802 research outputs found
Does Environmental Economics lead to patentable research?
In this feasibility study, the impact of academic research from social
sciences and humanities on technological innovation is explored through a study
of citations patterns of journal articles in patents. Specifically we focus on
citations of journals from the field of environmental economics in patents
included in an American patent database (USPTO). Three decades of patents have
led to a small set of journal articles (85) that are being cited from the field
of environmental economics. While this route of measuring how academic research
is validated through its role in stimulating technological progress may be
rather limited (based on this first exploration), it may still point to a
valuable and interesting topic for further research.Comment: 10 pages, 4 table
Equalities between h-type indices and definitions of rational h-type indicators
Purpose: To show for which publication-citation arrays h-type indices are equal and to reconsider rational h-type indices. Results for these research questions fill some gaps in existing basic knowledge about h-type indices.
Design/methodology/approach: The results and introduction of new indicators are based on well-known definitions.
Findings: The research purpose has been reached: answers to the first questions are obtained and new indicators are defined.
Research limitations: h-type indices do not meet the Bouyssou-Marchant independence requirement.
Practical implications: On the one hand, more insight has been obtained for well-known indices such as the h-and the g-index and on the other hand, simple extensions of existing indicators have been added to the bibliometric toolbox. Relative rational h-type indices are more useful for individuals than the existing absolute ones.
Originality/value: Answers to basic questions such as "when are the values of two h-type indices equal" are provided. A new rational h-index is introduced
What does the Web of Science five-year synchronous impact factor have to offer?
With a random sample of 10 JCR (Science) subject areas it is shown that the 2-year and the 5-year impact factor of journals lead statistically to the same ranking per category. Yet in a majority of cases, the 5-year impact factor is larger than the 2-year one.</p
The small-world phenomenon: a model, explanations, characterizations and examples
We introduce and define three types of small worlds: small worlds based on
the diameter of the network (SWD), those based on the average geodesic distance
between nodes (SWA), and those based on the median geodesic distance (SWMd).
These types of networks are defined as limiting properties of sequences of
sets. We show the exact relation between these three types, namely that each
SWD network is also an SWA network and that each SWA network is also an SWMd
network. Yet, having the small-world property is rather evident, in the sense
that most networks are small-world networks in one of the three ways. We
introduce sequences of distance frequencies, so-called alpha-sequences, and
prove a relation between the majorization property between alpha-sequences and
small-world properties
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