lenovo_thinkpad

Lenovo Thinkpad T400 wireless problems

The built-in wireless for the Thinkpad T400 gave me endless issues on Vista. Everything works perfectly for a while.  Then all of a sudden it doesn’t work, and worst of all…  nothing I do from the Vista network configuration windows …

puzzle_pieces

Top 10 differences between Java and C#

My latest transition from Java to C# left me scratching my head and scrambling to find the differences. Don’t get me wrong — they are very similar. But some key syntax and philosophical differences set these two languages apart.  Below …

wordcloud

History of data mining

Data mining is everywhere, but its story starts many years before Moneyball and Edward Snowden. The following are major milestones and “firsts” in the history of data mining plus how it’s evolved and blended with data science and big data. Data mining is the computational …

keyboard

Acer Aspire One Slow?

The Acer Aspire One netbook running Windows 7 Starter Edition won’t win any performance benchmarks.  However, you can greatly improve this netbook’s responsiveness with some targeted tweaking. DISCLAIMER: Some of the tips mentioned below potentially leave your system vulnerable.  Although …

smartphone

Get media content now – SOLVED

I got an SMS a few days ago with a Get media content now hyperlink. Here’s how to view it. If I press the hyperlink, the text appears to change for a moment like it’s downloading something, but then it plays a …

thermometer

How to convert Fahrenheit to Celsius?

Converting Fahrenheit to Celsius doesn’t require a calculator. Here are some easy-to-remember temperatures if you’re accustomed to Fahrenheit temperatures… Fahrenheit to Celsius formula: (F-32) * 5 / 9 = C Celsius to Fahrenheit formula: C * 9/5 + 32 = F …

C4.5 data mining algorithm

C4.5 data mining algorithm in plain english

The C4.5 data mining algorithm is part of a longer article about many more data mining algorithms. C4.5 constructs a classifier in the form of a decision tree. In order to do this, C4.5 is given a set of data representing …