Search (1431 results, page 1 of 72)

0.2671702 = sum of:
  0.22879848 = product of:
    0.6863954 = sum of:
      0.6863954 = weight(_text_:22nd in 4594) [ClassicSimilarity], result of:
        0.6863954 = score(doc=4594,freq=4.0), product of:
          0.49882734 = queryWeight, product of:
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.056642987 = queryNorm
          1.376018 = fieldWeight in 4594, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.078125 = fieldNorm(doc=4594)
    0.33333334 = coord(1/3)
  0.038371716 = product of:
    0.07674343 = sum of:
      0.07674343 = weight(_text_:22 in 4594) [ClassicSimilarity], result of:
        0.07674343 = score(doc=4594,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.38690117 = fieldWeight in 4594, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=4594)
    0.5 = coord(1/2)

Abstract

This work has been fully updated for the 22nd edition of DDC, and is used as reference for the application of Dewey coding or as a course text in the Dewey System

Object

DDC-22

0.12881139 = product of:
  0.25762278 = sum of:
    0.25762278 = sum of:
      0.18087934 = weight(_text_:90 in 4914) [ClassicSimilarity], result of:
        0.18087934 = score(doc=4914,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.5939829 = fieldWeight in 4914, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.078125 = fieldNorm(doc=4914)
      0.07674343 = weight(_text_:22 in 4914) [ClassicSimilarity], result of:
        0.07674343 = score(doc=4914,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.38690117 = fieldWeight in 4914, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=4914)
  0.5 = coord(1/2)

Date

22. 7.2000 16:37:12

Pages

S.81-90

0.12881139 = product of:
  0.25762278 = sum of:
    0.25762278 = sum of:
      0.18087934 = weight(_text_:90 in 3250) [ClassicSimilarity], result of:
        0.18087934 = score(doc=3250,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.5939829 = fieldWeight in 3250, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.078125 = fieldNorm(doc=3250)
      0.07674343 = weight(_text_:22 in 3250) [ClassicSimilarity], result of:
        0.07674343 = score(doc=3250,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.38690117 = fieldWeight in 3250, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=3250)
  0.5 = coord(1/2)

Date

6. 6.2005 20:11:22

Source

CD-Info. 2005, H.7, S.90-93

0.1129871 = sum of:
  0.08996408 = product of:
    0.26989222 = sum of:
      0.26989222 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
        0.26989222 = score(doc=562,freq=2.0), product of:
          0.48021987 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.056642987 = queryNorm
          0.56201804 = fieldWeight in 562, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.046875 = fieldNorm(doc=562)
    0.33333334 = coord(1/3)
  0.023023028 = product of:
    0.046046056 = sum of:
      0.046046056 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
        0.046046056 = score(doc=562,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.23214069 = fieldWeight in 562, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046875 = fieldNorm(doc=562)
    0.5 = coord(1/2)

Content

Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.

Date

8. 1.2013 10:22:32

0.10532279 = sum of:
  0.064713985 = product of:
    0.19414194 = sum of:
      0.19414194 = weight(_text_:22nd in 1842) [ClassicSimilarity], result of:
        0.19414194 = score(doc=1842,freq=2.0), product of:
          0.49882734 = queryWeight, product of:
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.056642987 = queryNorm
          0.38919666 = fieldWeight in 1842, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.03125 = fieldNorm(doc=1842)
    0.33333334 = coord(1/3)
  0.04060881 = product of:
    0.08121762 = sum of:
      0.08121762 = weight(_text_:22 in 1842) [ClassicSimilarity], result of:
        0.08121762 = score(doc=1842,freq=14.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.4094577 = fieldWeight in 1842, product of:
            3.7416575 = tf(freq=14.0), with freq of:
              14.0 = termFreq=14.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=1842)
    0.5 = coord(1/2)

