Qingsong Zhao

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System Portfolio Selection (SPS) problem is equivalent to multi-objective optimization problem, with multifunction requirements incommensurable. In the paper, the SPS problem is re-specified with a more practical formulation, comparing to general portfolio problem. Then, both feasible and non-inferior solution is re-defined considering characteristics of(More)
With the scale and complexity of aerospace projects raising, how to shorten the development time of aerocomponents has become an emergent problem. In this paper, we focus on the technical needs in Complex Product Development Process Planning (CPDPP) for aerospace projects. The difficulties of designing a complex aero-component result not only from masses of(More)
With the increasing number of mobile location services, the ability to answer future queries, based on the current mobile data motion status (reference position and velocity vector), becomes a desirable feature in spatiotemporal databases. A predictive continuous k nearest neighbor (k-CNN) query retrieves the k-nearest neighbors among a mobile date set that(More)
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