Tag: Metric

The upshot there was the MSE is rubbish for model evaluation but wonderful for optimization. The goal of performance evaluation is for a person (you, me, whoever) to read a score and understand something about our model. The goal of model optimization is for a machine to determine what the...

Assume that (X,d,μ) is a metric space endowed with a non-negative Borel measure μ satisfying the doubling condition and the additional condition that μ(B(x,r))???rn for any x∈X,r>0 and some n≥1. Let L be a non-negative self-adjoint operator on L2(X,μ). We assume that e−t...

There is a strong belief that code coverage is a strong metric to measure the quality of a software product, a belief that’s been shared without question among tech leaders for many years. Its rationale seems sound on the surface: the more thorough the testing, the higher the code coverage, an...