机器学习算法第二版 这是Packt发布的《 的代码库。 流行于数据科学和机器学习的算法 这本书是关于什么的？ 机器学习以其强大而快速的大型数据集预测而获得了极大的普及。 但是，强大功能背后的真正力量是涉及大量统计分析的复杂算法，该算法搅动大型数据集并产生实质性见解。 本书涵盖以下激动人心的功能： 研究特征选择和特征工程过程 评估性能和误差权衡以进行线性回归 建立数据模型并使用不同类型的算法了解其工作方式 学习调整支持向量机（SVM）的参数 探索自然语言处理（NLP）和推荐系统的概念 如果您觉得这本书适合您，请立即获取！ 说明和导航 所有代码都组织在文件夹中。 例如，Chapter02。 该代码将如下所示： from sklearn.svm import SVC from sklearn.model_selection import cross_val_score svc =

The Best-Selling C++ Resource Now Updated for C++11 The C++ standard library provides a set of common classes and interfaces that greatly extend the core C++ language. The library, however, is not self-explanatory. To make full use of its components–and to benefit from their power–you need a resource that does far more than list the classes and their functions. The C++ Standard Library: A Tutorial and Reference, Second Edition, describes this library as now incorporated into the new ANSI/ISO C++ language standard (C++11). The book provides comprehensive documentation of each library component, including an introduction to its purpose and design; clearly written explanations of complex concepts; the practical programming details needed for effective use; traps and pitfalls; the exact signature and definition of the most important classes and functions; and numerous examples of working code. The book focuses in particular on the Standard Template Library (STL), examining containers, iterators, function objects, and STL algorithms. The book covers all the new C++11 library components, including Concurrency Fractional arithmetic Clocks and timers Tuples New STL containers New STL algorithms New smart pointers New locale facets Random numbers and distributions Type traits and utilities Regular expressions The book also examines the new C++ programming style and its effect on the standard library, including lambdas, range-based for loops, move semantics, and variadic templates.

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Summary The Well-Grounded Rubyist, Third Edition is a beautifully written tutorial that begins with your first Ruby program and takes you all the way to sophisticated topics like reflection, threading, and recursion. Ruby masters David A. Black and Joe Leo distill their years of knowledge for you, concentrating on the language and its uses so you can use Ruby in any way you choose. Updated for Ruby 2.5. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology Designed for developer productivity, Ruby is an easy-to-learn dynamic language perfect for creating virtually any kind of software. Its famously friendly development community, countless libraries, and amazing tools, like the Rails framework, have established it as the language of choice for high-profile companies, including GitHub, SlideShare, and Shopify. The future is bright for the well-grounded Rubyist! About the Book In The Well-Grounded Rubyist, Third Edition, expert authors David A. Black and Joseph Leo III deliver Ruby mastery in an easy-to-read, casual style. You'll lock in core principles as you write your first Ruby programs. Then, you'll progressively build up to topics like reflection, threading, and recursion, cementing your knowledge with high-value exercises to practice your skills along the way. What's Inside Basic Ruby syntax Running Ruby extensions FP concepts like currying, side-effect-free code, and recursion Ruby 2.5 updates About the Reader For readers with beginner-level programming skills, as well as more advanced programmers interested in Ruby and experienced Rubyists looking to review the foundations of their practice. About the Authors David A. Black is an internationally known Ruby developer and author, and a cofounder of Ruby Central. Ruby teacher and advocate Joseph Leo III is the founder of Def Method and lead organizer of the Gotham Ruby Conference. Table of Contents PART 1 RUBY FOUNDATIONS Chapter 1. Bootstrapping your Ruby literacy Chapter 2. Objects, methods, and local variables Chapter 3. Organizing objects with classes Chapter 4. Modules and program organization Chapter 5. The default object (self), scope, and visibility Chapter 6. Control-flow techniques PART 2 BUILT-IN CLASSES AND MODULES Chapter 1. Built-in essentials Chapter 2. Strings, symbols, and other scalar objects Chapter 3. Collection and container objects Chapter 4. Collections central: Enumerable and Enumerator Chapter 5. Regular expressions and regexp-based string operations Chapter 6. File and I/O operations PART 3 RUBY DYNAMICS Chapter 1. Object individuation Chapter 2. Callable and runnable objects Chapter 3. Callbacks, hooks, and runtime introspection Chapter 4. Ruby and functional programming

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Mastering Modern Linux, 2nd Edition English | 2018 | ISBN-10: 0815380984 | 384 pages | PDF | 5 MB

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网上下载的，已经修改好，可用于Delphi 2010 包含两个文件，一个iphlpapi.pas，用来包装 iphlpapi的windwos sdk接口，一个iphelper.pas 有很多有用的辅助函数

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