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python实现马耳可夫链算法

  • 作者: 别停下脚步幸福
  • 来源: 51数据库
  • 2022-08-12
import random
import sys

MAXGEN = 10000
NONWORD = '\n'
w1 = w2 = NONWORD

statetab = {}
text = sys.stdin.read()
words = text.split()
for word in words:
    statetab.setdefault((w1, w2),[]).append(word)
    w1, w2 = w2, word

# add tail
statetab.setdefault((w1, w2),[]).append(NONWORD)

# show mar words
w1 = w2 = NONWORD
for i in xrange(MAXGEN):
    suf = statetab[(w1,w2)]
    t = random.choice(suf)
    if t == NONWORD:
    break
    print t
    w1, w2 = w2, t

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