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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

COBE: A CONJUNCTIVE ONTOLOGY BROWSER AND EXPLORER FOR VISUALIZING SNOMED CT FRAGMENTS

Sun, Mengmeng 03 September 2015 (has links)
No description available.
2

Improving Knowledge Organizations Search Interface design by Evaluating Main-Stream Search Interface Design.

Murugan, Ganesh January 2011 (has links)
Usage of search is very popular among all kinds of people to locate unknown information in websites. Mainstream search engines like Google work really hard to deliver a simple and effective search experience with the help of professionals and usability lab testing. Search interfaces often show a poor usability for the users who want to find information in differentknowledge organizations website. The purpose of this research is to create an understanding for some important characteristics of search interfaces, characteristics that may enhance the usability of knowledge organization search interface design. This Paper aim is to identify and discuss the specialized search interface design for knowledge organizations. This paper provides the detailed information about the search interface design and its improvement. This study gives the specialized wireframe standards for improving knowledge organization search interface design. / Program: Magisterutbildning i informatik
3

Identifying Website Usability Solely from Gaze Data of Visual Search

Söderberg, Martin January 2017 (has links)
If researchers are able to derive usability simply by analysing gaze data it provides a quick, objective and potentially automatic way of measuring the usability of an interface. In order to do that it is essential to know which traits of the gaze data that have an impact on usability. This paper investigates these traits by analysing different eye tracking metrics in the data. The goal is to see which of these metrics have a general correlation with usability. Previous research provides a clue about which metrics are useful when analysing usability. However, much of the research is based on subjective analysis or lacks in general applicability. This research provides an objective analysis that is independent of characteristics of the interface. A user study is done on 20 participants. They complete tasks on nine different ecommerce websites while their eye movements are recorded. Correlation is measured between usability and eye tracking metrics in order to investigate which metrics that are sensitive to changes in usability. The results show that fixational backtracks and number of fixations have the strongest correlation with usability. Previous research did suggest that both of these eye tracking metrics have an impact on usability. / Om det är möjligt för forskare att härleda användbarhet endast genom att analysera ögondata så tillhandahålls ett snabbt, objektivt och potentiellt automatiserat sätt att mäta användbarheten hos ett gränssnitt. För att göra detta är det avgörande att veta vilka karakteristiska drag i ögondatan som påverkar användbarheten. Denna rapport utforskar dessa drag genom att analysera olika mått i ögondatan. Målet är att se vilka av dessa mått som uppvisar en generell korrelation med användbarhet. Tidigare forskning förser oss med ledtrådar om vilka mått som är lämpliga att analysera när användbarhet ska mätas. Dock så är mycket av denna forskning baserad på subjektiv analys eller saknar generell tillämpbarhet. Denna rapport tillhandahåller en objektiv analys som är oberoende av karakteristiken hos gränssnittet. En användarstudie utförs på 20 deltagare. De utför uppgifter på nio olika webbsidor för e-handel medan deras ögonrörelser spelas in. Korrelation mäts mellan användbarhet och mått i ögondatan för att undersöka vilka mått som är känsliga för förändringar i användbarhet. Resultatet visar att tillbakabildande sackader och antal fixeringar har starkast korrelation med användbarhet. Tidigare forskning visade att båda dessa mått påverkades av användbarheten.
4

Findability: elementos essenciais para as formas de encontro da informação em bibliotecas digitais

Landshoff, Renate 19 November 2011 (has links)
Made available in DSpace on 2016-04-29T14:23:04Z (GMT). No. of bitstreams: 1 Renate Landshoff.pdf: 3875996 bytes, checksum: a0da1263d095248a5d6973fb7cd4e325 (MD5) Previous issue date: 2011-11-19 / This study aims to recommend key elements which impact the ways to find information in digital library environments, including features found in Web 2.0. The theory is based on the concept of Findability, coined by Morville, on the significant contribution of Manovich, on Santaella‟s study about cognitive profiles of readers and Internet users, and on Weinberg and Cunha‟s view on the mission of digital libraries. The development of this work is based on the method of qualitative case studies, highlighting positive and negative aspects of search interfaces from elements considered relevant to digital library projects and identified with the contribution of concepts brought from Library and Information Science. The study emphasizes the contribution of digital libraries for Web search, without however fail to point to their weaknesses and need for evolution. The processing of information at the time of data entry, the development of more intelligent search interfaces, the different cognitive profiles of users, the participation of multidisciplinary teams and constant monitoring of the digital environment elements must be considered and pursued over the existence of a design of this profile. The study points out finally the changes that must occur in searching from the Semantic Web and the development of artificial intelligence, impacting the way we are used to seek information, continually increasing its "findability." / Este estudo tem por objetivo recomendar elementos essenciais que impactam as formas de encontro da informação em ambientes de bibliotecas digitais, incluindo as funcionalidades encontradas na Web 2.0. A fundamentação teórica está baseada no conceito de Findability, cunhado por Morville, na contribuição expressiva de Manovich, no estudo de Santaella sobre os perfis cognitivos de leitores e internautas e na visão de Weinberg e Cunha sobre a missão de bibliotecas digitais. O desenvolvimento deste trabalho está baseado no método de estudos de casos qualitativos, ressaltando aspectos positivos e negativos de interfaces de busca a partir de elementos considerados relevantes para projetos de bibliotecas digitais e identificados com a contribuição de conceitos trazidos da área de Biblioteconomia e Ciência da Informação. O estudo destaca a contribuição das bibliotecas digitais para a pesquisa na Web, sem no entanto deixar de apontar para as suas fragilidades e necessidade de evolução. O tratamento da informação no momento da entrada de dados, o desenvolvimento de interfaces de busca mais inteligentes, os diversos perfis cognitivos de usuários, a participação de equipes multidisciplinares e o monitoramento constante do ambiente digital devem ser elementos considerados e perseguidos ao longo da existência de um projeto deste perfil. O estudo destaca por fim, as mudanças que devem ocorrer com a busca a partir da Web Semântica e o desenvolvimento da inteligência artificial, impactando na forma como estamos acostumados a buscar a informação, aumentando cada vez mais a sua encontrabilidade

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