w Learning PHP Design Patterns Much of what passes as OOP misuses getters and setters, and making accesspublic to them only breaks encapsulation.…

Learning PHP Design Patterns CHAPTER 1 Algorithms handle speed of operations, and design patterns handle speed of development. 算法处理程序运行速度,设计模式处理程序开发速度.…

AMD - Learning JavaScript Design Patterns [Book] - O'Reilly The overall goal for the Asynchronous Module Definition (AMD) format is to provide a solution for modular JavaScript that developers can use today. It was born out of Dojo’s real world exper…

The Observer Pattern The Observer is a design pattern where an object (known as a subject) maintains a list of objects depending on it (observers), automatically notifying them of any changes to state. When a subject needs to notify observers about s…

The Module Pattern Modules Modules are an integral piece of any robust application's architecture and typically help in keeping the units of code for a project both cleanly separated and organized. In JavaScript, there are several options for impleme…

The Singleton Pattern The Singleton pattern is thus known because it restricts instantiation of a class to a single object. Classically, the Singleton pattern can be implemented by creating a class with a method that creates a new instance of the cla…

可以慢慢理解.. 对照JAVA class Singleton(object): def __new__(cls): if not hasattr(cls, 'instance'): cls.instance = super(Singleton, cls).__new__(cls) return cls.instance s = Singleton() print("Object created", s, id(s)) s1 = Singleton() print("Obje…

In classical object-oriented programming languages, a constructor is a special method used to initialize a newly created object once memory has been allocated for it. In JavaScript, as almost everything is an object, we're most often interested in ob…

Introduction Me and my wife had some interesting conversations on Object Oriented Design principles. After publishing the conversation on CodeProject, I got some good responses from the community and that really inspired me. So, I am happy to share o…

原文链接:http://www.c-sharpcorner.com/UploadFile/19b1bd/design-patterns-simplified-part3-factory/ Design Patterns Simplified - Part 3 (Simple Factory)[设计模式简述--第三部分(简单工厂)] This article explains why and how to use the Simple Factory Design Pattern in softw…

原文链接: http://www.c-sharpcorner.com/UploadFile/19b1bd/design-patterns-simplified-part-2-singleton/ Design Patterns Simplified - Part 2 (Singleton)[设计模式简述--第二部分(单例模式)]       I am here to continue the explanation of Design Patterns. Today we will explai…

7 Machine Learning System Design Content 7 Machine Learning System Design 7.1 Prioritizing What to Work On 7.2 Error Analysis 7.3 Error Metrics for Skewed Classed 7.3.1 Precision/Recall 7.3.2 Trading off precision and recall: F1 Score 7.4 Data for ma…

From Head First Design Patterns. Design Principle: Idnetify the aspects of your application that vary and separate them from what stays the same. Here's another way to think about it: Take the parts that vary and encapsulate them, so that later you c…

Apex allows you to build just about any custom solution on the Force.com platform. But what are the common design patterns and associated best practices for Apex development, and how can you leverage these patterns and best practices to avoid reinven…

设计模式是一套被反复使用.多数人知晓的.经过分类编目的.代码设计经验的总结,使用设计模式的目的是提高代码的可重用性,让代码更容易被他人理解,并保证代码可靠性.它是代码编制真正实现工程化. 四个关键元素:(1) Pattern Name, (2) Problem, (3) Solution, (4) Consequences. 01. Factory Method Pattern /* The product should be created by his own factory. */ Log…

When you're on the way which is unknown and dangerous, just follow your mind and steer the boat. 软件模式: 设计模式.体系结构模式.分析模式.过程模式等. 体系结构模式 ANSIIEEEStd1471一200对体系结构的定义:一个系统的基本组织,表现为系统的组件.组件之间的相互关系.组件和环境之间的相互关系以及设计和进化的原则. 黑板模式 黑板模式是一种常用的架构模式,应用中的多种不同数据处理逻辑相…

It's time to review design patterns, especially when I reach the turning-point of my career. That's not a small test, but a challenge to my life. Hold it! http://blog.csdn.net/lovelion/article/details/17517213 View and Diagram 用户视图:Use Case Diagram /…

设计模式(Design Patterns) ——可复用面向对象软件的基础 设计模式(Design pattern)是一套被反复使用.多数人知晓的.经过分类编目的.代码设计经验的总结.使用设计模式是为了可重用代码.让代码更容易被他人理解.保证代码可靠性. 毫无疑问,设计模式于己于他人于系统都是多赢的,设计模式使代码编制真正工程化,设计模式是软件工程的基石,如同大厦的一块块砖石一样.项目中合理的运用设计模式可以完美的解决很多问题,每种模式在现在中都有相应的原理来与之对应,每一个模式描述了一个在我们周…

