利用Scikit-Learn和TensorFlow实战深度学习:构建智能系统指南

5星 · 超过95%的资源 需积分: 50 261 下载量 88 浏览量 更新于2024-07-19 4 收藏 45.31MB PDF 举报
"Hands-On Machine Learning with Scikit-Learn and TensorFlow 2017" 是一本实用指南,由 Aurélien Géron 编写,旨在帮助读者深入理解并掌握机器学习的基本概念、工具和技术,特别是通过两个流行的Python框架:scikit-learn 和 TensorFlow。这本书的诞生正值深度学习取得显著进展的时代,使得即使对技术不熟悉的程序员也能利用这些易于使用的工具来开发能够从数据中学习的程序。 本书的核心理念是通过具体的实例和最少的理论,引导读者逐步掌握机器学习的各个环节。从基础开始,读者将学习简单的线性回归,然后逐渐升级到复杂的深度神经网络。作者强调实践,每章都配有练习,使学习者能够将所学知识应用到实际项目中。对于开始者来说,只要具备一定的编程经验,就能跟随本书进入这个充满潜力的领域。 本书的主要内容包括但不限于以下几点: 1. 入门指引:书中会介绍机器学习的基本概念,让读者了解这一领域的背景和重要性,以及如何将其应用于解决现实生活中的问题。 2. scikit-learn:作为首选的库,scikit-learn 提供了丰富的监督和无监督学习算法,如分类、回归、聚类和降维等。读者将学会如何使用这个库进行数据预处理、特征工程和模型训练。 3. TensorFlow:作为深度学习的主导框架,TensorFlow 允许构建和优化复杂的神经网络结构。章节会涵盖张量操作、计算图、自动微分和模型训练等内容,让读者熟悉深度学习的工作原理。 4. 实战项目:书中不仅提供理论讲解,还有实战项目,例如图像识别、文本分析和推荐系统,帮助读者在实践中巩固所学知识,并提升解决问题的能力。 5. 最佳实践:除了基本技术,书中还会探讨如何选择合适的模型、评估性能、避免过拟合以及如何处理大规模数据等问题,分享业界的最佳实践。 6. 持续学习与进阶:随着读者技能的提升,书中还将引导他们探索更高级的主题,如深度学习的最新进展、迁移学习和强化学习,以便应对不断发展的技术趋势。 这是一本适合初学者和有一定编程基础的读者,希望通过Scikit-Learn和TensorFlow来探索机器学习世界的专业书籍。通过阅读和实践,读者将建立起坚实的机器学习基础,为未来的智能系统开发打下坚实的基础。
2017-12-23 上传
When most people hear “Machine Learning,” they picture a robot: a dependable butler or a deadly Terminator depending on who you ask. But Machine Learning is not just a futuristic fantasy, it’s already here. In fact, it has been around for decades in some specialized applications, such as Optical Character Recognition (OCR). But the first ML application that really became mainstream, improving the lives of hundreds of millions of people, took over the world back in the 1990s: it was the spam filter. Not exactly a self-aware Skynet, but it does technically qualify as Machine Learning (it has actually learned so well that you seldom need to flag an email as spam anymore). It was followed by hundreds of ML applications that now quietly power hundreds of products and features that you use regularly, from better recommendations to voice search. Where does Machine Learning start and where does it end? What exactly does it mean for a machine to learn something? If I download a copy of Wikipedia, has my computer really “learned” something? Is it suddenly smarter? In this chapter we will start by clarifying what Machine Learning is and why you may want to use it. Then, before we set out to explore the Machine Learning continent, we will take a look at the map and learn about the main regions and the most notable landmarks: supervised versus unsupervised learning, online versus batch learning, instance-based versus model-based learning. Then we will look at the workflow of a typical ML project, discuss the main challenges you may face, and cover how to evaluate and fine-tune a Machine Learning system. This chapter introduces a lot of fundamental concepts (and jargon) that every data scientist should know by heart. It will be a high-level overview (the only chapter without much code), all rather simple, but you should make sure everything is crystal-clear to you before continuing to the rest of the book. So grab a coffee and let’s get started!