Search results for " retrieval."
showing 10 items of 1102 documents
A relevance feedback CBIR algorithm based on fuzzy sets
2008
CBIR (content-based image retrieval) systems attempt to allow users to perform searches in large picture repositories. In most existing CBIR systems, images are represented by vectors of low level features. Searches in these systems are usually based on distance measurements defined in terms of weighted combinations of the low level features. This paper presents a novel approach to combining features when using multi-image queries consisting of positive and negative selections. A fuzzy set is defined so that the degree of membership of each image in the repository to this fuzzy set is related to the user's interest in that image. Positive and negative selections are then used to determine t…
On some flaws of university rankings: The example of the SCImago report
2012
International audience; Using France as our main example, we show there is a much scope for improving the SCImago ranking. We detect problems of nomenclature, double affiliation, aggregation and of bias toward large public-funded research organizations. The output per scholar is more important than the output per organization. The examples we cite suggest that only detailed knowledge of the situation can help in addressing the issue and take us beyond any automatic reading of the metadata.
Does relevance matter to data mining research?
2008
Data mining (DM) and knowledge discovery are intelligent tools that help to accumulate and process data and make use of it. We review several existing frameworks for DM research that originate from different paradigms. These DM frameworks mainly address various DM algorithms for the different steps of the DM process. Recent research has shown that many real-world problems require integration of several DM algorithms from different paradigms in order to produce a better solution elevating the importance of practice-oriented aspects also in DM research. In this chapter we strongly emphasize that DM research should also take into account the relevance of research, not only the rigor of it. Und…
Explorando la divulgación de información integrada por universidades colombianas. Un análisis de páginas web basado en el marco del IIRC
2021
La información integrada se presenta como un fenómeno de reciente auge que permite a diversas organizaciones informar de una manera simplificada pero completa sobre su gestión respecto a diversos tipos de capitales. Aunque predominantemente se ha desarrollado en las empresas privadas, en el ámbito internacional viene reconociéndose que otro tipo de organizaciones como las universidades, divulgan esta información o cuentan con la necesidad y el potencial para ello. Este trabajo tiene como objetivo analizar en qué medida la información solicitada para construir un reporte integrado de acuerdo con los requerimientos del Marco Conceptual del IIRC, ya está revelada en internet por las universida…
Entrepreneurial universities: A bibliometric analysis within the business and management domains
2021
Abstract This study presents a bibliometric analysis of scientific publications investigating entrepreneurial universities in the business and management fields. The authors collected 511 documents from the Web of Science and analysed them using Bibliometrix, an RStudio package for performance analysis and science mapping. The study aims to provide an overview of the evolution of research about this topic and describe the structures (i.e., conceptual, social, and intellectual) characterising it. It discusses the results to identify the main areas addressed so far and highlight gaps in the literature, offering avenues for possible future research. The results show that publications on entrep…
Intrapreneurs: Characteristics and Behavior
2017
Intrapreneurship has become a relevant topic in literature as far as its impact on organizational performance is more and more often highlighted from very diverse points of view. The main goal of this chapter is introducing the specific personal and professional profile of intrapreneurs, considered as highly committed individuals motivated by innovation, continuous improvement and able to leader teams in the direction they foresee within the companies in which they work. This chapter will present the relevance and impact of intrapreneurship, the role and main characteristics of the intrapreneurs, their behavior and motivations, and finally some good practices will be exposed in order to enc…
A Barrier Framework for open E-Learning in public administrations
2015
A comprehensive literature review on E-Learning and OER in public administrations.A contextualized Barrier Framework about core barriers in the public sector.Lessons learned to improve implementation and adoption processes of open E-Learning.The relevance of organizational, social and technical barriers in the public sector. E-Learning and openness in education are receiving ever increasing attention in businesses as well as in academia. However, these practices have only to small extent been introduced in public administrations. The study addresses this gap by presenting a literature review on Open Educational Resources OER and E-Learning in the public sector. The main goal of the article …
FCA-based knowledge representation and local generalized linear models to address relevance and diversity in diverse social images
2019
Abstract In social image retrieval, the main goal is to offer a relevant but also diverse result set of images to the user. To address relevance and diversity at the same time, we propose a multi-modal procedure. This approach deals with the diversification problem using a two-step procedure based on the application of Formal Concept Analysis (FCA) to organize the text content of the images, followed by a Hierarchical Agglomerative Clustering (HAC) step to find the topics addressed by the images. FCA detects the latent concepts covered by the images in the result set, organizing them according to these concepts. In the second step, clustering is carried out to group together the ones with a…
Teacher education programmes in physical education and sport at master’s level: Opportunities and challenges
2021
I denne artikkelen undersøker vi fremtidige muligheter og utfordringer i femårige lærerutdanninger i kroppsøving og idrettsfag på masternivået, i lys av kvalitet og relevans for fagfeltet. I undersøkelsen ble det benyttet en kvalitativ tilnærming med to metodiske innganger. Først ble et utvalg på 96 masteroppgaver i perioden 2015–2018 innenfor fagfeltet kroppsøving og idrettsfag brukt for å undersøke hva slags tematikker, teoretiske tilnærminger og metoder som er benyttet i masteroppgavene. Med bakgrunn i denne undersøkelsen ble det gjennomført en workshop med et utvalg lærerutdannere for å få innsikt i hva de oppfattet som fremtidige muligheter og utfordringer i femårig lærerutdanning i fa…
Feature Ranking of Large, Robust, and Weighted Clustering Result
2017
A clustering result needs to be interpreted and evaluated for knowledge discovery. When clustered data represents a sample from a population with known sample-to-population alignment weights, both the clustering and the evaluation techniques need to take this into account. The purpose of this article is to advance the automatic knowledge discovery from a robust clustering result on the population level. For this purpose, we derive a novel ranking method by generalizing the computation of the Kruskal-Wallis H test statistic from sample to population level with two different approaches. Application of these enlargements to both the input variables used in clustering and to metadata provides a…