Use of Agents to Realize a Federated Searching of Learning Objects

Muñoz-Arteaga, Jaime; Calvillo-Moreno, Edgar A.; Ochoa, Alberto; Salgado, René Santaolaya; Álvarez-Rodríguez, Fco.

doi:10.1007/978-3-642-12433-4_1

Cited by 5 publications

(1 citation statement)

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“…The success of the location of digital resources depends heavily on the quality with which the metadata is designed [48]. This factor is essential to obtain relevant search results from the use of search engines defined in a repository [49,50]. On the other hand, the quality of metadata is important for improving indexing strategies of learning objects stored in them [16,40,51].…”

Section: Limitations Associated With the Quality Of Metadatamentioning

confidence: 99%

Issues of Visual Search Methods in Digital Repositories

Gaona-García¹,

Montenegro-Marín²,

Gaona-García³

et al. 2018

IJIMAI

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Repositories are important infrastructures which allow the dissemination of large collections of digital resources hosted in museums, libraries, academic institutions or specialized documentation centers. However, there are nowadays several limitations associated with irrelevant search results based on a knowledge area. Some studies have highlighted the major role of information visualization strategies based on Simple Knowledge Organization Systems (SKOS) so as to mitigate such difficulties. The main goal of this article is to present recommendations using information visualization based on SKOS for the development of navigational search interfaces in digital repositories focused on learning process. We use card sorting as methodology in order to obtain qualitative results in our study. As preliminary results we found that taxonomies in visual search engines improve the access to large collections of digital resources based on SKOS, but it depends on the design of taxonomy concepts defined in digital repositories. Finally, it is recommended that the creators of repositories focus their efforts on define levels of relationship and partnership between digital resources using knowledge representation structures like thesauri or ontologies; work with usable visualization interfaces like tree, radial or icicle; and link relevant metadata fields with the navigation structure.

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Section: Limitations Associated With the Quality Of Metadatamentioning

confidence: 99%

Issues of Visual Search Methods in Digital Repositories

Gaona-García¹,

Montenegro-Marín²,

Gaona-García³

et al. 2018

IJIMAI

View full text Add to dashboard Cite

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Visual analytics of Europeana digital library for reuse in learning environments

Gaona-García

Sánchez‐Alonso

García

2017

OIR

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Purpose The purpose of this paper is to assess whether Europeana can be really seen as the new “Library of Alexandria” for digital resources from the perspective of teachers, academics and researchers that might want to retrieve and reuse those resources for learning purposes. Design/methodology/approach The authors define a systematic method for studying Europeana digital resources and their potential for reuse in e-learning environments. To achieve this, the authors explore the coverage of digital resources when searching information about a specific area. The paper studies the relevance of the results (thematic coverage) provided by queries targeting the resources’ metadata elements defined by the EDM Europeana model. All the data collected for this study from Europeana digital resources are the result of four explorations since 2012-2016. Findings The autors found that Europeana as a digital library has good levels of coverage of digital resources for those terms in the AAT thesaurus explored (terms from the “Styles and Periods” subset). This subset was selected as an example of faceted search given that it is a common search topic in the academic environment. However, it is important to remark the use of common vocabulary words provided by participants in order to obtain relevant results of search based on specific knowledge areas defined by AAT terms. Research limitations/implications This research used a relatively small sample size of resources which may not be representative of the general size of Europeana digital resources. However, the results are illustrative as they are based on a specific knowledge area of AAT (118 terms) which contains very common topics used in high school courses by students and teachers in the field of art and cultural heritage. The study also aspires to provide a systematic method for conducting future studies in other knowledge areas. Originality/value The coverage study aims to analyze if Europeana is a digital library that teachers could use for the development of learning objects in specific knowledge areas, through the reuse of free/open access digital resources.

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