Abstract

A system of library classification that flashed across the inquiring mind of young Melvil Louis Kossuth Dewey (known as Melvil Dewey) in 1873 is still the most popular classification scheme.. The modern library classification begins with Dewey Decimal Classification (DDC). Melvil Dewey devised DDC in 1876. DDC has is credit of 128 years of boudless success. The DDC is being taught as a practical subject throughout the world and it is being used in majority of libraries in about 150 countries. This is the result of continuous revision that 22nd Edition of DDC has been published in July 2003. No other classification scheme has published so many editions. Some welcome changes have been made in DDC 22. To reduce the Christian bias in 200 religion, the numbers 201 to 209 have been devoted to specific aspects of religion. In the previous editions these numbers were devoted to Christianity. to enhance the classifier's efficiency, Table 7 has been removed from DDC 22 and the provision of adding group of persons is made by direct use of notation already available in schedules and in notation -08 from Table 1 Standard Subdivision. The present book is an attempt to explain, with suitable examples, the salient provisions of DDC 22. The book is written in simple language so that the students may not face any difficulty in understanding what is being explained. The examples in the book are explained in a step-by-step procedure. It is hoped that this book will prove of great help and use to the library professionals in general and library and information science students in particular.

Content

1. Introduction to DDC 22 2. Major changes in DDC 22 3. Introduction to the schedules 4. Use of Table 1 : Standard Subdivisions 5. Use of Table 2 : Areas 6. Use of Table 3 : Subdivisions for the arts, for individual literatures, for specific literary forms 7. Use to Table 4 : Subdivisions of individual languages and language families 8. Use of Table 5 : Ethic and National groups 9. Use of Table 6 : Languages 10. Treatment of Groups of Persons

Object

DDC-22

0.08667039 = sum of:
  0.07005495 = product of:
    0.21016483 = sum of:
      0.21016483 = weight(_text_:22nd in 129) [ClassicSimilarity], result of:
        0.21016483 = score(doc=129,freq=6.0), product of:
          0.49882734 = queryWeight, product of:
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.056642987 = queryNorm
          0.4213178 = fieldWeight in 129, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            8.806516 = idf(docFreq=17, maxDocs=44218)
            0.01953125 = fieldNorm(doc=129)
    0.33333334 = coord(1/3)
  0.016615441 = product of:
    0.033230882 = sum of:
      0.033230882 = weight(_text_:22 in 129) [ClassicSimilarity], result of:
        0.033230882 = score(doc=129,freq=6.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.16753313 = fieldWeight in 129, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.01953125 = fieldNorm(doc=129)
    0.5 = coord(1/2)

