Newsgroups and the creation of Electronic Invisible Colleges Instituto Superior Técnico Portugal 15 March 2002 Seminário IST - 15 Março 2002, Caldas, Alex.

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Presentation transcript:

Newsgroups and the creation of Electronic Invisible Colleges Instituto Superior Técnico Portugal 15 March 2002 Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Synopsis Webmetrics of Newsgroups Evolution and Speciation Social Structure and electronic Invisible Colleges Scientific Communication and Knowledge-Exchange Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Research Design

Digital Infrastructures for Science Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Communication among Scientists Collaboratory Environments Digital Libraries and Scientific Data transfer Scientific Electronic Publishing Physical Electronic Networks (infrastructure) Remote Control of Instruments

Research Design Research Question and Hypotheses Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Are Newsgroups and electronic networks extending Invisible Colleges into the digital age? Invisible Colleges - theoretical framework Newsgroups - empirical evidence

Research Design Research Question and Hypotheses Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Invisible Colleges - Theoretical framework Scientific Communication (Informal system) Collaboration (at various levels) Scientific Performance (Knowledge-creation)

Research Design Research Question and Hypotheses Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Electronic networks support the creation of social circles or clique-like structures over time. Electronic networks support the exchange of Scientific Knowledge Longitudinal Social Network Analysis Content Analysis of Newsgroup messages

Research Design Methodology Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK Newsgroups data-mining (NewsNetworks tool) Time-series data Analysis Content Analysis of Newsgroup messages Newsgroups individual messages (28 185) - comp.speech (Oct Aug 1998) - comp.speech.research (May Aug 2000) - comp.speech.users (May Aug 2000) Social Network data Analysis

Webmetrics of Newsgroups Indicators for measuring these dynamic systems Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Webmetrics of Newsgroups Different Authors and different Messages Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Webmetrics of Newsgroups A taxonomy for Authors participation Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Evolution and Speciation Diffusion like technologies? Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Social Structure and Invisible Colleges Network analysis - Circles of collaboration Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Social Structure and Invisible Colleges Subgroups, Cliques and Network Connectedness Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Social Structure and Invisible Colleges Confirmation of Speciation model Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Knowledge-Exchange Electronic Scientific Communication - Content Analysis Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Knowledge-Exchange Classification of Information Exchange Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK

Conclusions Webmetric is useful but we need further social structure analysis Speciation model of Evolution Creation of electronic in-visible colleges Peer review is missing!? Validation of Knowledge in the future Seminário IST - 15 Março 2002, Caldas, Alex - SPRU, Univ.Sussex, UK