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Yep. Second formulae and I'm out of my league. Is it just me that gets frustrated when things aren't explained? What do I have to study to be able to read this
by keont 9y ago
Yep. Second formulae and I'm out of my league. Is it just me that gets frustrated when things aren't explained? What do I have to study to be able to read this
θ∗,ψ∗←argminθ,ψg(θ,ψ)
With no prior explanation and say, yep, now that you put it that way, it's true?
- pedrosorio 9y agoNotation is notation. I think it's hard to come up with a single guide because a lot of conventions depend on the area. In the context of optimization, a star refers to the value of the variable that minimizes (or maximizes) a function you're interested in. You will also see a hat over a variable (https://en.wikipedia.org/wiki/Hat_operator#Estimated_value https://en.wikipedia.org/wiki/Hat_operator#Estimated_value) sometimes (from statistics) which is an estimate of some quantity from data (and that estimate may be obtained by minimizing a function - solving an optimization problem) By the way, this is the first result when googling argmin: https://en.wikipedia.org/wiki/Arg_max https://en.wikipedia.org/wiki/Arg_max
- zardo 9y agoThis isn't a formula that is 'true', it's a minimally specified program. It takes a function g, and returns the values of it's arguments (theta and psi) that minimize the function g.
- master_yoda_1 9y agoThis might help https://en.wikipedia.org/wiki/List_of_mathematical_symbols https://en.wikipedia.org/wiki/List_of_mathematical_symbols