# Statistics/Data Mining Dictionary

Statisticians and computer scientists often use different languages for the same thing. [...]

StatisticsComputer ScienceMeaningestimation learning using data to estimate an unknown quantity classification supervised learning predicting a discrete YfromXclustering unsupervised learning putting data into groups data training sample {X_{1}, Y_{1}},...,{X_{n}, Y_{n}}covariates features the X's_{i}classifier hypothesis a map from covariates to outcomes hypothesis --- subset of a parameter space Θconfidence interval --- interval that contains an unknown quantity with a given frequency directed acyclic graph Bayes net multivariate distribution with given conditional independence relations Bayesian inference Bayesian inference statistical method for using data to update beliefs frequentist inference --- statistical methods with guaranteed frequency behavior large deviation bounds PAC learning uniform bounds on probability of errors

from "All of Statistics: A Concise Course in Statistical Inference"

Quoted on Sat Sep 14th, 2013