April 2020
Intermediate to advanced
344 pages
8h 22m
Japanese
Content preview from Pythonではじめる教師なし学習 ―機械学習の可能性を広げるラベルなしデータの利用
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Ⅲ部
TensorFlow
と
Keras
を
用いた教師なし学習
これまでに、
scikit-learn
ベースの教師なし学習を見てきた。ここからは、ニューラ
ルネットワークベースの教師なし学習を見ていく。このⅢ部の章では、ニューラルネッ
トワークとそのフレームワークで広く使われている
TensorFlow
と
Keras
を見ていく。
「7 章 オートエンコーダ」では、オートエンコーダを使う。オートエンコーダは浅
いニューラルネットワークで、自動的に特徴量エンジニアリングと特徴量選択を行う。
さらに進んで「8 章 オートエンコーダハンズオン」では、オートエンコーダを実世界
の問題に適用する。「9 章 半教師あり学習」では、教師なし学習問題を、わずかに得
られたラベルを活用することで半教師あり学習問題に置き換えて適合率や再現率を向
上させる方法を見ていく。
このⅢ部で浅いニューラルネットワークを学んだら、本書の最後のⅣ部でディープ
なニューラルネットワークを学ぼう。
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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.