-
Gilchrist, A.: ¬The thesaurus in retrieval (1971)
0.26
0.2553918 = product of:
0.54726815 = sum of:
0.14738896 = weight(_text_:allgemeines in 4593) [ClassicSimilarity], result of:
0.14738896 = score(doc=4593,freq=4.0), product of:
0.16533206 = queryWeight, product of:
5.705423 = idf(docFreq=399, maxDocs=44218)
0.028978055 = queryNorm
0.89147234 = fieldWeight in 4593, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.705423 = idf(docFreq=399, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.097876295 = weight(_text_:buch in 4593) [ClassicSimilarity], result of:
0.097876295 = score(doc=4593,freq=4.0), product of:
0.13472971 = queryWeight, product of:
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.028978055 = queryNorm
0.7264641 = fieldWeight in 4593, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.027240701 = weight(_text_:und in 4593) [ClassicSimilarity], result of:
0.027240701 = score(doc=4593,freq=6.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.42413816 = fieldWeight in 4593, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.044985805 = product of:
0.08997161 = sum of:
0.08997161 = weight(_text_:bibliothekswesen in 4593) [ClassicSimilarity], result of:
0.08997161 = score(doc=4593,freq=4.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.69651127 = fieldWeight in 4593, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.5 = coord(1/2)
0.12993823 = weight(_text_:informationswissenschaft in 4593) [ClassicSimilarity], result of:
0.12993823 = score(doc=4593,freq=8.0), product of:
0.13053758 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.028978055 = queryNorm
0.99540854 = fieldWeight in 4593, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.08997161 = weight(_text_:bibliothekswesen in 4593) [ClassicSimilarity], result of:
0.08997161 = score(doc=4593,freq=4.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.69651127 = fieldWeight in 4593, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.009866543 = product of:
0.019733086 = sum of:
0.019733086 = weight(_text_:information in 4593) [ClassicSimilarity], result of:
0.019733086 = score(doc=4593,freq=8.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.38790947 = fieldWeight in 4593, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.078125 = fieldNorm(doc=4593)
0.5 = coord(1/2)
0.46666667 = coord(7/15)
- Classification
- AN 94200 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Thesauruskunde
- LCSH
- Information retrieval
- RSWK
- Schlagwortnormdatei / Information Retrieval
- RVK
- AN 94200 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Thesauruskunde
- Subject
- Schlagwortnormdatei / Information Retrieval
Information retrieval
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Principles underlying subject heading languages (SHLs) (1999)
0.13
0.13205904 = product of:
0.3301476 = sum of:
0.08843337 = weight(_text_:allgemeines in 1659) [ClassicSimilarity], result of:
0.08843337 = score(doc=1659,freq=4.0), product of:
0.16533206 = queryWeight, product of:
5.705423 = idf(docFreq=399, maxDocs=44218)
0.028978055 = queryNorm
0.5348834 = fieldWeight in 1659, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.705423 = idf(docFreq=399, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.058725778 = weight(_text_:buch in 1659) [ClassicSimilarity], result of:
0.058725778 = score(doc=1659,freq=4.0), product of:
0.13472971 = queryWeight, product of:
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.028978055 = queryNorm
0.43587846 = fieldWeight in 1659, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.013345163 = weight(_text_:und in 1659) [ClassicSimilarity], result of:
0.013345163 = score(doc=1659,freq=4.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.20778441 = fieldWeight in 1659, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.03817172 = product of:
0.07634344 = sum of:
0.07634344 = weight(_text_:bibliothekswesen in 1659) [ClassicSimilarity], result of:
0.07634344 = score(doc=1659,freq=8.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.5910094 = fieldWeight in 1659, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.5 = coord(1/2)
0.05512812 = weight(_text_:informationswissenschaft in 1659) [ClassicSimilarity], result of:
0.05512812 = score(doc=1659,freq=4.0), product of:
0.13053758 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.028978055 = queryNorm
