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How to use an NLTK part-of-speech tagger
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By adfm
: 17 February 2010 - 02:05 PM
Tagging follows tokenization in the typical natural language processing pipeline. In this excerpt from Natural Language Processing with Python the authors introduce a part-of-speech tagger. The exampl...
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How to build a simple web crawler
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By adfm
: 16 February 2010 - 12:34 PM
If you're creating a search engine you'll need a way to collect documents. In this excerpt from Tony Segaran's Programming Collective Intelligence the author shows you how to set up a simple web crawl...
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How to Find Similar Users with Python
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By adfm
: 08 February 2010 - 06:00 PM
Collaborative filtering techniques enable online retailers to recommend products, services, and media for the majority of commercial websites you visit daily. When you purchase something at Amazon....
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Perl and Python manipulation of Excel files ( and Numbers too)
Asked by donfox : 31 January 2010 - 06:03 PM
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Answered by adfm
: Feb 05 2010 10:50 AM
If you are interested in comparing how others have accomplished manipulating an Excel spreadsheet using each language, then I would refer you to this article about reading and writing Excel files with... full answer >
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How to remove duplicate lines with regular expressions
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By StevenLevithan
: 30 October 2009 - 08:35 AM
There is a variety of software (including the Unix command-line utility uniq and Windows PowerShell cmdlet Get-Unique) that can help you remove duplicate lines in a file or ...
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Why use built-in types in Python?
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By juliesteele
: 02 October 2009 - 09:07 AM
If you've used lower-level languages such as C or C++, you know that much of your work centers on implementing objects—also known as data structures—to represent the components in your applica...
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How to Match IPv4 Addresses with Regular Expressions
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By Jan Goyvaerts
: 30 September 2009 - 01:11 PM
If you want to check whether a certain string represents a valid IPv4 address in 255.255.255.255 notation, try one of these examples from Regular Expressions Cookbook: Simple regex to check fo...
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How to validate traditional date formats with regular expressions
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By Jan Goyvaerts
: 18 September 2009 - 12:45 PM
If you want to validate dates in the traditional formats mm/dd/yy, mm/dd/yyyy, dd/mm/yy, and dd/mm/yyyy, using a simple regex that simply checks whether the input looks ...
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How to create regular expression objects
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By Jan Goyvaerts
: 18 September 2009 - 10:51 AM
If you want to instantiate a regular expression object or otherwise compile a regular expression so you can use it efficiently throughout your application, try one of t...
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