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21.
P. Agarwal Corresponding author 《International journal of geographical information science》2013,27(5):501-536
Ontology is a significant research theme in GIScience. While some researchers believe that the progress in GIScience is being directed through an engagement with the concept of ontology, some dismiss it as irrelevant. This paper is aimed at (i) exploring the theoretical and practical roles of ontologies; (ii) making the definitions and terminology explicit; (iii) assessing the applicability of ontology to problems in the geographical domain; and (iv) assessing whether a unified approach to ontology exists in GIScience. The results will be helpful for GIScientists in (i) understanding the validity of employing ontology within their own work, (ii) assessing what operational framework of terms and methods to use for developing their own ontology, and (iii) to assess what existing ontological models are available and applicable within their domain or application. A comprehensive and critical review will also help in identifying the signficant issues and directing future research agenda in GIScience. 相似文献
22.
《Geoforum》2015
Ecological modernist approaches to climate change are premised upon knowing carbon emissions. I ask how corporate environmental managers know and do carbon, i.e., shape the reality of emissions. I argue that for managers’ practical purposes carbon exists as malleable data. Based on ethnographic fieldwork over a period of 20 months in a Fortune 50 multinational corporation, I show that managers materially-discursively arrange heterogeneous entities – databases, files, paper, words, numbers – in and between office spaces, enabling them to stage emission facts as stable and singular. Employing Annemarie Mol’s work on multiplicity, I show that multiple enactments of carbon hang together not by an antecedent body (CO2) but through ongoing configurations of data practices. Disillusioning promissory economic discourses of ‘internalisation’, I demonstrate: Management is materially premised upon preventing purportedly internalised carbon realities from entering capitalist core processes. This undermines carbon economics’ realist promises. Staging some carbon realities as in control is premised upon managers’ ongoing, reflexive, partial and always situated configuration of, e.g., standards, formal meetings or digital data practices in which humans do carbon-as-data. Carbon practices are materially-discursively aligned, forming a configuration. This configuration effects carbon as a malleable and locally configurable space rather than as a closed fact. Reconstructing managers’ practices as configuring carbon-as-dataspace, I argue, allows grasping adequately the contingency and constraints of managing carbon as a particular material-discursive form of environment. In conclusion I generalise the environmental management office as a space that can be configured to stage, beyond carbon, other global environments as well. 相似文献
23.
地理本体的研究进展与分析 总被引：23，自引：0，他引：23
地理本体是地理信息科学中的一个新兴的和正在发展的研究领域,从提出至今仅有10年的历史。因此,有重点系统分析地理本体研究的发展历程与进展,对中国在此方面的研究定位具有重要意义。文章在深入分析科学领域本体的定义基础上,进行了地理本体定义,探讨了地理本体的研究意义,列举了国际上与地理本体相关的主要计划与学术会议,详细剖析了当前国内外的地理本体理论研究与应用方面取得的进展。地理本体研究已成为国际GIS领域一个重要的新兴研究方向并得到了蓬勃发展,而国内在这方面的研究才刚刚开始,只有少数学者开展了一些探索性的思考和研究。因此,中国应紧跟国际地理本体的研究动态,积极开展我国自己的地理本体理论、方法和应用研究。 相似文献
24.
The integration of distributed geospatial data is a great issue in GI Science. Hereby, the collection of data from different systems and different structures as well as across country borders is a problem. We explain a model‐based four‐step approach to conceptual data modelling. Within this approach, we introduce a methodology to map data models on the conceptual level without touching data formats. First, we developed a conceptual mapping language called “UMLT” which is the core of our approach. Furthermore, we integrated UMLT into the Model‐Driven Architecture where a conceptual model mapping is referred to as a platform independent model mapping. Finally, the data format transformation is deduced from the model mapping automatically. This represents the implementation mapping from a platform independent model to a platform specific model. Together with transformation operations for attribute mapping, this approach is a means for effective and enhanced semantic interoperability. 相似文献