Monday, September 5, 2011

Quantum minds: Why we think like quarks - life - 05 September 2011 - New Scientist

Quantum minds: Why we think like quarks: ...the mathematics they had been building into search engines was essentially the same as that of quantum theory...


Widdows has found that a negation based on quantum logic works much better. Interpreting "not" in the quantum sense means taking "songs" as an arrow in a multidimensional Hilbert space called semantic space, where words with the same meaning are grouped together. Negation means removing from the search pages that shares any component in common with this vector, which would include pages with words like music, guitar, Hendrix and so on. As a result, the search becomes much more specific to what the user wants.

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