在线词典
在线词典,是一款在线使用的中英文查词词典。本工具支持查询英文和中文单词及词组的含义,查询效率高、结果丰富,包括单词变体、常用短语、英英释义、同义词、同根词、词语辨析等,是外语学习者必备的在线查词工具。
输入要查询的单词:
Sufficient statistic
美:
[səˈfɪʃnt stəˈtɪstɪk]
查词链接:https://www.dute.org/dict/sufficient_statistic
复制链接 充分统计量:在统计学中,充分统计量是一个概念,表示从样本中提取的关于未知参数的所有信息。如果一个统计量是充分的,那么它包含了关于参数的所有信息,不需要再考虑其他统计量。
查看英英释义
abstract:
In statistics, a sufficient statistic is a statistic which has the property of sufficiency with respect to a statistical model and its associated unknown parameter, meaning that "no other statistic which can be calculated from the same sample provides any additional information as to the value of the parameter". A statistic is sufficient for a family of probability distributions if the sample from which it is calculated gives no additional information than does the statistic, as to which of those probability distributions is that of the population from which the sample was taken.
网络释义
充分统计量
代码里涉及到一个概念:sufficient statistics(充分统计量),用结构体lda_suffstats存储,里面有一个k*V的二维数组class_word,不知道跟lda_model结构里的log_prob_w(也是k*V的二维数组)是...
充足统计量
相比较业绩常常被当作“充足统计量”(sufficient statistic),采用相比较业绩作为考察指标,主要目的在于剔除社会系统因素的影响。
称为充分统计量
知道a,就已掌握全部资讯[a称为充分统计量(sufficient statistic)]。给定信心水准,并利用n及a,可得一信赖区间,但作法并不唯一。
充实计数量
... density function疏密程度函数 sufficient statistic充实计数量 S-curve S形曲线 ...
常用短语
更多常用短语正在查询...
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