Search (47 results, page 1 of 3)

0.049971286 = product of:
  0.19988514 = sum of:
    0.19988514 = sum of:
      0.11839595 = weight(_text_:project in 6158) [ClassicSimilarity], result of:
        0.11839595 = score(doc=6158,freq=2.0), product of:
          0.21156175 = queryWeight, product of:
            4.220981 = idf(docFreq=1764, maxDocs=44218)
            0.050121464 = queryNorm
          0.5596283 = fieldWeight in 6158, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.220981 = idf(docFreq=1764, maxDocs=44218)
            0.09375 = fieldNorm(doc=6158)
      0.0814892 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
        0.0814892 = score(doc=6158,freq=2.0), product of:
          0.17551683 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.050121464 = queryNorm
          0.46428138 = fieldWeight in 6158, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.09375 = fieldNorm(doc=6158)
  0.25 = coord(1/4)

Footnote

Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)

0.035560437 = product of:
  0.07112087 = sum of:
    0.054143958 = weight(_text_:library in 5784) [ClassicSimilarity], result of:
      0.054143958 = score(doc=5784,freq=16.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.4108404 = fieldWeight in 5784, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5784)
    0.016976917 = product of:
      0.033953834 = sum of:
        0.033953834 = weight(_text_:22 in 5784) [ClassicSimilarity], result of:
          0.033953834 = score(doc=5784,freq=2.0), product of:
            0.17551683 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050121464 = queryNorm
            0.19345059 = fieldWeight in 5784, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5784)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

This study examined Library of Congress Classification (LCC)-based class numbers assigned to a representative sample of 200 titles in 52 American library systems to determine the level of consistency within and across those systems. The results showed that under the condition that a library system has a title, the probability of that title having the same LCC-based class number across library systems is greater than 85 percent. An examination of 121 titles displaying variations in class numbers among library systems showed certain titles (for example, multi-foci titles, titles in series, bibliographies, and fiction) lend themselves to alternate class numbers. Others were assigned variant numbers either due to latitude in the schedules or for reasons that cannot be pinpointed. With increasing dependence on copy cataloging, the size of such variations may continue to decrease. As the preferred class number with its alternates represents a title more fully than just the preferred class number, this paper argues for continued use of alternates by library systems and for finding a method to link alternate class numbers to preferred class numbers for enriched subject access through local and union catalogs.

Date

10. 9.2000 17:38:22

Source

Library resources and technical services. 50(2006) no.2, S.111-119

0.03097736 = product of:
  0.06195472 = sum of:
    0.027071979 = weight(_text_:library in 4488) [ClassicSimilarity], result of:
      0.027071979 = score(doc=4488,freq=4.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.2054202 = fieldWeight in 4488, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4488)
    0.034882743 = product of:
      0.069765486 = sum of:
        0.069765486 = weight(_text_:project in 4488) [ClassicSimilarity], result of:
          0.069765486 = score(doc=4488,freq=4.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.32976416 = fieldWeight in 4488, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4488)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

Purpose - This paper seeks to report a project to investigate the degree of inter-indexer consistency in the assignment of controlled vocabulary topical subject index terms to identical graphical images by different indexers at the National Library of Wales (NLW). Design/methodology/approach - An experimental quantitative methodology was devised to investigate inter-indexer consistency. Additionally, the project investigated the relationship, if any, between indexing exhaustivity and consistency, and the relationship, if any, between indexing consistency/exhaustivity and broad category of graphic format. Findings - Inter-indexer consistency in the assignment of topical subject index terms to graphic materials at the NLW was found to be generally low and highly variable. Inter-indexer consistency fell within the range 10.8 per cent to 48.0 per cent. Indexing exhaustivity varied substantially from indexer to indexer, with a mean assignment of 3.8 terms by each indexer to each image, falling within the range 2.5 to 4.7 terms. The broad category of graphic format, whether photographic or non-photographic, was found to have little influence on either inter-indexer consistency or indexing exhaustivity. Indexing exhaustivity and inter-indexer consistency exhibited a tendency toward a direct, positive relationship. The findings are necessarily limited as this is a small-scale study within a single institution. Originality/value - Previous consistency studies have almost exclusively investigated the indexing of print materials, with very little research published for non-print media. With the literature also rich in discussion of the added complexities of subjectively representing the intellectual content of visual media, this study attempts to enrich existing knowledge on indexing consistency for graphic materials and to address a noticeable gap in information theory.

