February 2025
Intermediate
376 pages
9h 25m
Japanese
Content preview from 仕組みからわかる大規模言語モデル 生成AI時代のソフトウェア開発入門
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ンを一意な数値（トークンID）に変換します。このトークン IDの列が、Transformerの入力と
して使用されます。一方、TransformerはトークンID の列を入力として受け取り、次のトー
クンID を予測します。予測したトークンID は次の入力として再帰的に利用されます。これを
繰り返すことで、より長い文章やテキストを生成することができます。
図1.2.1
トークナイザによるトークン化
図1.2.2 にトークナイザによるトークン化の様子を示します。例えば、「昔々あるところに
お爺さんと」という文章が入力された場合、トークナイザは次のようにトークン化します。
128000, 12345, 6789, 23456, 7890, 34567, 8901, 5678
ここで、各トークンID とトークンの対応は次のとおりとします。
128000: <|begin_of_text|>
12345: 昔
6789: 々
23456: ある
7890: ところ
34567: に
8901: お爺さん
5678: と
<|begin_of_text|>
は文章の始まりを表す特殊トークンです。トークナイザは特殊トークン
を自動的に挿入します。
026
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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.