Fun With Your Zip Program: Sort Through Texts, and More: “To demonstrate this, the researchers used a zip program to compress a text written in one language. They then appended to the original text some text written in Italian or another language and compressed that document. As predicted, the compression program did not do as good a job when the languages of the two texts were different. They tried the same trick on a group of texts all written in Italian, but by a variety of different authors. They found they could distinguish between the authors more than 90 percent of the time.”

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