Footnote

Rez. in: Knowledge organization 31(2004) no.2, S.112-114 (M.P. Satija) : "With nearly 130 years of eventful and checkered history, the Dewey Decimal Classification (DDC) is the oldest living yet thriving modern library classification. Having undergone 21 revisions, it is the most applied library classification structure all over the world. Apart from its use in libraries in more than 135 countries across six continents, many national and trade bibliographies use it for content organization. Furthermore, it is now making successful forays into the world of electronic documents and networked information. The print version of the 22nd edition was released in September 2003, two months later than the scheduled time of July 2003, and two months after the release of the electronic version, WebDewey. The period between print editions now seems settled to seven years as a matter of policy. As WebDewey, an the other hand, is updated an a quarterly basis, what really constitutes a new edition is problematic; edition is rolling, always in a flux without much fixity. The last half century, and more specifically the tenure of Benjamin A. Custer as editor (1956-1980; Editions 16-19), has been an era of structural changes in the DDC, backed by professional management and organizational planning. Custer was instrumental in not only resuscitating the system, but also in putting DDC back an the path of progress. His able successor, Dr. John P. Comaromi, edited the 20`h edition (1989) and ushered in a period of simplification and consolidation. Following the acquisition of Forest Press by OCLC in 1988, much more research has gone into making new editions of the DDC. The OCLC Office of Research has involved itself in classification research, especially in the harmonization of various knowledge classification systems and mapping of DDC numbers to subject headings, above all to make DDC capable of organizing electronic information of every sort. The acquisition of DDC by OCLC has also inaugurated an era of new products and services, along with organized marketing. DDC21 (1996) was a product of high IT, and the 22nd edition can safely be termed a child of network technology. It is indeed the first edition produced in the web environment. To stay abreast of current developments an knowledge practices, the editors relied an the Internet and electronic databases for new topics and terms. Editors and policy makes got constant feedback and suggestions via the Internet to add new features and to achieve accuracy and efficiency. In addition to the feedback and expert advice, this edition, as usual, is based an actual classification of three quarters of a million current books in the Decimal Classification Division of the Library of Congress since 1996.
Changes DDC22 is the second edition prepared by Joan S. Mitchell who took over as editor in 1993. It carries forward the policies and improvements started in DDC21, especially the onslaught an the Christian and western cultural blas in the schedules and tables. The plan for reducing Christian blas in 200 Religion, initiated in DDC21, has now been completed, with some additional provisions in 296 and 297. An outstanding change has been the abrogation of Table 7 Persons. The functions of Table 7 are now filled by using T1-08 and whatever notation is appropriate from 011-999. There are at least six places in the tables and 12 places in the schedules where the use of T7 was prescribed; what good the abolition of T7 has produced is not clear. In fact, it does make number building in some cases a bit circuitous, especially while using Table 3C. It has also resulted in the reuse of many DDC 21 numbers with new meanings. However, some numbers remain the same e.g., Social customs of artists 390.47 (both in DDC21 and DDC22). A few numbers have also become shorter in length. In compliance with the recommendations of D'Elia's survey, all works relating to directories of travel facilities such as hotels, lodges, Motels, inns, have been shifted to 910.46 and to 913/919 whereas 647.94 continues to be in place for general information about hotels. A common practice in previous editions, that is full class or extensive revisions (phoenix schedules), appear to have been discontinued in the preparation of DDC22. But minor changes are numerous. There are more than one thousand relocations and discontiuations of class numbers. Some 40 numbers have been reused. ... However, all these changes are not those projected as slated changes for DDC22 in the DDC21 (1996), namely in 520 Astronomy, 355-359 Military science, 636-639 Animal husbandry and 690 Buildings. Obviously the switch over to the DDC 22 will put less strain an libraries. There has been considerable improvement in the manual, now shifted to volume 1 of the print edition (pp. 1-182). Notes in the manual have been shortened by removing redundant information and by dividing them into smaller sections. Some information from the manual has been transferred to the schedules and tables, in the form of notes. The manual is now clearer and easier to read. Flow Charts, built-in numbers, and see also references should help classifiers achieve greater consistency. The relative index has been beefed up. With its 928 pages, it is 333 pages longer than the previous one, including new built-in numbers and many additional terms. The entry vocabulary is wide-based and current. DDC 22, the first edition of this millennium, has kept pace with the fast changing information environment to map and organize it squarely. To quote our friends at OCLC: knowledge is a big world, and they have organized it."

Issue

22nd ed.

Object

DDC-22

0.077286825 = product of:
  0.15457365 = sum of:
    0.15457365 = sum of:
      0.10852759 = weight(_text_:90 in 2205) [ClassicSimilarity], result of:
        0.10852759 = score(doc=2205,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.3563897 = fieldWeight in 2205, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.046875 = fieldNorm(doc=2205)
      0.046046056 = weight(_text_:22 in 2205) [ClassicSimilarity], result of:
        0.046046056 = score(doc=2205,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.23214069 = fieldWeight in 2205, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046875 = fieldNorm(doc=2205)
  0.5 = coord(1/2)

Abstract

Form subdivisions have always been an important part of the Library of Congress Subject Headings. However, when the MARC format was developed, no separate subfield code to identify form subdivisions was defined. Form and topical subdivisions were both included within a general subdivision category. In 1995, the USMARC Advisory Group approved a proposal defining subfield v for form subdivisions, and in 1999 the Library of Congress (LC) began identifying form subdivisions with the new code. However, there are millions of older bibliographic records lacking the explicit form subdivision coding. Identifying form subdivisions retrospectively is not a simple task. An algorithmic method was developed to identify form subdivisions coded as general subdivisions. The algorithm was used to identify 2,563 unique form subdivisions or combinations of form subdivisions in OCLC's WorldCat. The algorithm proved to be highly accurate with an error rate estimated to be less than 0.1%. The observed usage of the form subdivisions was highly skewed with the 100 most used form subdivisions or combinations of subdivisions accounting for 90% of the assignments.