0.030834224 = product of:
  0.06166845 = sum of:
    0.03790077 = weight(_text_:library in 230) [ClassicSimilarity], result of:
      0.03790077 = score(doc=230,freq=4.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.28758827 = fieldWeight in 230, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0546875 = fieldNorm(doc=230)
    0.023767682 = product of:
      0.047535364 = sum of:
        0.047535364 = weight(_text_:22 in 230) [ClassicSimilarity], result of:
          0.047535364 = score(doc=230,freq=2.0), product of:
            0.17551683 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050121464 = queryNorm
            0.2708308 = fieldWeight in 230, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=230)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

This study represents an attempt to compare indexing consistency between the catalogers of the National Library of Iran (NLI) on one side and 12 major academic and special libraries located in Tehran on the other. The research findings indicate that in 75% of the libraries the subject inconsistency values are 60% to 85%. In terms of subject classes, the consistency values are 10% to 35.2%, the mean of which is 22.5%. Moreover, the findings show that whenever the number of assigned terms increases, the probability of consistency decreases. This confirms Markey's findings in 1984.

Date

4. 1.2007 10:22:26

0.028895756 = product of:
  0.057791512 = sum of:
    0.030628446 = weight(_text_:library in 7247) [ClassicSimilarity], result of:
      0.030628446 = score(doc=7247,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.23240642 = fieldWeight in 7247, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0625 = fieldNorm(doc=7247)
    0.027163066 = product of:
      0.054326132 = sum of:
        0.054326132 = weight(_text_:22 in 7247) [ClassicSimilarity], result of:
          0.054326132 = score(doc=7247,freq=2.0), product of:
            0.17551683 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050121464 = queryNorm
            0.30952093 = fieldWeight in 7247, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=7247)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Source

Canadian journal of information and library science. 21(1996) no.2, S.1-22

0.024370763 = product of:
  0.097483054 = sum of:
    0.097483054 = weight(_text_:digital in 4783) [ClassicSimilarity], result of:
      0.097483054 = score(doc=4783,freq=4.0), product of:
        0.19770671 = queryWeight, product of:
          3.944552 = idf(docFreq=2326, maxDocs=44218)
          0.050121464 = queryNorm
        0.493069 = fieldWeight in 4783, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.944552 = idf(docFreq=2326, maxDocs=44218)
          0.0625 = fieldNorm(doc=4783)
  0.25 = coord(1/4)

Source

Challenges and opportunities for knowledge organization in the digital age: proceedings of the Fifteenth International ISKO Conference, 9-11 July 2018, Porto, Portugal / organized by: International Society for Knowledge Organization (ISKO), ISKO Spain and Portugal Chapter, University of Porto - Faculty of Arts and Humanities, Research Centre in Communication, Information and Digital Culture (CIC.digital) - Porto. Eds.: F. Ribeiro u. M.E. Cerveira

0.019732658 = product of:
  0.07893063 = sum of:
    0.07893063 = product of:
      0.15786126 = sum of:
        0.15786126 = weight(_text_:project in 2261) [ClassicSimilarity], result of:
          0.15786126 = score(doc=2261,freq=2.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.74617106 = fieldWeight in 2261, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.125 = fieldNorm(doc=2261)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

0.019732658 = product of:
  0.07893063 = sum of:
    0.07893063 = product of:
      0.15786126 = sum of:
        0.15786126 = weight(_text_:project in 2269) [ClassicSimilarity], result of:
          0.15786126 = score(doc=2269,freq=2.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.74617106 = fieldWeight in 2269, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.125 = fieldNorm(doc=2269)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

