Design clever algorithms that can uncover interesting structures and hidden relationships in unstructured, unlabeled data Key Features * Learn how to select the most suitable Python library to solve your problem * Compare k-Nearest Neighbor (k-NN) and non-parametric methods and decide when to use them * Delve into the applications of neural networks using real-world datasets Book Description Unsupervised learning is a useful and practical solution in situations where labeled data is not available. Applied Unsupervised Learning with Python guides you on the best practices for using unsupervised learning techniques in tandem with Python libraries and extracting meaningful information from unstructured data. The course begins by explaining how basic clustering works to find similar data points in a set. Once you are well versed with the k-means algorithm and how it operates, you’ll learn what dimensionality reduction is and where to apply it. As you progress, you’ll learn various neural network techniques and how they can improve your model. While studying the applications of unsupervised learning, you will also understand how to mine topics that are trending on Twitter and Facebook and build a news recommendation engine for users. You will complete the course by challenging yourself through various interesting activities such as performing a Market Basket Analysis and identifying relationships between different merchandises. By the end of this course, you will have the skills you need to confidently build your own models using Python. What you will learn * Understand the basics and importance of clustering * Build k-means, hierarchical, and DBSCAN clustering algorithms from scratch with built-in packages * Explore dimensionality reduction and its applications * Use scikit-learn (sklearn) to implement and analyse principal component analysis (PCA)on the Iris dataset * Employ Keras to build autoencoder models for the CIFAR-10 dataset * Apply the Apriori algorithm with machine learning extensions (Mlxtend) to study transaction data Who this book is for This course is designed for developers, data scientists, and machine learning enthusiasts who are interested in unsupervised learning. Some familiarity with Python programming along with basic knowledge of mathematical concepts including exponents, square roots, means, and medians will be beneficial.

The life of William Shakespeare, arguably the most significant figure in the Western literary canon, is relatively unknown. Shakespeare was born in Stratford-upon-Avon in 1565, possibly on the 23rd April, St. George's Day, and baptised there on 26th April. Little is known of his education and the first firm facts to his life relate to his marriage, aged 18, to Anne Hathaway, who was 26 and from the nearby village of Shottery. Anne gave birth to their first son six months later. Shakespeare's first play, The Comedy of Errors began a procession of real heavyweights that were to emanate from his pen in a career of just over twenty years in which 37 plays were written and his reputation forever established. This early skill was recognised by many and by 1594 the Lord Chamberlain's Men were performing his works. With the advantage of Shakespeare's progressive writing they rapidly became London's leading company of players, affording him more exposure and, following the death of Queen Elizabeth in 1603, a royal patent by the new king, James I, at which point they changed their name to the King's Men. By 1598, and despite efforts to pirate his work, Shakespeare's name was well known and had become a selling point in its own right on title pages. No plays are attributed to Shakespeare after 1613, and the last few plays he wrote before this time were in collaboration with other writers, one of whom is likely to be John Fletcher who succeeded him as the house playwright for the King's Men. William Shakespeare died two months later on April 23rd, 1616, survived by his wife, two daughters and a legacy of writing that none have since yet eclipsed.

If ever a writer needed an introduction Arthur Conan Doyle would not be considered that man. After all, Sherlock Holmes is perhaps the foremost literary detective of any age. Add to this canon his stories of science fiction and his poems, his historical novels, his plays, his political campaigning, his efforts in establishing a Court of Appeal and there is little room for anything else. Except he was also an exceptional writer of short stories of the horrific and macabre. Something very different from what you might expect. Born in Arthur Conan Doyle was born on 22 May 1859 at 11 Picardy Place, Edinburgh, Scotland. From 1876 - 1881 he studied medicine at the University of Edinburgh following which he was employed as a doctor on the Greenland whaler Hope of Peterhead in 1880 and, after his graduation, as a ship's surgeon on the SS Mayumba during a voyage to the West African coast in 1881. Arriving in Portsmouth in June of that year with less than GBP10 (GBP700 today) to his name, he set up a medical practice at 1 Bush Villas in Elm Grove, Southsea. The practice was initially not very successful. While waiting for patients, Conan Doyle again began writing stories and composed his first novel The Mystery of Cloomber. Although he continued to study and practice medicine his career was now firmly set as a writer. And thereafter great works continued to pour out of him.

