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February 2008 Archives

February 20, 2008

How to browse the Internet perfectly anonymously

Related website: Pippini.com
"Tell me Mr. Jones," said the public prosecutor, "All the evidence points to the fact that you were indeed contemplating the murder of your lover on that night. Were you not? Remember that you are under oath, and that your polygraph results have betrayed your innermost thoughts. You had the motive, ability and, in your judgment, sufficient anonymity to carry out the macabre act with impunity. And I admit that were it not for this mass of incontrovertible evidence we uncovered by following your intent, you might well have succeeded in pulling the wool over our eyes! Is this not what you are thinking?"
There it is. Fragment from a mystery novel as it were, when you gauge your own mental reaction as you read the passage, you will find it to be a clear example: Most reasonable people would not think twice about sanctioning techniques, including the administration of polygraph tests, that authorities may use to probe into and conclude on the conents of that innermost repository of our private thoughts - our mind. Yet, it appears unreasonable to most of us if authorities claim to have the ability, much less to use it, to determine probable intent in criminal behavior from one's behavior on the Internet. Is the Internet that different in people's perceptions as a place where absolute anonymity may be enjoyed regardless of disposition and intent? Indeed, do people honestly believe it is ok to probe one's mind, but not one's online behavior?

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February 22, 2008

Calculating the median of a MySql table column

My staff are amazingly efficient at automating the various slices and dices of data for me. They like to do it in SQL scripts, MySql in specific, and as a consequence, the data I want to look at is automatically generated every night into various MySql tables. I, in turn, have my own scripts, and ye old console, to extract the information I want. However, one issue that bugged me early on was getting at the median of a set of numbers.

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