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Category: Python

Python Text Processing with NLTK 2.0 Cookbook by Jacob Perkins

By Jacob Perkins

Use Python's NTLK suite of libraries to maximise your normal Language Processing capabilities.
* speedy become familiar with common Language Processing - with textual content research, textual content Mining, and beyond.
* find out how machines and crawlers interpret and approach average languages.
* simply paintings with large quantities of information and easy methods to deal with disbursed processing.
* a part of Packt's Cookbook sequence: each one recipe is a gently prepared series of directions to accomplish the duty as successfully as possible.

In Detail

Natural Language Processing is used all over the place - in se's, spell checkers, cellphones, computing device video games - even your washer. Python's common Language Toolkit (NTLK) suite of libraries has swiftly emerged as essentially the most effective instruments for typical Language Processing. you need to hire not anything under the simplest thoughts in typical Language Processing - and this booklet is your answer.

Python textual content Processing with NTLK 2.0 Cookbook is your convenient and illustrative advisor, in order to stroll you thru the entire ordinary Language Processing ideas in a step by step demeanour. it's going to demystify the complex positive factors of textual content research and textual content mining utilizing the great NTLK suite.

This booklet cuts brief the preamble and also you dive correct into the technology of textual content processing with a pragmatic hands-on approach.

Get started out with studying tokenization of textual content. Get an outline of WordNet and the way to take advantage of it. study the fundamentals in addition to complex good points of Stemming and Lemmatization. realize a variety of how one can change phrases with less complicated and extra universal (read: extra searched) versions. Create your personal corpora and learn how to create customized corpus readers for JSON documents in addition to for info saved in MongoDB. Use and manage POS taggers. rework and normalize parsed chunks to supply a canonical shape with no altering their that means. Dig into characteristic extraction and textual content class. find out how to simply deal with large quantities of knowledge with none loss in potency or speed.

This e-book will train you all that and past, in a hands-on learn-by-doing demeanour. Make your self a professional in utilizing the NTLK for ordinary Language Processing with this convenient companion.

What you are going to examine from this book
* research textual content categorization and subject identification
* examine Stemming and Lemmatization and the way to move past the standard spell checker
* exchange negations with antonyms on your text
* learn how to tokenize phrases into lists of sentences and phrases, and achieve an perception into WordNet
* rework and control chunks and trees
* examine complex gains of corpus readers and create your individual customized corpora
* Tag various elements of speech via growing, education, and utilizing a part-of-speech tagger
* increase accuracy through combining a number of part-of-speech taggers
* how you can do partial parsing to extract small chunks of textual content from a part-of-speech tagged sentence
* Produce an alternate canonical shape with out altering the which means by way of normalizing parsed chunks
* learn the way se's use average Language Processing to method text
* Make your web site extra discoverable by means of studying tips to instantly substitute phrases with extra searched equivalents
* Parse dates, occasions, and HTML
* educate and control kinds of classifiers

Approach

The learn-by-doing technique of this booklet will allow you to dive correct into the center of textual content processing from the first actual web page. every one recipe is thoroughly designed to satisfy your urge for food for normal Language Processing. filled with a number of illustrative examples and code samples, it'll make the duty of utilizing the NTLK for ordinary Language Processing effortless and easy.

Who this e-book is written for

This publication is for Python programmers who are looking to quick familiarize yourself with utilizing the NLTK for usual Language Processing. Familiarity with simple textual content processing options is needed. Programmers skilled within the NTLK also will locate it worthwhile. scholars of linguistics will locate it invaluable.

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Fundamentals of Python : from first programs through data by Kenneth A. Lambert

By Kenneth A. Lambert

In basics OF PYTHON: FROM FIRST courses via info constructions, Washington and Lee college professor Kenneth A. Lambert provides all the vital themes in CS1 and CS2 in a single quantity. This most economical layout offers teachers with a constant method of instructing introductory programming and information buildings over a typical two-term direction series. The ebook makes use of the Python programming language, that is either effortless to benefit for newcomers and scales good to complex functions.