Francis Beaumont was born in 1584 near the small Leicestershire village of Thringstone. Unfortunately precise records of much of his short life do not exist.The first date we can give for his education is at age 13 when he begins at Broadgates Hall (now Pembroke College, Oxford). Sadly, his father died the following year, 1598. Beaumont left university without a degree and entered the Inner Temple in London in 1600. A career choice of Law taken previously by his father.The information to hand is confident that Beaumont's career in law was short-lived. He was quickly attracted to the theatre and soon became first an admirer and then a student of poet and playwright Ben Jonson. Jonson at this time was a cultural behemoth; very talented and a life full of volatility that included frequent brushes with the authorities.Beaumont's first work was Salmacis and Hermaphroditus, it debuted in 1602.By 1605, Beaumont had written commendatory verses to Volpone one of Ben Jonson's masterpieces.His solo playwriting career was limited. Apart from his poetry there were only two; The Knight of the Burning Pestle was first performed by the Children of the Blackfriars company in 1607. The audience however was distinctly unimpressed.The Masque of the Gentlemen of Grays-Inne and the Inner-Temple was written for part of the wedding festivities for the Princess Elizabeth, daughter of King James I and Frederick V, Elector Palatine. It was performed on 20 February 1613 in the Banqueting House at Whitehall Palace.By that point his collaboration with John Fletcher, which was to cover approximately 15 plays together with further works later revised by Philip Massinger, was about to end after his stroke and death later that year.That collaboration is seen as one of the most significant and fruitful of the English theatre.

Nicholas Rowe was born in Little Barford, Bedfordshire, England, on June 20th, 1674. He was educated at Highgate School, and then at Westminster School under the tutelage of Dr. Busby.In 1688, Rowe became a King's Scholar, and then in 1691 gained entrance into Middle Temple. This was his father's decision (he was a barrister) who felt that his son had made sufficient progress to study law. While at Middle Temple, he decided that studying law was easier if seen as a system of rational government and impartial justice and not as a series of precedents, or collection of positive precepts.On his father's death, when he was nineteen, he became the master of a large estate and an independent fortune. His future path now was to ignore law and write poetry with a view to eventually writing plays.The Ambitious Stepmother, Rowe's first play, produced in 1700 at Lincoln's Inn Fields by Thomas Betterton and set in Persepolis, was well received. This was followed in 1701 by Tamerlane. In this play the conqueror Timur represented William III, and Louis XIV is denounced as Bajazet. It was for many years regularly acted on the anniversary of William's landing at Torbay. In 1704, he tried his hand at comedy, with The Biter at Lincoln's Inn Fields. The play is said to have amused no one except the author, and Rowe returned to tragedy in Ulysses (1706). For Johnson, this play was to share the fate of many such plays based on mythological heroes, as, "e;We have been too early acquainted with the poetical heroes to expect any pleasure from their revival"e;The Royal Convert (1707) dealt with the persecutions endured by Aribert, son of Hengist and the Christian maiden Ethelinda. The story was set in England in an obscure and barbarous age. Rodogune was a tragic character, of high spirit and violent passions, yet with a wicked with a soul that would have been heroic if it had been virtuous.Rowe is however well known for his work on Shakespeare's plays. He published the first 18th century edition of Shakespeare in six volumes in 1709. His practical knowledge of the stage helped him divide the plays into scenes and acts, with entrances and exits of the players noted. The spelling of names was normalized and each play prefixed with a dramatis personae. This 1709 edition was also the first to be illustrated, a frontispiece engraving being provided for each play. Unfortunately, Rowe based his text on the discredited Fourth Folio, a failing which many succeeding him also followed.Rowe also wrote a short biography of William Shakespeare, entitled, Some Account of the Life of Mr. William Shakespeare.In Dublin in 1712 a revival of his earlier play, Tamerlane, at a time when political passions were running high, the performance provoked a serious riot.The Tragedy of Jane Shore, played at Drury Lane with Mrs Oldfield in the title role in 1714. It ran for nineteen nights, and kept the stage longer than any other of Rowe's works. In the play, which consists chiefly of domestic scenes and private distress, the wife is forgiven because she repents, and the husband is honoured because he forgives.Whilst his plays met with little success at the time his poems were received extremely well. Although he was not prolific nor his output large the quality was high. With the accession to the throne of George I he was made a surveyor of customs, and then, in 1715, he succeeded Nahum Tate as poet laureate. It was the high point of his artistic life.He was also appointed clerk of the council to the Prince of Wales, and in 1718 was nominated by Lord Chancellor Parker as clerk of the presentations in Chancery. Nicholas Rowe died on December 6th, 1718, and was buried in Westminster Abbey.Rowe married first a daughter of a Mr Parsons and left a son John. By his second wife Anne, nee Devenish, he had a daughter Charlotte.

