def merge_vocab(pair, v_in): v_out = {} bigram = re.escape(' '.join(pair)) p = re.compile(r'(?<!\S)' + bigram + r'(?!\S)') for word in v_in: w_out = p.sub(''.join(pair), word) v_out[w_out] = v_in[word] return v_out def get_tokens(vocab): tokens = ...
本文主要介绍了在自然语言处理(NLP)领域中最重要的编码方式之一——Byte Pair Encoding (BPE)。BPE是一种基于字节对的编码方法,旨在优化数据压缩,特别是在预训练语言模型中。相较于传统的单词级编码方式,BPE在处理大规模语言数据时展现出显著优势。文章首先对BPE的概念和基本思想进行了阐述,然后通过实...
引言 在读RoBERTa的论文时发现其用于一种叫作BPE(Byte Pair Encoding,字节对编码)的子词切分技术。今天就来了解一下这个技术。 一般对于英语这种语言,尽管词语之间已经有了空格分隔符,但是英语的单词往往具有复杂的词形变换,如果只是用空格进行切分,会导致数据稀疏问题
Byte-Pair-Encoding for Tokenization BPE概述 Byte-Pair-Encoding是用于解决未登录词的一种方法。首先简单提一句什么是未登录词,未登录词可以理解为训练语料库中没有出现的,但是在测试语料库中出现的词。我们在处理NLP任务时,通常会根据语料生成一个词典,把语料中词频大于某个阈值的词放入词典中,而低于该阈值的词...
This tokenizer is used by most state-of-the-art NLP models. So let’s get started with knowing first what subword-based tokenizers are and then understanding the Byte-Pair Encoding (BPE) algorithm used by the state-of-the-art NLP models. 🙃...
era, yet, I refer to BPE as a dark horse in this race because it gets lesser attention (pun intended) than it deserves in the success of modern NLP models. In this article, I plan on shedding some more light on the details on how Byte Pair Encoding is implemented and why it works!
Byte pair encoding tokenizer as used in some large language models. tokenizerbyte-pair-encoding UpdatedFeb 25, 2024 Python Text Tokenizer in C++ nlptokenizerlanguage-modelbyte-pair-encodingllm UpdatedJan 10, 2025 Python Decoder-only LLM trained on the Harry Potter books. ...
Minimal, clean code for the (byte-level) Byte Pair Encoding (BPE) algorithm commonly used in LLM tokenization. The BPE algorithm is "byte-level" because it runs on UTF-8 encoded strings. This algorithm was popularized for LLMs by the GPT-2 paper and the associated GPT-2 code release fro...
Alan:大家好!今天,我们将讨论Byte Pair Encoding(BPE)及其变体。对于那些对文本处理和自然语言处理(NLP)感兴趣的人来说,这是一个非常有趣的话题。让我们从理解BPE是什么以及为什么它很重要开始。 Lila:好主意,Alan。BPE是一种数据压缩算法,但也在NLP中广泛使用,用于构建子词词汇表。在我们深入研究之前,最好先了解...
一. BPE简介 通常NLP的分词有两个最简单和直接的思路:1.按照空格分开(在英文里就是按照单词分开),例如‘I have a cat’可以分为['I', 'have', 'a', 'cat']; 2.按字符进行分…