0.019732658 = product of:
  0.07893063 = sum of:
    0.07893063 = product of:
      0.15786126 = sum of:
        0.15786126 = weight(_text_:project in 2741) [ClassicSimilarity], result of:
          0.15786126 = score(doc=2741,freq=2.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.74617106 = fieldWeight in 2741, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.125 = fieldNorm(doc=2741)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

0.018756017 = product of:
  0.07502407 = sum of:
    0.07502407 = weight(_text_:library in 2277) [ClassicSimilarity], result of:
      0.07502407 = score(doc=2277,freq=12.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.56927717 = fieldWeight in 2277, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0625 = fieldNorm(doc=2277)
  0.25 = coord(1/4)

Abstract

Indexing consistency between Library of Congress and British Library catalogers using the LCSH is compared.82 titles published in 1987 in the field of library and information science were identified for comparison, and for each title its LC subject headings, assigned by both LC and BL catalogers, were compared. By applying Hooper's 'consistency of a pair' equation, the average indexing consistency value was calculated for the 82 titles. The average indexing value between LC and BL catalogers is 16% for exact matches, and 36% for partial matches

Source

Library resources and technical services. 35(1991), S.177-185

0.017266076 = product of:
  0.069064304 = sum of:
    0.069064304 = product of:
      0.13812861 = sum of:
        0.13812861 = weight(_text_:project in 5363) [ClassicSimilarity], result of:
          0.13812861 = score(doc=5363,freq=2.0), product of:
            0.21156175 = queryWeight, product of:
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.050121464 = queryNorm
            0.6528997 = fieldWeight in 5363, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.220981 = idf(docFreq=1764, maxDocs=44218)
              0.109375 = fieldNorm(doc=5363)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

0.01550234 = product of:
  0.03100468 = sum of:
    0.024213914 = weight(_text_:library in 1858) [ClassicSimilarity], result of:
      0.024213914 = score(doc=1858,freq=20.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.18373342 = fieldWeight in 1858, product of:
          4.472136 = tf(freq=20.0), with freq of:
            20.0 = termFreq=20.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.015625 = fieldNorm(doc=1858)
    0.0067907665 = product of:
      0.013581533 = sum of:
        0.013581533 = weight(_text_:22 in 1858) [ClassicSimilarity], result of:
          0.013581533 = score(doc=1858,freq=2.0), product of:
            0.17551683 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050121464 = queryNorm
            0.07738023 = fieldWeight in 1858, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.015625 = fieldNorm(doc=1858)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Date

