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Catholic University of Portugal, Portugal
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3 Papers

VISUALIZING NETWORKS OF MUSIC ARTISTS WITH RAMA

Topics: Searching and Browsing; Multimedia and User Interfaces; Metadata and Metamodeling

Authors: Luís Sarmento 1 , Fabien Gouyon 2 , Bruno G. Costa 3 and Eugénio Oliveira 1

Affiliations: 1 Universidade do Porto, Portugal , 2 INESC, Portugal , 3 Universidade Católica Portuguesa, Portugal

Digital Object Identifier: 10.5220/0001820802320237

Proceedings of WEBIST 2009, ISBN: 978-989-8111-81-4

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In this paper we present RAMA (Relational Artist MAps), a simple yet efficient interface to navigate through networks of music artists. RAMA is built upon a dataset of artist similarity and user-defined tags regarding 583.000 artists gathered from Last.fm. This third-party, publicly available, data about artists similarity and artists tags is used to produce a visualization of artists relations. RAMA provides two simultaneous layers of information: (i) a graph built from artist similarity data, and (ii) overlaid labels containing user-defined tags. Differing from existing artist network visualization tools, the proposed prototype emphasizes commonalities as well as main differences between artist categorizations derived from user-defined tags, hence providing enhanced browsing experiences to users.
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Metadata and Metamodeling

Searching and Browsing

Web Interfaces and Applications
Multimedia and User Interfaces

Web Information Systems and Technologies

ELECTROPHYSIOLOGICAL CONTROL SIGNALS FOR PERSONS WITH NEURODEGENERATIVE CONDITIONS: BLENDED CONTROL SIGNALS

Topic: Human-Machine Interfaces for Disabled Persons

Authors: Ana Londral 1 , Luis Azevedo 2 and Pedro Encarnação 3

Affiliations: 1 ANDITEC, Portugal , 2 Centro de Análise e Processamento de Sinal, Instituto Superior Técnico, Portugal , 3 Faculdade de Engenharia, Universidade Católica Portuguesa, Portugal

Digital Object Identifier: 10.5220/0001044102540259

Proceedings of HEALTHINF 2008/BIOSTEC, ISBN: 978-989-8111-16-6

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Severe neurological conditions may considerably affect one’s functional capabilities. Special computer interfaces and access methods have been developed in attempt to provide a mean to overcome the functional disabilities experienced by persons in these conditions. In this paper, a case study on the usage of a brain-body interface by a young man with Amyotrophic Lateral Sclerosis is presented. From the study different ways of interacting with the computer, beyond the traditional direct selection and scanning methods, emerge. These resort to control signals that combine binary and continuous features, blended control signals. Such control signals may provide more flexible and efficient ways of interacting with Assistive Technology systems, especially for those individuals with neurodegenerative conditions.
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Biomedical Engineering

Health Information Systems

Human-Machine Interfaces for Disabled Persons

SUSTAINABLE DEVELOPMENT AND INVESTMENT IN INFORMATION TECHNOLOGIES - A Socio-Economic Analysis

Topic: Modeling Concepts and Information Integration Tools

Authors: Manuel João Pereira 1 , Luís Valadares Tavares 1 and Raquel Soares 2

Affiliations: 1 Instituto Nacional de Administração, Portugal , 2 Universidade Católica Portuguesa, Portugal

Digital Object Identifier: 10.5220/0002551000810088

Proceedings of ICEIS 2005, ISBN: 972-8865-19-8

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The output of investments in Information Systems and Technologies (IST) has been a topic of debate among the IST research community. The “Productivity Paradox of IST Investments” sustains that the investment in IST does not increase productivity. Some researchers showed that developed countries have been having a rather stable and sometimes declining economic growth despite their efforts in Research and Development (R&D). Other researchers argue that there is sound evidence that investments in IST are having impacts on the productivity and competitiveness of countries. This paper analyses the relationship between IST and R&D investments and the global development of countries (not only productivity of countries) using economic, demographic and literacy independent variables that explain global development. The objective is to research whether R&D and IST investments are critical to the productivity and to global development of the countries. Working at a country level, the research used sixteen socio-economic variables during a period of five years (1995-1999). The research methodology included causal forecast, cluster analysis, factor analysis, discriminant analysis and regression analysis. The conclusion confirms the correlation between the Gross National Product (GNP) and R&D and IST investments. The variables illiteracy rate, life expectancy at birth, Software investment as percentage of GNP and number of patents per 1000 inhabitants can explain the development of a country.
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Enterprise Information Systems

Information Systems Analysis and Specification

Modeling Concepts and Information Integration Tools

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