-
Wimmer, W.: Mit dem 'Surfbrett' in die Bibliothek : der World-Wide-Web Katalog der Bibliothek der Friedrich-Ebert-Stiftung (1996)
0.09
0.09248682 = product of:
0.18497364 = sum of:
0.18497364 = sum of:
0.100288466 = weight(_text_:w in 3373) [ClassicSimilarity], result of:
0.100288466 = score(doc=3373,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.5052462 = fieldWeight in 3373, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.09375 = fieldNorm(doc=3373)
0.08468518 = weight(_text_:22 in 3373) [ClassicSimilarity], result of:
0.08468518 = score(doc=3373,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.46428138 = fieldWeight in 3373, 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=3373)
0.5 = coord(1/2)
- Date
- 22. 4.1996 20:07:57
-
Wimmer, W.: Multimedia-Angebote im Bibliothekskatalog : Neue Möglichkeiten durch das ALLEGRO-Programm ALCARTA (1999)
0.09
0.09168808 = product of:
0.18337616 = sum of:
0.18337616 = sum of:
0.08357372 = weight(_text_:w in 4368) [ClassicSimilarity], result of:
0.08357372 = score(doc=4368,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.42103854 = fieldWeight in 4368, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.078125 = fieldNorm(doc=4368)
0.099802434 = weight(_text_:22 in 4368) [ClassicSimilarity], result of:
0.099802434 = score(doc=4368,freq=4.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.54716086 = fieldWeight in 4368, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=4368)
0.5 = coord(1/2)
- Date
- 22. 1.2000 19:36:10
22. 1.2000 19:41:58
-
Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004)
0.06
0.06441586 = sum of:
0.010465209 = product of:
0.041860837 = sum of:
0.041860837 = weight(_text_:authors in 2509) [ClassicSimilarity], result of:
0.041860837 = score(doc=2509,freq=2.0), product of:
0.2374559 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05208721 = queryNorm
0.17628889 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.25 = coord(1/4)
0.053950645 = sum of:
0.029250802 = weight(_text_:w in 2509) [ClassicSimilarity], result of:
0.029250802 = score(doc=2509,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.14736348 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.024699843 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
0.024699843 = score(doc=2509,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.1354154 = fieldWeight in 2509, 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=2509)
- Abstract
- A relevancy-ranking algorithm for a natural language interface to Boolean online public access catalogs (OPACs) was formulated and compared with that currently used in a knowledge-based search interface called the E-Referencer, being developed by the authors. The algorithm makes use of seven weIl-known ranking criteria: breadth of match, section weighting, proximity of query words, variant word forms (stemming), document frequency, term frequency and document length. The algorithm converts a natural language query into a series of increasingly broader Boolean search statements. In a small experiment with ten subjects in which the algorithm was simulated by hand, the algorithm obtained good results with a mean overall precision of 0.42 and mean average precision of 0.62, representing a 27 percent improvement in precision and 41 percent improvement in average precision compared to the E-Referencer. The usefulness of each step in the algorithm was analyzed and suggestions are made for improving the algorithm.
- Source
- Electronic library. 22(2004) no.2, S.112-120
-
Horn, M.E.: "Garbage" in, "refuse and refuse disposal" out : making the most of the subject authority file in the OPAC (2002)
0.05
0.04563026 = sum of:
0.020930419 = product of:
0.083721675 = sum of:
0.083721675 = weight(_text_:authors in 156) [ClassicSimilarity], result of:
0.083721675 = score(doc=156,freq=2.0), product of:
0.2374559 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05208721 = queryNorm
0.35257778 = fieldWeight in 156, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.0546875 = fieldNorm(doc=156)
0.25 = coord(1/4)
0.024699843 = product of:
0.049399685 = sum of:
0.049399685 = weight(_text_:22 in 156) [ClassicSimilarity], result of:
0.049399685 = score(doc=156,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.2708308 = fieldWeight in 156, 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=156)
0.5 = coord(1/2)
- Abstract
- Subject access in the OPAC, as discussed in this article, is predicated on two different kinds of searching: subject (authority, alphabetic, or controlled vocabulary searching) or keyword (uncontrolled, free text, natural language vocabulary). The literature has focused on demonstrating that both approaches are needed, but very few authors address the need to integrate keyword into authority searching. The article discusses this difference and compares, with a query on the term garbage, search results in two online catalogs, one that performs keyword searches through the authority file and one where only bibliographic records are included in keyword searches.
- Date
- 10. 9.2000 17:38:22
-
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)
0.04
0.03911165 = sum of:
0.01794036 = product of:
0.07176144 = sum of:
0.07176144 = weight(_text_:authors in 2611) [ClassicSimilarity], result of:
0.07176144 = score(doc=2611,freq=2.0), product of:
0.2374559 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05208721 = queryNorm
0.30220953 = fieldWeight in 2611, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.046875 = fieldNorm(doc=2611)
0.25 = coord(1/4)
0.021171294 = product of:
0.04234259 = sum of:
0.04234259 = weight(_text_:22 in 2611) [ClassicSimilarity], result of:
0.04234259 = score(doc=2611,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.23214069 = fieldWeight in 2611, 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=2611)
0.5 = coord(1/2)
- Abstract
- Enhancing content description of specialized resources, particularly astronomical resources, is a matter that is still unresolved in library and information science. In this paper, the authors outline deficiencies in some fields and elements of cataloging standards for description of historical astronomical resources, mainly star atlases and catalogs. Furthermore, they review their recent proposal of astronomical parameters for a better description and propose an approach for accommodating these parameters in the current criteria of MARC 21, the International Standard Bibliographic Description, and Resource Description and Access. Fourteen new parameters are considered, and recommendations are provided to standards developers for the addition of elements to accommodate attributes of celestial cartographic resources. This would improve bibliographic records for such resources in astronomical libraries' OPACs, which will have a beneficial effect on information retrieval.
