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空间信息检索及其数据库概化技术 被引量:5
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作者 陆桑璐 周晓方 +1 位作者 陈贵海 谢立 《软件学报》 EI CSCD 北大核心 2002年第8期1534-1539,共6页
在一个空间数据库中,空间数据总是以最细节的信息进行储存,以满足不同应用的需求.制图学中的制图综合就是为不同的应用生成恰当的细节层面.随着空间数据库应用的日益广泛,以及越来越多的基于Internet的空间应用的出现,对空间数据的有效... 在一个空间数据库中,空间数据总是以最细节的信息进行储存,以满足不同应用的需求.制图学中的制图综合就是为不同的应用生成恰当的细节层面.随着空间数据库应用的日益广泛,以及越来越多的基于Internet的空间应用的出现,对空间数据的有效自动综合成为一个紧要问题.深入探讨了当前这一领域存在的问题,提出一种面向数据库的概化处理技术,利用空间索引机制z-value进行扩展,并将其应用到空间数据的自动综合技术中,通过对空间数据库的设计和对空间操作的处理来实现一个有效的空间数据库自动综合系统. 展开更多
关键词 空间信息检索 概化技术 空间数据库 制图综合 INTERNET 空间索引
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Contextualizing physical literacy in the school environment: The challenges 被引量:3
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作者 Darla M.Castelli Jeanne M.Barcelona Lynne Bryant 《Journal of Sport and Health Science》 SCIE 2015年第2期156-163,共8页
The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus... The intent of this paper is to conceptualize physical literacy in the school environment within the United States educational system. Evolution of physical literacy from both a general education and disciplinary focus is overviewed. The challenges of transitioning from a physically educated to a physically literate person as the primary learning outcome of physical education may inhibit progress. Five prioritized recom- mendations are made to assist teachers in overcoming such barriers: (a) whole of school approach, (b) effective, differentiated pedagogy, (c) integration of technology for individualized tracking of progress, (d) supportive school climate, and (e) alignment of local efforts with national initiatives. 展开更多
关键词 Differentiated instruction Physical activity Physical literacy Whole of school approach
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Forecasting and optimal probabilistic scheduling of surplus gas systems in iron and steel industry 被引量:5
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作者 李磊 李红娟 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第4期1437-1447,共11页
To make full use of the gas resource, stabilize the pipe network pressure, and obtain higher economic benefits in the iron and steel industry, the surplus gas prediction and scheduling models were proposed. Before app... To make full use of the gas resource, stabilize the pipe network pressure, and obtain higher economic benefits in the iron and steel industry, the surplus gas prediction and scheduling models were proposed. Before applying the forecasting techniques, a support vector classifier was first used to classify the data, and then the filtering was used to create separate trend and volatility sequences. After forecasting, the Markov chain transition probability matrix was introduced to adjust the residual. Simulation results using surplus gas data from an iron and steel enterprise demonstrate that the constructed SVC-HP-ENN-LSSVM-MC prediction model prediction is accurate, and that the classification accuracy is high under different conditions. Based on this, the scheduling model was constructed for surplus gas operating, and it has been used to investigate the comprehensive measures for managing the operational probabilistic risk and optimize the economic benefit at various working conditions and implementations. It has extended the concepts of traditional surplus gas dispatching systems, and provides a method for enterprises to determine optimal schedules. 展开更多
关键词 surplus gas prediction probabilistic scheduling iron and steel enterprise HP filter Elman neural network(ENN) least squares support vector machine(LSSVM) Markov chain
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Ambivalent Portrayals of Female Cyborgs in Oshii Mamoru's Ghost in the Shell and Innocence
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作者 Yoshie Endo 《Journal of Literature and Art Studies》 2012年第5期507-519,共13页
What we witness is that Oshii's narrative and patriarchal technology creates the female cyborgs, who simply mirror male heterosexual desire and who are denied agency in their role. Oshii does not imagine any possibil... What we witness is that Oshii's narrative and patriarchal technology creates the female cyborgs, who simply mirror male heterosexual desire and who are denied agency in their role. Oshii does not imagine any possibility that might destabilize his newly-imagined order, such as a cyborg that might upset heterosexuality. The absence of any female agency or desire in his cyber fantasy questions its subversive potential. Oshii seems to be immune to feminist theories on posthuman existence that conceptualizes subjectivity outside the gender polarities. Oshii describes a society where high technology only reinforces gender polarities. The representations of women's relationship to technology in Oshii's film, therefore, are quite problematic; the transgression of boundaries does not work out to reduce or annihilate domination by patriarchal needs and desires. Despite the fact that Oshii denies his female cyborgs a subject position other than that based exclusively in patriarchal fear and desire, his representations mark an ambivalence inherent in cyborg resistance, and feminist politics need to pay attention to such ambivalence. 展开更多
关键词 posthuman CYBORG doll PSYCHOANALYSIS
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