核心概念
확률적 유한 상태 자동기계(PFA)를 사용하여 유한 문자열의 새로운 복잡도 척도를 소개하고 그 특성을 탐구한다.
統計
AP(w) ≤ AN(w) + 1
AP(w) ≤ AP,δ(w) ≤ AD(w)
AP(injm), AP(injmi), AP(in(ji)m), AP(inj(ij)m) = 2 for all n, m ≥ 0
引用
"PFA complexity AP(w) is the least number of states of a PFA for which w is the most likely string of its length to be accepted."
"The probabilistic automatic complexity of w with gap δ ∈ [0, 1) is AP,δ(w) = min{ k : there is a k-state PFA M such that gapM(w) > δ }."