There are many kinds of real options,which are valuable,in each phase of the lifetime of an information technology(IT)project.However,in the current IT investment decision theory,real options that embedded in IT proje...There are many kinds of real options,which are valuable,in each phase of the lifetime of an information technology(IT)project.However,in the current IT investment decision theory,real options that embedded in IT projects are not considered. In this paper, the process of IT project decision and implementation is fully analyzed, the real options that may be embedded in an IT project are identified, and a real option analysis (ROA) method is proposed for evaluation of an IT project under uncertain business environment. ROA employs Black-Scholes expansion model and cancels the assumption that the cost of project is certain. The numerical example manifests that the ROA can better evaluate IT project and select the IT investment alternative. Finally, a road map is provided to help selecting the suitable evaluation method to make IT investment decision.展开更多
Aimed at solving the problems of road network object selection at any unknown scale, the existing methods on object selection are integrated and extended in this paper, and a new object interpolation method is propose...Aimed at solving the problems of road network object selection at any unknown scale, the existing methods on object selection are integrated and extended in this paper, and a new object interpolation method is proposed, which reflects the inheritable and transferable characteristics of related information among multi-scale representation objects, and takes the attribute effects into account. Then the basic idea, the overall framework and the technical flow of the interpolation are put forward, at the samet：me synthetical weight function of the interpolation method is defined and described. The method and technical strategies of object selection are extended, and the key problems are solved, including the dejign of the objective quantitative and structural selections based on the weight values, the interpolation experiment strategies and technical flows, the result of the test shows that the object interpolation method not only inherits the objects at smaller scales, but also takes the attribute effect into account when deriving objects from larger scales according to the road importance, which is a guarantee to objective selection of the road objects at middle scales.展开更多
This essay examines the degree to which Kant＇s understanding of external freedom and right are consistent with and can form a part of his moral philosophy. In doing so, this essay begins by looking at the foundation ...This essay examines the degree to which Kant＇s understanding of external freedom and right are consistent with and can form a part of his moral philosophy. In doing so, this essay begins by looking at the foundation and possibility of moral experience as it is presented in the Groundwork for the Metaphysics of Morals. This essay then turns to explore Kant＇s understanding of external freedom and right as set out in The Metaphysics of Morals and examines the apparent inconsistencies that exist between these concepts and Kant＇s explication of moral worth. After pointing out the distinction between right and morality, this essay goes on to argue that, strictly speaking, Kant＇s conception of external freedom and right cannot form part of his moral philosophy （as so defined in the Groundwork）. Finally, this essay concludes by arguing that although right and morality are irreconcilable, Kant＇s account of external freedom and right can nevertheless serve as part of his ＂moral＂ philosophy insofar as these concepts represent Kant＇s attempt to externalize the moral law, or simply expand the definition of morality to cover any action that accords with the right.展开更多
文摘There are many kinds of real options,which are valuable,in each phase of the lifetime of an information technology(IT)project.However,in the current IT investment decision theory,real options that embedded in IT projects are not considered. In this paper, the process of IT project decision and implementation is fully analyzed, the real options that may be embedded in an IT project are identified, and a real option analysis (ROA) method is proposed for evaluation of an IT project under uncertain business environment. ROA employs Black-Scholes expansion model and cancels the assumption that the cost of project is certain. The numerical example manifests that the ROA can better evaluate IT project and select the IT investment alternative. Finally, a road map is provided to help selecting the suitable evaluation method to make IT investment decision.
基金Supported by the National Natural Science Foundation of China （No. 40701147）, the Natural Science Foundation of Beijing （No. 8102014）, and the Posoctoral Science Foundation of China （Special Issue） （No. 200801096）.
文摘Aimed at solving the problems of road network object selection at any unknown scale, the existing methods on object selection are integrated and extended in this paper, and a new object interpolation method is proposed, which reflects the inheritable and transferable characteristics of related information among multi-scale representation objects, and takes the attribute effects into account. Then the basic idea, the overall framework and the technical flow of the interpolation are put forward, at the samet：me synthetical weight function of the interpolation method is defined and described. The method and technical strategies of object selection are extended, and the key problems are solved, including the dejign of the objective quantitative and structural selections based on the weight values, the interpolation experiment strategies and technical flows, the result of the test shows that the object interpolation method not only inherits the objects at smaller scales, but also takes the attribute effect into account when deriving objects from larger scales according to the road importance, which is a guarantee to objective selection of the road objects at middle scales.
文摘This essay examines the degree to which Kant＇s understanding of external freedom and right are consistent with and can form a part of his moral philosophy. In doing so, this essay begins by looking at the foundation and possibility of moral experience as it is presented in the Groundwork for the Metaphysics of Morals. This essay then turns to explore Kant＇s understanding of external freedom and right as set out in The Metaphysics of Morals and examines the apparent inconsistencies that exist between these concepts and Kant＇s explication of moral worth. After pointing out the distinction between right and morality, this essay goes on to argue that, strictly speaking, Kant＇s conception of external freedom and right cannot form part of his moral philosophy （as so defined in the Groundwork）. Finally, this essay concludes by arguing that although right and morality are irreconcilable, Kant＇s account of external freedom and right can nevertheless serve as part of his ＂moral＂ philosophy insofar as these concepts represent Kant＇s attempt to externalize the moral law, or simply expand the definition of morality to cover any action that accords with the right.