0.42231607 = fieldWeight in 1659, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.07634344 = weight(_text_:bibliothekswesen in 1659) [ClassicSimilarity], result of:
0.07634344 = score(doc=1659,freq=8.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.5910094 = fieldWeight in 1659, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.046875 = fieldNorm(doc=1659)
0.4 = coord(6/15)
- Classification
- AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
- RVK
- AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
-
Blair, D.C.: Language and representation in information retrieval (1991)
0.11
0.110293455 = product of:
0.23634312 = sum of:
0.058955584 = weight(_text_:allgemeines in 1545) [ClassicSimilarity], result of:
0.058955584 = score(doc=1545,freq=4.0), product of:
0.16533206 = queryWeight, product of:
5.705423 = idf(docFreq=399, maxDocs=44218)
0.028978055 = queryNorm
0.35658893 = fieldWeight in 1545, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.705423 = idf(docFreq=399, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.03915052 = weight(_text_:buch in 1545) [ClassicSimilarity], result of:
0.03915052 = score(doc=1545,freq=4.0), product of:
0.13472971 = queryWeight, product of:
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.028978055 = queryNorm
0.29058564 = fieldWeight in 1545, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.64937 = idf(docFreq=1149, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.025163881 = weight(_text_:und in 1545) [ClassicSimilarity], result of:
0.025163881 = score(doc=1545,freq=32.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.39180204 = fieldWeight in 1545, product of:
5.656854 = tf(freq=32.0), with freq of:
32.0 = termFreq=32.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.017994322 = product of:
0.035988644 = sum of:
0.035988644 = weight(_text_:bibliothekswesen in 1545) [ClassicSimilarity], result of:
0.035988644 = score(doc=1545,freq=4.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.2786045 = fieldWeight in 1545, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.5 = coord(1/2)
0.05197529 = weight(_text_:informationswissenschaft in 1545) [ClassicSimilarity], result of:
0.05197529 = score(doc=1545,freq=8.0), product of:
0.13053758 = queryWeight, product of:
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.028978055 = queryNorm
0.3981634 = fieldWeight in 1545, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.504705 = idf(docFreq=1328, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.035988644 = weight(_text_:bibliothekswesen in 1545) [ClassicSimilarity], result of:
0.035988644 = score(doc=1545,freq=4.0), product of:
0.12917466 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.028978055 = queryNorm
0.2786045 = fieldWeight in 1545, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.007114865 = product of:
0.01422973 = sum of:
0.01422973 = weight(_text_:information in 1545) [ClassicSimilarity], result of:
0.01422973 = score(doc=1545,freq=26.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.2797255 = fieldWeight in 1545, product of:
5.0990195 = tf(freq=26.0), with freq of:
26.0 = termFreq=26.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.03125 = fieldNorm(doc=1545)
0.5 = coord(1/2)
0.46666667 = coord(7/15)
- Abstract
- Information or Document Retrieval is the subject of this book. It is not an introductory book, although it is self-contained in the sense that it is not necessary to have a background in the theory or practice of Information Retrieval in order to understand its arguments. The book presents, as clearly as possible, one particular perspective on Information Retrieval, and attempts to say that certain aspects of the theory or practice of the management of documents are more important than others. The majority of Information Retrieval research has been aimed at the more experimentally tractable small-scale systems, and although much of that work has added greatly to our understanding of Information Retrieval it is becoming increasingly apparent that retrieval systems with large data bases of documents are a fundamentally different genre of systems than small-scale systems. If this is so, which is the thesis of this book, then we must now study large information retrieval systems with the same rigor and intensity that we once studied small-scale systems. Hegel observed that the quantitative growth of any system caused qualitative changes to take place in its structure and processes.