Date

10. 9.2000 17:38:22

0.07235173 = product of:
  0.14470346 = sum of:
    0.14470346 = product of:
      0.28940693 = sum of:
        0.28940693 = weight(_text_:90 in 4915) [ClassicSimilarity], result of:
          0.28940693 = score(doc=4915,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.9503726 = fieldWeight in 4915, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.125 = fieldNorm(doc=4915)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Pages

90 S.

0.07235173 = product of:
  0.14470346 = sum of:
    0.14470346 = product of:
      0.28940693 = sum of:
        0.28940693 = weight(_text_:90 in 555) [ClassicSimilarity], result of:
          0.28940693 = score(doc=555,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.9503726 = fieldWeight in 555, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.125 = fieldNorm(doc=555)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

OCLC systems and services. 16(2000) no.2, S.84-90

0.07235173 = product of:
  0.14470346 = sum of:
    0.14470346 = product of:
      0.28940693 = sum of:
        0.28940693 = weight(_text_:90 in 4881) [ClassicSimilarity], result of:
          0.28940693 = score(doc=4881,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.9503726 = fieldWeight in 4881, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.125 = fieldNorm(doc=4881)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Online information review. 24(2000) no.1, S.90-93

0.064405695 = product of:
  0.12881139 = sum of:
    0.12881139 = sum of:
      0.09043967 = weight(_text_:90 in 2952) [ClassicSimilarity], result of:
        0.09043967 = score(doc=2952,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.29699144 = fieldWeight in 2952, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2952)
      0.038371716 = weight(_text_:22 in 2952) [ClassicSimilarity], result of:
        0.038371716 = score(doc=2952,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.19345059 = fieldWeight in 2952, 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=2952)
  0.5 = coord(1/2)

Abstract

Literaturflut. Medizinische Forschung gibt es nicht nur in Forschungsinstituten mit vielerlei Spezialgebieten wie Vergiftungen, Krebsforschung, Zellbiologie usw., sondern auch in Universitätsklinika, Spezialkliniken und nicht zuletzt in der pharmazeutischen Industrie. Ärzte sind fleißige Schreiber, die auch über Kasuistiken, retrospektive Auswertungen der Krankenakten, prospektive Erhebungen, klinische Studien und natürlich auch über vielerlei Laborforschung, Versuche mit Zellkulturen und über Tierversuche berichten. Hinzu kommt Literatur von Institutionen und Firmen, die Medizingeräte (z.B. Beatmungsgeräte, Narkosegeräte, chirurgisches Instrumentarium, Röntgengeräte usw.) oder Medizinprodukte (z.B. Verbandsmaterial, Prothesen, Nahtmaterial, orthopädische Hilfen) herstellen. Vermutlich ist die Literaturflut in der Medizin größer als in jedem anderen Fachgebiet. Datenbasen und Datenbanken. Die derzeit wichtigsten Datenbasen für die medizinische Literaturdokumentation sind MEDLINE der US National Library of Medicine (siehe Glossar), BIOSIS, hergestellt von BIOSciences Information Service, EMBASE, hergestellt von Elsevier Science B.V. sowie eine ganze Reihe von Datenbasen mit Spezialgebieten wie z.B. TOXLINE. Der wichtigste Anbieter medizinischer Datenbanken in Deutschland ist das Deutsche Institut für Medizinische Dokumentation und Information (DIMDI) in Köln, das 90 Datenbanken mit zusammen über 100 Millionen Dokumenten anbietet. Die Bedeutung der medizinischen Literatur zeigt sich auch am Science Citation Index (SCI). Im SCI sind 2345 medizinische Zeitschriften erfasst. Das sind 39% aller 6073 vom SCI erfassten naturwissenschaftlichen Zeitschriften. Nimmt man den Social-SCI mit 1798 Zeitschriften und den Art and Humanities-CI mit 1133 Zeitschriften noch hinzu, so haben die medizinischen Zeitschriften immer noch einen Anteil von 26%. Hinzu kommt, dass medizinische Zeitschriften meist mehr Hefte pro Jahr und dickere Hefte haben als die Zeitschriften anderer Fachgebiete.