In Week 6, you will be learning about systematically improving your learning algorithm. The videos for this week will teach you how to tell when a learning algorithm is doing poorly, and describe the 'best practices' for how to 'debug' your learning…

http://blog.csdn.net/pipisorry/article/details/44119187 机器学习Machine Learning - Andrew NG courses学习笔记 Machine Learning System Design机器学习系统设计 Prioritizing What to Work On优先考虑做什么 the first decision we must make is how do we want to represent x, that is…

Design Patterns in Smalltalk    MVC在Smalltalk的MVC设计模式 The Model/View/Controller (MVC) triad ofclasses [KP88] is used to build user  interfaces in Smalltalk-80. Looking at thedesign patterns inside MVC should help you see what we mean by the term"patt…

一些笔记. strategy : facilitates the switch of the different but related algorithms/behaviors observer proxy : controls the access to the real subject ; shares the common interface with the real subject and sometimes provides a subset of the operations i…

设计模式(Design Patterns) ——可复用面向对象软件的基础 设计模式(Design pattern)是一套被反复使用.多数人知晓的.经过分类编目的.代码设计经验的总结.使用设计模式是为了可重用代码.让代码更容易被他人理解.保证代码可靠性. 毫无疑问,设计模式于己于他人于系统都是多赢的,设计模式使代码编制真正工程化,设计模式是软件工程的基石,如同大厦的一块块砖石一样.项目中合理的运用设计模式可以完美的解决很多问题,每种模式在现在中都有相应的原理来与之对应,每一个模式描述了一个在我们周…

设计模式(Design Patterns) ——可复用面向对象软件的基础 设计模式(Design pattern)是一套被反复使用.多数人知晓的.经过分类编目的.代码设计经验的总结.使用设计模式是为了可重用代码.让代码更容易被他人理解.保证代码可靠性. 毫无疑问,设计模式于己于他人于系统都是多赢的,设计模式使代码编制真正工程化,设计模式是软件工程的基石,如同大厦的一块块砖石一样.项目中合理的运用设计模式可以完美的解决很多问题,每种模式在现在中都有相应的原理来与之对应,每一个模式描述了一个在我们周…

Chapter 1.Design Patterns and MapReduce MapReduce 是一种运行于成百上千台机器上的处理数据的框架,目前被google,Hadoop等多家公司或社区广泛使用.这种计算框架是非常强大,但它没有提供一个处理所谓“big data”的通用,普遍的情形,所以它能很好的解决一些问题,在处理某些问题上也存在挑战.这本书教给你在什么问题上适合使用MapReduce和怎样高效的使用它. 初次接触时,很多人没有意识到MapReduce是一种计算框架而不仅仅是一个工具.…

Overview Design patterns are ways to reuse design solutions that other software developers have created for common and recurring problems. The design patterns on this page are from the book Design Patterns, Elements of Reusable Object-Oriented Softwa…

翻译的是这本书: Chapter 1.Design Patterns and MapReduce MapReduce 是一种运行于成百上千台机器上的处理数据的框架,目前被google,Hadoop等多家公司或社区广泛使用.这种计算框架是非常强大,但它没有提供一个处理所谓“big data”的通用,普遍的情形,所以它能很好的解决一些问题,在处理某些问题上也存在挑战.这本书教给你在什么问题上适合使用MapReduce和怎样高效的使用它. 初次接触时,很多人没有意识到MapReduce是一种计算框架而…

云设计模式 https://azure.microsoft.com/zh-cn/blog/design-patterns-for-microservices/ https://www.cnblogs.com/viaiu/p/10011376.html The AzureCAT patterns & practices team has published nine new design patterns on the Azure Architecture Center. These nine p…

Lecture 11—Machine Learning System Design 11.1 垃圾邮件分类 本章中用一个实际例子: 垃圾邮件Spam的分类 来描述机器学习系统设计方法.首先来看两封邮件,左边是一封垃圾邮件Spam,右边是一封非垃圾邮件Non-Spam:垃圾邮件有很多features.如果我们想要建立一个Spam分类器,就要进行有监督学习,将Spam的features提取出来,而希望这些features能够很好的区分Spam.事实上,对于spam分类器,通常选取spam中词频最高的…

(1) Advice for applying machine learning Deciding what to try next 现在我们已学习了线性回归.逻辑回归.神经网络等机器学习算法,接下来我们要做的是高效地利用这些算法去解决实际问题,尽量不要把时间浪费在没有多大意义的尝试上,Advice for applying machine learning & Machinelearning system design 这两课介绍的就是在设计机器学习系统的时候,我们该怎么做? 假设我们实现了一…