-
Romanov, A.K.; Terekhov, A.I.: ¬The mathematical model of productivity and age structured scientific community evolution (1997)
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- Abstract
- The productivity factor is very important in the mathematical simulation of scientific community evolution. Includes productivity as well as age in the individual state space and derives the main dynamic equation which takes into account the stochastic fluctuations of scientific community members' productivity and some modifications of the Fokker Planck equation. Suggests an approximation method for the evolution model with the aid of which the computational experiement is carried out. Discusses experimental results and possible ways for improvement and extension of the model
-
Chen, Y.-S.; Chong, P.P.; Tong, M.Y.: Dynamic behavior of Bradford's law (1995)
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- Abstract
- Examines 2 problems associated with Bradford's law: since empirical data deviate from the law in many applications, what are the significant factors influencing the Bradford graphs; what will be the evolution over time of the Bradford graphs? A computational analysis of the 2 problems is made based on Herbert Simon's model. Several significant findings about the dynamic behaviour of Bradford's law are identified
-
Milman, B.L.: Individual co-citation clusters as nuclei of complete and dynamic informetric models of scientific and technological areas (1994)
0.02
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- Abstract
- Describes the construction of improved informetric models of individual scientific and technological areas on the basis of individual co citation clusters. The developed methodology of replenishment of research front with accidently absent papers describes the model more completely. Proposes the simple method of cluster 'dynamization' for the study of evolution of research area. The transition under consideration from co citation clusters to lexical maps of papers and patents enables the monitoring of the relationshuip between R and D in a given technological area. Provides the example from modern chemical engineering of Pressure-Swing Adsorption
-
Debackere, K.; Clarysse, B.: Advanced bibliometric methods to model the relationship between entry behavior and networking in emerging technological communities (1998)
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- Abstract
- Organizational ecology and social network theory are used to explain entries in technological communities. Using bibliometric data on 411 organizations in the field of plant biotechnology, we test several hypotheses that entry is not only influenced by the density of the field, but also by the structure of the R&D network within the community. The empirical findings point to the usefulness of bibliometric data in mapping change and evolution in technological communities, as well as to the effects of networking on entry behavior
-
Swarupanandan, K.; Pillai, K.S.; Basha, C.: Some observations on the evolution of knowledge and disciplines (1996)
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-
Garfield, E.: From citation indexes to informetrics : is the tail now wagging the dog? (1998)
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- Abstract
- Provides a synoptic review and history of citation indexes and their evolution into research evaluation tools including a discussion of the use of bibliometric data for evaluating US institutions (academic departments) by the National Research Council (NRC). Covers the origin and uses of periodical impact factors, validation studies of citation analysis, information retrieval and dissemination (current awareness), citation consciousness, historiography and science mapping, Citation Classics, and the history of contemporary science. Illustrates the retrieval of information by cited reference searching, especially as it applies to avoiding duplicated research. Discusses the 15 year cumulative impacts of periodicals and the percentage of uncitedness, the emergence of scientometrics, old boy networks, and citation frequency distributions. Concludes with observations about the future of citation indexing
-
Scharnhorst, A.: Citation - networks, science landscapes and evolutionary strategies (1998)
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- Abstract
- The construction of virtual science landscapes based on citation networks and the strategic use of the information therein shed new light on the issues of the evolution of the science system and possibilities for control. Leydesdorff's approach to citation theory described in his 1998 article (see this issue of LISA) takes into account the dual layered character of communication networks and the second order nature of the science system. This perspective may help to sharpen the awareness of scientists and science policy makers for possible feedback loops within actions and activities in the science system, and probably nonlinear phenomena resulting therefrom. Sketches an additional link to geometrically oriented evolutionary theories and uses a specific landscape concept as a framework for some comments
-
Leydesdorff, L.: Theories of citation? (1999)
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- Abstract
- Citations support the communication of specialist knowledge by allowing authors and readers to make specific selections in several contexts at the same time. In the interactions between the social network of authors and the network of their reflexive communications, a sub textual code of communication with a distributed character has emerged. Citation analysis reflects on citation practices. Reference lists are aggregated in scientometric analysis using one of the available contexts to reduce the complexity: geometrical representations of dynamic operations are reflected in corresponding theories of citation. The specific contexts represented in the modern citation can be deconstructed from the perspective of the cultural evolution of scientific communication
-
Esler, S.L.; Nelson, M.L.: Evolution of scientific and technical information distribution (1998)
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-
Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998)
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- Date
- 22. 5.1999 19:22:35
-
Bookstein, A.: Informetric distributions : I. Unified overview (1990)
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- Date
- 22. 7.2006 18:55:29
-
Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990)
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- Date
- 22. 7.2006 18:55:55
-
Li, T.-C.: Reference sources in periodicals : research note (1995)
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- Abstract
- Presents a list of 53 periodicals in 22 subject fields which regularly provide bibliographies of theses, research in progress and patents in their particular subject field. The fields of business, economics, history and literature have most periodical listings of dissertations and theses. Also lists 63 periodicals in 25 sub-disciplines which provide rankings or ratings. Rankings and ratings information predominates in the fields of business, sports and games, finance and banking, and library and information science
-
Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996)
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- Footnote
- Report presented at the 16th National Indian Association of Special Libraries and Information Centres Seminar Special Interest Group Meeting on Informatrics in Bombay, 19-22 Dec 94
-
Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96)
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- Source
- Library focus. 13/14(1995/96), S.22-25
-
Chongde, W.; Zhe, W.: Evaluation of the models for Bradford's law (1998)
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- Date
- 22. 5.1999 19:12:28
-
Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998)
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- Date
- 22. 5.1999 19:26:54
-
Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998)
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- Date
- 30. 1.1999 17:22:22
-
Neth, M.: Citation analysis and the Web (1998)
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- Date
- 10. 1.1999 16:22:37
-
Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997)
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- Source
- International forum on information and documentation. 22(1997) no.3, S.38-44
