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- University of AmsterdamNL104 papers
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- Max Planck InnovationDE8 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Amsterdam NeuroscienceNL6 papers
- Max Planck SocietyDE6 papers
- KU LeuvenBE5 papers
- National Institute for Subatomic PhysicsNL5 papers
- The Ohio State UniversityUS5 papers
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8 papers · 1 filter
Betweenness Centrality as a Driver of Preferential Attachment in the Evolution of Research Collaboration Networks
Alireza Abbasi, Liaquat Hossain, Loet Leydesdorff
We analyze whether preferential attachment in scientific coauthorship networks is different for authors with different forms of centrality. Using a complete database for the scient…
The Disclosure of University Research for Third Parties: A Non-Market Perspective on an Italian University
Michelina Venditti, Emanuela Reale, Loet Leydesdorff
Nations, universities, and regional governments commit resources to promote the dissemination of scientific and technical knowledge. One focuses on knowledge-based innovations and…
Mapping (USPTO) Patent Data using Overlays to Google Maps
Loet Leydesdorff, Lutz Bornmann
A technique is developed using patent information available online (at the US Patent and Trademark Office) for the generation of Google Maps. The overlays indicate both the quantit…
World Shares of Publications of the USA, EU-27, and China Compared and Predicted using the New Interface of the Web-of-Science versus Scopus
Loet Leydesdorff
The new interface of the Web of Science (of Thomson Reuters) enables users to retrieve sets larger than 100,000 documents in a single search. This makes it possible to compare publ…
An Evaluation of Impacts in "Nanoscience & nanotechnology:" Steps towards standards for citation analysis
Loet Leydesdorff
One is inclined to conceptualize impact in terms of citations per publication, and thus as an average. However, citation distributions are skewed, and the average has the disadvant…
A Rejoinder on Energy versus Impact Indicators
Loet Leydesdorff, Tobias Opthof
Citation distributions are so skewed that using the mean or any other central tendency measure is ill-advised. Unlike G. Prathap's scalar measures (Energy, Exergy, and Entropy or E…