基于控制圖的馬田系統(tǒng)馬氏空間生成機(jī)理研究
[Abstract]:The Martian system is a classification technique which uses Markov distance as the measurement scale and selects normal samples to construct the Markov space to diagnose and predict the multivariate system. Markov distance is very sensitive to the variation of sample data, so the quality of normal samples used to construct Markov space directly affects the accuracy of classification. In practical application, the selection of normal samples is mostly based on subjective experience, and lacks objective and normative selection mechanism. In this paper, the generating mechanism of Markov space based on control chart is proposed. First, the initial Markov space is constructed from the normal samples selected by experts. Then the increment of the Markov distance of each normal sample in the initial Markov space and the corresponding reduced Markov space is taken as the new measurement scale, and the single-value control chart is established, and the abnormal data is eliminated by using the stability rule of the control chart. The stable Markov space is obtained. The experimental results show that the proposed method is effective and improves the accuracy of classification.
【作者單位】: 南京理工大學(xué)經(jīng)濟(jì)管理學(xué)院;南京師范大學(xué)泰州學(xué)院;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目(71271114)
【分類號(hào)】:O213.1
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