Tag Archives: fuzzy logic

Hard Boundaries, Soft Boundaries

Computer scientists use filters, ≥ signs, intersections (sql), and other forms of what I would call “hard boundaries”. Grep either finds what you’re looking for, or it doesn’t.  The condition inside your while(){ loop either trips true and the interior code … Continue reading

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I learned about Zadeh’s fuzzy logic when I was a graduate student…despite the intrinsic interest of the idea, there didn’t seem to be any really impressive results…. When I first heard about “fuzzy logic” control systems (…about 20 years ago … Continue reading

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Briefly: the linear regression model. We suppose we can explain or predict y using a vector of variables x. As in Gauß’ estimation theory, y is supposed to be unobservable, and thus has to be estimated. The assumption that y … Continue reading

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Fuzzy Logic Not everything is so simple as true or false. Even declarative statements may evaluate outside {0,1}. So let’s introduce the kind-of: truth ∈ [0,1]. Examples of non-binary declarative statements: Shooting trap, my bullet nicked the clay pigeon but didn’t … Continue reading

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Clouds

You can see the “edge” of a cloud from far away so it should be obvious what ∂cloud means. But up close (from an airplane) you can see there is no edge. The mist fades gradually into blue sky. Here’s another job … Continue reading

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Leonardo da Vinci’s ability to embrace uncertainty, ambiguity, and paradox was a critical characteristic of his genius. —J Michael Gelb Say you want to use a mathematical metaphor, but you don’t want to be really precise. Here are some ways … Continue reading

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