- Classification
- ES 930 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Informationsbehandlung
ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
ST 270 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme
- COMPASS
- Information retrieval
- LCSH
- Information Retrieval
- RSWK
- Information Retrieval
- RVK
- ES 930 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Informationsbehandlung
ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
ST 270 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme
- Subject
- Information retrieval
Information Retrieval
Information Retrieval
-
Milstead, J.L.: Thesauri in a full-text world (1998)
0.00
0.0049814526 = product of:
0.03736089 = sum of:
0.007863713 = weight(_text_:und in 2337) [ClassicSimilarity], result of:
0.007863713 = score(doc=2337,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.12243814 = fieldWeight in 2337, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0390625 = fieldNorm(doc=2337)
0.029497176 = sum of:
0.009866543 = weight(_text_:information in 2337) [ClassicSimilarity], result of:
0.009866543 = score(doc=2337,freq=8.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.19395474 = fieldWeight in 2337, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=2337)
0.019630633 = weight(_text_:22 in 2337) [ClassicSimilarity], result of:
0.019630633 = score(doc=2337,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.19345059 = fieldWeight in 2337, 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=2337)
0.13333334 = coord(2/15)
- Abstract
- Despite early claims to the contemporary, thesauri continue to find use as access tools for information in the full-text environment. Their mode of use is changing, but this change actually represents an expansion rather than a contrdiction of their utility. Thesauri and similar vocabulary tools can complement full-text access by aiding users in focusing their searches, by supplementing the linguistic analysis of the text search engine, and even by serving as one of the tools used by the linguistic engine for its analysis. While human indexing contunues to be used for many databases, the trend is to increase the use of machine aids for this purpose. All machine-aided indexing (MAI) systems rely on thesauri as the basis for term selection. In the 21st century, the balance of effort between human and machine will change at both input and output, but thesauri will continue to play an important role for the foreseeable future
- Date
- 22. 9.1997 19:16:05
- Imprint
- Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
- Source
- Visualizing subject access for 21st century information resources: Papers presented at the 1997 Clinic on Library Applications of Data Processing, 2-4 Mar 1997, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign. Ed.: P.A. Cochrane et al
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995)
0.00
0.0037715265 = product of:
0.028286448 = sum of:
0.012581941 = weight(_text_:und in 3734) [ClassicSimilarity], result of:
0.012581941 = score(doc=3734,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.19590102 = fieldWeight in 3734, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0625 = fieldNorm(doc=3734)
0.015704507 = product of:
0.031409014 = sum of:
0.031409014 = weight(_text_:22 in 3734) [ClassicSimilarity], result of:
0.031409014 = score(doc=3734,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.30952093 = fieldWeight in 3734, 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=3734)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Source
- Searcher. 3(1995) no.8, S.18-22
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-enhanced search interfaces (2002)
0.00
0.0033057118 = product of:
0.024792837 = sum of:
0.018872911 = weight(_text_:und in 3807) [ClassicSimilarity], result of:
0.018872911 = score(doc=3807,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.29385152 = fieldWeight in 3807, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.09375 = fieldNorm(doc=3807)
0.005919926 = product of:
0.011839852 = sum of:
0.011839852 = weight(_text_:information in 3807) [ClassicSimilarity], result of:
0.011839852 = score(doc=3807,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.23274569 = fieldWeight in 3807, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.09375 = fieldNorm(doc=3807)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Source
- Journal of information science. 28(2002) no.2, S.111-122
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000)
0.00
0.0019651123 = product of:
0.029476684 = sum of:
0.029476684 = sum of:
0.005919926 = weight(_text_:information in 5920) [ClassicSimilarity], result of:
0.005919926 = score(doc=5920,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.116372846 = fieldWeight in 5920, 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=5920)
0.023556758 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
0.023556758 = score(doc=5920,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.23214069 = fieldWeight in 5920, 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=5920)
0.06666667 = coord(1/15)
- Abstract
