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With the rapid development of the wireless internet and mobile computing, more and more mobile-based services penetrate in business and personal life. Among them, LBS is one of the more significant services. So taken the multi-scale road network datasets in LBS as examples, this paper focuses on the multi-scale modeling, representation, and adaptive visualization for spatial data from the view of...
The access control mechanism is the one key issue in realizing safety interoperation between distributed information systems. However, the existing multi-domains interoperation access control based on RBAC can not satisfy the safety needs of information system interoperability, in which the sort of users and information are diverse and update frequently. Therefore, the interoperation access control...
The research on innovation has become an important trend from the perspectives of system and its relative system theories. According to knowledge about enterprise innovation and self-organization theory, innovations include culture innovation, knowledge innovation, institution innovation, technology innovation, management innovation, and so on. Innovation integration is defined as a dynamic innovation...
Since many differences may arise in cognition, abstraction and representation during multi-scale road network compositive modeling, this paper proposes an hierarchical ontology-based multi-scale entity-Relation modeling strategy, it considers ontology integration from the bottom level-general ontology in geographical science, to task ontology for road network features cognition, definition,abstraction,...
Multi-scale representations for geographical entities is one of research focuses in the field of multi-scale spatial database, Compared with the traditional GIS model, the essential modeling mechanism and strategies for building multi-scale data model are explored. Taken the road feature as an example, a detailed description of multi-representation model elements in the multi-scale model are provided,...
Inter-connectivity maintenance among multi-representations exists as a foundational task in building multi-scale data model, however, the existing methods are still not satisfactory in practice. In this context, the paper considers that the inter-connectivity among multiple representations can be only achieved if the multi-scale model is capable of explicitly inter-relating them and dealing with their...
This paper investigates the following factors: (1) population scale; (2) income level; (3) the expenditure proportion on industrial products; (3) wages level; (5) transaction costs; (6) elasticity of substitution; (7) marginal costs, which functions acted on the horizontal FDI scale of host country from developed country in a monopolistic competition model composed of the developed country enterprises...
To suppress the decoherence, in addition to error-correcting codes and the error-avoiding codes, bang-bang control has also been introduced. Here in this work, we discuss how to suppress decoherence in quantum systems using bang-bang control, two cases have been discussed, adiabatic decoherence alone, and decoherence with both phase and amplitude damping. We also discussed the different cases when...
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