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Barriers to Internet use

by Dennis Westphal

Even the best screen reader will fail on the web due to hurdles such as language changes, dialogue boxes, captchas and hyphenation if they are poorly displayed.

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Time series analysis

Time series analysis

by Iavor Jelev

Data collected on a regular basis can be evaluated automatically: analyzed trends and cycles are cleansed of anomalies and predictions are possible.

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Using GnuPG correctly

by Ben Rösler

Encryption with GnuPG (GNU Privacy Guard) and PGP (Pretty Good Privacy) is only secure if the tools are configured and used correctly.

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Introduction to Machine Learning

by Iavor Jelev

Machines learn from humans by learning like humans - through practice and experience. This can be done in a supervised or unsupervised manner.