Let's play the minesweeper game (Wikipedia, online game)! You are given a 2D char matrix representing the game board. 'M' represents an unrevealed min ...
分类:
其他好文 时间:
2018-11-08 18:30:03
阅读次数:
114
十岁的小男孩 Define: 如果一个m×n阶矩阵只需要少于m×n个参数来描述,就是一个结构化矩阵(structured matrix)。 优点: 不仅能减少内存消耗,还能通过快速的矩阵-向量乘法和梯度计算显著加快推理和训练的速度。 缺点: 1.结构约束会导致精确度的损失,因为约束可能会给模型带来偏 ...
分类:
其他好文 时间:
2018-11-07 17:44:10
阅读次数:
685
任意门:http://poj.org/problem?id=3233 Matrix Power Series Time Limit: 3000MS Memory Limit: 131072K Total Submissions: 28619 Accepted: 11646 Description G ...
分类:
其他好文 时间:
2018-11-07 00:46:50
阅读次数:
182
线性代数中,乘法是很重要的运算,具体的矩阵乘法原理可以翻教材,或看一下阮大神的这篇文章:http://www.ruanyifeng.com/blog/2015/09/matrix-multiplication.html。 在tensorflow中,经常使用以下几种乘法: ...
分类:
其他好文 时间:
2018-11-06 17:46:36
阅读次数:
162
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. Example: Input: [ ["1","0","1","... ...
分类:
其他好文 时间:
2018-11-06 13:25:38
阅读次数:
170
Given an m x n matrix of positive integers representing the height of each unit cell in a 2D elevation map, compute the volume of water it is able to ... ...
分类:
移动开发 时间:
2018-11-06 11:19:03
阅读次数:
208
Given a n x n matrix where each of the rows and columns are sorted in ascending order, find the kth smallest element in the matrix. Note that it is th... ...
分类:
其他好文 时间:
2018-11-06 11:16:38
阅读次数:
156
Given a 2D matrix matrix, find the sum of the elements inside the rectangle defined by its upper left corner (row1, col1) and lower right corner (row2... ...
分类:
其他好文 时间:
2018-11-06 11:14:08
阅读次数:
130
Given a matrix consists of 0 and 1, find the distance of the nearest 0 for each cell. The distance between two adjacent cells is 1. Example 1: Input: ... ...
分类:
其他好文 时间:
2018-11-06 11:05:29
阅读次数:
119
高斯混合模型 根据EM的定义,我们重新回顾一下高斯混合中的?,µ和Σ参数拟合。为了简单起见,这里我们在M-步中仅更新φ,µj,而把Σj的更新留给大家自己推导。 E-步是很容易的,根据上面的推导,我们计算: w(i)j = Qi(z(i)= j ) = P(z(i)= j |x(i); ?, µ, Σ ...
分类:
其他好文 时间:
2018-11-04 19:41:38
阅读次数:
164