463 research outputs found
The Social Impact of Research: New Modes of Scholarship, New Ways of Publishing
No full textJoin us to explore the changing research methods and publication practices of researchers, particularly those in the hard an social sciences. Johan Bollen, associate professor at the Indiana University School of Informatics and Computing and Roger Schonfeld, Director of Research at Ithaka S+R, discuss the changing role of the traditional journal article, the ways that social media is augmenting the scholarly dialogue, and how changing incentives and publication practices interact to foster scientific innovation.
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Final Impact: What Factors Really Matter?
No full textA panel discussion on the debate about the best way to rank the importance and influence of scholarly publications. Panelists: Marian Hollingsworth, director of Publisher Relations at Thomson Reuters and former assistant director of the National Federation of Abstracting and Information Services; Jevin West, an Achievement Awards for College Scientists Fellow at the University of Washington's Biology Department and head developer for Eigenfactor.org; and Johan Bollen, a staff researcher at Los Alamos National Laboratory and the principal investigator of the MESUR project
Evaluating Citebase, an open access Web-based citation-ranked search and impact discovery service
No full textCitebase is a new citation-ranked search and impact discovery service that measures citations of scholarly research papers which are openly accessible on the Web, i.e. papers that are assessable continuously online. Other services, such as ResearchIndex, have emerged in recent years to offer citation indexing of Web research papers. In the first detailed user evaluation of an open access Web citation indexing service, Citebase has been evaluated by nearly 200 users from different backgrounds. The paper details the procedures used in the evaluation, and analyses the results of this study, which took place between June and October 2002. It was found that within the scope of its primary components, the search interface and services available from its rich bibliographic records, Citebase can be used simply and reliably for the purpose intended, and that it compares favourably with other bibliographic services. It is shown tasks can be accomplished efficiently with Citebase regardless of the background of the user. More data need to be collected and the process refined before it is as reliable for measuring citation impact of indexed papers. Better explanations and guidance are required for first-time users. Coverage is seen as a limiting factor, even though Citebase indexes over 200,000 papers from arXiv. Non-physicists were frustrated at the lack of papers from other sciences. The principle of citation searching of open access archives has thus been demonstrated and need not be restricted to current users. Since the evaluation, Citebase has become a featured service of the ArXiv physics eprint archives
Cognitive distortions are associated with increasing political polarization
No full text"Cognitive distortions are associated with increasing political polarization"
by Andy Edinger, Johan Bollen, Hernán A. Makse, and Matteo Serafin
CERN workshop on Innovations in Scholarly Communication (OAI5)
No full textUsage data is increasingly regarded as a valuable resource in the assessment of scholarly communication items. However, the development of quantitative, usage-based indicators of scholarly impact is still in its infancy. The Digital Library Research & Prototyping Team at the Los Alamos National Laboratory's Research library has therefore started a program to expand the set of usage-based tools for the assessment of scholarly communication items. The two-year MESUR project, funded by the Andrew W. Mellon Foundation, aims to define and validate a range of usage-based impact metrics, and issue guidelines with regards to their characteristics and proper application.
The MESUR project is constructing a large-scale semantic model of the scholarly community that seamlessly integrates a wide range of bibliographic, citation and usage data. Functioning as a reference data set, this model is analyzed to characterize the intricate networks of typed relationships that exist in the scholarly community. The resulting characterizations guide a program for the definition and validation of usage-based impact metrics. This lecture will provide an overview of MESUR's progress so far, followed by a discussion of the architecture and standards that MESUR has adopted.
The results of a preliminary analysis of the generated model will be discussed. The lecture will conclude with an overview of MESUR's future activities and expected outcomes.
View Johan Bollen's biography</p
Moving beyond e-journals
No full textPaul Ayris explains to Elspeth Hyams why scholarly communication has moved beyond the debate on e-journals pricing and open access
Data and code for "Rise and Fall of Rationality in Language" by Marten Scheffer, Ingrid van de Leemput, Els Weinans, and Johan Bollen
No full textImpact Factor: Von Google lernen
No full textJohan Bollen, Marko A. Rodriguez und Herbert Van de Sompel zeigen in ihrem Papier Journal Status (bei arXiv.org natürlich frei zugänglich), wie die Ermittlung des Impact Factors bei Thomson ISI durch Anlehnung an Googles PageRank-Verfahren verbessert werden könnte
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