-
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.
-
Christoffel, M.; Schmitt, B.: Accessing Libraries as Easy as a Game (2002)
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- Date
- 22. 2.2003 17:25:39
22. 2.2003 18:19:01
-
Cronin, B.: Vernacular and vehicular language (2009)
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- Date
- 22. 3.2009 11:44:11
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Denda, K.: Beyond subject headings : a structured information retrieval tool for interdisciplinary fields (2005)
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- Date
- 10. 9.2000 17:38:22
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Jones, E.: ¬The FRBR model as applied to continuing resources (2005)
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- 10. 9.2000 17:38:22
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Lorenz, B.: Inhalterschliessung 2006 : Sitzungen der bibliothekarischen Artbeitsgruppen bei der Jahrestagung der Gesellschaft für Klassifikation an der FU Berlin, 8. und 9. März 2006 (2006)
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- Date
- 28.12.2007 19:22:52
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Gerber, B.: Elektronische Zeitschriften : Das 6. Hamburger Kolloquium im Zeichen der Neuen Medien (2001)
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- Date
- 22. 3.2001 12:14:06
-
Gore, B.: Model schemes for DWPI access in PATLIB libraries (2000)
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- Source
- World patent information. 22(2000) no.1, S.13-18
-
Baumann, S.; Tillett, B.: Interview: Barbara Tillett (2003)
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- Date
- 17. 8.2003 15:50:22
-
Gödert, W.; Hubrich, J.; Boteram, F.: Thematische Recherche und Interoperabilität : Wege zur Optimierung des Zugriffs auf heterogen erschlossene Dokumente (2009)
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- Source
- https://opus4.kobv.de/opus4-bib-info/frontdoor/index/index/searchtype/authorsearch/author/%22Hubrich%2C+Jessica%22/docId/703/start/0/rows/20
-
Chen, C.: CiteSpace II : detecting and visualizing emerging trends and transient patterns in scientific literature (2006)
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- Abstract
- This article describes the latest development of a generic approach to detecting and visualizing emerging trends and transient patterns in scientific literature. The work makes substantial theoretical and methodological contributions to progressive knowledge domain visualization. A specialty is conceptualized and visualized as a time-variant duality between two fundamental concepts in information science: research fronts and intellectual bases. A research front is defined as an emergent and transient grouping of concepts and underlying research issues. The intellectual base of a research front is its citation and co-citation footprint in scientific literature - an evolving network of scientific publications cited by research-front concepts. Kleinberg's (2002) burst-detection algorithm is adapted to identify emergent research-front concepts. Freeman's (1979) betweenness centrality metric is used to highlight potential pivotal points of paradigm shift over time. Two complementary visualization views are designed and implemented: cluster views and time-zone views. The contributions of the approach are that (a) the nature of an intellectual base is algorithmically and temporally identified by emergent research-front terms, (b) the value of a co-citation cluster is explicitly interpreted in terms of research-front concepts, and (c) visually prominent and algorithmically detected pivotal points substantially reduce the complexity of a visualized network. The modeling and visualization process is implemented in CiteSpace II, a Java application, and applied to the analysis of two research fields: mass extinction (1981-2004) and terrorism (1990-2003). Prominent trends and pivotal points in visualized networks were verified in collaboration with domain experts, who are the authors of pivotal-point articles. Practical implications of the work are discussed. A number of challenges and opportunities for future studies are identified.
