May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
Become 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,
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.
114
関連用語
用語に関連する話
用語の使用例
しきい 値
判断 する基 準
与 えられ たデータを 分 類 するときに 使 わ れる境 界となる値 をしきい 値と言 い 、「 閾 値 」と書く
こともある。例えば、0 か 1 のどちらかに分ける場合、0.3 のデータなら 0 に、0.8 のデー
タ な ら 1 にしようと 考 えると、 判 断 の 基 準 とし て 0 . 5 な ど の 中 間 の 値 をしき い 値 とし て 使う。
監視サービスなどの場合、しきい値を超えるとアラートを出す場合もある。
「 通 信 量 で アラートを 上 げようと思うけど、しきい 値 はどうしよう？」
データと合 わ せて判 断 する
しきい値は、実際に発生したデー
タを見て判断する必要がある。こ
のため、日々観測したデータから
しきい値を動的に変更すること
もある。
しきい値設定の難しさ
しきい値を超えた場合にアラー
トを出す場合、条件によっては大
量のアラートが出て対応が大変
になる一方で、アラートが出ない
と監視の意味がない。
機械学習におけるしきい値
機械学習などを開発するときも、
しきい値の設定は重要で、その値
を変えることで結果が大きく変
わる。このしきい値のチューニン
グが成否を握ることもある。
Keyword
096
▶
しきい ち
シミュレ ー ション
……P116
パ ケットフィル タリン グ
……P209
Become 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,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.