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Essential SQLAlchemy by Rick Copeland

By Rick Copeland

Essential SQLAlchemy introduces a high-level open-source code library that makes it more straightforward for Python programmers to entry relational databases equivalent to Oracle, DB2, MySQL, PostgreSQL, and SQLite. SQLAlchemy has develop into more and more renowned due to the fact its unlock, however it nonetheless lacks reliable offline documentation. This sensible ebook fills the distance, and since a developer wrote it, you get an goal examine SQLAlchemy's instruments instead of an advocate's description of all of the "cool" features.

SQLAlchemy contains either a database server-independent SQL expression language and an object-relational mapper (ORM) that allows you to map "plain outdated Python objects" (POPOs) to database tables with no considerably altering your present Python code. Essential SQLAlchemy demonstrates find out how to use the library to create an easy database program, walks you thru uncomplicated queries, and explains how you can use SQLAlchemy to hook up with a number of databases concurrently with a similar Metadata. you furthermore may learn the way to:

* Create customized kinds for use on your schema, and while it's necessary to take advantage of customized instead of integrated types
* Run queries, updates, and deletes with SQLAlchemy's SQL expression language
* construct an item mapper with SQLAlchemy, and comprehend the variations among this and lively checklist styles utilized in different ORMs
* Create items, store them to a consultation, and flush them to the database
* Use SQLAlchemy to version item orientated inheritance
* supply a declarative, lively checklist development to be used with SQLAlchemy utilizing the Elixir extension
* Use the SQLSoup extension to supply an automated metadata and item version according to database reflection

In addition, you'll learn the way and while to take advantage of different extensions to SQLAlchemy, together with AssociationProxy, OrderingList, and more.

Essential SQLAlchemy is the much-needed consultant for each Python developer utilizing this code library. rather than a feature-by-feature documentation, this ebook takes an "essentials" procedure that provides you precisely what you must turn into efficient with SQLAlchemy correct away.

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Python Programming Fundamentals (2nd Edition) (Undergraduate by Kent D. Lee

By Kent D. Lee

This easy-to-follow and classroom-tested textbook courses the reader throughout the basics of programming with Python, an available language which are discovered incrementally. good points: incudes a variety of examples and perform routines in the course of the textual content, with extra workouts, ideas and assessment questions on the finish of every bankruptcy; highlights the styles which regularly seem whilst writing courses, reinforcing the applying of those styles for problem-solving via perform routines; introduces using a debugger instrument to examine a application, permitting scholars to find for themselves how courses paintings and improve their figuring out; provides the Tkinter framework for construction graphical consumer interface purposes and event-driven courses; presents tutorial video clips and extra info for college kids, in addition to help fabrics for teachers, at an linked web site.

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Natural Language Processing: Python and NLTK by Nitin Hardeniya, Jacob Perkins, Deepti Chopra, Nisheeth

By Nitin Hardeniya, Jacob Perkins, Deepti Chopra, Nisheeth Joshi, Iti Mathur

Learn to construct specialist NLP and laptop studying tasks utilizing NLTK and different Python libraries

About This Book

  • Break textual content down into its part elements for spelling correction, function extraction, and word transformation
  • Work via NLP techniques with basic and easy-to-follow programming recipes
  • Gain insights into the present and budding examine issues of NLP

Who This ebook Is For

If you're an NLP or computing device studying fanatic and an intermediate Python programmer who desires to speedy grasp NLTK for usual language processing, then this studying direction will do you many of fine. scholars of linguistics and semantic/sentiment research execs will locate it invaluable.

What you'll Learn

  • The scope of usual language complexity and the way they're processed via machines
  • Clean and wrangle textual content utilizing tokenization and chunking that will help you method information better
  • Tokenize textual content into sentences and sentences into words
  • Classify textual content and practice sentiment analysis
  • Implement string matching algorithms and normalization techniques
  • Understand and enforce the strategies of knowledge retrieval and textual content summarization
  • Find out the right way to enforce a number of NLP initiatives in Python

In Detail

Natural Language Processing is a box of computational linguistics and synthetic intelligence that offers with human-computer interplay. It offers a continuing interplay among pcs and people and provides desktops the facility to appreciate human speech with assistance from computer studying. The variety of human-computer interplay circumstances are expanding so it truly is changing into central that desktops understand all significant common languages.

