It can be used as a site extractor, picture ripper or media downloader. 该软件可以作为一个网站内容提取器，图片抓取器或者媒体资源下载器使用。
A feature extractor using linear transformation matrix is further employed to extract the classification-oriented features. 一个使用线性转换矩阵的特征提取器对分类导向的特征做进一步的提取。
