-
Liu, S.; Svenonius, E.: DORS: DDC online retrieval system (1991)
0.01
0.008808877 = product of:
0.061662138 = sum of:
0.008071727 = weight(_text_:information in 1155) [ClassicSimilarity], result of:
0.008071727 = score(doc=1155,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 1155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=1155)
0.05359041 = weight(_text_:retrieval in 1155) [ClassicSimilarity], result of:
0.05359041 = score(doc=1155,freq=10.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.59785134 = fieldWeight in 1155, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=1155)
0.14285715 = coord(2/14)
- Abstract
- A model system, the Dewey Online Retrieval System (DORS), was implemented as an interface to an online catalog for the purpose of experimenting with classification-based search strategies and generally seeking further understanding of the role of traditional classifications in automated information retrieval. Specifications for a classification retrieval interface were enumerated and rationalized and the system was developed in accordance with them. The feature that particularly distinguishes the system and enables it to meet its stated specifications is an automatically generated chain index
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.: ¬The impact of computer technology on knowledge representations (1992)
0.01
0.0072068013 = product of:
0.050447606 = sum of:
0.014125523 = weight(_text_:information in 2379) [ClassicSimilarity], result of:
0.014125523 = score(doc=2379,freq=8.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.27153665 = fieldWeight in 2379, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=2379)
0.036322083 = weight(_text_:retrieval in 2379) [ClassicSimilarity], result of:
0.036322083 = score(doc=2379,freq=6.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.40520695 = fieldWeight in 2379, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=2379)
0.14285715 = coord(2/14)
- Abstract
- The advent of the computer has brought epistemological questions, heretofore the province of classificationists and philosophers, into the limelight of popular thought. No longer of only theoretical interest, such questions stand in need of operational answers, at least if computers are to process information intelligently. Answers to these questions are embodied in what today are known as knowledge representations. Knowledge representations are used for a variety of related purposes, including language and text understanding, cognitive research, expert system development and information retrieval. This paper focuses on the use of three computer-based knowledge representations of potential relevance for information retrieval: hypertext systems, cluster analysis and knowledge representations accomodating rule-based reasoning. It then considers research that might be pursued to inform the development of knowledge representations for information retrieval
-
Molto, M.; Svenonius, E.: ¬An electronic interface to AACR2 (1998)
0.00
0.0036609212 = product of:
0.051252894 = sum of:
0.051252894 = weight(_text_:elektronische in 2838) [ClassicSimilarity], result of:
0.051252894 = score(doc=2838,freq=2.0), product of:
0.14013545 = queryWeight, product of:
4.728978 = idf(docFreq=1061, maxDocs=44218)
0.029633347 = queryNorm
0.36573824 = fieldWeight in 2838, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.728978 = idf(docFreq=1061, maxDocs=44218)
0.0546875 = fieldNorm(doc=2838)
0.071428575 = coord(1/14)
- Form
- Elektronische Dokumente
-
Svenonius, E.: Unanswered questions in the design of controlled vocabularies (1997)
0.00
0.0034326524 = product of:
0.024028566 = sum of:
0.0060537956 = weight(_text_:information in 583) [ClassicSimilarity], result of:
0.0060537956 = score(doc=583,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.116372846 = fieldWeight in 583, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.046875 = fieldNorm(doc=583)
0.01797477 = weight(_text_:retrieval in 583) [ClassicSimilarity], result of:
0.01797477 = score(doc=583,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.20052543 = fieldWeight in 583, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=583)
0.14285715 = coord(2/14)
- Abstract
- The issue of free-text versus controlled vocabulary is examined in this article. The history of the issue, which is seen as beginning with the debate over title term indexing in the last century, is reviewed and the attention is turned to questions which have not been satisfactorily addressed by previous research. The point is made that these questions need to be answered if we are to design retrieval tools, such as thesauri, upon a national basis
- Imprint
- The Hague : International Federation for Information and Documentation (FID)
-
Svenonius, E.; Liu, S.; Subrahmanyam, B.: Automation of chain indexing (1992)
0.00
0.001815726 = product of:
0.025420163 = sum of:
0.025420163 = weight(_text_:retrieval in 2114) [ClassicSimilarity], result of:
0.025420163 = score(doc=2114,freq=4.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.2835858 = fieldWeight in 2114, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=2114)
0.071428575 = coord(1/14)
- Abstract
- The last several years have seen the evolution of prototype systems exploiting the use of the Dewey Decimal Classification (DDC) as an interface to online catalogs. One such system, calles DORS (Dewy Online Retrieval System) was developed at the University of California, Los Angeles by the authors. The feature distinguishing this system is an automatically generated chain index, in particular the algorithms that were created for its automatic generation and the problems that were encountered. The problems were of three kinds: those that were overcome, but were not for lack of time and resources and those that we believe cannot be overcome. The paper concludes with suggestions for future resaerch and possible formatting changes to the DDC feature headings that would facilitate chain-index generation
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Svenonius, E.: Precoordination or not? (1995)
0.00
0.0017118829 = product of:
0.023966359 = sum of:
0.023966359 = weight(_text_:retrieval in 3606) [ClassicSimilarity], result of:
0.023966359 = score(doc=3606,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.26736724 = fieldWeight in 3606, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=3606)
0.071428575 = coord(1/14)
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: Präkoordination - ja oder nein? (1994)
0.00
0.0012839122 = product of:
0.01797477 = sum of:
0.01797477 = weight(_text_:retrieval in 1643) [ClassicSimilarity], result of:
0.01797477 = score(doc=1643,freq=2.0), product of:
0.08963835 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.029633347 = queryNorm
0.20052543 = fieldWeight in 1643, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=1643)
0.071428575 = coord(1/14)
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Svenonius, E.: Design of controlled vocabularies (1990)
0.00
0.001008966 = product of:
0.014125523 = sum of:
0.014125523 = weight(_text_:information in 1271) [ClassicSimilarity], result of:
0.014125523 = score(doc=1271,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.27153665 = fieldWeight in 1271, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.109375 = fieldNorm(doc=1271)
0.071428575 = coord(1/14)
- Source
- Encyclopedia of library and information science. Vol.45, [=Suppl.10]
-
Svenonius, E.: Access to nonbook materials : the limits of subject indexing for visual and aural languages (1994)
0.00
5.7655195E-4 = product of:
0.008071727 = sum of:
0.008071727 = weight(_text_:information in 8263) [ClassicSimilarity], result of:
0.008071727 = score(doc=8263,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 8263, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=8263)
0.071428575 = coord(1/14)
- Source
- Journal of the American Society for Information Science. 45(1994) no.8, S.600-606
-
Svenonius, E.; Molto, M.: Automatic derivation of name access points in cataloging (1990)
0.00
5.7655195E-4 = product of:
0.008071727 = sum of:
0.008071727 = weight(_text_:information in 3569) [ClassicSimilarity], result of:
0.008071727 = score(doc=3569,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.1551638 = fieldWeight in 3569, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=3569)
0.071428575 = coord(1/14)
- Source
- Journal of the American Society for Information Science. 41(1990) no.4, S.254-263
-
McGarry, D.; Svenonius, E.: More on improved browsable displays for online subject access (1991)
0.00
5.04483E-4 = product of:
0.0070627616 = sum of:
0.0070627616 = weight(_text_:information in 1066) [ClassicSimilarity], result of:
0.0070627616 = score(doc=1066,freq=2.0), product of:
0.052020688 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.029633347 = queryNorm
0.13576832 = fieldWeight in 1066, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=1066)
0.071428575 = coord(1/14)
- Source
- Information technology and libraries. 10(1991), S.185-191
