Here's ChatGPT's take on it for what it's worth 😂:
Yes, the notation you're looking for is "top k argmax". It's a common notation used in machine learning and optimization.
Formally, if you have a function f(x) over a set X, the top k argmax of f(x) is the set of k elements in X that maximize f(x). The notation is usually written as:
argmax_{x\in X} f(x) = {x_1, x_2, ..., x_k}
where x_1, x_2, ..., x_k are the k elements in X that maximize f(x).
Note that if k=1, then the top k argmax reduces to the usual argmax notation.
bpw1009 t1_jbz4d57 wrote
Reply to [D] What's the mathematical notation for "top k argmax"? by fullgoopy_alchemist
Here's ChatGPT's take on it for what it's worth 😂:
Yes, the notation you're looking for is "top k argmax". It's a common notation used in machine learning and optimization.
Formally, if you have a function f(x) over a set X, the top k argmax of f(x) is the set of k elements in X that maximize f(x). The notation is usually written as:
argmax_{x\in X} f(x) = {x_1, x_2, ..., x_k}
where x_1, x_2, ..., x_k are the k elements in X that maximize f(x).
Note that if k=1, then the top k argmax reduces to the usual argmax notation.