198 research outputs found

    Evaluation of usage patterns for web-based educational systems using web mining

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    Virtual courses often separate teacher and student physically from one another, resulting in less direct feedback. The evaluation of virtual courses and other computer-supported educational systems is therefore of major importance in order to monitor student progress, guarantee the quality of the course and enhance the learning experience for the student. We present a technique for the usage evaluation of Web-based educational systems focussing on behavioural analysis, which is based on Web mining technologies. Sequential patterns are extracted from Web access logs and compared to expected behaviour

    Data mining technology for the evaluation of web-based teaching and learning systems

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    Instructional design for Web-based teaching and learning environments causes problems for two reasons. Firstly, virtual forms of teaching and learning result in little or no direct contact between instructor and learner, making the evaluation of course effectiveness difficult. Secondly, the Web as a relatively new teaching and learning medium still requires more research into learning processes with this technology. We propose data mining – techniques to discover and extract knowledge from a database – as a tool to support the analysis of student learning processes and the evaluation of the effectiveness and usability of Web-based courses. We present and illustrate different data mining techniques for the evaluation of Web-based teaching and learning systems

    An evaluation technique for content interaction in web-based teaching and learning environments

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    Interactivity is a central element in teaching and learning. The Web as a new educational platform enables new forms of teaching and learning. The consequence for the Web – a constantly evolving environment that provides less direct feedback – is the importance of evaluation. In particular the learners’ interaction with the Web-based multimedia features is central. We propose Web usage mining, a technology that has already been used to analyse e-commerce Web sites, in conjunction with an analytic model as the evaluation approach

    Living Labs: A Bibliometric Analysis

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    The objective of this study is to understand how Living Lab(s) (LL) as a concept and research approach has developed, proliferated and influenced scholarly research to date. The goal is in assisting both the LL and Action Design Research (ADR) communities in advancing both fields by establishing understanding, commonalities and challenges in advancing both research agendas. We adopt a bibliometric methodology to understand the scholarly impact, contribution and intellectual structure of LL as a new approach to innovation. We conclude with recommendations on advancing both ADR and LL fields of research, highlighting that increased cross-collaboration going forward offers clear opportunities to both fields

    Positioning living labs within action design research: preliminary findings from a systematic literature review

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    In recent years, Living Labs (LLs) are emerging as relevant design methodologies among IS researchers. Prior research leveraged Action Design Research (ADR) to position LLs within this discipline. Through a systematic literature review, this paper proposes the positioning of LLs’ methodologies within ADR. Based on preliminary findings of this study, we argue that, whilst LL’s offer an opportunity to advance learning in ADR in several ways, some critical divergences can be identified in the literature to-date between the two methodologies

    Systematic analysis of digitally enabled services for Sustainable Connected Cities

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    The investigation on the relationships between digital technologies and the city is more and more acknowledged as a research challenge among Information Systems researchers. As part of an Action Design Research project aiming at the development of a Capability Maturity Framework for Sustainable Connected Cities, this research in progress paper presents a systematic analysis of digitally-enabled services in this context. A taxonomy of services that have a potential positive impact on cities’ socio-economical and environmental sustainability is proposed. The KJ (Kawakita Jiro) method, which ingrains Grounded Theory’s and Affinity Diagrams’ principles, was applied to reach this scope. This project is being conducted by a consortium that involves representatives from academia, industry, and public authority

    Synchronous Urothelial Carcinoma of the Bladder and Urachal Adenoma with Subsequent Malignant Transformation

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    Malignant transformation of urachal adenoma is exceedingly rare, with intestinal metaplasia as the most common contributing mechanism. It is recommended that a urachal adenoma be regarded as a pre-malignant condition and be subject to endoscopic surveillance. A local en block excision of the tumor mass with urachalectomy and umbilectomy results in possible long-term survival. The median survival after platinum-based chemotherapy is limited for patients with extravesical disease. Here we report a case of synchronous urothelial carcinoma of the bladder and urachal adenoma that transformed into adenocarcinoma

    Chlamydia on children and flies after mass antibiotic treatment for trachoma.

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    There are various approaches to control trachoma. These include the elimination of the ocular strains of Chlamydia trachomatis that cause the disease and to decrease the spread of infection by other measures such as fly control. Here, we examined how these two are related (i.e., how treating children with antibiotics affects carriage of Chlamydia by flies). Flies were collected in villages that had received mass oral azithromycin distribution and were compared with flies in untreated villages. Polymerase chain reaction (PCR) was performed to detect chlamydial DNA on the flies. Conjunctival swabs were also taken to assay for chlamydial prevalence in the children. Chlamydia was found on 23% of the flies in the untreated villages but only 0.3% in treated villages. Prevalence of trachoma in children proved to be an excellent predictor of the prevalence on flies (correlation coefficient, 0.89). Thus, treating children with antibiotics may drastically reduce the role of flies as a vector

    Real‐world conservation planning for evolutionary diversity in the Kimberley, Australia, sidesteps uncertain taxonomy

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    Targeting phylogenetic diversity (PD) in systematic conservation planning is an efficient way to minimize losses across the Tree of Life. Considering representation of genetic diversity below and above species level, also allows robust analyses within systems where taxonomy is in flux. We use dense sampling of phylogeographic diversity for 11 lizard genera, to demonstrate how PD can be applied to a policy‐ready conservation planning problem. Our analysis bypasses named taxa, using genetic data directly to inform conservation decisions. We highlight areas that should be prioritized for ecological management, and also areas that would provide the greatest benefit if added to the multisector conservation estate. We provide a rigorous and effective approach to represent the spectrum of genetic and species diversity in conservation planning.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/145539/1/conl12438.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/145539/2/conl12438-sup-0001-figureS1-S2.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/145539/3/conl12438_am.pd
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