常見例句雙語例句An automatic seal identification scheme is proposed, which uses the adaptive feature extraction and support vector machine.文章提出了一種基于自適應特征提取和支撐向量機的印鑒自動識別方法。Wavelet packet decomposition and feature parameter vector extraction method based on wavelet packet energy were applied to feature parameter vector extraction of pipeline working state.將小波包分解提取壓力信號的特征向量法應用到長輸油管道狀態(tài)檢測中，直接利用各頻段成分特征向量的變化提取泄漏與調泵壓降信息。Wavelet packet decomposition was studied and feature parameter vector extraction method based on wavelet packet energy was applied to feature parameter vector extraction of the gear working state.通過對小波包分解的分析研究，將基于小波包能量的小波包分解特征提取方法用于提取齒輪運行狀態(tài)的特征向量； 返回 feature vector extraction