Which of the following is the best definition of a token in an
information retrieval system?
- A movie or show recommendation generated by Netflix’s machine learning algorithm
- An algorithm that ranks documents
- A users query
- An entry in the index that represents a document characteristic
An entry in the index that represents a document characteristic
A token is an instance of a sequence of characters
Tokens are sequences of alphanumeric characters separated by nonalphanumeric characters. The tokens are case normalized by converting uppercase letters to lowercase
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