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Information Theory: I forget which publishing house it was. It is a very thin book and it is very good. There is a good talk about the measurement of information, the understanding of entropy and the Markov process (there is no such thing in the company now, I'll go back and find it and make it up). Mastering this knowledge, it is good for you to understand the cross entropy and relative entropy, which look similar but easy to confuse. At least you know why many machine learning algorithms like to use cross entropy as cost function ~1997年，高三班花董啾啾（张含韵饰）外表是懂事乖乖女，内心却叛逆乖张。她的好姐妹韩霞非常喜欢时装设计，平日里心直口快、敢做敢为，却因为魁梧的身材、平凡的外表和爷们儿的性格经常受到周围男生的嘲笑。忧郁校草夏静寒（冉旭饰）、校霸罗凡（代旭饰），以及吃货胖子小强（张政饰）、运动少年大伟（李现饰）是全校公认的损友拍档。面对即将来临的高考，他们各自憧憬着未来的人生。啾啾的父亲在她十八岁生日那天突然离世，但留给她的生日礼物成了她永久的精神寄托。静寒为人仗义，由于幼年父母离异，他与奶奶相依为命。罗凡是静寒最好的哥们儿，他们互相欣赏对方身上的侠义气质，但靜寒和啾啾的恋爱却造成了兄弟间反目。长相平凡的韩霞一直生活在好姐妹啾啾的阴影中，平时老师和同学对她和啾啾态度的巨大反差，造成了她们友情的巨大危机Chu can also see clearly that the reason is that there are too many of them. Let's describe them this way-it looks like a dark cloud rising out of thin air in the rainforest. "Zhang Xiaobo said.Serbia: 650,0001945年4月中旬，吴家村的平静忽然被打破了。村里开始不断出现诡异之事：村民吴振堂家蒸好的一桶米饭莫名其妙地不见了；村民竹竿家的衣服和长老吴茂吉家的腊肉也不翼而飞；更有村民铜罐子家的狗被人杀死在村路上；接着，吴振堂在河里发现了外出村民的尸体……这一系列怪事让淳朴的村民感到疑惑和恐惧。……一个读者为一本网络小说花费了四十多万这个消息很快便扩散到网络上，顿时引起了一波热议。