-
Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989)
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- Source
- Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47
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Anderson, C.R.: Indexing with a computer : past and present (2000)
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- Indexer. 22(2000) no.1, S.23-24
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Arms, C.R.: ¬A new information infrastructure (1990)
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- Source
- Online. 14(1990) no.5, S.15-22
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Robinson, D.A.; Lester, C.R.; Hamilton, N.M.: Delivering computer assisted learning across the WWW (1998)
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- Date
- 1. 8.1996 22:08:06
-
Scholarly metrics under the microscope : from citation analysis to academic auditing (2015)
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- Date
- 22. 1.2017 17:12:50
- Editor
- Cronin, B. u. C.R. Sugimoto
-
Strader, C.R.: Citation analysis (2012)
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- Date
- 10. 9.2000 17:38:22
-
Hildreth, C.R.: Online public access catalogs : the user interface (1982)
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-
Sherman, C.R.: ICONCLASS: a historical perspective (1987)
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-
Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001)
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- Content
- Vgl.: https://www.semanticscholar.org/paper/Piaget-%E2%80%99-s-Constructivism-%2C-Papert-%E2%80%99-s-%3A-What-%E2%80%99-s-Ackermann/89cbcc1e740a4591443ff4765a6ae8df0fdf5554. Darunter weitere Hinweise auf verwandte Beiträge. Auch unter: Learning Group Publication 5(2001) no.3, S.438.
-
Bertot, J.C.; McClure, C.R.: Developing assessment techniques for statewide electronic networks (1996)
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- Date
- 7.11.1998 20:27:22
-
Sugimoto, C.R.; Cronin, B.: Biobibliometric profiling : an examination of multifaceted approaches to scholarship (2012)
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- Abstract
- We conducted a fine-grained prosopography of six distinguished information scientists to explore commonalities and differences in their approaches to scholarly production at different stages of their careers. Specifically, we gathered data on authors' genre preferences, rates and modes of scholarly production, and coauthorship patterns. We also explored the role played by gender and place in determining mentoring and collaboration practices across time. Our biobibliometric profiles of the sextet reveal the different shapes a scholar's career can take. We consider the implications of our findings for new entrants into the academic marketplace.
-
Hildreth, C.R.: Beyond Boolean: designing the next generation of online catalogs (1987)
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-
Hernon, P.; McClure, C.R.: Library reference service : an unrecognized crisis - a symposium (1987)
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-
McClure, C.R.: Subject and added entries as access to information (1976)
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-
Hildreth, C.R.: Pursuing the ideal : generations of online catalogs (1984)
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-
Anderson, C.R.: Online ready reference in the public library (1989)
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-
Hernon, P.; McClure, C.R.: Unobtrusive reference testing : the 55 percent rule (1986)
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-
Yan, E.; Ding, Y.; Sugimoto, C.R.: P-Rank: an indicator measuring prestige in heterogeneous scholarly networks (2011)
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- Abstract
- Ranking scientific productivity and prestige are often limited to homogeneous networks. These networks are unable to account for the multiple factors that constitute the scholarly communication and reward system. This study proposes a new informetric indicator, P-Rank, for measuring prestige in heterogeneous scholarly networks containing articles, authors, and journals. P-Rank differentiates the weight of each citation based on its citing papers, citing journals, and citing authors. Articles from 16 representative library and information science journals are selected as the dataset. Principle Component Analysis is conducted to examine the relationship between P-Rank and other bibliometric indicators. We also compare the correlation and rank variances between citation counts and P-Rank scores. This work provides a new approach to examining prestige in scholarly communication networks in a more comprehensive and nuanced way.
-
Gazni, A.; Sugimoto, C.R.; Didegah, F.: Mapping world scientific collaboration : authors, institutions, and countries (2012)
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- Abstract
- International collaboration is being heralded as the hallmark of contemporary scientific production. Yet little quantitative evidence has portrayed the landscape and trends of such collaboration. To this end, 14,000,000 documents indexed in Thomson Reuters's Web of Science (WoS) were studied to provide a state-of-the-art description of scientific collaborations across the world. The results indicate that the number of authors in the largest research teams have not significantly grown during the past decade; however, the number of smaller research teams has seen significant increases in growth. In terms of composition, the largest teams have become more diverse than the latter teams and tend more toward interinstitutional and international collaboration. Investigating the size of teams showed large variation between fields. Mapping scientific cooperation at the country level reveals that Western countries situated at the core of the map are extensively cooperating with each other. High-impact institutions are significantly more collaborative than others. This work should inform policy makers, administrators, and those interested in the progression of scientific collaboration.
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Larivière, V.; Gingras, Y.; Sugimoto, C.R.; Tsou, A.: Team size matters : collaboration and scientific impact since 1900 (2015)
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- Abstract
- This article provides the first historical analysis of the relationship between collaboration and scientific impact using three indicators of collaboration (number of authors, number of addresses, and number of countries) derived from articles published between 1900 and 2011. The results demonstrate that an increase in the number of authors leads to an increase in impact, from the beginning of the last century onward, and that this is not due simply to self-citations. A similar trend is also observed for the number of addresses and number of countries represented in the byline of an article. However, the constant inflation of collaboration since 1900 has resulted in diminishing citation returns: Larger and more diverse (in terms of institutional and country affiliation) teams are necessary to realize higher impact. The article concludes with a discussion of the potential causes of the impact gain in citations of collaborative papers.
