M. Tim Jones

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An introduction to data science, Part 1: Data, structure, and the data science pipeline

Data is meaningless if you can't process it to gain insights. The field of data…

Cleansing, processing, and visualizing a data set, Part 2: Gaining invaluable insight from clean data sets

Learn about VQ and ART algorithms. VQ quickly and efficiently clusters a data set; ART…

Cleansing, processing, and visualizing a data set, Part 1: Working with messy data

Discover common problems associated with cleansing data for validation and processing, with solutions for dealing…

Fight against SQL injection attacks

In the world of security exploits, one vulnerability, although easily resolved, is number one on…

Hadoop data security and Sentry

Given the insights possible with big data, privacy fears have been the primary focus of…

Extract information from the web with Ruby

Explore the latest methods for extracting structured information from the web. Using Ruby script examples,…