{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T13:32:27Z","timestamp":1767706347623},"reference-count":22,"publisher":"Springer Science and Business Media LLC","issue":"5-6","license":[{"start":{"date-parts":[[1989,5,1]],"date-time":"1989-05-01T00:00:00Z","timestamp":609984000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Scientometrics"],"published-print":{"date-parts":[[1989,5]]},"DOI":"10.1007\/bf02017071","type":"journal-article","created":{"date-parts":[[2005,8,12]],"date-time":"2005-08-12T02:26:54Z","timestamp":1123813614000},"page":"563-591","source":"Crossref","is-referenced-by-count":12,"title":["Teletraffic conferences: Studying a field of engineering science"],"prefix":"10.1007","volume":"15","author":[{"given":"E.","family":"Kranakis","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L.","family":"Leydesdorff","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","reference":[{"key":"BF02017071_CR1","first-page":"22","volume":"5","author":"L. Leydesdorff","year":"1987","unstructured":"L. LEYDESDORFF, P. v.d. SCHAAR, The use of scientometric methods for evaluating national research programs,Science & Technology Studies, 5 (1987) 22\u201331.","journal-title":"Science & Technology Studies"},{"key":"BF02017071_CR2","unstructured":"\u201cL'id\u00e9e de nous r\u00e9unir pouvait na\u00eetre bien des raisons. Je soulignerais peut-\u00eatre celle-ci que beaucoup de publications concernant la T\u00e9l\u00e9phonie se trouvent dans des revues techniques dont la diffusion n'est pas aussi large que celle des p\u00e9riodiques scientifiques g\u00e9n\u00e9raux;\u201d, Opening SpeechR. Fortet, ITC 1, June 20, 1955 (reprinted inTeleteknik, 1957, p. 6)."},{"key":"BF02017071_CR3","doi-asserted-by":"crossref","unstructured":"L. LEYDESDORFF, Words and co-Words as indicators of intellectual organization,Research Policy, 18 (1989, fothcoming).","DOI":"10.1016\/0048-7333(89)90016-4"},{"key":"BF02017071_CR4","unstructured":"The data were kindly provided to us by Dr.W. S. Hayward from Bell Laboratories who prepared an index of these conferences in 1984."},{"key":"BF02017071_CR5","doi-asserted-by":"crossref","unstructured":"This matrix includes the so-called co-word matrix, since a co-word link between two documents means in our matrix two ones in two same columns. (A. RIP, j.-P. COURTIAL, Co-word maps of biotechnology. An example of cognitive scientometrics,Scientometrics, 6 (1984) 381\u2013400; LEYDESDORFF, 1989.Op. cit., note 3. Words and co-Words as indicators of intellectual organization,Research Policy, 18 (1989, fothcoming)).","DOI":"10.1007\/BF02025827"},{"key":"BF02017071_CR6","first-page":"105","volume-title":"Informetrics 87\/88","author":"L. Leydesdorff","year":"1988","unstructured":"The conference distribution was saved as a subfile-structure. All factor structures have been analyzed both with orthogonal and oblique rotations- the latter to check for inter-factor correlations. When not indicated differently, default solutions are used, i.e., principal factoring with iteration, varimax rotation, and inclusion of factors with eigenvalue 1. For clustering Wards' mode of analysis was used with the cosine as similarity coefficient. See for further methodological details: L. LEYDESDORFF, R. ZAAL, Co-words and citations. Relations between document sets and environments, in: L. EGGHE, R. ROUSSEAU (Eds),Informetrics 87\/88, Elsevier, Amsterdam, 1988, pp. 105\u2013119."},{"key":"BF02017071_CR7","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1007\/BF02279351","volume":"11","author":"L. Leydesdorff","year":"1987","unstructured":"Analytically, in explorative research factor analysis is the stronger instrument. In the result of a cluster analysis a case has to be a attributed to a cluster, while factor analysis allows a variable to load on more than one dimension. Moreover, the rotation of the eigenvectors allows for a better understanding of underlying structures than from (unrotated) principal component analysis. (L. LEYDESDORFF, Various methods for the mapping of science,Scientometrics, 11 (1987) 291\u2013324).","journal-title":"Scientometrics"},{"key":"BF02017071_CR8","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1177\/016555158400900201","volume":"9","author":"J.-P. Courtial","year":"1984","unstructured":"J.-P. COURTIAL, M. CALLON, M. SIGOGNEAU, Is indexing trustworthy? Classification of article through co-word analysis,Journal of Information Science, 9 (1984) 47\u201356.","journal-title":"Journal of Information Science"},{"key":"BF02017071_CR9","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1108\/eb026562","volume":"29","author":"G. Salton","year":"1973","unstructured":"It has been noted that, for the purpose of automatic indexing, mainly words with middle-range frequencies have positive \u2018term discriminations values\u2019 among documents. (The Terms Discrimination Value measures the degree to which the use of a terms will help to distinguish the documents from each other. See, for example: G. SALTON, C. S. YANG, On the specification of term values in automatic indexing,Journal of Documentation, 29 (1973) 351\u2013372.","journal-title":"Journal of Documentation"},{"key":"BF02017071_CR10","unstructured":"W. S. HAYWARD, personal letter, June 23, 1987."