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Write amplification is a measure of garbage collection efficiency and a key objective to minimize for NAND flash memory based solid state drives. Prior works on analytical modeling of write amplification tend to fall short of the promises to offer more insights than simulations due to their complexity. This paper derives a simple formula to predict write amplification for practical skewed write traffic,...
In this paper, a multiple generalized NARMA-L2 model is proposed for the identification and control of discrete nonlinear systems. It provides a global input-output representation for nonlinear systems by making use of the good local approximation property of NARMA-L2 model without encountering the curse of dimensionality problem. With the identified model, the control problem is then transformed...
The evaluation outcome often has time lags. As a result, the decision makers often make decision with time lags. In order to deal with the problem, a novel evaluation method based on Markov chain was put forward. Make the mark sequence given by experts for each index a Markov chain, the initial distribution and transition probabilities matrix can be computed based upon the statistical analysis of...
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