Date

5. 4.2013 10:22:15

0.064405695 = product of:
  0.12881139 = sum of:
    0.12881139 = sum of:
      0.09043967 = weight(_text_:90 in 162) [ClassicSimilarity], result of:
        0.09043967 = score(doc=162,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.29699144 = fieldWeight in 162, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.0390625 = fieldNorm(doc=162)
      0.038371716 = weight(_text_:22 in 162) [ClassicSimilarity], result of:
        0.038371716 = score(doc=162,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.19345059 = fieldWeight in 162, 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=162)
  0.5 = coord(1/2)

Abstract

More and more libraries are providing access to Web resources through OCLC's (Online Computer Resource Center) Cooperative Online Resource Catalog (CORC) and, by extension, OCLC's WorldCat database. The ability to use a database to its maximum potential depends upon understanding what a database contains and the guidelines for its construction. This study examines the characteristics of Web resources in CORC in terms of their subject matter, the source of the content, publication patterns, and the units of information chosen for representation in the database. The majority of the 414 resources in the sample belonged to the social sciences. Academic libraries and government agencies contributed more than 90% of the records for resources in the sample. Using the Anglo-American Cataloguing Rules, 2d edition (AACR2) definitions for publication patterns that are part of the upcoming 2002 amendments reveals that nearly half of the sample fell into the category of integrating resources. Identifying units of representation of the resources described was more difficult. Existing definitions for Web units in development are not adequate to describe all of the resources in the sample. In addition, there is wide variability in the units of representation chosen for inclusion by the libraries contributing records, resulting in little predictability in what units of information might be found in the database.

Date

10. 9.2000 17:38:22

0.064405695 = product of:
  0.12881139 = sum of:
    0.12881139 = sum of:
      0.09043967 = weight(_text_:90 in 56) [ClassicSimilarity], result of:
        0.09043967 = score(doc=56,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.29699144 = fieldWeight in 56, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.0390625 = fieldNorm(doc=56)
      0.038371716 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
        0.038371716 = score(doc=56,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.19345059 = fieldWeight in 56, 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=56)
  0.5 = coord(1/2)

Abstract

The study reported here investigated the query expansion behavior of end-users interacting with a thesaurus-enhanced search system on the Web. Two groups, namely academic staff and postgraduate students, were recruited into this study. Data were collected from 90 searches performed by 30 users using the OVID interface to the CAB abstracts database. Data-gathering techniques included questionnaires, screen capturing software, and interviews. The results presented here relate to issues of search-topic and search-term characteristics, number and types of expanded queries, usefulness of thesaurus terms, and behavioral differences between academic staff and postgraduate students in their interaction. The key conclusions drawn were that (a) academic staff chose more narrow and synonymous terms than did postgraduate students, who generally selected broader and related terms; (b) topic complexity affected users' interaction with the thesaurus in that complex topics required more query expansion and search term selection; (c) users' prior topic-search experience appeared to have a significant effect on their selection and evaluation of thesaurus terms; (d) in 50% of the searches where additional terms were suggested from the thesaurus, users stated that they had not been aware of the terms at the beginning of the search; this observation was particularly noticeable in the case of postgraduate students.

Date

22. 7.2006 16:32:43

0.064405695 = product of:
  0.12881139 = sum of:
    0.12881139 = sum of:
      0.09043967 = weight(_text_:90 in 3611) [ClassicSimilarity], result of:
        0.09043967 = score(doc=3611,freq=2.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.29699144 = fieldWeight in 3611, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.0390625 = fieldNorm(doc=3611)
      0.038371716 = weight(_text_:22 in 3611) [ClassicSimilarity], result of:
        0.038371716 = score(doc=3611,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.19345059 = fieldWeight in 3611, 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=3611)
  0.5 = coord(1/2)

Content

Bezug zu: Svenonius, E.: Precoordination or not?. In: Subject indexing: principles and practices in the 90's. Proceedings of the IFLA Satellite Meeting Held in Lisbon, Portugal, 17-18 August 1993, and sponsored by the IFLA Section on Classification and Indexing and the Instituto da Biblioteca Nacional e do Livro, Lisbon, Portugal. Ed.: R.P. Holley et al. München: Saur 1995. S.231-255.

