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Lexical analysis

Computing process of parsing a sequence of characters into a sequence of tokens

Nº Q835922 ★★

Uncommon · Knowledge

Lexical analysis

Computing process of parsing a sequence of characters into a sequence of tokens

Lexical tokenization is conversion of a text into (semantically or syntactically) meaningful lexical tokens belonging to categories defined by a "lexer" program. In case of a natural language, those categories include nouns, verbs, adjectives, punctuations etc. In case of a programming language, the categories include identifiers, operators, grouping symbols, data types and language keywords.

Last price

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Floor price

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7-day median

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30-day sales

0

30-day range

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In circulation

0

Price history

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Datemedian LowHighsales

Sales history

Last sale
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30-day average
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30-day low
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30-day high
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Sales 7d
0
Sales 30d
0

No sales yet.

Anonymous sales: no buyer or seller shown. Figures count player-to-player sales only.

From Wikipedia

Lexical tokenization is conversion of a text into (semantically or syntactically) meaningful lexical tokens belonging to categories defined by a "lexer" program. In case of a natural language, those categories include nouns, verbs, adjectives, punctuations etc. In case of a programming language, the categories include identifiers, operators, grouping symbols, data types and language keywords. Lexical tokenization is related to the type of tokenization used in large language models (LLMs) but with two differences. First, lexical tokenization is usually based on a lexical grammar, whereas LLM tokenizers are usually probability-based. Second, LLM tokenizers perform a second step that converts the tokens into numerical values.

Text: Wikipédia, CC BY-SA 4.0. ·

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