We propose a classiication of measures enabling to compare fuzzy characterizations of objects, according to their properties and the purpose of their utilization. We establish the diierence between measures of satissability, resemblance, inclusion and dissimilarity. We base our study on concepts analogous to those developed by A. Tversky for his general work on similarities.

Article history: Received 18 June 2013 Received in revised form 18 August 2015 Accepted 21 September 2015 Available online 30 September 2015

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The highly influential framework of conceptual spaces provides a geometric way of representing knowledge. Instances are represented by points in a similarity space and concepts are represented by convex regions in this space. After pointing out a problem with the convexity requirement, we propose a formalization of conceptual spaces based on fuzzy star-shaped sets. Our formalization uses a para...

PURPOSE OF THE STUDY This study explores (a) whether retirees' formal volunteer experiences represent an extension of their career in the paid workforce; and (b) how this integration of life roles affects career self-concept, as interpreted through Donald Super's life-span, life-space theory of career development. DESIGN AND METHODS A survey was conducted involving a Canadian sample of 214 in...

Article history: Received 16 October 2014 Received in revised form 17 December 2014 Accepted 30 December 2014 Available online 9 January 2015

This paper presents a project that aims to develop a collaborative Concept Map Editor that will provide the necessary functionality to be used by multicultural teams.

This survey presents crisp and fuzzy models developed for the Supply Chain (SC). To this end, fuzzy concepts are first briefly reviewed. Then the structure of a supply chain system is explained. Recent challenges and ideas on these systems are also surveyed. Then, with reference to different aspects of an SC system, we classify the recent fuzzy models developed for different SC systems and comp...

Little is known of nurses' self-concept in light of their professional identity or as working adults. This article explores the development and rigorous testing of a new self-concept instrument designed specifically for nurses. The new measure is based on the self-concept measurement theory of Shavelson, Hubner, and Stanton. An expert panel was used to critique and aid refinement of the measure...