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Text Analytics with Python

A Practical Real-World Approach to Gaining Actionable Insights from your Data

Medium: Buch
ISBN: 978-1-4842-2387-1
Verlag: APRESS L.P.
Erscheinungstermin: 31.01.2017
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Derive useful insights from your data using Python. You will learn both basic and advanced concepts, including text and language syntax, structure, and semantics. You will focus on algorithms and techniques, such as text classification, clustering, topic modeling, and text summarization.

Text Analytics with Python  teaches you the techniques related to natural language processing and text analytics, and you will gain the skills to know which technique is best suited to solve a particular problem. You will look at each technique and algorithm with both a bird's eye view to understand how it can be used as well as with a microscopic view to understand the mathematical concepts and to implement them to solve your own problems.

What You Will Learn:

  • Understand the major concepts and techniques of natural language processing (NLP) and text analytics, including syntax and structure
  • Build a text classification system to categorize news articles, analyze app or game reviews using topic modeling and text summarization, and cluster popular movie synopses and analyze the sentiment of movie reviews
  • Implement Python and popular open source libraries in NLP and text analytics, such as the natural language toolkit (nltk), gensim, scikit-learn, spaCy and Pattern


Who This Book Is For :
IT professionals, analysts, developers, linguistic experts, data scientists, and anyone with a keen interest in linguistics, analytics, and generating insights from textual data

Produkteigenschaften

  • Artikelnummer: 9781484223871
  • Medium: Buch
  • ISBN: 978-1-4842-2387-1
  • Verlag: APRESS L.P.
  • Erscheinungstermin: 31.01.2017
  • Sprache(n): Englisch
  • Auflage: 1. Auflage 2017
  • Produktform: Kartoniert, Book
  • Gewicht: 6204 g
  • Seiten: 385
  • Format (B x H x T): 156 x 236 x 25 mm
  • Ausgabetyp: Kein, Unbekannt
  • Nachauflage: 978-1-4842-4353-4

Themen

Autoren/Hrsg.

Autoren

Chapter 1:  Natural Language Basics.-Chapter Goal: Introduces the readers to the basics of NLP and Text processingNo of pages: 40 - 50 Sub -Topics1. Language Syntax and Structure2. Text formats and grammars3. Lexical and Text Corpora resources4. Deep dive into the Wordnet corpus5. Parts of speech, Stemming and lemmatizationChapter 2:  Python Refresher for Text AnalyticsChapter Goal: A useful chapter for people who do not know python as well as for experienced people who can use it as a quick reference for useful commands and techniques for text processing using pythonNo of pages: 30 - 35Sub - Topics 1. Python data structures and constructs  2. Functions, conditionals and code flow3. Handling strings with Python4. Regular Expressions with Python5. Quick glance into nltk, gensim and patternChapter 3:  Text Processing Chapter Goal: This chapter covers all the techniques and capabilities needed for processing and parsing text into easy to understand formats. We also look at how to segment and normalize text. No of pages : 35 - 40Sub - Topics:  1. Sentence and word tokenization2. Text tagging and chunking3. Text Parse Trees3. Text normalization4.   Text spell checks and removal of redundant characters5.   Synonyms and SynsetsChapter 4: Text ClassificationChapter Goal: Introduces readers to the concept of classification as a supervised machine learning problem and looks at a real world example for classifying text documentsNo of pages: 40 - 45Sub - Topics: 1.  Classification basics2.   Types of classifiers3.   Feature generation of text documents4. Types of feature generators5. Building a text classifier on real world data 6. Evaluating Classifiers7. Binary and multi-class classification modelsChapter 5: Text summarization and topic modelingChapter Goal: Introduces the concepts of text summarization, n-gram tagging analysis and topic models to the readers and looks at some real world datasets and hands-on implementations on the sameNo of pages: 40 - 45Sub - Topics: 1. Text summarization concepts2. Dimensionality reduction3. N-gram tagging models4. Topic modeling using LDA and LSA5. Generate topics from real world data6. N-gram analysis to generate patterns from app reviewsChapter 6: Text Clustering and Similarity analysisChapter Goal: We look at unsupervised machine learning concepts here like text clustering and similarity measuresNo of pages: 35 - 40Sub - Topics: 1. Clustering concepts2. Analyzing text similarity3. Implementing text similarity with cosine, jaccard measures4. Text clustering algorithms5. Hands on text clustering on real world dataChapter 7: Sentiment Analysis Chapter Goal: We look at solving a popular problem of analyzing sentiment from text using a combination of methods learnt earlier including classification and also lexical analysisNo of pages: 35 - 40Sub - Topics: 1. What is sentiment analysis2. Looking at lexical corpora for sentiment 3. Analyzing sentiment using lexical analysis (hands-on)4. Building a sentiment analysis classifier (hands-on)