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In the last few decades, the performance analysis of multi-server has become a research hotspot. We consider a distributed server system in which heterogeneous servers operating under the processor sharing(PS) discipline. In this system, when a stream of users' requests arrive at a dispatcher, it will dispatch each user to different servers respectively. In this paper, we analyze the performance of...
In this paper, we address the problem of learning object class models from weakly labeled training images, where labels of object classes are only provided at image level. Such weakly supervised object learning can be considered as a Multiple Instance Learning (MIL) problem. We observed that object instances of a common category are visually similar and when characterized as high-dimensional feature...
An analytic magnetic field calculation method based on scalar magnetic potential of tubular reference frame with Schwarz-Christoffel Transform is introduced, which is a new research method to work on the axial magnetized tubular permanent magnet linear synchronous motor. Due to this method, an elaborate academic analysis to magnetic field distribution of slotless motor is conducted; the computational...
Absorbing exchange rate as exogenous disturbance, a mixed GARCH-jump model is proposed to compare return series fluctuation of Shanghai composite index with that of Dow Johns Index. It also incorporates properties of asymmetry, clustering, leptokurtosis and fat-tail of index series fluctuation into an integrated analytic frame of so-called diffusion-jump. Fitness test of GARCH-jump model proves that...
In order to measure the open-ended fund's liquidity risk accurately, the method of non-liquidity and VaR are used in this paper. We measure the liquidity risk of open-ended fund with non-liquidity indicators, fitting these non-liquidity indicators of sample funds with GARCH model under normal distribution, t-distribution and generalized error distribution (GED), then put the fitting parameters into...
In this paper, a modeling method for the data analysis solution is presented and the enterprise level of the data warehousing problem is introduced. The method includes the processes of the requirement elicitation, analysis stage and the initial design of the data warehouse. The extended operation model which can satisfy the need of the data warehouse is also presented in this paper because that it...
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