Showing 1 - 9 of 9
Traditionally, recommender systems present recommendations in lists to the user. In content- and knowledge-based recommendation systems these list are often sorted on some notion of similarity with a query, ideal product specification, or sample product. However, a lot of information is lost in...
Persistent link: https://www.econbiz.de/10010731146
We construct a weighted Euclidean distance that approximates any distance or dissimilarity measure between individuals that is based on a rectangular cases-by-variables data matrix. In contrast to regular multidimensional scaling methods for dissimilarity data, the method leads to biplots of...
Persistent link: https://www.econbiz.de/10010849612
Perceptual maps have been used for decades by market researchers to illuminate them about the similarity between brands in terms of a set of attributes, to position consumers relative to brands in terms of their preferences, or to study how demographic and psychometric variables relate to...
Persistent link: https://www.econbiz.de/10005070435
Graphical displays which show inter--sample distances are important for the interpretation and presentation of multivariate data. Except when the displays are two--dimensional, however, they are often difficult to visualize as a whole. A device, based on multidimensional unfolding, is described...
Persistent link: https://www.econbiz.de/10005572586
This paper establishes a general framework for metric scaling of any distance measure between individuals based on a rectangular individuals-by-variables data matrix. The method allows visualization of both individuals and variables as well as preserving all the good properties of principal axis...
Persistent link: https://www.econbiz.de/10005772207
Subcompositional coherence is a fundamental property of Aitchison’s approach to compositional data analysis, and is the principal justification for using ratios of components. We maintain, however, that lack of subcompositional coherence, that is incoherence, can be measured in an attempt to...
Persistent link: https://www.econbiz.de/10005704866
We construct a weighted Euclidean distance that approximates any distance or dissimilarity measure between individuals that is based on a rectangular cases-by-variables data matrix. In contrast to regular multidimensional scaling methods for dissimilarity data, the method leads to biplots of...
Persistent link: https://www.econbiz.de/10010682977
The concept of development is not only referred to the level or to the growth rate of GDP of a country, but it concerns different aspects of individual and social life. Development leads to a changing of values, culture, behaviours and attitudes of people interested in it. That is to say that...
Persistent link: https://www.econbiz.de/10010617433
This paper presents a theoretically based, multidimensional and comparable measurementof social cohesion applicable in 47 European countries using the most recent micro-level data of European Value Study (EVS) from 2008. The analysis is conducted in four steps. In the first part, we create a set...
Persistent link: https://www.econbiz.de/10008804703