Face recognition based on rough set and neural network was proposed for the shortcoming of high dimension of PCA face recognition and low recognition rate for non-training samples.

基于粗糙集和神经网络的人脸识别方法是针对PC A方法中存在的高维数问题和它对未训练过的样本识别率低的缺点而提出的。

youdao

Arranged around main roads around and leading to Olympic and Paralympic venues, training centers, and non-competition sites, a total of 1, 366 signs will be set up before the start of the Games.

标识分别设置在奥运会及残奥会所涉及的主要城市道路上和场馆安保封闭区周边，用于指示到达奥运会及残奥会各比赛场馆、训练场馆和非竞赛场馆的方向、地点、距离，以及指引不同客户群车辆行驶路线和专用停车场。

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But in my experience, ditching all your non-running activities - whether it be yoga, circuit training or mountain biking - comes at a cost.

但根据我的经验，抛开你所有的非跑步活动(无论是做瑜伽、环行自行车训练和山地自行车)是付出的一大代价。

youdao

Ashton said the Barkley injury, a strained hip flexor, was just another piece of bad luck for the team, coming after the injury that ruled Dave Strettle out of the tournament altogether, and Wilkinson out of the first two games - all three of them non-contact training incidents.

BBC: England face crisis at fly-half

The Ministry of Defence has joined the effort by placing a ban on all non-essential military training.

CNN: Outbreak sparks UK meat shortage fears

In the early 1990s, Dr Sen and his wife, Ilina, set up Rupantar, a non-governmental organisation training rural health workers, running mobile clinics and campaigns against alcohol abuse and violence against women.

BBC: Dr Binayak Sen: Tribal doctor