Usually, data quality is defined by multiple attributes that allow classifying the output (such as completeness, freshness, and accuracy) or methods exploiting these dependability, performance, protection). Among suggested attributes, we will discuss one of principal categories: accuracy. Scientific experiments, decisionmaking, retrieval are examples situations require a formal evaluation appro...

We have seen that the accuracy of methods for computing integrals or derivatives of a function f(x) depends on the spacing between points at which f is evaluated, and that the approximation tends to the exact value as this spacing tends to 0. Suppose that a uniform spacing h is used. We denote by F (h) the approximation computed using the spacing h, from which it follows that the exact value is...