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搜索关键字:probability    ( 261个结果
382. Linked List Random Node 链接列表随机节点
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen.Follow up: Wha... ...
分类:其他好文   时间:2018-01-23 23:26:46    阅读次数:387
理解先验概率和后验概率
理解一下这些基础知识 先验概率(prior probability) 是指根据以往经验和分析得到的概率,如全概率公式,它往往作为 "由因求果" 问题中的 "因" 出现的概率。 在贝叶斯统计中,先验概率分布,即关于某个变量 X 的概率分布,是在获得某些信息或者依据前,对 X 之不确定性所进行的猜测。这 ...
分类:其他好文   时间:2018-01-20 18:54:35    阅读次数:182
[leetcode]Reservoir Sampling-382. Linked List Random Node
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Follow up:Wha ...
分类:其他好文   时间:2018-01-13 20:49:35    阅读次数:188
!688. Knight Probability in Chessboard
#week10 On an NxN chessboard, a knight starts at the r-th row and c-th column and attempts to make exactly K moves. The rows and columns are 0 indexed ...
分类:其他好文   时间:2018-01-13 11:12:03    阅读次数:225
Reservoir Sampling-382. Linked List Random Node
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Follow up:Wha ...
分类:其他好文   时间:2018-01-13 11:09:38    阅读次数:164
数学基础笔记
离散型变量和概率质量函数(probability mass function, PMF)将随机变量能够取得的每个状态映射到随机变量取得该状态的概率 多个变量的概率分布被称为联合概率分布(joint probability distribution) 连续型变量和概率密度函数(probability ...
分类:其他好文   时间:2017-11-08 23:28:59    阅读次数:163
688. Knight Probability in Chessboard
动态规划,二维数组 ...
分类:其他好文   时间:2017-11-05 17:23:31    阅读次数:119
Spark 多项式逻辑回归__多分类
结果: + + + + + + + + +| features|label|indexedLabel| indexedFeatures| rawPrediction| probability|prediction|predictionLabel|+ + + + + + + + +|[4.4,3.2, ...
分类:其他好文   时间:2017-11-05 16:36:28    阅读次数:199
Spark 二项逻辑回归__二分类
结果: + + + + + + + + +|features |label|indexedLabel|indexedFeatures |rawPrediction |probability |prediction|predictionLabel|+ + + + + + + + +|[4.4,2.9, ...
分类:其他好文   时间:2017-11-05 15:57:50    阅读次数:416
382. Linked List Random Node
Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Follow up:Wha ...
分类:其他好文   时间:2017-10-25 21:18:37    阅读次数:142
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