July 2014
Beginner to intermediate
456 pages
11h 26m
Japanese
Content preview from 戦略的データサイエンス入門 ―ビジネスに活かすコンセプトとテクニック
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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.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.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.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.
270
9 章 エビデンスと確率
9.5
例：
Facebook
の「いいね！」から求める
エビデンスのリフト値
現実のデータから求められるエビデンスのリフト値について検討してみましょう。例を少
し新鮮にするために、登場したばかりの分野での応用例について考えてみることにしましょ
う。研究者であるミハル・コジンスキー、デイビッド・スティルウェル、トレ・グラエペ
ルらは、最近ある論文［
Kosinski et al., 2013
］を「
Proceedings of the National Academy of
Sciences
」に発表し、驚くべき結果を示しました。
Facebook
で何を「いいね！」している
か
†
で、普通外見からはわからない、あらゆる種類の個人の特徴をある程度予測できるとい
うのです。予測できる特徴には、次のようなものが挙げられています。
•
知能テストの点数はどの程度か。
•
心理テストの点数はどの程度か（例えば、どれくらい外交的だったり、誠実であるかな
ど）
•
（公表している）同性愛者であるかどうか。
•
飲酒や喫煙をするかどうか。
•
宗教的、政治的な見解
•
など、その他多数
彼らの実験計画について理解するには、この論文を読んでみることをお勧めします。この
本をここまで読んでいただいたのであれば、ほとんどの結果を理解できるでしょう（例え
ば、
2
値で表されるたくさんの個人の特徴をどの程度うまく予測できたかを評価するために、
彼らは
ROC
曲線の下の面積を報告しています。今では、この内容をきちんと解釈できるこ ...
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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.