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(intro whooshing)

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(smiley snapping)

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(words whooshing)

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- In the next few videos,

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we'll take a look at the tokenizers.

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In natural language processing,

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most of the data that we
handle consists of raw text.

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However, machine learning models

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cannot read or understand
text in its raw form,

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they can only work with numbers.

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So the tokenizer's objective

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will be to translate
the text into numbers.

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There are several possible
approaches to this conversion,

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and the objective

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is to find the most
meaningful representation.

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We'll take a look at three
distinct tokenization algorithms.

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We compare them one to one,

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so we recommend you take
a look at the videos

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in the following order.

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First, "Word-based,"

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followed by "Character-based,"

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and finally, "Subword-based."

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(outro whooshing)