- Library of Congress Subject Headings (LCSH), a system originally designed as a tool for subject access to the Library's own collection in the late nineteenth century, has become, in the course of the last century, the main subject retrieval tool in library catalogs throughout the United States and in many other countries. It is one of the largest non-specialized controlled vocabularies in the world. As LCSH enters a new century, it faces an information environment that has undergone vast changes from what had prevailed when LCSH began, or, indeed, from its state in the early days of the online age. In order to continue its mission and to be useful in spheres outside library catalogs as well, LCSH must adapt to the multifarious environment. One possible approach is to adopt a series of scalable and flexible syntax and application rules to meet the needs of different user communities
- Date
- 27. 5.2001 16:22:21
-
Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009)
0.00
0.0019651123 = product of:
0.029476684 = sum of:
0.029476684 = sum of:
0.005919926 = weight(_text_:information in 3837) [ClassicSimilarity], result of:
0.005919926 = score(doc=3837,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.116372846 = fieldWeight in 3837, 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=3837)
0.023556758 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
0.023556758 = score(doc=3837,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.23214069 = fieldWeight in 3837, 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=3837)
0.06666667 = coord(1/15)
- Date
- 27. 8.2011 14:22:13
- Source
- Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
-
Mu, X.; Lu, K.; Ryu, H.: Explicitly integrating MeSH thesaurus help into health information retrieval systems : an empirical user study (2014)
0.00
0.0017839039 = product of:
0.013379279 = sum of:
0.007863713 = weight(_text_:und in 2703) [ClassicSimilarity], result of:
0.007863713 = score(doc=2703,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.12243814 = fieldWeight in 2703, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0390625 = fieldNorm(doc=2703)
0.005515565 = product of:
0.01103113 = sum of:
0.01103113 = weight(_text_:information in 2703) [ClassicSimilarity], result of:
0.01103113 = score(doc=2703,freq=10.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.21684799 = fieldWeight in 2703, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=2703)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Abstract
- When consumers search for health information, a major obstacle is their unfamiliarity with the medical terminology. Even though medical thesauri such as the Medical Subject Headings (MeSH) and related tools (e.g., the MeSH Browser) were created to help consumers find medical term definitions, the lack of direct and explicit integration of these help tools into a health retrieval system prevented them from effectively achieving their objectives. To explore this issue, we conducted an empirical study with two systems: One is a simple interface system supporting query-based searching; the other is an augmented system with two new components supporting MeSH term searching and MeSH tree browsing. A total of 45 subjects were recruited to participate in the study. The results indicated that the augmented system is more effective than the simple system in terms of improving user-perceived topic familiarity and question-answer performance, even though we did not find users spend more time on the augmented system. The two new MeSH help components played a critical role in participants' health information retrieval and were found to allow them to develop new search strategies. The findings of the study enhanced our understanding of consumers' search behaviors and shed light on the design of future health information retrieval systems.
- Source
- Information processing and management. 50(2014) no.1, S.24-40
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Chen, H.; Yim, T.; Fye, D.: Automatic thesaurus generation for an electronic community system (1995)
0.00
0.00137738 = product of:
0.010330349 = sum of:
0.007863713 = weight(_text_:und in 2918) [ClassicSimilarity], result of:
0.007863713 = score(doc=2918,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.12243814 = fieldWeight in 2918, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0390625 = fieldNorm(doc=2918)
0.0024666358 = product of:
0.0049332716 = sum of:
0.0049332716 = weight(_text_:information in 2918) [ClassicSimilarity], result of:
0.0049332716 = score(doc=2918,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.09697737 = fieldWeight in 2918, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=2918)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Source
- Journal of the American Society for Information Science. 46(1995) no.3, S.175-193
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996)
0.00
9.1609627E-4 = product of:
0.013741443 = sum of:
0.013741443 = product of:
0.027482886 = sum of:
0.027482886 = weight(_text_:22 in 7238) [ClassicSimilarity], result of:
0.027482886 = score(doc=7238,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.2708308 = fieldWeight in 7238, 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=7238)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Date
- 22. 4.1997 20:43:23
-
Davies, R.: Thesaurus-aided searching in search and retrieval protocols (1996)
0.00
8.387961E-4 = product of:
0.012581941 = sum of:
0.012581941 = weight(_text_:und in 5169) [ClassicSimilarity], result of:
0.012581941 = score(doc=5169,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.19590102 = fieldWeight in 5169, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0625 = fieldNorm(doc=5169)
