May 2025
Intermediate to advanced
382 pages
10h 33m
Chinese
Content preview from 图解大模型 : 生成式AI 原理与实战
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302
｜
第
11
章
for word_idx in word_ids
:
# 新单词的开始
if word_idx != previous_word_idx
:
previous_word_idx = word_idx
updated_label = -100 if word_idx is None else label
[
word_idx
]
label_ids.append
(
updated_label
)
# 将特殊词元标记为-100
elif word_idx is None
:
label_ids.append
(
-100
)
# 如果标签是B-XXX，我们将其改为I-XXX
else
:
updated_label = label
[
word_idx
]
if
updated_label % 2 == 1:
updated_label += 1
label_ids.append
(
updated_label
)
updated_labels.append
(
label_ids
)
token_ids
[
"labels"
]
= updated_labels
return token_ids
tokenized = dataset.map
(
align_labels
,
batched=True
)
通过观察示例可以发现，我们在
[
CLS]
和
[
SEP
]
词元中额外添加了特殊标签（
-
100
）。
# 原始标签和更新后标签的区别
print
(f
"Original: {example
[
"ner_tags"
]
}"
)
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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.