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上世纪二十至四十年代的中国，那是一个民气十足、海阔天空的时代，一群年轻人经历了一段放任自流的时光，自由地追求梦想与爱情，有人在流离中刻骨求爱，有人在抗争中企盼家国未来……萧红，一个特立独行的女子，一路流亡，从北方到南方，从哈尔滨到香港，一边躲避战乱，一边经历着令人唏嘘又痛彻心扉的爱情与人生。对生的坚强对死的挣扎在她笔下穿透纸背，她的人生亦是如此。范文轲道：齐国之败是迟早的事情，大难临头各自飞，我们这也是迫不得已啊。不过不成气候，不过是些逃亡之徒，项羽也没放在心上。最后还是一个网友一语道破玄机，这才让大家豁然开朗。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 ~