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Equation 8 · Part 1 · How AI for Science and Medicine Actually Works

Symbol N

N(v)\mathcal{N}(v)
N\mathcal{N}

What this part means

N is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

N is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

…propagate across the globe within a single forward pass; a decoder then reads the updated mesh back out to the original grid to produce the forecast. In general form, a message-passing update for a node v with neighbours N(v)\mathcal{N}(v) looks like

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Learn the underlying idea

A function assigns an output to each allowed input. The expression f(x) means “apply f to x”.

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Sources cited in the article section

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