22. 9.1997 19:16:05

Footnote

Rez. in JASIST 54(2003) no.4, S.356-357 (S.J. Lincicum): "Reliance upon shared cataloging in academic libraries in the United States has been driven largely by the need to reduce the expense of cataloging operations without muck regard for the Impact that this approach might have an the quality of the records included in local catalogs. In recent years, ever increasing pressures have prompted libraries to adopt practices such as "rapid" copy cataloging that purposely reduce the scrutiny applied to bibliographic records downloaded from shared databases, possibly increasing the number of errors that slip through unnoticed. Errors in bibliographic records can lead to serious problems for library catalog users. If the data contained in bibliographic records is inaccurate, users will have difficulty discovering and recognizing resources in a library's collection that are relevant to their needs. Thus, it has become increasingly important to understand the extent and nature of errors that occur in the records found in large shared bibliographic databases, such as OCLC WorldCat, to develop cataloging practices optimized for the shared cataloging environment. Although this monograph raises a few legitimate concerns about recent trends in cataloging practice, it fails to provide the "detailed look" at misinformation in library catalogs arising from linguistic errors and mistakes in subject analysis promised by the publisher. A basic premise advanced throughout the text is that a certain amount of linguistic and subject knowledge is required to catalog library materials effectively. The author emphasizes repeatedly that most catalogers today are asked to catalog an increasingly diverse array of materials, and that they are often required to work in languages or subject areas of which they have little or no knowledge. He argues that the records contributed to shared databases are increasingly being created by catalogers with inadequate linguistic or subject expertise. This adversely affects the quality of individual library catalogs because errors often go uncorrected as records are downloaded from shared databases to local catalogs by copy catalogers who possess even less knowledge. Calling misinformation an "evil phenomenon," Bade states that his main goal is to discuss, "two fundamental types of misinformation found in bibliographic and authority records in library catalogs: that arising from linguistic errors, and that caused by errors in subject analysis, including missing or wrong subject headings" (p. 2). After a superficial discussion of "other" types of errors that can occur in bibliographic records, such as typographical errors and errors in the application of descriptive cataloging rules, Bade begins his discussion of linguistic errors. He asserts that sharing bibliographic records created by catalogers with inadequate linguistic or subject knowledge has, "disastrous effects an the library community" (p. 6). To support this bold assertion, Bade provides as evidence little more than a laundry list of errors that he has personally observed in bibliographic records over the years. When he eventually cites several studies that have addressed the availability and quality of records available for materials in languages other than English, he fails to describe the findings of these studies in any detail, let alone relate the findings to his own observations in a meaningful way. Bade claims that a lack of linguistic expertise among catalogers is the "primary source for linguistic misinformation in our databases" (p. 10), but he neither cites substantive data from existing studies nor provides any new data regarding the overall level of linguistic knowledge among catalogers to support this claim. The section concludes with a brief list of eight sensible, if unoriginal, suggestions for coping with the challenge of cataloging materials in unfamiliar languages.
Arguing that catalogers need to work both quickly and accurately, Bade maintains that employing specialists is the most efficient and effective way to achieve this outcome. Far less compelling than these arguments are Bade's concluding remarks, in which he offers meager suggestions for correcting the problems as he sees them. Overall, this essay is little more than a curmudgeon's diatribe. Addressed primarily to catalogers and library administrators, the analysis presented is too superficial to assist practicing catalogers or cataloging managers in developing solutions to any systemic problems in current cataloging practice, and it presents too little evidence of pervasive problems to convince budget-conscious library administrators of a need to alter practice or to increase their investment in local cataloging operations. Indeed, the reliance upon anecdotal evidence and the apparent nit-picking that dominate the essay might tend to reinforce a negative image of catalogers in the minds of some. To his credit, Bade does provide an important reminder that it is the intellectual contributions made by thousands of erudite catalogers that have made shared cataloging a successful strategy for improving cataloging efficiency. This is an important point that often seems to be forgotten in academic libraries when focus centers an cutting costs. Had Bade focused more narrowly upon the issue of deintellectualization of cataloging and written a carefully structured essay to advance this argument, this essay might have been much more effective." - KO 29(2002) nos.3/4, S.236-237 (A. Sauperl)

Imprint

Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science

0.015314223 = product of:
  0.061256893 = sum of:
    0.061256893 = weight(_text_:library in 2266) [ClassicSimilarity], result of:
      0.061256893 = score(doc=2266,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.46481284 = fieldWeight in 2266, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.125 = fieldNorm(doc=2266)
  0.25 = coord(1/4)

Source

Library quarterly. 35(1965), S.1-20

0.015314223 = product of:
  0.061256893 = sum of:
    0.061256893 = weight(_text_:library in 2337) [ClassicSimilarity], result of:
      0.061256893 = score(doc=2337,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.46481284 = fieldWeight in 2337, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.125 = fieldNorm(doc=2337)
  0.25 = coord(1/4)

Source

Library quarterly. 41(1971), S.223-228

0.015314223 = product of:
  0.061256893 = sum of:
    0.061256893 = weight(_text_:library in 4153) [ClassicSimilarity], result of:
      0.061256893 = score(doc=4153,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.46481284 = fieldWeight in 4153, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.125 = fieldNorm(doc=4153)
  0.25 = coord(1/4)

Source

International library review. 20(1988), S.101-110

0.013399946 = product of:
  0.053599782 = sum of:
    0.053599782 = weight(_text_:library in 2308) [ClassicSimilarity], result of:
      0.053599782 = score(doc=2308,freq=8.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.40671125 = fieldWeight in 2308, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2308)
  0.25 = coord(1/4)

