作者:凌逆战 地址:https://www.cnblogs.com/LXP-Never/p/12071748.html 题目:带后置滤波的双通道广义旁瓣相消器(GSC)的分析 作者:Israel Cohen, Senior Member, IEEE 摘要 本文分析了非平稳噪声环境下带有后置滤波的双通道广义旁瓣相消器.后置滤波包括:检测 波束形成器的输出和参考信号处的瞬变,比较他们的瞬变功率,估计信号存在概率,估计噪声频谱以及频谱增强,以使他们对数谱的均方误差最小化.基于局部非平稳性的测量方法来检…

Write a function to generate the generalized abbreviations of a word. Example: Given word = "word", return the following list (order does not matter): ["word", "1ord", "w1rd", "wo1d", "wor1", &qu…

前面的文章已经介绍了一个回归和一个分类的例子.在逻辑回归模型中我们假设: 在分类问题中我们假设: 他们都是广义线性模型中的一个例子,在理解广义线性模型之前需要先理解指数分布族. 指数分布族(The Exponential Family) 如果一个分布可以用如下公式表达,那么这个分布就属于指数分布族: 公式中y是随机变量:h(x)称为基础度量值(base measure): η称为分布的自然参数(natural parameter),也称为标准参数(canonical parameter): T(…

原题链接在这里:https://leetcode.com/problems/generalized-abbreviation/ 题目: Write a function to generate the generalized abbreviations of a word. Example: Given word = "word", return the following list (order does not matter): ["word", "1…

1050. String Subtraction (20) Given two strings S1 and S2, S = S1 - S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task is simply to calculate S1 - S2 for any given strings. However, it might not be that…

Write a function to generate the generalized abbreviations of a word. Example:Given word = "word", return the following list (order does not matter): ["word", "1ord", "w1rd", "wo1d", "wor1", &quo…

Generalized Palindromic Number Time Limit: 2 Seconds      Memory Limit: 65536 KB A number that will be the same when it is written forwards or backwards is known as a palindromic number. For example, 1234321 is a palindromic number. We call a number …

作者:桂. 时间:2017-05-22  15:28:43 链接:http://www.cnblogs.com/xingshansi/p/6890048.html 前言 本文主要是线性回归模型,包括: 1)普通最小二乘拟合 2)Ridge回归 3)Lasso回归 4)其他常用Linear Models. 一.普通最小二乘 通常是给定数据X,y,利用参数进行线性拟合,准则为最小误差: 该问题的求解可以借助:梯度下降法/最小二乘法,以最小二乘为例: 基本用法: from sklearn import…

Given a string representing an expression of fraction addition and subtraction, you need to return the calculation result in string format. The final result should be irreducible fraction. If your final result is an integer, say 2, you need to change…

Given a string representing an expression of fraction addition and subtraction, you need to return the calculation result in string format. The final result should be irreducible fraction. If your final result is an integer, say 2, you need to change…