Objective To analyse the results of cockroach density inspecting from 1999 to 2002, and to find out cockroackes sorts, composing and cockroaches distributing and its season growth and decay in Fushun.

目的对1999~2002年蟑螂监测密度结果进行分析，了解抚顺地区蟑螂种类、构成与分布以及季节消长，以便有针对性地对城市蟑螂进行防制。

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Lexical density, processes distributing, average sentence length, formality, mood distribution and violation of Gricean Cooperative Principle are the parameters to be under statistics.

列入统计的变量包括词汇密度、过程分布、平均句子长度、语体分值、语气分布和对合作原则的违反几项。

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A dot density weighted fuzzy C-means algorithm is proposed by using density size of data dot regarded as weighted value and distributing characteristic of datas own.

利用数据点的密度大小作为权值，借助数据本身的分布特性，提出了一种点密度加权模糊c -均值算法。

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