You are cordially invited to attend this colloquium:
Date: Friday, February 27, 2009
Time: 3:00 p.m.
Place: Informatics East (I2), Room 130
Johan Bollen, Los Alamos National Laboratory, will present, "Network models of science."
Abstract:
The dynamics of science as a social system have largely been studied from its final products, namely publications and the citations that they carry. While this approach has led to considerable progress in modeling scientific communication, it is also subject to particular disadvantages such as the effects of publication delays and sampling errors. In this presentation I outline a research program at the Los Alamos National Laboratory to study scientific activity from large-scale usage data logs that contain the online trails that scientists leave behind when they search and download articles from online services. From this data we construct models of scientific traffic that represent the collective flow of activity within the scientific community. The resulting usage graphs underpin efforts to map and detect scientific trends as well as advanced methods of evaluating the network status of various resources. I will provide an overview of these efforts and highlight recent results followed by a discussion of future research in this emerging domain.
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