Based on the fact of generating the synthetic data using poisson distribution function and exponential distribution function , the performance of hy algorithm and the comparison among hy algorithm , apriori algorithm and dhp algorithm is experimented . these experiments include the one that compares the execution time using variant synthetic data and variant minimum supports , and the scale - up one that compares the execution time using variant transaction number and variant item number in synthetic data . finally the results of the experiments are analysed 在构造基于泊松分布函数和指数分布函数的合西南交通大学硕士研究生学位论文第iii页成数据的基础上,对hy算法的性能及其与apriori算法和dhp算法的比较进行了实验,这些实验包括针对不同的合成数据和不同的最小支持度,对各算法的执行时间进行比较的实验以及针对合成数据的不同的事务数和不同的项数对各算法的执行时间进行比较的规模实验,并对实验结果进行了分析,反映出hy算法具有良好的性能。
指数: index number; index分布: distribute; spread; scatter; ...函数: function分子数分布函数: number distribution function指数函数分布: exponential distribution点分布函数: point spread function对分布函数: pair distribution function分布函数: cumulative distribution function; distributed function; distributive function; joint distribution function; probability distribution function分布函数类: class of distribution function谱分布函数: spectral distribution function维分布函数: dimensional distribution function线分布函数: line spread function源分布函数: source distribution function主分布函数: principal distribution function超指数分布: hyper exponential distribution; hyperexponential distribution负指数分布: negative exponential distribution双指数分布: double exponential distribution指数分布: exponent distribution; exponential dist ribution; exponential distributon; exponentialdistributon; exponentialverteilung exponential distribution指数分布族: exponential family of distributions指数分布;指数分配: exponential distribution边缘分布函数: marginal distribution function不变分布函数: invariant distribution function多元分布函数: multivariate distribution function二维分布函数: bivariate distribution function二元分布函数: bivariate distribution function