November 2017
Intermediate to advanced
328 pages
6h 51m
Japanese
Content preview from 入門 PySpark ―PythonとJupyterで活用するSpark 2エコシステム
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160
8
章
TensorFrames
8.2
TensorFlow
とは何か
TensorFlow は、データフローグラフを用いた数値演算のための Googleによるオープンソースソフト
ウェアライブラリであり、ディープラーニングに焦点を当てた機械学習のオープンソースライブラリで
す。TensorFlowは、大まかにはニューラルネットワークを基盤としており、GoogleのBrainチームの
研究者やエンジニアがディープラーニングをGoogle のプロダクトに適用し、検索、フォト、スピーチを
含む（ただしこれらだけではありません）さまざまなGoogleのチームのためにプロダクションモデルを
構築してきた成果の到達点です。
TensorFlowはPythonのC++インターフェイス上に構築されており、短期間の間に最も広く使われ
ているディープラーニングのプロジェクトの 1つになりました。次のスクリーンショットは、人気のある
ディープラーニングライブラリの Googleトレンドでの比較です。2015 年の11 月8日から14日（これは
TensorFlowが公表された時期です）にかけてスパイクがあり、その後の1年間で急速なのびを見せて
いることに注意してください（このスナップショットは 2016 年12 月のものです）。
TensorFlowの人気は https://www.theverge.com/2016/4/13/11420144/google-machine-learning-
tensorflow-upgrade ...
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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.