Lecture 2. Tokenization and word counts

How many words?

"The rain in Spain stays mainly in the plain." 9 tokens: The, rain, in, Spain, stays, mainly, in, the, plain 7 (or 8) types: T = the rain, in, Spain, stays, mainly, plain

Type and token

Type is an element of the vocabulary.

Token is an instance of that type in the text.

N = number of tokens;

V - vocabulary (i.e. all types);

|V| = size of vocabulary (i.e. number of types).

How are N and |V| related?