这些天看了一些关于采样矩阵(大概是这么翻译的)的论文,简单做个总结. FAST MONTE CARLO ALGORITHMS FOR MATRICES I: APPROXIMATING MATRIX MULTIPLICATION 算法如下: 目的是为了毕竟矩阵的乘积AB, 以CR来替代. 其中右上角带有i_t的A表示A的第i_t列,右下角带有i_t的B表示B的第i_t行. 关于 c 的选择,以及误差的估计,请回看论文. 下面是一个小小的测试: 代码: import numpy as np def…

Review: Conditional LMs Note that, in the Encoder part, we reverse the input to the ‘RNN’ and it performs well. And we use the Decoder network(also a RNN), and use the ‘beam search’ algorithm to generate the target statement word by word. The above n…

The Central Limit Theorem (CLT), and the concept of the sampling distribution, are critical for understanding why statistical inference works. There are at least a handful of problems that require you to invoke the Central Limit Theorem on every ASQ…

You are given the number of rows n_rows and number of columns n_cols of a 2D binary matrix where all values are initially 0. Write a function flip which chooses a 0 value uniformly at random, changes it to 1, and then returns the position [row.id, co…

[论文标题]Sparse Probabilistic Matrix Factorization by Laplace Distribution for Collaborative Filtering     (24th-IJCAI ) (Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence (IJCAI 2015) ) [论文作者]Liping Jing, PengWa…

1. 问题 已提供一个Rand7()的API可以随机生成1到7的数字,使用Rand7实现Rand10,Rand10可以随机生成1到10的数字. 2. 思路 简单说: (1)通过(Rand N - 1) % 10 + 1的方法,可以求出Rand10,当N是10的倍数的时候. (2)用( Rand7 - 1 ) * 7 + Rand7可以随机生成1-49,记作Rand49. (3)如果可以通过Rand49计算出Rand40,即随机生成1-40,就可以通过Rand40 % 10来取得Rand10. (…

故事背景 一.大纲 如下,chapter4 是个概览,之后才是具体讲解. 二. 编译过程 Ref: http://www.dsf.unica.it/~fiore/LearningPython.pdf…

目录:Matrix Differential Calculus with Applications in Statistics and Econometrics,3rd_[Magnus2019] Title -16 Contents -14 Preface -6 Part One - Matrices 1 1 Basic properties of vectors and matrices 3 1.1 Introduction 3 1.2 Sets 3 1.3 Matrices: additio…

SamWalker: Social Recommendation with Informative Sampling Strategy Authors: Jiawei Chen, Can Wang, Sheng Zhou, Qihao Shi, Yan Feng, Chun Chen WWW'19 浙江大学 目录 SamWalker: Social Recommendation with Informative Sampling Strategy 0. 总结 1. 研究目标 2. 问题背景 3.…

今天我们要讲的是ng2的路由的第二部分,包括路由嵌套.路由生命周期等知识点. 例子 例子仍然是上节课的例子:…