Abstract

The LCC and DDC systems were devised and updated by librarians who had and have no access to the eventual frequency of use of each number in those classification systems. 80% of the monographs in a MARC file of over 1.000.000 records are classified into 20% of the classification numbers in the field of library science and only 20% of the mongraphs are classified into 80% of the classification numbers in the field of library science. Classification of monographs coulld be made easier and performed more accurately if many of the little used and unused numbers were eliminated and many of the most crowded numbers were expanded. A number of examples are included

0.013399946 = product of:
  0.053599782 = sum of:
    0.053599782 = weight(_text_:library in 7494) [ClassicSimilarity], result of:
      0.053599782 = score(doc=7494,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.40671125 = fieldWeight in 7494, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.109375 = fieldNorm(doc=7494)
  0.25 = coord(1/4)

Imprint

Urbana-Champaign, IL : Graduate School of Library Science, University of Illinois

0.0132625075 = product of:
  0.05305003 = sum of:
    0.05305003 = weight(_text_:library in 555) [ClassicSimilarity], result of:
      0.05305003 = score(doc=555,freq=6.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.40253976 = fieldWeight in 555, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0625 = fieldNorm(doc=555)
  0.25 = coord(1/4)

Abstract

This article discusses indexing practices at the National Agriculture Library. Indexers at NAL scan over 2,200 incoming journals for input into its bibliographic database, AGRICOLA. The National Agriculture Library's coverage extends worldwide covering a broad range of agriculture subjects. Access to AGRICOLA occurs in several ways: onsite search, commercial vendors, Dialog Information Services, Inc. and BRS Information Technologies. The National Agricultural Library uses CAB THESAURUS to describe the subject content of articles in AGRICOLA.

0.012185382 = product of:
  0.048741527 = sum of:
    0.048741527 = weight(_text_:digital in 2159) [ClassicSimilarity], result of:
      0.048741527 = score(doc=2159,freq=4.0), product of:
        0.19770671 = queryWeight, product of:
          3.944552 = idf(docFreq=2326, maxDocs=44218)
          0.050121464 = queryNorm
        0.2465345 = fieldWeight in 2159, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.944552 = idf(docFreq=2326, maxDocs=44218)
          0.03125 = fieldNorm(doc=2159)
  0.25 = coord(1/4)

Abstract

Crowdsourcing has emerged as a way to harvest social wisdom from thousands of volunteers to perform a series of tasks online. However, little research has been devoted to exploring the impact of various factors such as the content of a resource or crowdsourcing interface design on user tagging behavior. Although images' titles and descriptions are frequently available in image digital libraries, it is not clear whether they should be displayed to crowdworkers engaged in tagging. This paper focuses on offering insight to the curators of digital image libraries who face this dilemma by examining (i) how descriptions influence the user in his/her tagging behavior and (ii) how this relates to the (a) nature of the tags, (b) the emergent folksonomy, and (c) the findability of the images in the tagging system. We compared two different methods for collecting image tags from Amazon's Mechanical Turk's crowdworkers-with and without image descriptions. Several properties of generated tags were examined from different perspectives: diversity, specificity, reusability, quality, similarity, descriptiveness, and so on. In addition, the study was carried out to examine the impact of image description on supporting users' information seeking with a tag cloud interface. The results showed that the properties of tags are affected by the crowdsourcing approach. Tags from the "with description" condition are more diverse and more specific than tags from the "without description" condition, while the latter has a higher tag reuse rate. A user study also revealed that different tag sets provided different support for search. Tags produced "with description" shortened the path to the target results, whereas tags produced without description increased user success in the search task.

0.011485667 = product of:
  0.045942668 = sum of:
    0.045942668 = weight(_text_:library in 1999) [ClassicSimilarity], result of:
      0.045942668 = score(doc=1999,freq=2.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.34860963 = fieldWeight in 1999, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.09375 = fieldNorm(doc=1999)
  0.25 = coord(1/4)

Source

Library journal. 116(1991) no.6, S.42-47