Harriet Elisabeth Beecher Stowe was born in Litchfield, Connecticut, on June 14th 1811. Over the course of her Life Harriet wrote more than twenty books including travel memoirs and collections of letters and articles. Her stand out work is undoubtedly 'Uncle Tom's Cabin' about the life of African Americans under slavery. It reached millions as both a book and a play and was influential in setting both the tone and the agenda for anti slavery forces in the North and for unyielding anger in the South. When she was invited to the White House by Lincoln he is rumoured to have said "e;so you are the little woman who wrote the book that started this great war."e; In the 1870s, Stowe's brother, Henry Ward, also an abolitionist, was accused of adultery and a national scandal ensured. Harriet fled to Florida unable to bear the attacks on her brother, who she believed innocent. Harriet was among the founders of the Hartford Art School, which later became part of the University of Hartford. She was also influential in the call for women to have a better standing in society and considered the cause as just as necessary as the abolition of slavery. With the death of her husband Calvin Stowe in 1886, after a half century together, Harriet's own health started to decline rapidly. By 1888 it was reported in The Washington Post that due to dementia she had started "e;writing Uncle Tom's Cabin over again. She imagined that she was engaged in the original composition, and for several hours every day she industriously inscribed long passages of the book, almost word for word, unconsciously from memory, the authoress imagining that she composed the matter as she went along. To her diseased mind the story was brand new and she frequently exhausted herself with labor which she regarded as freshly created."e; Harriet Beecher Stowe died on July 1, 1896, at age eighty-five in Hartford, Connecticut. She is buried in the historic cemetery at Phillips Academy in Andover, Massachusetts.

一、正文。正文按场景分类，每个大类中又分若干小项，如“事物的动向”中包含“存在”“移动”“触”等小项，这样能让学习者在把握出题范围的同时，了解各个类别中的近义词表达。正文中的例句简短、精练。通过对例句的学习，学习者可以掌握单词*核心的用法。全书所有例句均标注注音假名，以便学习者学习。二、课后练习。练习不仅采用了出题形式中的题型，还根据学习需要，增加了“汉字书写”“读音书写”“词语搭配”等题型，从而帮助学习者更全面地掌握词语的应用知识。三、模拟试题。选择出题频率高的词汇作为考查对象，有助于学习者有效检验和评价自己的学习效果和实战能力。

本故事为世界经典童话之一。安徒生童话《白雪皇后》是安徒生作品中经典的作品之一，又译冰雪女王、白雪女王、冰雪皇后、雪之女王、雪后等，曾被多个国家翻拍成不同版本的电影以及动画。童话中讲述魔鬼的一面镜子的两片碎片注入小男孩加伊（又译凯、凯伊）的内心和眼睛，从而使他变得冷酷无情，并被白雪皇后带入她的冰宫，小女孩格尔达（又译盖尔达）是加伊的好朋友，格尔达亲自寻找白雪皇后并解除加伊身上的诅咒，路上遇到重重困难终被克服。全书为日文版。难词标注假名，供日语学习者学习使用。

《美人鱼的故事》选自安徒生童话，是安徒生先生在1837年的作品。讲述了人鱼公主和王子从相见到相爱再到无法在一起的凄美爱情故事。本故事为世界经典童话之一。故事情节为普通读者熟知。全书为日文版。难词标注假名，供日语学习者学习使用。

一、正文。正文按场景分类，每个大类中又分若干小项，如“人的身体”中包含“全身”“伤病”“医疗”等小项，这样能让学习者在把握出题范围的同时，了解各个类别中的近义词表达。正文中的例句简短、精练。通过对例句的学习，学习者可以掌握单词*核心的用法。全书所有例句均标注注音假名，以便学习者学习。二、课后练习。练习不仅采用了出题形式中的题型，还根据学习需要，增加了“汉字书写”“读音书写”“词语搭配”等题型，从而帮助学习者更全面地掌握词语的应用知识。三、模拟试题。选择出题频率高的词汇作为考查对象，有助于学习者有效检验和评价自己的学习效果和实战能力。

TOPIK II（中高级）考纲语法得到TOPIK考试出题方——韩国国立国语院的官方授权，由TOPIK真题授权机构——韩国教育振兴研究会专门针对中国TOPIK考生开发。语法大纲按照补助词、副词格助词、呼格助词、冠形词形语尾、先语末语尾、连接语尾、终结语尾和复合表达（惯用型）进行分类。书中，每个语法条目包含对应的释义、语法解释、接续方式、真题例句。本书作为TOPIK II（中高级）的考试指南，旨在为TOPIK考生、韩语学习者和韩语教师提供TOPIK语法条目的依据。

《简单易学日语会话》是一本为对日语会话感兴趣的学习者造的全面、地道的日语会话图书。全书分七个部分对日常生活中常见的场景行分类，每部分细化为6个小节，每小节更一步分不同话题对日语会话中常用的句子行了归纳。正文不仅涵盖场景常用句，更有举一反三板块列出当前场景的常用句子。此外，每节还设置知识加油站板块，对当前小节经常使用的单词行了补充，便于学习者在学习会话的同时提升词汇量。

