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JASIS
2000
100views more  JASIS 2000»
13 years 9 months ago
Raising reliability of web search tool research through replication and chaos theory
: Because the World Wide Web is a dynamic collection of information, the Web search tools (or "search engines") that index the Web are dynamic. Traditional information re...
Scott Nicholson
JASIS
2002
76views more  JASIS 2002»
13 years 9 months ago
Duality revisited: Construction of fractional frequency distributions based on two dual Lotka laws
Fractional frequency distributions of e.g. authors with a certain (fractional) number of papers are very irregular and, therefore, not easy to model or to explain. This paper give...
Leo Egghe, I. K. Ravichandra Rao
JASIS
2010
129views more  JASIS 2010»
13 years 8 months ago
Science overlay maps: A new tool for research policy and library management
We present a novel approach to visually locate bodies of research within the sciences, both at each moment of time and dynamically. This article describes how this approach fits w...
Ismael Rafols, Alan L. Porter, Loet Leydesdorff
JASIS
2006
90views more  JASIS 2006»
13 years 9 months ago
Can scientific journals be classified in terms of aggregated journal-journal citation relations using the Journal Citation Repor
The aggregated citation relations among journals included in the Science Citation Index provide us with a huge matrix which can be analyzed in various ways. Using principal compon...
Loet Leydesdorff
JASIS
2006
90views more  JASIS 2006»
13 years 9 months ago
Classification and powerlaws: The logarithmic transformation
Logarithmic transformation of the data has been recommended by the literature in the case of highly skewed distributions such as those commonly found in information science. The p...
Loet Leydesdorff, Stephen J. Bensman