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71.
Roberto Benedetti Monica Pratesi Nicola Salvati 《Statistical Methods and Applications》2013,22(1):81-95
Small area estimators are often based on linear mixed models under the assumption that relationships among variables are stationary across the area of interest (Fay–Herriot models). This hypothesis is patently violated when the population is divided into heterogeneous latent subgroups. In this paper we propose a local Fay–Herriot model assisted by a Simulated Annealing algorithm to identify the latent subgroups of small areas. The value minimized through the Simulated Annealing algorithm is the sum of the estimated mean squared error (MSE) of the small area estimates. The technique is employed for small area estimates of erosion on agricultural land within the Rathbun Lake Watershed (IA, USA). The results are promising and show that introducing local stationarity in a small area model may lead to useful improvements in the performance of the estimators. 相似文献
72.
The method of moments has been widely used as a simple alternative to the maximum likelihood method, mainly because of its efficiency and simplicity in obtaining parameter estimators of a mixture of two binomial distributions. In this paper, an alternative estimate is proposed which is as competitive as of the method of moments when comparing the mean squared error and computational effort. 相似文献
73.
You Found us Doing This,This Is Our Way:Criminalizing Second Lines,Super Sunday,and Habitus in Post-Katrina New Orleans
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Super Sunday is a historically Afri-can American carnival that takes place on the weekends surrounding St. Joseph's day ( March 19) .Parade participants wear elaborately beaded and feathered costumes m... 相似文献
74.
Piero Demetrio Falorsi Giorgio Alleva Fabio Bacchini Roberto Iannaccone 《Statistical Methods and Applications》2005,14(1):83-99
Various approaches to obtaining estimates based on preliminary data are outlined. A case is then considered which frequently
arises when selecting a subsample of units, the information for which is collected within a deadline that allows preliminary
estimates to be produced. At the moment when these estimates have to be produced it often occurs that, although the collection
of data on subsample units is still not complete, information is available on a set of units which does not belong to the
sample selected for the production of the preliminary estimates. An estimation method is proposed which allows all the data
available on a given date to be used to the full-and the expression of the expectation and variance are derived. The proposal
is based on two-phase sampling theory and on the hypothesis that the response mechanism is the result of random processes
whose parameters can be suitably estimated. An empirical analysis of the performance of the estimator on the Italian Survey
on building permits concludes the work.
The Sects. 1,2,3,4 and the technical appendixes have been developed by Giorgio Alleva and Piero Demetrio Falorsi; Sect. 5
has been done by Fabio Bacchini and Roberto Iannaccone.
Piero Demetrio Falorsi is chief statisticians at Italian National Institute of Statistics (ISTAT); Giorgio Alleva is Professor
of Statistics at University “La Sapienza” of Rome, Fabio Bacchini and Roberto Iannaccone are researchers at ISTAT. 相似文献
75.
The subjective nature of chronic pain leads to challenges in describing, treating, and accommodating pain. Twenty older women, who engaged in focus groups, and eight of whom also participated in individual interviews, discussed the influence of chronic pain on their perception of self as well as daily functioning. Managing pain forced many of the women to withdraw from social activities that they valued and interfered with sleep patterns, household tasks and recreational activities. Varied acceptance by social network members added to the challenge of adjusting to complications associated with pain. Self-care practices that supported independence contributed to women's perceived success in daily functioning. 相似文献
76.
Anke Müller-Peters Roland Pepermans Guido Kiell Nicole Battaglia Suzanne Beckmann Carole Burgoyne Minoo Farhangmehr Gustavo Guzman Erich Kirchler Cordula Koenen Flora Kokkinaki Mary Lambkin Dominique Lassarre Francois-Regis Lenoir Roberto Luna-Arocas Agneta Marell Katja Meier Johanna Moisander Guido Ortona Ismael Quintanilla David Routh Francesco Scacciati Liisa Uusitalo Yvonne M. van Everdingen W. Fred van Raaij Richard Wahlund 《Journal of Economic Psychology》1998,19(6):663-680
77.
Roberto P. Franzosi 《Theory and Society》2010,39(6):593-629
At the heart of this article is a structural approach to narrative, based on the work of Propp, Labov, van Dijk, Halliday,
and others. The article highlights the structural features of narrative—basically, the organization of the genre around the
semantic template actor-action-actor (syntactically rendered as subject-verb-object but where, in narrative, the subject is
typically a social actor and the verb a social action) and the modifiers of each element of this triplet, such as time and
space of action—and shows how to implement this structure in a computer environment and how to use this methodological tool
in socio-historical research (namely, the rise of Italian fascism, 1919–22). But, taking a cue from Halliday’s cover jacket
of his An Introduction to Functional Grammar, with its representation of a color circle, the paper takes the reader on an intellectual journey from Newton to Goethe—and
the quality versus quantity debate—to Goethe and Propp, to end, back home, with Simmel and Weber. 相似文献
78.
Girella Laura Tizzano Roberto Ferrari Elisa Rita 《Journal of Management and Governance》2019,23(2):373-402
Journal of Management and Governance - Since the beginning of the 2000s, the concept of Business Model has been explored by scholars from a broad range of business studies and particularly those in... 相似文献
79.
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