August 2014
Intermediate to advanced
328 pages
10h 7m
Polish
Content preview from Nowe usługi 2.0. Przewodnik po analizie zbiorów danychBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Rozdział 10. Znajdowanie niezależnych właściwości
W większości dotychczasowych rozdziałów skupiono się przede wszystkim na klasyfikatorach nadzorowanych, z wyjątkiem Rozdział 3., w którym była mowa o technikach nienadzorowanych określanych mianem grupowania. W tym rozdziale przyjrzymy się sposobom wyodrębniania ważnych właściwości podstawowych ze zbiorów danych, które nie są opatrzone konkretnymi wynikami. Podobnie jak w przypadku grupowania, metody te nie dążą do tworzenia przewidywań w takim stopniu, w jakim próbują scharakteryzować dane i przekazać interesujące informacje o nich.
W Rozdział 3. wspomniano, że grupowanie przypisuje każdy wiersz w zbiorze danych do grupy lub punktu w hierarchii. Każdy element pasuje dokładnie do jednej grupy, która ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.