Wednesday, May 20, 2009

Detecting babies' thoughts

A.Gopnik writes that it is impossible to know what babies think. So, rather than solving this impossible detection problem, which requires an incredible level of precision, researches decided to solve a much simpler "binary" recognition problem(p.27):

"How can we say we actually know what babies think? With help of videotape, scientists have developed ingenious experimental techniques to ask babies what they know. One whole set of techniques has been designed to answer two simple questions: Do babies think that two things are the same or different? And if they think they're different, do they prefer one to the other?"

Note that binary detection systems are the most coarse of all. Love vs Hate. Black vs White. Good vs Evil. 0 vs 1. At this early stage, the goal is to make a basic distinction, because a fine-grained understanding is either impossible or undesirable. Politicians use this clever approach during elections campaigns by giving voters simple choices: Are you for or against? Are you a Republican or a Democrat? etc.

No comments: