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Since the observables at particular time instants in a temporal sequence exhibit dependencies, they are not independent samples. Thus, it is not plausible to apply i.i.d. assumption-based dimensionality reduction methods to sequence data. This paper presents a novel supervised dimensionality reduction approach for sequence data, called Linear Sequence Discriminant Analysis (LSDA). It learns a linear...
The price fluctuation in the stock market is often accompanied by risks, the spread of which affects the entire financial system and even the stable operation of the social economy as a whole. Considering the relatively mature research for the network characteristics of the stock market, this paper attempts to employ the complex networks analysis method to study the risk of the stock market. We firstly...
War-fighting simulation becomes an efficient method to assess war-fighting efficiency and verify war-fighting theory. In this paper, a novel missile war-fighting scheme optimization method is proposed based on ordinal optimization theory. This new method sets up the crude evaluation model and verifies the efficiency of the model. Simulation results demonstrate that the proposed method can achieve...
A system optimization framework based on design of experiment (DOE) and simulation is proposed. Simulation is effective in the optimization of many complex systems, however, it is time consuming and tough. DOE can reduce the number of test cases drastically while ensuring input combination is of wise coverage of design space. A framework incorporating simulation and DOE is proposed, which provides...
The quantitative evaluation of system-of-systems architecture is a very important content in the research area of system-of-systems. The framework of system-of-systems analysis process and method of system-of-systems architecture description are reviewed. A new approach of system-of-systems architecture evaluation is proposed. The proposed evaluation approach is a bi-level approach. In the higher...
To study the material support system, build a simulate system is an efficient way. The complicity of the material support system is analyzed, the similarities and differences of the mission for materials, transport system, and support stations to carry out is proposed; then an element mission model for general use is constructed, based on which the multi-level mission model is set up and expressed;...
Emergent behavior is a core trait of SoSs. But the emergence cannot be predicted before its appearance. We propose a method which using Semi-autonomous Agent based simulation to detect the emergent behaviors of SoSs. Agent based Modeling and Simulation are available for the observation of emergent behaviors of SoSs. We propose the multi-agent based simulation methods to demonstrate the evolution of...
The configuration of support resources is a main factor affecting warship mission reliability. Seeking the balance between support resources and mission reliability to sustain the demands of missions is one of the targets of material support studies. This paper proposes a discrete-event simulation model written in ExtendSim and employs an enhanced evolutionary algorithm for optimizing support resources...
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