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《Journal of Geo-Information Science》 2014-05
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Case Analysis and Context Modeling of Location Map

QI Xiaofei;WANG Guangxia;CUI Xiufei;ZHANG Lan;Institute of Geospatial Information,Information Engineering University;Troops of 65014;  
In recent years, with the rapid development of location-based services, significant changes have taken place on location maps which are considered as new map products in research context compared with the general map. Those changes expand location map's research areas and scope. This paper is mainly divided into three parts. First of all, it analyzes the relationship between context theory and location map, and points out the significance of context theory in location services especially in the application of location map. Then, it develops the context model, which has two main problems in mobile services: one is that different context information is not relevant, the other is that it is difficult to realize the context inference. So we should analyze the role of activity information in context modeling according to its importance. Also it establishes the logical structure of the location map's context model by using the formal description language"ontology", proposing the three-layer model of location map which is based on active layer, researching the content and features of activity model, behavior model and context information model, and giving further analysis on the relationships between activity model and different behaviors as well as the relationships between behavior model and various context information. Finally, this paper gives an example about a user's check-in behavior at the airport to validate the process and methods of location map's context model that described above.
【Fund】: 国家“863”计划资助项目(2013AA12A202)
【CateGory Index】: P208
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