Logarithmic transformation of the data has been recommended by the literature in the case of highly skewed distributions such as those commonly found in information science. The purpose of the transformation is to make the data conform to the lognormal law of error for inferential purposes. How does this transformation affect the analysis? We factor analyze and visualize the citation environment of the Journal of the American Chemical Society (JACS) before and after a logarithmic transformation. The transformation strongly reduces the variance necessary for classificatory purposes and therefore is counterproductive to the purposes of the descriptive statistics. We recommend against the logarithmic transformation when sets cannot be defined unambiguously. The intellectual organization of the sciences is reflected in the curvilinear parts of the citation distributions while negative powerlaws fit excellently to the tails of the distributions.
This paper explores the ISI Journal Citation Reports (JCR) bibliographic and subject structures through Library of Congress (LC) and American research libraries cataloging and classification methodology. The 2006Science Citation Index JCR Behavioral Sciences subject category journals are used as an example. From the library perspective, the main fault of the JCR bibliographic structure is that the JCR mistakenly identifies journal title segments as journal bibliographic entities, seriously affecting journal rankings by total cites and the impact factor. In respect to JCR subject structure, the title segment, which constitutes the JCR bibliographic basis, is posited as the best bibliographic entity for the citation measurement of journal subject relationships. Through factor analysis and other methods, the JCR subject categorization of journals is tested against their LC subject headings and classification. The finding is that JCR and library journal subject analyses corroborate, clarify, and correct each other.
The ProblemJournals present complex problems of bibliographic control. Bibliographic control is the process of creating, organizing, managing, and maintaining a file of bibliographic records representing the items held in a library or the sources listed in an index or database to facilitate access to the information in them. It requires standardizing bibliographic description by means of uniform catalog codes, classification systems, name authority files, and preferred headings. In terms of function, bibliographic control can be divided
In t_his pape1 we analyze the structure of thelibrary murketfor.s:ientific and technical (ST) serials. The anahlsis takes the fonn of un exbrci,se aimed at u theoretical reconstnrction ofthe ST serials ho[dl."gt n7 fSU Libruries after almost a rlecutle of massioe cancellations antl u policrl of a&Iing no niu subscription's. This exercise toas done in conjunciion rtith the Louisiana state Projeit (SRP), ancl it utilized an experie Serials Eouluutor. Much of the poTter is initions, meusures, and algorithms nece.sil,:'# "' ;ff: #::,: jJ :r?#' ;.," e, an,t u; e , he strengths andweukni,sses of faculty rutings Chemi.stry pluyedthe role of the test discipline, and other ii flelds"uere inacstigured to tlelermine whether the protess'es uffecr.ing chemisiru are ul.so uctioe inthem. We deoelop thehypothe,iis that humun knowletlgefunctions on the sume_prypabilittl stnrcture is biological nature und societll.' iVe show that this probubility structure results in the highlq skeued, stabie distributions thul churocterize the social strdificution ,sqste"m of science ttnd technology trs wcll rs of the serials sqstem bu.sid upon it'.' science andtechnology are seen inthis paper us dominatedbq stable elites, who tentl to center rround IratlitionuLlq pristigious institutions ttnd Ttublish their work in IJ.s. ussociution journals.'Consequentlq,IJ.s. ttssocitttion sertrtls huue higher sr.uulue, urultheq plaq tt tlomin'ant roie not onltl in internallihrurq use hur also in i.nterlibnr;i lod;. Due to their higher ST o'tilue, U. S. zrssr> ciution journals can be sokl to librarie.s in greuter numbers at cheaper pri,ces than the jountuls of commercitLl publishers, anrl thi.s carLses the'sr ierluts mtrkel to bifurufte, with sr aulue tantlingto concentrtfte onrhe u.s. ussoci.-tion serials ancl costs on the commerciul ones.As a resub of thehlghly skewed, stable nuture of the ST serials sqstem,the
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