August 2019
Intermediate to advanced
608 pages
7h 46m
Japanese
Content preview from 詳説 Deep Learning ―実務者のためのアプローチ
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9章Spark上でDL4Jを用いて機械学習を行う
10年の間旅を続け、夜のステージに立ってきた
俺の青春はあっと言う間に過ぎ去った
誰かもう一度教えてくれ、俺にもわかるように
ハンクは本当にこうしてきたのか？
あのハンク爺さんが本当にこうしてたのか？
—— Waylon Jennings, 『Are You Sure Hank Done It This Way』
9.1 DL4JをSparkやHadoopと併用する
ここ数年の間に現れたデータセンター向け技術で、キーとなるのがApache HadoopとApache Sparkです。特に、Hadoopはデータウェアハウスの成長と進化において中心的な役割を果たしています。SparkはMapReduceの後継として、Hadoop上で並列反復アルゴリズムを実行するフレームワークの主流になりました。
DL4JはSpark上でのネットワークの訓練をスケールアウトできます。Spark上でDL4Jを実行すると、ネットワークの訓練にかかる時間を大幅に短縮できます。また、入力のデータが増えたときの訓練時間の増加を軽減できます。
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クラウドへ AWS（Amazon Web Services）やGoogle Cloud、Microsoft Azureなどのプラットフォームを利用すると、オンデマンドでSparkのクラスターをセットアップできます。費用はわずか数ドルです。DL4Jはパブリックなクラウドインフラストラクチャーのほとんどで実行できるので、ディープラーニングのワークフローをどこでどのように実行するか柔軟に選択できます。 ... |
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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.