事件概率回归估计 regression estimation of event probability
事件概率的回归估计 regression estimation of event probabilities
概率 [数学] probability; chance◇概率论 probability theory; theory of chances; 概率曲线 probability curve; 概率寿命 life expectance; 概率算法 probabilistic algorithm; 概率统计 probability statistics; 概率统计法 probabilistic method; 概率统计计算法 computational methods of probabilistic statistics
Secondly , the thesis puts forward that conditional probability of attribute to positive example can be used to compare the information which attribute provides so as to construct decision tree and to get classify rules . and a demonstration shows that the algorithm simplifies the decision tree ' s building process efficiently 其次,提出了利用属性对正例的影响度来比较属性对分类提供的信息量,进而选择分类属性构造决策树的条件概率决策树算法,同时实例计算说明该算法有效地简化了决策树的生成过程。
And through leslie matrix analysis , we deduced , except of the subpopulation at altitude 490m , the subpopulations of lilium tsingtauense will not die out if not been disturbed badly . we estimated the growth ability and resistance ability of both metapopulation and local population by use the method of quamitative analysis for population structura1 dynamics . the growth ability order is population l > population 2 > population 3 > population 5 > population 6 > metapopulation > population 4 川叩iqu n了e )复合种群研究摘要从种群年龄结构的稳定、衰退、增长概念出发,以种群结构参数为依据,运用加权法与条件概率乘法法则,定量椎导出衡量种群年龄结构及群落结构的动态指数,该方法克服了过去在植物种群结构动态比较评价中粗放的等级归类划分的缺陷,并能解决结构动态定量比较评价问题,因而认为有普遍使用的价值。
This article gets some good results on the two - order markov chains on the base of the studies of one - order markov chains : in infinite experiment , the frequency of times of stationary state is accessing to transition probability . the indication function which is the times of appearance is a special function , so this paper in forth chapter continue to study more general function regarding to two - order markov chains , which is the property of the function of two - order markov chains . in chapter five , this paper study the convergence of cesaro averages for two - order morkov chains 在大量试验中,固定状态出现次数的相对频率可以用条件概率来加以说明,它是对一重马氏链强极限性质的一个推广;本论文进一步引入了有关二重马氏链更广泛的函数即二重马氏链泛函,并研究了其强极限的性质;最后研究了二重马氏链泛函的平均收敛性。