Bayes is a versatile approach to “learn from a lot” in two ways: first, from a large number of variables and, second, from a potentially large amount of prior information, for example, stored in public repositories. We review applications of a variety of empirical Bayes methods to several well‐known model‐based prediction methods, including penalized regression, linear discriminant analysis, and Bayesian models with sparse or dense priors. We discuss “formal” empirical Bayes methods that maximize the marginal likelihood but also more informal approaches based on other data summaries. We contrast empirical Bayes to cross‐validation and full Bayes and discuss hybrid approaches. To study the relation between the quality of an empirical Bayes estimator and p, the number of variables, we consider a simple empirical Bayes estimator in a linear model setting. We argue that empirical Bayes is particularly useful when the prior contains multiple parameters, which model a priori information on variables termed “co‐data”. In particular, we present two novel examples that allow for co‐data: first, a Bayesian spike‐and‐slab setting that facilitates inclusion of multiple co‐data sources and types and, second, a hybrid empirical Bayes–full Bayes ridge regression approach for estimation of the posterior predictive interval. 相似文献
54.
Alberto del Rey Jesús Rivera‐Navarro Tania Paniagua de la Iglesia 《International migration (Geneva, Switzerland)》2019,57(3):155-170
This article analyses the labour trajectory of migrant women in domestic service. The research considers women's working conditions upon arrival, or their “migrant capital” (i.e. their human, social and economic capital) as the defining factors in their labour trajectories. The study, conducted on a sample of migrant women in domestic service, reveals the different value each type of capital has at each stage of a labour trajectory. The social network is the core capital in their first job. Nevertheless, the key factors in labour mobility are human capital and a household's financial needs. The processes of administrative regularization and family reunification prompt far‐reaching changes in these women's labour trajectories. Finally, labour trajectories during the economic crisis have been shaped by financial needs, leading to a decapitalization of the human capital acquired, with even legal status surrendering its value. 相似文献
55.
Dobbs Cynnamon Escobedo Francisco J. Clerici Nicola de la Barrera Francisco Eleuterio Ana Alice MacGregor-Fors Ian Reyes-Paecke Sonia Vásquez Alexis Zea Camaño Jorge Danilo Hernández H. Jaime 《Urban Ecosystems》2019,22(1):173-187
Urban Ecosystems - Latin America and the Caribbean (LAC) is one of the most urbanized and biologically diverse regions in the world but is often characterized by weak environmental governance and... 相似文献
56.
Many central banks set inflation targets over the medium term and inflation projections are a key input for monetary policy decision making. In this paper, we present the procedures used by the Spanish Central Bank staff to project consumer price inflation. We also provide some illustrations of their policy uses, such as fan charts, deflation probabilities and the monitoring of inflation targets. 相似文献
57.
Mia Angélica Sosa-Provencio Annmarie Sheahan Rayanna Fuentes Simona Muñiz Rosa Elena Prada Vivas 《Race Ethnicity and Education》2019,22(2):211-230
This article details one teacher preparation course centering Latin American Testimonio narratives of struggle/survival amid structural oppression for use in secondary curriculum. As our class of predominantly Latina/o students and two Latina instructors engaged Testimonio pedagogy, we fashioned a hopeful alternative to our own experiences of intergenerational oppression. While research indicates that the experiences and histories of pre-service Teachers of Color lend pedagogical strength and critical consciousness to teacher education, three Latina pre-service students highlight the ways in which Testimonio became more than a pedagogical approach. Testimonio’s collectivity, resistance, hope, and assertions of voice and dignity moved through them not as educators first but as (great-grand)daughters of oppressed though still-resilient People(s). Testimonio emboldened these Latina pre-service educators to recognize and validate their own inherited multiliteracies, (re)claim their connectedness to land, and articulate their visions for more equitable schooling. This work advances research into the essentiality of engaging race and ethnicity in K-12 and teacher education curriculum and pedagogy. 相似文献
58.
Papen Marie-Christin Niemand Thomas Siems Florian U. Kraus Sascha 《Review of Managerial Science》2019,13(4):725-747
Review of Managerial Science - This article examines positive effects of customer stress drawn upon the theory of excitation transfer. Contrary to previous marketing and management literature, the... 相似文献
59.
Maria Fatima Ruiz Paiva Félix Neto María Teresa Muñoz Sastre Nadine Laumond-Salvatore Sheila Rivière Etienne Mullet 《Social indicators research》2009,94(1):173-181
The study was aimed at replicating on a Portuguese sample the seven-factor model of life appraisal (physical autonomy, love
life, family life, social life, occupational life, finances, and leisure life) that was suggested by Salvatore and Munoz Sastre
Social Indicators Research 53:229–255 (2001). A sample of 1,111 Portuguese participants, aged 17–85, was presented with the Appraisal of Life Questionnaire. The “domain” model of life appraisal satisfactorily accounted for the data gathered on the Portuguese sample. Regarding
finances and occupational life, Portuguese scores were lower than French scores. Regarding the occupational score and the
leisure score, a clear linear decrease as a function of age was evidenced in the Portuguese sample. Finally, regarding the
family score and the financial score, a non-linear relationship with age was found. An increase was observed from young adult
age to adult age, and a decrease was observed from adult age to older age. A strong decrease in the physical autonomy scores
among Portuguese females was also observed. 相似文献
60.
忧患意识教育是思想政治教育的重要组成部分,它对于大学生树立正确的世界观、人生观和价值观具有重要的作用。专题教学不仅能激发大学生的兴趣,提升课堂教学效果,同时在培养学生的忧患意识方面也具有较好的效果。专题教学与思想政治教育相互融合、并行不悖,同样具有"育人"功效。通过一些必要的技术环节的设计,专题教学能够为大学生忧患意识培养提供有效的保障。 相似文献