},{"key":"BF02017071_CR11","unstructured":"\u201cLoss Formula for Homogeneous Gradings of the Second Order in Telephone Switching Employing Random Hunting,\u201d \u201cDetermination of the Traffic-Carrying Properties of Grading with the Aid of some Derivative-Parameters of Telephone Traffic Distribution Functions.\u201d"},{"key":"BF02017071_CR12","doi-asserted-by":"crossref","unstructured":"The symmetrical co-word matrix can be derived from this matrix as a specific selection. See note 6. (A. RIP, j.-P. COURTIAL, Co-word maps of biotechnology. An example of cognitive scientometrics,Scientometrics, 6 (1984) 381\u2013400;","DOI":"10.1007\/BF02025827"},{"key":"BF02017071_CR13","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1108\/eb026562","volume":"29","author":"G. Salton","year":"1973","unstructured":"See also the discussion of \u2018term discrimination value\u2019 in note 13. G. SALTON, C. S. YANG, On the specification of term values in automatic indexing,Journal of Documentation, 29 (1973) 351\u2013372.","journal-title":"Journal of Documentation"},{"key":"BF02017071_CR14","unstructured":"The precise mathematical question is how much the random assignment of a (n+1)th variable disturbs the cluster structure of the cases, and further, how many such variables can be added without grossly distorting the structure."},{"key":"BF02017071_CR15","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1002\/asi.4630200106","volume":"20","author":"M. E. Lesk","year":"1969","unstructured":"See, for example: M. E. LESK, Word-word associations in document retrieval systems,American Documentation, 20 (1969) 27\u201338.","journal-title":"American Documentation"},{"key":"BF02017071_CR16","first-page":"497","volume-title":"The Sociology of Science","author":"H. Zuckerman","year":"1973","unstructured":"See about codification in science: H. ZUCKERMAN, R. K. MERTON, Age, aging, and age structure in science, in: R. K. MERTON,The Sociology of Science, University of Chicago Press, Chicago, 1973, pp. 497\u2013559; S. COLE, The hierarchy of the sciences?.,American Journal of Sociology, 89 (1983) 111\u2013139."},{"key":"BF02017071_CR17","unstructured":"In a study of a set of journal article, we found, for example, \u2018oxidative phosphorylation,\u2019 \u2018chemiosmosis,\u2019, \u2018squiggles,\u2019 \u2018high energy intermediates,\u2019 \u2018localized chemiosmosis,\u2019 \u2018mosaic thermodynamics\u2019 as word which indicate essentially the same problem of energy transfer over biological membranes from different theroetical approaches. Cf. LEYDESDORFF, 1987.Op. cit., note 3. Words and co-Words as indicators of intellectual organization,Research Policy, 18 (1989, fothcoming)."},{"key":"BF02017071_CR18","unstructured":"Authors nowadays choose title-words for articles in scientific journals most carefully with respect to indexing and abstract services. (See: LEYDESDORFF, 1989.Op. cit., note 3). Words and co-Words as indicators of intellectual organization,Research Policy, 18 (1989, fothcoming)). However, in the field of computer science, for example, conferences have become as important a context for scientific exchange as journals and papers accepted for the important international computer science conferences (which occur annually and are published) have a status equal to that of journal publications. Accordingly, the titles of conference papers are as carefully chosen as those for journal articles."},{"key":"BF02017071_CR19","unstructured":"Jens Arhnung and Villy Baek Iversen, Erik Brockmeyer and the Teletraffic Theory,ITC, 11 (1985)."},{"key":"BF02017071_CR20","doi-asserted-by":"crossref","unstructured":"J. W. COHEN, Some aspects of queueing theory,ITC, 7 (1973). See also J. W. COHEN, O. J. BOXMA, A survey of the evolution of queueing theory,Statistica Neerlandica, 39 (1985) 143\u2013158.","DOI":"10.1111\/j.1467-9574.1985.tb01134.x"},{"key":"BF02017071_CR21","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1021\/ci00050a003","volume":"26","author":"W. S. Lyon","year":"1986","unstructured":"W. S. LYON, Scientometrics with some emphasis on communication as scientific meeting and through the \u201cInvisible College\u201d,Journal of Chemical Information and Computer Sciences,26 (1986) 47\u201352. We would like to thank RonaldRousseau for calling our attention to this article.","journal-title":"Journal of Chemical Information and Computer Sciences"},{"key":"BF02017071_CR22","first-page":"22","volume":"5","author":"L. Leydesdorff","year":"1987","unstructured":"See about the limitations of the use of engineering journals to this purpose: L. LEYDESDORFF, P. V. d. Schaar, 1987.Op. cit., note 1..","journal-title":"Science & Technology Studies"}],"container-title":["Scientometrics"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/BF02017071.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/BF02017071\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/BF02017071","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,15]],"date-time":"2021-07-15T10:34:37Z","timestamp":1626345277000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/BF02017071"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1989,5]]},"references-count":22,"journal-issue":{"issue":"5-6","published-print":{"date-parts":[[1989,5]]}},"alternative-id":["BF02017071"],"URL":"https:\/\/doi.org\/10.1007\/bf02017071","relation":{},"ISSN":["0138-9130","1588-2861"],"issn-type":[{"value":"0138-9130","type":"print"},{"value":"1588-2861","type":"electronic"}],"subject":[],"published":{"date-parts":[[1989,5]]}}}