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    Giuseppe Bonaccorso
    @giuseppebonaccorso
    Welcome to this chatroom for the books Machine Learning Algorithms (First and Second editions) and Mastering Machine Learning algorithms, both published by Packt Publishing.
    The official Github repositories are:
    Antonis
    @antgr81_twitter
    Hi, your new book looks so cool. I will start reading it from 23/6 and later
    Giuseppe Bonaccorso
    @giuseppebonaccorso
    Thanks Antonis!
    Antonis
    @antgr81_twitter
    I started the reading. I need some refreshing about the math of this chapter: It was not very clear to me why it was demonstrated the calculation of A, and how do we calculate V and Ω. The fact that PX is whitened, if X is, is clear. :)
    Antonis
    @antgr81_twitter
    I liked that the Crammer-Rao is included. Again, some math here need some more exploration to crystal clear them in my head. But the big picture is understandable.
    Antonis
    @antgr81_twitter
    Also about empirical risk, I think that instead of argmax we should say argmin, because we want to minimize the cost function.
    Antonis
    @antgr81_twitter
    I liked a lot the link between categorical cross entropy and KL divergence. I didn't know that it is based on that.
    Giuseppe Bonaccorso
    @giuseppebonaccorso
    Thanks Antonis. Unfortunately, in this period, I can't follow the chat very frequently. However, yes, argmax is a typo :)