- Date
- 22. 7.2006 16:11:05
-
Mukherjee, B.: Do open-access journals in library and information science have any scholarly impact? : a bibliometric study of selected open-access journals using Google Scholar (2009)
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- Abstract
- Using 17 fully open-access journals published uninterruptedly during 2000 to 2004 in the field of library and information science, the present study investigates the impact of these open-access journals in terms of quantity of articles published, subject distribution of the articles, synchronous and diachronous impact factor, immediacy index, and journals' and authors' self-citation. The results indicate that during this 5-year publication period, there are as many as 1,636 articles published by these journals. At the same time, the articles have received a total of 8,591 Web citations during a 7-year citation period. Eight of 17 journals have received more than 100 citations. First Monday received the highest number of citations; however, the average number of citations per article was the highest in D-Lib Magazine. The value of the synchronous impact factor varies from 0.6989 to 1.0014 during 2002 to 2005, and the diachronous impact factor varies from 1.472 to 2.487 during 2000 to 2004. The range of the immediacy index varies between 0.0714 and 1.395. D-Lib Magazine has an immediacy index value above 0.5 in all the years whereas the immediacy index value varies from year to year for the other journals. When the citations of sample articles were analyzed according to source, it was found that 40.32% of the citations came from full-text articles, followed by 33.35% from journal articles. The percentage of journals' self-citation was only 6.04%.
- Date
- 22. 3.2009 17:54:59
-
Albers, C.: Zeitungen in Bibliotheken : Aufsätze, Monographien und Rezensionen aus den Jahren 2002-2003. Mit Nachträgen für die Jahre 1980-2001 (2004)
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- Date
- 22. 3.2008 13:32:22
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- b
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Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
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- Date
- 22. 7.2006 15:22:28
-
Wege zum Wissen - die menschengerechte Information : 22. Oberhofer Kolloquium 2002, Gotha, 26. bis 28. September 2002. Proceedings (2002)
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- Editor
- Markscheffel, B.
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Menon, B.: Optimiser l'acces a l'information, une opportunite pour les langages documentaires? (2007)
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- Date
- 1. 8.1996 22:01:00
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Oßwald, A.: Proaktives Wissensmanagement für Fachbereiche, Hochschule und externe Partner : Bibliotheksdienstleistungen als Brücke zur Praxis (2000)
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- Date
- 27.10.2001 12:22:54
- Source
- Wissenschaft online: Elektronisches Publizieren in Bibliothek und Hochschule. Hrsg. B. Tröger
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Graff, B.: Microsoft Encarta : Goethe höret die Signale (2000)
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- Source
- Online Mitteilungen. 2000, Nr.66, S.22-25 [=Mitteilungen VÖB 53(2000) H.1]
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Oehlschläger, S.: Aus der 43. Sitzung der Arbeitsgemeinschaft der Verbundsysteme am 22. und 23. Oktober in der Deutschen Bibliothek Frankfurt am Main (2003)
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- Abstract
- Auf S.86 auch Aussagen zu den Thesen von B. Eversberg zur Regelwerksdiskussion
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Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
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- Abstract
- Ahlgren, Jarneving, and. Rousseau review accepted procedures for author co-citation analysis first pointing out that since in the raw data matrix the row and column values are identical i,e, the co-citation count of two authors, there is no clear choice for diagonal values. They suggest the number of times an author has been co-cited with himself excluding self citation rather than the common treatment as zeros or as missing values. When the matrix is converted to a similarity matrix the normal procedure is to create a matrix of Pearson's r coefficients between data vectors. Ranking by r and by co-citation frequency and by intuition can easily yield three different orders. It would seem necessary that the adding of zeros to the matrix will not affect the value or the relative order of similarity measures but it is shown that this is not the case with Pearson's r. Using 913 bibliographic descriptions form the Web of Science of articles form JASIS and Scientometrics, authors names were extracted, edited and 12 information retrieval authors and 12 bibliometric authors each from the top 100 most cited were selected. Co-citation and r value (diagonal elements treated as missing) matrices were constructed, and then reconstructed in expanded form. Adding zeros can both change the r value and the ordering of the authors based upon that value. A chi-squared distance measure would not violate these requirements, nor would the cosine coefficient. It is also argued that co-citation data is ordinal data since there is no assurance of an absolute zero number of co-citations, and thus Pearson is not appropriate. The number of ties in co-citation data make the use of the Spearman rank order coefficient problematic.
- Date
- 9. 7.2006 10:22:35
