Encyclopedia of machine learning and data mining

Intro; Preface; Contributors; A; A/B Testing; Abduction; Definition; Motivation and Background; Structure of the Learning Task; Abduction in Artificial Intelligence; Abductive Concept Learning; Abduction and Induction; Abduction in Systems Biology; Cross-References; Recommended Reading; Absolute Error Loss; Accuracy; Definition; Cross-References; ACO; Actions; Active Learning; Definition; Structure of Learning System; Related Problems; Active Learning Scenarios; Constructive Active Learning; Pool-Based Active Learning; Stream-Based Active Learning; Other Forms of Active Learning;Annotation