但是由于缺乏能够客观量化的指标，使得心音信号检测在诊断和评估心功能方面仍然只是一种辅助手段。
However, the heart sound detection is still only an accessorial tool to diagnose or evaluate cardiac function, because it lacks objective and quantitative indices.
非线性检测包括构成散点图、计算散点图量化指标(PLO)以及复杂度(COM)、预测度(PRE)、李雅普·诺夫指数(LI)、相关维(cd)等参数。
The parameters derived from the non liner test were index of Poincare graphics (PLO), complexity (com), prediction (pre), index of Lyapounov (li), and correlation dimension (CD).
量化分析了一些主要测试指标，并利用概率树模拟入侵及检测过程。
The specific quantitative analysis about some of the major indices was made, moreover, the process of intrusion and detection was simulated with probability tree.
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