tokensometimes
Tokensometimes is a term used in computational linguistics and natural language processing to describe a token that appears irregularly within a corpus or across time. Unlike stable high-frequency tokens, tokensometimes shows sporadic presence, often tied to domain shifts, topic drift, or data collection artifacts.
Origin and usage: The coinage blends token, referring to basic units of text such as words or
In practice: Tokensometimes affects tokenization, vocabulary maintenance, and embedding learned representations. Frequency analysis, drift detection, and
Handling: Approaches include subword models (such as BPE or SentencePiece), byte-level tokenization, dynamic or adaptive vocabularies,
Examples: Terms that arise briefly in a topic-specific corpus, brand names that appear only in certain contexts,
See also: tokenization, vocabulary drift, concept drift, domain adaptation, subword modeling.