0.06666667 = coord(1/15)
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004)
0.00
7.852253E-4 = product of:
0.011778379 = sum of:
0.011778379 = product of:
0.023556758 = sum of:
0.023556758 = weight(_text_:22 in 131) [ClassicSimilarity], result of:
0.023556758 = score(doc=131,freq=2.0), product of:
0.101476215 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.028978055 = queryNorm
0.23214069 = fieldWeight in 131, 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=131)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Date
- 10. 9.2000 17:38:22
-
Bates, M.J.: Subject access in online catalogs: a design model (1986)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 120) [ClassicSimilarity], result of:
0.01381316 = score(doc=120,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 120, 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=120)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Journal of the American Society for Information Science. 37(1986), S.357-367
-
Intelligent information systems: progress and prospects (1986)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 1050) [ClassicSimilarity], result of:
0.01381316 = score(doc=1050,freq=8.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 1050, 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=1050)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Content
- Enthält die Beiträge: SOMMERVILLE, I., M. WOOD: A software components catalogue; COELHO, H.: Library manager: a case study in knowledge engineering; DAVIES, R.: Cataloguing as a domain for an expert system; POLLITT, A.S.: A rule-base system as an intermediary for searching cancer therapy literature on MEDLINE; LEBOWITZ, M.: An experiment in intelligent information systems: RESEARCHER; VICKERY, A., H.M. BROOKS u. B.C. VICKERY: An expert system for referral: the PLEXUS project; RICH, E.: Users are individuals: individualizing user models; INGWERSEN, P.: Cognitive analysis and the role of the intermediary in information retrieval; SHAW, M.L.G. u. B.R. GAINES: A cognitive model for intelligent information systems; DAVIES, R.: Classification and ratiocination: a perennial quest
-
Piternick, A.B.: Vocabularies for online subject searching (1990)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 1330) [ClassicSimilarity], result of:
0.01381316 = score(doc=1330,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 1330, 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=1330)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Encyclopedia of library and information science. Vol.45, [=Suppl.10]
-
Zeng, L.: Achieving compatibility of indexing languages in online access environment (1992)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 1284) [ClassicSimilarity], result of:
0.01381316 = score(doc=1284,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 1284, 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=1284)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Encyclopedia of library and information science. Vol.50, [=Suppl.13]
-
Miller, U.; Teitelbaum, R.: Pre-coordination and post-coordination : past and future (2002)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 1395) [ClassicSimilarity], result of:
0.01381316 = score(doc=1395,freq=8.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 1395, 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=1395)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Abstract
- This article deals with the meaningful processing of information in relation to two systems of Information processing: pre-coordination and post-coordination. The different approaches are discussed, with emphasis an the need for a controlled vocabulary in information retrieval. Assigned indexing, which employs a controlled vocabulary, is described in detail. Types of indexing language can be divided into two broad groups - those using pre-coordinated terms and those depending an post-coordination. They represent two different basic approaches in processing and Information retrieval. The historical development of these two approaches is described, as well as the two tools that apply to these approaches: thesauri and subject headings.
-
Hjoerland, B.; Kyllesbech Nielsen, L.: Subject access points in electronic retrieval (2001)
0.00
4.604387E-4 = product of:
0.00690658 = sum of:
0.00690658 = product of:
0.01381316 = sum of:
0.01381316 = weight(_text_:information in 3826) [ClassicSimilarity], result of:
0.01381316 = score(doc=3826,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.27153665 = fieldWeight in 3826, 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=3826)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Annual review of information science and technology. 35(2001), S.249-298
-
Gomez, L.; Lochbaum, C.C.; Landauer, T.K.: All the right words: finding what you want as an function of richness of indexing vocabulary (1990)
0.00
3.9466174E-4 = product of:
0.005919926 = sum of:
0.005919926 = product of:
0.011839852 = sum of:
0.011839852 = weight(_text_:information in 154) [ClassicSimilarity], result of:
0.011839852 = score(doc=154,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.23274569 = fieldWeight in 154, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.09375 = fieldNorm(doc=154)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Journal of the American Society for information Science. 41(1990) no.8, S.547-559
