Unverified50% confidenceFactExact time
The quantifiers supported by PATTERN are largely aligned with those of regular expressions, including * (zero or more), + (one or more), ? (zero or one), as well as exact occurrence controls such as {n} and {n,m}
1
Sources
50%
Confidence
Long-term
Relevance
9/16/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedEBNF在BNF基础上引入了?（可选）、*（零次或多次）、+（一次或多次）等量词67% similarUnverifiedConditional branching supports AND and OR logical combinations, where AND requires all conditions to be satisfied simultaneously and OR requires only one condition to be satisfied, derived from the rules of Boolean algebra.62% similarUnverifiedOne-hot encoding assigns each word in the vocabulary a unique index, representing it with a vector that has a 1 only at that index position and 0s elsewhere; the dot product of any two different one-hot vectors is always 0 (orthogonal).61% similarUnverifiedCosine similarity has a value range of [-1, 1]; in semantic retrieval, attention is typically focused only on the positively correlated range of 0 to 1, with values closer to 1 indicating greater semantic similarity.61% similarUnverifiedPrefix matching requires that only a contiguous sequence starting from the first token that is completely identical can hit the cache.59% similar
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