| 1. |
- Abramo, Giovanni, et al.
(författare)
-
Retraction of Predatory publishing in Scopus : evidence on cross-country differences lacks justification
- 2023
-
Ingår i: Scientometrics. - : Springer Science and Business Media LLC. - 0138-9130 .- 1588-2861. ; 128:2, s. 1459-1461
-
Tidskriftsartikel (refereegranskat)abstract
- As members of the Distinguished Reviewers Board of Scientometrics and/or as recipients of the Derek de Solla Price Medal, we wish to express our disagreement with the retraction of the paper “Predatory publishing in Scopus: evidence on cross-country differences” co-authored by Vít Macháček and Martin Srholec (Macháček & Srholec, 2021a). The retraction was discussed in the blog Retraction Watch (Oransky, 2021), where important information about the context of the retraction was disclosed, including the pressure exerted by the publisher Frontiers on Scientometrics.
|
|
| 2. |
- Ivanova, I., et al.
(författare)
-
Economic and technological complexity: A model study of indicators of knowledge-based innovation systems
- 2017
-
Ingår i: Technological Forecasting and Social Change. - : Elsevier BV. - 0040-1625. ; 120, s. 77-89
-
Tidskriftsartikel (refereegranskat)abstract
- The Economic Complexity Index (ECI; Hidalgo and Hausmann, 2009) measures the complexity of national economies in terms of product groups. Analogously to Ea, the Patent Complexity Index (PatCI) can be developed on the basis of a matrix of nations versus patent classes. Using linear algebra, the three dimensions-countries, product groups, and patent classes-can be combined into a measure of "Triple Helix" complexity (THCI) including the trilateral interaction terms between knowledge production, wealth generation, and (national) control. THCI can be expected to capture the extent of systems integration between the global dynamics of markets (ECI) and technologies (PatCI) in each national system of innovation. We measure ECI, PatCI, and THCI during the period 2000-2014 for the 34 OECD member states, the BRICS countries, and a group of emerging and affiliated economies (Argentina, Hong Kong, Indonesia, Malaysia, Romania, and Singapore). The three complexity indicators are correlated between themselves; but the correlations with GDP per capita are virtually absent. Of the world's major economies, Japan scores highest on all three indicators, while China has been increasingly successful in combining economic and technological complexity. We could not reproduce the correlation between ECI and average income that has been central to the argument about the fruitfulness of the economic complexity approach.
|
|
| 3. |
- Leydesdorff, Loet, et al.
(författare)
-
Interactive overlay maps for US patent (USPTO) data based on International Patent Classification (IPC)
- 2014
-
Ingår i: Scientometrics. - : Springer Science and Business Media LLC. - 0138-9130 .- 1588-2861. ; 98:3, s. 1583-1599
-
Tidskriftsartikel (refereegranskat)abstract
- We report on the development of an interface to the US Patent and Trademark Office (USPTO) that allows for the mapping of patent portfolios as overlays to basemaps constructed from citation relations among all patents contained in this database during the period 1976–2011. Both the interface and the data are in the public domain; the freeware programs VOSViewer and/or Pajek can be used for the visualization. These basemaps and overlays can be generated at both the 3-digit and 4-digit levels of the International Patent Classification (IPC) of the world intellectual Property organization (WIPO). The basemaps can provide a stable mental framework for analysts to follow developments over searches for different years, which can be animated. The full flexibility of the advanced search engines of USPTO are available for generating sets of patents and/or patent applications which can thus be visualized and compared. This instrument allows for addressing questions about technological distance, diversity in portfolios, and animating the developments of both technologies and technological capacities of organizations over time.
|
|
| 4. |
- Leydesdorff, Loet, et al.
(författare)
-
Mapping the geography of science : Distribution patterns and networks of relations among cities and institutes
- 2010
-
Ingår i: Journal of The American Society For Information Science And Technology. - : Wiley. - 1532-2882 .- 1532-2890. ; 61:8, s. 1622-1634
-
Tidskriftsartikel (refereegranskat)abstract
- Using Google Earth, Google Maps, and/or network visualization programs such as Pajek, one can overlay the network of relations among addresses in scientific publications onto the geographic map. The authors discuss the pros and cons of various options, and provide software (freeware) for bridging existing gaps between the Science Citation Indices (Thomson Reuters) and Scopus (Elsevier), on the one hand, and these various visualization tools on the other. At the level of city names, the global map can be drawn reliably on the basis of the available address information. At the level of the names of organizations and institutes, there are problems of unification both in the ISI databases and with Scopus. Pajek enables a combination of visualization and statistical analysis, whereas the Google Maps and its derivatives provide superior tools on the Internet.
|
|
| 5. |
- Leydesdorff, Loet, et al.
(författare)
-
The structure of the Arts & Humanities Citation Index : A mapping on the basis of aggregated citations among 1,157 journals
- 2011
-
Ingår i: Journal of The American Society For Information Science And Technology. - : Wiley. - 1532-2882 .- 1532-2890. ; 62:12, s. 2414-2426
-
Tidskriftsartikel (refereegranskat)abstract
- Using the Arts & Humanities Citation Index (A&HCI) 2008, we apply mapping techniques previously developed for mapping journal structures in the Science and Social Sciences Citation Indices. Citation relations among the 110,718 records were aggregated at the level of 1,157 journals specific to the A&HCI, and the journal structures are questioned on whether a cognitive structure can be reconstructed and visualized. Both cosine-normalization (bottom up) and factor analysis (top down) suggest a division into approximately 12 subsets. The relations among these subsets are explored using various visualization techniques. However, we were not able to retrieve this structure using the Institute for Scientific Information Subject Categories, including the 25 categories that are specific to the A&HCI. We discuss options for validation such as against the categories of the Humanities Indicators of the American Academy of Arts and Sciences, the panel structure of the European Reference Index for the Humanities, and compare our results with the curriculum organization of the Humanities Section of the College of Letters and Sciences of the University of California at Los Angeles as an example of institutional organization.
|
|
| 6. |
- Rahman, Jakaria, 1977, et al.
(författare)
-
Measuring the match between evaluators and evaluees: cognitive distances between panel members and research groups at the journal level
- 2016
-
Ingår i: Scientometrics. - : Springer Science and Business Media LLC. - 1588-2861 .- 0138-9130. ; 109:3, s. 1639-1663
-
Tidskriftsartikel (refereegranskat)abstract
- When research groups are evaluated by an expert panel, it is an open question how one can determine the match between panel and research groups. In this paper, we outline two quantitative approaches that determine the cognitive distance between evaluators and evaluees, based on the journals they have published in. We use example data from four research evaluations carried out between 2009 and 2014 at the University of Antwerp. While the barycenter approach is based on a journal map, the similarity-adapted publication vector (SAPV) approach is based on the full journal similarity matrix. Both approaches determine an entity’s profile based on the journals in which it has published. Subsequently, we determine the Euclidean distance between the barycenter or SAPV profiles of two entities as an indicator of the cognitive distance between them. Using a bootstrapping approach, we determine confidence intervals for these distances. As such, the present article constitutes a refinement of a previous proposal that operates on the level of Web of Science subject categories.
|
|