- Date
- 10. 9.2000 17:38:22
-
Kristen, H.; Sievers, W.: ¬Die Benutzeroberfläche des OPAC an der Universitätsbibliothek Karlsruhe (1988)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 525) [ClassicSimilarity], result of:
0.13371795 = score(doc=525,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 525, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=525)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kowalk, W.: ¬Der OPAC der Universitätsbibliothek Saarbrücken (1989)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 569) [ClassicSimilarity], result of:
0.13371795 = score(doc=569,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 569, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=569)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Foster, W.: OPAC design : a library school perspective (1988)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 890) [ClassicSimilarity], result of:
0.13371795 = score(doc=890,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 890, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=890)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Foster, W.; Wellings, R.: Development of BLCMP's online public access catalogue (1989)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 4076) [ClassicSimilarity], result of:
0.13371795 = score(doc=4076,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 4076, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=4076)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Uricchio, W.: From card catalog to OPAC : using CD-ROM to cross the great divide (1993)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 4081) [ClassicSimilarity], result of:
0.13371795 = score(doc=4081,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 4081, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=4081)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Niggemeyer, E.; Horstmann, K.-W.: From HELL to HEAVEN oder der Himmel ist nicht lokal (1994)
0.03
0.03342949 = product of:
0.06685898 = sum of:
0.06685898 = product of:
0.13371795 = sum of:
0.13371795 = weight(_text_:w in 8364) [ClassicSimilarity], result of:
0.13371795 = score(doc=8364,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.67366165 = fieldWeight in 8364, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.125 = fieldNorm(doc=8364)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Ikas, W.-V.; Litten, F.: World Wide Web und Catalogue Enrichment : Möglichkeiten des verbesserten Nachweises von mikroverfilmten Handschriften und Inkunabeln (2007)
0.03
0.030828942 = product of:
0.061657883 = sum of:
0.061657883 = sum of:
0.03342949 = weight(_text_:w in 323) [ClassicSimilarity], result of:
0.03342949 = score(doc=323,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.16841541 = fieldWeight in 323, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.03125 = fieldNorm(doc=323)
0.028228393 = weight(_text_:22 in 323) [ClassicSimilarity], result of:
0.028228393 = score(doc=323,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.15476047 = fieldWeight in 323, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=323)
0.5 = coord(1/2)
- Date
- 22. 5.2007 11:19:21
-
Binder, W.; Kemminer, J.; Summann, F.: CD-ROM und Online-Publikumskataloge für Bibliotheken : Ein Projekt der Universitätsbibliothek Bielefeld (1988)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 264) [ClassicSimilarity], result of:
0.11700321 = score(doc=264,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=264)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kowalk, W.: ¬Der OPAC der Universitätsbibliothek Saarbrücken (1991)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 766) [ClassicSimilarity], result of:
0.11700321 = score(doc=766,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 766, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=766)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Crawford, W.: Testing bibliographic displays for online catalogs (1987)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 3865) [ClassicSimilarity], result of:
0.11700321 = score(doc=3865,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 3865, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=3865)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Umstätter, W.: ¬Die Kunst der Frage (1993)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 5070) [ClassicSimilarity], result of:
0.11700321 = score(doc=5070,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 5070, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=5070)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Online Publikumskatalog auf CD-ROM der Universitätsbibliothek Bielefeld : Benutzer-Dokumentation (1991)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 8945) [ClassicSimilarity], result of:
0.11700321 = score(doc=8945,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 8945, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=8945)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Editor
- Binder, W. (Bearb.)
-
Crawford, W.: Starting over : current issues in online catalog user interface design; ALA spotlight article (1992)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 273) [ClassicSimilarity], result of:
0.11700321 = score(doc=273,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 273, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=273)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Binder, W.: ¬Der Publikumskatalog der Universitätsbibliothek Bielefeld : Das erste deutsche Bibliotheksprojekt auf CD-ROM (1988)
0.03
0.029250802 = product of:
0.058501605 = sum of:
0.058501605 = product of:
0.11700321 = sum of:
0.11700321 = weight(_text_:w in 1921) [ClassicSimilarity], result of:
0.11700321 = score(doc=1921,freq=2.0), product of:
0.19849424 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.05208721 = queryNorm
0.58945394 = fieldWeight in 1921, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.109375 = fieldNorm(doc=1921)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
0.03
0.028228393 = product of:
0.056456786 = sum of:
0.056456786 = product of:
0.11291357 = sum of:
0.11291357 = weight(_text_:22 in 7403) [ClassicSimilarity], result of:
0.11291357 = score(doc=7403,freq=2.0), product of:
0.18240054 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05208721 = queryNorm
0.61904186 = fieldWeight in 7403, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=7403)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Program. 22(1988), S.21-31