The first NLTK necessities module is an advent on the best way to construct platforms round NLP, with a spotlight on how one can create a personalized tokenizer and parser from scratch. you are going to examine crucial techniques of NLP, receive functional perception into open resource instrument and libraries to be had in Python, proven how one can examine social media websites, and receive instruments to accommodate huge scale textual content. This module additionally presents a workaround utilizing many of the striking features of Python libraries corresponding to NLTK, scikit-learn, pandas, and NumPy.

The moment Python three textual content Processing with NLTK three Cookbook module teaches you the basic innovations of textual content and language processing with easy, elementary examples. This comprises organizing textual content corpora, developing your individual customized corpus, textual content class with a spotlight on sentiment research, and dispensed textual content processing tools.

The 3rd studying average Language Processing with Python module can assist you turn into a professional and help you in growing your personal NLP initiatives utilizing NLTK. you'll be guided via version improvement with computing device studying instruments, proven tips on how to create education facts, and given perception into the simplest practices for designing and development NLP-based purposes utilizing Python.

This studying course combines the very best that Packt has to provide in a single entire, curated package deal and is designed that will help you quick study textual content processing with Python and NLTK. It contains content material from the next Packt products:

  • NTLK necessities by means of Nitin Hardeniya
  • Python three textual content Processing with NLTK three Cookbook by way of Jacob Perkins
  • Mastering common Language Processing with Python by way of Deepti Chopra, Nisheeth Joshi, and Iti Mathur

Style and approach

This entire direction creates a gentle studying direction that teaches you ways to start with average Language Processing utilizing Python and NLTK. you will discover ways to create powerful NLP and laptop studying initiatives utilizing Python and NLTK.

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Python for Unix and Linux System Administration by Noah Gift, Jeremy M. Jones

By Noah Gift, Jeremy M. Jones

Python is a perfect language for fixing difficulties, specially in Linux and Unix networks. With this pragmatic ebook, directors can assessment quite a few projects that regularly ensue within the administration of those platforms, and learn the way Python grants a extra effective and not more painful option to deal with them.

every one bankruptcy in Python for Unix and Linux procedure Administration offers a specific administrative factor, similar to concurrency or info backup, and offers Python strategies via hands-on examples. when you end this ebook, you'll be capable of enhance your personal set of command-line utilities with Python to take on a variety of difficulties. realize how this language might help you:

* learn textual content records and extract information
* Run initiatives at the same time utilizing the threading and forking options
* Get info from one technique to a different utilizing community facilities
* Create clickable GUIs to deal with huge and intricate utilities
* video display huge clusters of machines through interacting with SNMP programmatically
* grasp the IPython Interactive Python shell to interchange or increase Bash, Korn, or Z-Shell
* combine Cloud Computing into your infrastructure, and discover ways to write a Google App Engine Application
* remedy precise facts backup demanding situations with custom-made scripts
* have interaction with MySQL, SQLite, Oracle, Postgres, Django ORM, and SQLAlchemy

With this booklet, you'll find out how to package deal and installation your Python purposes and libraries, and write code that runs both good on a number of Unix systems. You'll additionally know about a number of Python-related applied sciences that may make your lifestyles a lot easier.

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ArcPy and ArcGIS: Geospatial Analysis with Python by Silas Toms

By Silas Toms

Use the ArcPy module to automate the research and mapping of geospatial info in ArcGIS

About This Book

  • Perform GIS research speedier by means of automating projects, similar to determining facts or buffering info, via getting access to GIS instruments utilizing scripting
  • Access the spatial facts contained inside of shapefiles and geodatabases, for updates, research or even transformation among spatial reference systems
  • Produce map books and automate the mapping of geospatial analyses, decreasing the time had to produce and exhibit the results

Who This publication Is For

If you're a GIS pupil or expert who wishes an knowing of ways to exploit ArcPy to minimize repetitive initiatives and practice research quicker, this booklet is for you. it's also a necessary ebook for Python programmers who are looking to know how to automate geospatial analyses.

In Detail

ArcGIS permits advanced analyses of geographic info. The ArcPy module is used to script those ArcGIS analyses, supplying a efficient technique to practice geo-analyses and to automate map production.