Date

20. 6.2010 14:22:43

0.06330776 = product of:
  0.12661552 = sum of:
    0.12661552 = product of:
      0.25323105 = sum of:
        0.25323105 = weight(_text_:90 in 3200) [ClassicSimilarity], result of:
          0.25323105 = score(doc=3200,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.831576 = fieldWeight in 3200, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.109375 = fieldNorm(doc=3200)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Pages

90 S

0.06330776 = product of:
  0.12661552 = sum of:
    0.12661552 = product of:
      0.25323105 = sum of:
        0.25323105 = weight(_text_:90 in 1073) [ClassicSimilarity], result of:
          0.25323105 = score(doc=1073,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.831576 = fieldWeight in 1073, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.109375 = fieldNorm(doc=1073)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Gehirn und Geist: Das Magazin für Hirnforschung und Psychologie. 2002, H.2, S.90-92

0.059976052 = product of:
  0.119952105 = sum of:
    0.119952105 = product of:
      0.3598563 = sum of:
        0.3598563 = weight(_text_:3a in 140) [ClassicSimilarity], result of:
          0.3598563 = score(doc=140,freq=2.0), product of:
            0.48021987 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.056642987 = queryNorm
            0.7493574 = fieldWeight in 140, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0625 = fieldNorm(doc=140)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Content

Vgl. auch: https://studylibde.com/doc/13053640/richard-schrodt. Vgl. auch: http%3A%2F%2Fwww.univie.ac.at%2FGermanistik%2Fschrodt%2Fvorlesung%2Fwissenschaftssprache.doc&usg=AOvVaw1lDLDR6NFf1W0-oC9mEUJf.

0.058195453 = product of:
  0.116390906 = sum of:
    0.116390906 = sum of:
      0.08953071 = weight(_text_:90 in 3043) [ClassicSimilarity], result of:
        0.08953071 = score(doc=3043,freq=4.0), product of:
          0.30451944 = queryWeight, product of:
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.056642987 = queryNorm
          0.29400653 = fieldWeight in 3043, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            5.376119 = idf(docFreq=555, maxDocs=44218)
            0.02734375 = fieldNorm(doc=3043)
      0.0268602 = weight(_text_:22 in 3043) [ClassicSimilarity], result of:
        0.0268602 = score(doc=3043,freq=2.0), product of:
          0.1983541 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.056642987 = queryNorm
          0.1354154 = fieldWeight in 3043, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.02734375 = fieldNorm(doc=3043)
  0.5 = coord(1/2)

