ECG signal is a weak low frequency non-stationary signal, and possessing random character and noisy setting strong character.
心电信号是一种微弱低频的非平稳信号，具有随机性和噪声背景强等特点。
By experimentation, this model could describe the indefinite and random character of customers' behavior impersonally and also has good segmentation effect.
经试验验证，该模型能够更加客观地描述客户行为的非确定性和随机性特征，具有良好的分类效果。
By experimentation, this model could describe the indefinite and random character of customers' behavior impersonally and also has good segmentation effect.
经试验验证，该模型能够更加客观地描述客户行为的非确定性和随机性特征，具有良好的分类效果。
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