This e-book will advisor you from easy Python scripting to complicated ArcPy script instruments. This ebook begins with developing your Python setting, demonstrates a posh ArcPy script device with a number of iterations, illustrates information entry module cursors, and explains tips to use ArcPy Geometry sessions. Then, you are going to easy methods to output maps utilizing ArcPy.Mapping, and the way to create ArcGIS script tools.

With assistance from this booklet, it is possible for you to to create repeatable analyses lowering the time-consuming nature of GIS, making you right into a GIS specialist as strong as an entire team.

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Python in 24 Hours (2nd Edition) by Katie Cunningham

By Katie Cunningham

Publish yr note: First printing of second version (September 10, 2013).
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In simply 24 classes of 1 hour or much less, Sams train your self Python in 24 Hours can assist you start quickly, grasp the entire middle strategies of programming, and construct whatever from web pages to video games. utilizing this book's ordinary, step by step method, you'll flow from absolutely the fundamentals via features, items, sessions, modules, database integration, and extra.

Every lesson and case research program builds on what you've already discovered, providing you with a rock-solid beginning for real-world luck! step by step directions conscientiously stroll you thru the commonest Python improvement projects. Quizzes and routines on the finish of every bankruptcy assist you try your wisdom. Notes current attention-grabbing details relating to the dialogue. counsel provide recommendation or express you more uncomplicated how you can practice projects. Warnings warn you to attainable difficulties and provides you recommendation on tips on how to stay away from them.

Learn how to...
• set up and run the precise model of Python in your working procedure
• shop, control, reformat, mix, and set up details
• Create good judgment to manage how courses run and what they do
• have interaction with clients or different courses, anyplace they're
• shop time and increase reliability through growing reusable features
• grasp Python information forms: numbers, textual content, lists, and dictionaries
• Write object-oriented courses that paintings larger and are more straightforward to enhance
• extend Python periods to lead them to much more robust
• Use third-party modules to accomplish complicated initiatives with no writing new code
• cut up courses to lead them to extra maintainable and reusable
• essentially record your code so others can paintings with it
• shop facts in SQLite databases, write queries, and proportion facts through JSON
• Simplify Python internet improvement with the Flask framework
• speedy application Python video games with PyGame stay away from, troubleshoot, and attach issues of your code.

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scikit-learn Cookbook by Trent Hauck

By Trent Hauck

Python is instantly turning into the go-to language for analysts and knowledge scientists because of its simplicity and suppleness, and in the Python information area, scikit-learn is the unequivocal selection for computing device studying. Its constant API and plethora of positive factors support remedy any laptop studying challenge it comes across.

The booklet begins by means of jogging via diversified the right way to organize your data—be it a dataset with lacking values or textual content columns that require the types to be became indicator variables. After the information is prepared, you'll research various ideas aligned with assorted objectives—be it a dataset with recognized results equivalent to revenues by way of kingdom, or extra complex difficulties comparable to clustering related consumers. ultimately, you'll the best way to polish your set of rules to make sure that it's either exact and resilient to new datasets.

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Python Data Analytics: Data Analysis and Science Using by Fabio Nelli

By Fabio Nelli

Python info Analytics can help you take on the realm of knowledge acquisition and research utilizing the facility of the Python language. on the middle of this publication lies the assurance of pandas, an open resource, BSD-licensed library supplying high-performance, easy-to-use information buildings and information research instruments for the Python programming language.
Author Fabio Nelli expertly indicates the power of the Python programming language while utilized to processing, coping with and retrieving details. within, you will see that how intuitive and versatile it truly is to find and speak significant styles of information utilizing Python scripts, reporting platforms, and information export. This e-book examines how one can pass approximately acquiring, processing, storing, dealing with and interpreting information utilizing the Python programming language.
You will use Python and different open resource instruments to wrangle facts and tease out fascinating and significant developments in that info that might let you expect future

styles. even if you're facing revenues info, funding information (stocks, bonds, etc.), clinical facts, online page utilization, or the other kind of info set, Python can be utilized to interpret, learn, and glean info from a pile of numbers and statistics. 

This booklet is a useful reference with its examples of storing and having access to information in a database; it walks you thru the method of document new release; it presents 3 genuine global case reviews or examples that you should take with you in your daily research needs.

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