本书是为了帮助日语学习者学习标准地道的日语口语而编写的，旨在利用超简单的方法让日语初学者有效提高日语口语水平。本书围绕与生活息息相关的话题，分谈天说地、着装扮、品尝美食、房屋住宿、交通出行、休闲娱乐、日常物、潮流生活八个部分，涵盖生活方方面面的常用对话。

日语专业本科生教材

法语专业毕业论文写作反应了学生运用法语、运 用所学专业理论和知识，行独立思考和创作的综合 能力。《法语专业毕业论文写作指南》的作者王秀丽 多年来一直担任各级别法语专业毕业论文的指导、审 阅和答辩工作，具有丰富的学位论文写作知识和实践 经验。针对目前法语专业毕业论文写作中普遍存在的 畏难情绪、言之无物、条理性和规范性欠缺的情况， 作者从个人经验出发，遴选了大量毕业论文样本，挑 选出丰富的实例，编写了本指南。 本书以论文的写作过程为出发，从写作前的准 备，到论文每一部分的撰写，再到写作后的答辩修改 ，一一给出可行性建议，条理清晰，实用性强，可供 法语专业师生指导和撰写毕业论文时参考使用。

本书是日语专业写作课教材，全书以日语写成，共15课。涵盖了各类文体，如自我介绍、书信、说明文、短评、随笔、小论文、调查与报告等。每课结构如下： 1.简介某种文体的定义和特点。 2.提供1～2篇该文体的范文，并对范文进行点评。这是本书的特色。 3.详细介绍该文体的写作方法、写作要点以及常用表达。 4.提供形式多样的练习。 本书架构清晰，内容丰富实用，且经过上海外国语大学日本文化经济学院多年试用打磨，是一部比较成熟完善的写作课教材。 本书附‘微课”视频，请阅读本书封二信息后获取。

　　《人鼠之间》讲述了二十世纪30年代美国经济大萧条时期，两个一贫如洗却又相依为命的美国流动农业工人佐治和李奈从怀揣梦想、追逐梦想、近梦想到梦想破灭的悲惨故事，艺术地展现了田园牧歌式的农庄生活和残酷的社会现实的冲突，反映了人对生存条件的真切感受。

“书味在胸中，甘于饮陈酒。”好的文学作品，如同一壶陈年的老酒，沁人心脾，回味无穷。本书共选取57篇经典作品，包括经典诗歌、小说、名家散文三个部分。在诗歌部分，除了金素月、金永郎、韩龙云等现当代诗坛文人的作品，还选取了朝鲜王朝时期的几篇时调作品。书中的每一篇作品都附有作品介绍、原文欣赏、生词短语、参考译文。通过文学作品和译文的阅读，读者不仅可以提高文学鉴赏能力，还可以一步提升韩语水平及翻译能力。此外，本书中选取的每一篇作品都堪称韩国文学史上的经典，读者在享受文学经典的同时，可以深了解韩国人的文化、思想情感及美学观念，并能产生心灵的共鸣。此外，本书还提供朗读音频，读者在欣赏语言文字的同时，让耳朵也能够充分感受韩语的魅力与美妙。

本书是专门为西班牙语刚门或基础较弱、急于口说西班牙语的读者量身定制的一本实用西班牙语速成工具书，能帮助他们轻轻松松快速掌握简单西班牙语。 全书分为四大部分，将日常必需单词、日常生活用语、情景应急口语全部覆盖，第四部分附录对西班牙国情、节日、习俗和美食做了介绍。这是一本即翻即用型的便携工具书，是赴西班牙语国家学习、生活、工作、旅游和物的好帮手。

《完全掌握.新韩国语能力考试TOPIK语法（初级、中高级全收录）》并非常规的语法书，而是为TOPIK考生“量身定制”的工具书。本书针对备考TOPIK初级和中高级的考生编写，强调实用性和学习效果。通过学习本书，考生可以在一个月内了解和巩固TOPIK考试必考的360个语法条目。如果某个语法有多种用法，但考试中只考其中两种常见用法，本书只收录常见用法。作者在解释语法时充分结合TOPIK考，尽可能多地列举出考试中可能出现的形式。另外，本书还收录相近语法和语法辨析，其中相近语法是TOPIK阅读专项的重要考，语法辨析则从实际应用层面阐述了作者对相近语法的解析。

  这部由周异夫主编的《实用日语写作教程》的内 容涵盖了常用的各类应用文。这些文章在实际生活和 工作中常常表现为信函的形式，为了方便教学和学习 ，本教材将其分为一般信函和商务信函两大类，并根 据不同的类别分别讲解。对于各类文章，在简要说明 其基本内容、特、写作要及注意事项的基础上， 通过典型例文演示其基本用语、文章结构和基本格式 ，并针对该例文行简要评述，使学习者尽快掌握该 类文章的特和写作技巧。在例文的选取和编写中， 也注意到其语句和内容尽量简洁，以期学习者能够对 基本内容一目了然。