In [23], Valiant proposed a formal framework for distribution-free concept learning which has generated a great deal of interest. A fundamental result regarding this framework was proved by Blumer et al. [6] characterizing those concept classes which are learnable in terms of their Vapnik-Chervonenkis (VC) dimension. More recently, Benedek and Itai [4] studied learnability with respect to a fix...

This research study reports on the use of concept maps as an assessment tool to investigate elementary pre-service teacher knowledge about dissolving. Propositions from pre/post concept maps were scored using the total proposition accuracy scoring technique (TPA) and were also used to classify concepts as scientific or spontaneous using Vygotsky’s theory of concept development. Vygotsky (1986) ...

The classical account of concepts within philosophy is Aristotle’s theory of necessary and sufficient conditions (see [19] for a presentation of this and other theories of concept formation). His view on how concepts are determined has had an enormous influence throughout the history of philosophy. During this century, the Aristotelian notions became part of the program of the logical positivis...

Purpose: Becoming and being a nurse is vaguely conceptualized, so it important for nurses to understand the defining attributes, antecedents, consequences, model cases, empirical referents of professional identity with aim better understanding process its formation.