Besides, the search steps in probabilistic CYK algorithm is reduced and the probabilistic CYK algorithm is improved by rearranging grammar rules of SCNF and establishing the index table.

此外通过重排scnf语法规则和建立索引表对概率CYK算法进行改进，减少中间搜索步骤所需的时间以提高效率。

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And, despite their reduced numbers, grammar schools still provide academic success out of all proportion to the number of students they educate.

ECONOMIST: Grammar schools: Passing the test | The