-
Sukiasyan, E.: ¬The new state standard of the USSR : Sytematization of documents. General requirements (1987)
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- Footnote
- Vortrag, 52nd IFLA general conference, Tokio. - 161-CLASS-4-E
- Source
- International cataloguing. 16(1987), S.22-23
-
Walker, J.: SilverPlatter Information : Integration of information resources (2000)
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- Date
- 22. 7.2000 17:39:40
- Series
- BIBLOS-Schriften; 161
-
Lorenz, B.: ¬The Regensburg Classification Scheme : users and partners (1995)
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- Source
- Knowledge organization. 22(1995) nos.3/4, S.158-161
-
Gill, H.S.; Yates-Mercer, P.: ¬The dissemination of information by local authorities on the World Wide Web (1998)
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- Abstract
- Reports results of an e-mail questionnaire survey of 161 UK local authorities to determine their use of the WWW for the dissemination of information. Identifies the resons for its adoption, the benefits and disadvantages and the types of information being disseminated by this means. All the Web sites were observed and assessed for relevance and quality and 4 local authorities were used as case studies
- Date
- 10. 1.1999 17:22:49
-
Project ELVYN : an experiment in electronic jornal delivery, facts, figures and findings (1995)
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- Date
- 1. 3.1997 18:22:00
- Isbn
- 1-85739-161-6
-
Randall, N.B.: Spelling errors in the database : shadow or substance? (1999)
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- Date
- 10. 9.2000 17:38:22
- Source
- Library resources and technical services. 43(1999) no.3, S.161-169
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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- 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
-
Bates, M.J.: Factors affecting subject catalog search success (1977)
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- Source
- Journal of the American Society for Information Science. 28(1977), S.161-169
-
Swope, M.J.; Katzer, J.: Why don't they ask questions? (1972)
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- Source
- RQ. 12(1972), S.161-166
-
Deese, J.E.: On the structure of associative meaning (1962)
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- Source
- Psychology review. 69(1962), S.161-175
-
Bobrow, D.G.; Fraser, J.B.; Quillian, M.R.: Automated language processing (1967)
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- Source
- Annual review of information science and technology. 2(1967), S.161-186
-
Appelt, D.E.: Introduction to information extraction (1999)
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- Source
- AI communications. 12(1999) no.3, S.161-172
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Alonso Lifante, M.P.; Molero Madrid, F.J.: Enhancing OPAC records : evaluating and fitting within cataloguing standards a new proposal of description parameters for historical astronomical resources (2015)
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- Date
- 10. 9.2000 17:38:22
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- Library resources and technical services. 59(2015) no.4, S.140-161
-
Kaushik, S.K.: DDC 22 : a practical approach (2004)
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- 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
- Signature
- 63 BCEK 161
-
Miksa, F.L.: ¬The subject in the dictionary catalog from Cutter to the present (1983)
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- Footnote
- Rez. in: International classification 15(1988) S.161-164 (J.M. Perreault)
-
Gardin, J.C.: Free classifications and faceted classifications : their exploitation with computers (1965)
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- Pages
- S.161-176
-
Wiener, P.B.: Mad bombers and ethical librarians : a dialogue with Robert Hauptman and John Swan (1987)
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- Source
- Catholic library world. 58(1987), S.161-163
-
Swanson, D.R.: Dialogues with a catalog (1964)
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- Footnote
- Vgl. auch: Su, S.-F.: Dialog with an OPAC. In: Library quarterly 64(1994) S.130-161
-
Bose, A.: Information resources management : a glossary of terms (1986)
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Ritchie, I.: New media publishing (1996)
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