Content

"Mit dem imponierenden Anblick in Leder gebundener Lexikonrücken können sie nicht mithatten. Sie bieten auch nicht das Vergnügen, das das Stöbern in den schweren Wälzern bereiten kann. Wenn es aber darum geht; gezielt nach Begriffen zu suchen und komplexe Zusammenhänge mit Texten, Tönen oder Filmen darzustellen, sind CD-Roms und DVDs klassischen Lexika überlegen. Seit kurzem auf dem Markt ist die neueste Ausgabe jenes Lexikons, dessen Name im deutschen Sprachraum synonym für die gesamte Gattung ist: der Brockhaus. Zu den wichtigsten Neuheiten des Brockhaus multimedial 2005 gehören nach Auskunft der Brockhaus Duden Neue Medien GmbH mit Sitz in Mannheim ein Länderpuzzle, Statistikfunktionen und Tipps zum Schreiben von Hausarbeiten in der Schule und im Studium. Beim Länderpuzzle kann der Nutzer sein Geographiewissen testen, indem er, zum Beispiel die Staaten eines Kontinents der Wirklichkeit entsprechend anordnet. Den Blick auf die Erde, den Mond und - zum ersten Mal - auch den Mars ermöglicht ein dreidimensionaler Atlas. Das Lexikon umfasst neben interaktiven Animationen und Videos insgesamt 240 000 Artikel und 315 000 Stichwörter. Hinzu kommen mehr als 19 500 Abbildungen und der Online-Zugriff auf zwei Millionen Bilder der Deutschen Presse-Agentur. Das Multimedialexikon für Windows wird in zwei Versionen angeboten: Der Brockhaus multimedial 2005 premium auf sechs CDs oder einer DVD kostet rund 90 Euro, die Standardversion rund 40 Euro. Eine neue Version des Fischer Weltalmanach (rund 20 Euro) hat United Soft Media (USM) mit Sitz in München in den Handel gebracht. Mit Hilfe einer neuen, interaktiven Weltkarte kann der Nutzer dabei aktualisierte Daten zur Weltpolitik abrufen. Die Datenbank enthält Informationen zu 194 Staaten der Welt sowie zu Organisationen, Personen und zu den Themen Wirtschaft, Umwelt und Kultur. Zur genauen Orientierung können Karten und Grafiken aufgerufen werden. Die Daten aus verschiedenen Ländern können miteinander verglichen und als Tabellen in der Weltkarte dargestellt werden. Ergänzt wird der Weltalmanach durch die Integration der kompletten Daten aus dem Fischer Länderlexikon, so dass zum Beispiel auch Informationen zur Geschichte, Geographie und zum Klima abgerufen werden können. Der Fischer Weltalmanach 2005 wird ausschließlich auf CD-Rom für das Betriebssystem Windows ausgeliefert.
Die Geschichte der Menschheit von den Anfängen bis in die achtziger Jahre des 20. Jahrhunderts hat Directmedia aus Berlin mit dem Standardwerk Fischer Weltgeschichte von 1982 erneut in den Handel gebracht. Der Inhalt füllt dieses Mal aber nicht die 25 000 Seiten der 36 Buchbände, sondern als Ausgabe 119 aus der Reihe Dfgitale Bibliothek lediglich eine CDRom. In digitaler Form soll die Fischer Weltgeschichte 45 Euro kosten. Historisch interessant ist auch der Inhalt von Pierers Universal-Lexikon und dem Lexikon der gesamten Technik: Beide Werke sind ebenfalls Teil der Digitalen Bibliothek von Directmedia. Pierers Universal-Lexikon, hierin der vierten Auflage von 1865, gilt als der Brockhaus des 19. Jahrhunderts und als ein Meilenstein der Lexikographie. Auf einer DVD präsentieren die 180 000 Seiten das Wissen der damaligen Zeit. Das Werk kostet 240 Euro, bis März 2005 ist es zum Subskriptionspreis für 180 Euro zu haben. Auf einer DVD legt das Lexikon der gesamten Technik Zeugnis ab von der Fortschrittsgläubigkeit zu Anfang des 20. Jahrhunderts. Der Inhalt zeigt die 30 000 Seiten der zweiten Auflage aus dem Jahr 1904. Das historische Techniklexikon ist für 90 Euro zu haben. Auf der Höhe der Zeit ist hingegen Das neue Filmlexikon von USM. Wer zum Beispiel wissen will, in welchen Filmen Brad Pitt vor der Kamera stand oder wer für Steven Spielberg einst dem Weißen Plastikhai Leben einhauchte, kann hier fündig werden. 75 000 Filmbeschreibungen, 30 000 Kritiken sowie Poster, Szenenbilder und Trailer machen das auf DVD und CD-Rom erhältliche Filmlexikon zu einer Fundgrube für Cineasten. Die DVD-Version kostet 49,90 Euro, die CD-Rom mit reduziertem Inhalt 24,90 Euro."

Date

3. 5.1997 8:44:22

0.054263797 = product of:
  0.10852759 = sum of:
    0.10852759 = product of:
      0.21705519 = sum of:
        0.21705519 = weight(_text_:90 in 4908) [ClassicSimilarity], result of:
          0.21705519 = score(doc=4908,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.7127794 = fieldWeight in 4908, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.09375 = fieldNorm(doc=4908)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 53(2000) H.2, S.74-90

0.054263797 = product of:
  0.10852759 = sum of:
    0.10852759 = product of:
      0.21705519 = sum of:
        0.21705519 = weight(_text_:90 in 1449) [ClassicSimilarity], result of:
          0.21705519 = score(doc=1449,freq=2.0), product of:
            0.30451944 = queryWeight, product of:
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.056642987 = queryNorm
            0.7127794 = fieldWeight in 1449, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.376119 = idf(docFreq=555, maxDocs=44218)
              0.09375 = fieldNorm(doc=1449)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Pages

S.80-90