# Swift Algorithms Swift 算法包

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### 软件简介

Swift Algorithms 是 Swift 标准库团队开源的一系列关于序列 (sequence) 和集合 (collection) 类型及相关类型的算法包。

Swift Algorithms 包含各种与序列和集合有关的运算，例如循环集合元素处理、排列组合，以及随机采样等功能。

Package.swift文件中添加以下命令行到依赖中：

.package(url: "https://github.com/apple/swift-algorithms", from: "0.0.1"),

let package = Package(
// name, platforms, products, etc.
dependencies: [
.package(url: "https://github.com/apple/swift-algorithms", from: "0.0.1"),
// other dependencies
],
targets: [
.target(name: "<target>", dependencies: [
.product(name: "Algorithms", package: "swift-algorithms"),
]),
// other targets
]
)

10/09 10:42

## Swift 开源算法包：Swift Algorithms

Swift 标准库团队宣布开源 Swift Algorithms。Swift Algorithms 是一系列关于序列 (sequence) 和集合 (collection) 类型及相关类型的算法包。 根据 Swift 团队的介绍，Swift Algorithms 包含许多强大的通用算法，这些算法在其他流行的编程语言中也很常见，例如 Python itertools 模块以及 C++ 算法库。他们希望这个算法包...

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2019/06/09 21:03

## Proximal Algorithms 4 Algorithms

[TOC] Proximal Algorithms 这一节介绍了一些利用proximal的算法. Proximal minimization 这个相当的简单, 之前也提过，就是一个依赖不动点的迭代方法: 有些时候$\lambda$不是固定的: $$x^{k+1} := \mathbf{prox}{\lambda^k f}(x^k), \sum{k=1}^{\infty}\lambda^k = \infty$$ import numpy as np import matplotlib.p...

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2013/11/25 09:24

## Core algorithms deployed

Algorithms that are the main driver behind a system are, in my opinion, easier to find in non-algorithms courses for the same reason theorems with immediate applications are easier to find in applied mathematics rather than pure mathematics courses. It is rare for a practical problem to have the ...

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2019/05/09 14:36

## 聊聊Election Algorithms

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2019/10/02 17:34

Policy Gradient Algorithms 2019-10-02 17:37:47 This blog is from: https://lilianweng.github.io/lil-log/2018/04/08/policy-gradient-algorithms.html Abstract: In this post, we are going to look deep into policy gradient, why it works, and many new policy gradient algorithms proposed in recent years:...

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2019/04/10 10:10

## Deep Clustering Algorithms

Deep Clustering Algorithms 作者：凯鲁嘎吉 - 博客园 http://www.cnblogs.com/kailugaji/ 本文研究路线：深度自编码器(Deep Autoencoder)->Deep Embedded Clustering(DEC)->Improved Deep Embedded clustering(IDEC)->Deep Convolutional Embedded Clustering(DCEC)->Deep Fuzzy K-means(DFKM)，其中Deep Autoencoder已...

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2018/07/11 20:04

## [Algorithms] The Bayes Rule

Prior odd: The idea is to take the odds for something happening (against it not happening), which we´ll write as prior odds. For example: The chances of rain are 206 in 365. Then the Prior odd = 206:159 Likelihood ratio: However, after opening your eyes and taking a look outside, you notice it’...

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2018/04/11 22:54

## Face Recognition Algorithms

1.OpenCV(EigenFace、FisherFace、LBPH) https://docs.opencv.org/master/db/d3a/facedetect_8cpp-example.html /*This program demonstrates usage of the Cascade classifier class*/ #include "opencv2/objdetect.hpp" #include "opencv2/highgui.hpp" #include "opencv2/imgproc.hpp" #include using namespac...

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2019/06/03 18:38

## Proximal Algorithms 1 介绍

[TOC] Proximal Algorithms 定义 令$f: \mathrm{R}^n \rightarrow \mathrm{R} \cup {+ \infty }$为闭的凸函数，即其上镜图: $$\mathbf{epi} f = { (x, t) \in \mathrm{R}^n \times \mathrm{R}| f(x) \le t}$$ 为非空闭的凸集，定义域： $$\mathbf{dom} f = {x \in \mathrm{R}^n| f(x) < + \infty}$$ 近端算子(是这么...

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2015/07/23 13:02

## 【swift】swift的md5

extension String {          var md5: String! {         let str = self.cStringUsingEncoding(NSUTF8StringEncoding)         let strLen = CC_LONG(self.lengthOfBytesUsingEncoding(NSUTF8StringEncoding))         let digestLen = Int(CC_MD5_DIGEST_LENGTH)   ...

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