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871.
Review of the use of context in statistical image analysis 总被引:1,自引:0,他引:1
SUMMARY This paper is a review of the use of contextual information in statistical image analysis. After defining what we mean by 'context', we describe the Bayesian approach to high-level image analysis using deformable templates. We describe important aspects of work on character recognition and syntactic pattern recognition; in particular, aspects of the work which are relevant to scene understanding. We conclude with a review of some work on knowledge-based systems which use context to aid object recognition. 相似文献
872.
873.
K.N. Atkinson 《Long Range Planning》1985,18(3):26-32
The importance of education and training to this country's national performance is increasingly recognized. The introduction of the Youth Training Scheme, offering a year's workbased foundation training to 16- and 17-year-old entrants to the labour market, marks a major advance on Britain's poor record in this field. This article describes the Scheme's aims and mode of operation, traces its long gestation and reviews the progress during its first year. It relates the Scheme to wider national objectives for the development of training and to complementary initiatives in education, and discusses how it might be evaluated. 相似文献
874.
875.
J.N.K. Rao 《Revue canadienne de statistique》1997,25(1):1-21
Recent developments in sample survey theory include the following topics: foundational aspects of inference, resampling methods for variance and confidence interval estimation, imputation for nonresponse and analysis of complex survey data. An overview and appraisal of some of these developments are presented. 相似文献
876.
877.
Máire Ní Bhrolcháin 《Revue europeenne de demographie》1986,2(1):43-70
It has been suggested that work-motivated women may shorten their birth intervals to allow a faster return to the workforce. This paper: (i) considers the circumstances under which such contraction would be expected; (ii) argues that British conditions in the 1940s to 1970s were favourable to the adoption of this strategy, among others; (iii) discusses some methodological issues arising in the empirical treatment of the question; and (iv) presents the results of analyses of work and maternity history information, which suggest that during the post-war period, labour-force participation was associated with both a contraction and a lengthening of birth intervals. 相似文献
878.
Frank N. Laird 《Risk analysis》1989,9(4):543-550
Risk communication is seen as an important adjunct to the process of siting locally noxious facilities. To understand how risk communication might function in such a process, one needs to understand the political context that gives rise to public opposition to such facilities in the first place. This analysis draws on a variety of data to describe the decline of deference, a situation in which a hostile and alienated public is mobilized primarily through ad hoc voluntary organizations, and is increasingly reluctant to defer important decisions to institutional elites. Risk communication programs must be designed to offset the trends that result in the decline of deference. This conclusion differs markedly from the conventional wisdom that risk communication is merely a device for providing information to citizens so sthat they may make more rational decisions. 相似文献
879.
Bert N. Adams 《Journal of marriage and the family》2004,66(5):1076-1088
Many changes are occurring in the world's families. Some observers feel that the changes are destructive, whereas others see them as leading to new opportunities and understanding. Issues in international family studies include regional limitations and the various aspects of doing research cross‐culturally. Knowledge regarding certain categories of families, inheritance, and the social psychology of families is incomplete. There are, however, some universals and universal or worldwide changes, including movement toward individual partner choice, more divorces, lower fertility, and greater opportunities for women. 相似文献
880.
Studies of the intersection between environmental hazards and community demographics have concluded that environmental inequality is prevalent in communities across the United States. While these studies offer persuasive indicators of environmental inequality, we still have little understanding of the social forces involved in the production of these unequal outcomes. Drawing on a case study of a community of color facing illegal dumping, I propose an environmental justice framework to explain the social dynamics that produced this outcome. 相似文献