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Gray-brown: eggplant, water caltrop* …小提琴天才乔海洋以满腔热忱投身兵团建设。初恋爱人叶晓帆误中别人圈套而被迫离开海洋。痛苦如雪上加霜，海洋意外受伤双手致残永远不能拉琴，艺术生命被迫中断……师傅老车和善良女孩樱桃以温暖的感情抚慰困境中的海洋。能干真诚的同学郑红梅始终在乔海洋身后执著扶持。老车为给战士洗澡拉冰不慎遇难，樱桃为了救孩子遭遇车祸。痛失亲友的海洋深受震撼，发誓要以自己的行动来回报这片黑土地。海洋毅然放弃上大学的机会，留在北大荒。机缘巧合，他进入经营惨淡的县文工团，面对全团老少的生计困难，海洋费尽心血力挽狂澜。海洋和郑红梅凭着自己的才干和热情，经历种种磨难，终于把文工团领出困境步入正轨。海洋以深切感情写出大型歌剧《北大荒之歌》，终于实现了艺术理想。海洋和红梅的感情也在岁月的风雨中越走越近……From the defender's point of view, this type of attack has proved (so far) to be very problematic, because we do not have effective methods to defend against this type of attack. Fundamentally speaking, we do not have an effective way for DNN to produce good output for all inputs. It is very difficult for them to do so, because DNN performs nonlinear/nonconvex optimization in a very large space, and we have not taught them to learn generalized high-level representations. You can read Ian and Nicolas's in-depth articles (http://www.cleverhans.io/security/privacy/ml/2017/02/15/why-attaching-machine-learning-is-easier-than-defending-it.html) to learn more about this.